go/zodb/fs1: Test FileStorage on all py2/py3 ZODB kinds of data we care about

Previously we were testing FileStorage/go only with data generated by
python and pickle protocol=2. However even on py2 there are more pickle
protocols that are in use, and also there is python3.

-> Modernize py/gen-testdata to use run_with_all_zodb_pickle_kinds
   that was recently added as part of nexedi/zodbtools@f9d36ba7
   and generate test data with both python2 and python3. It is handy to
   use py2py3-venv(*) to prepare python environment to do that.

   Adjust tests on Go side to verify how FileStorage handles all generated zkinds.

py2_pickle1, py2_pickle2 and py2_pickle3 are handled well.
Tests for py3_pickle3 currently fail and so are marked with "xfail".

We will fix tests for py3_pickle3 in follow-up patches.

Old testdata are not yet removed because e.g. fs1tools and zodbdump
tests depend on them. We will remove old fs1 testdata after adjusting
tests in dependent packages step-by-step.

(*) see nexedi/zodbtools@fac2f190

go/zodb/storage/fs1/filestorage_test.go

-// Copyright (C) 2017-2021  Nexedi SA and Contributors.
+// Copyright (C) 2017-2024  Nexedi SA and Contributors.
 //                          Kirill Smelkov <kirr@nexedi.com>
 //
 // This program is free software: you can Use, Study, Modify and Redistribute
@@ -33,6 +33,17 @@ import (
 	"lab.nexedi.com/kirr/go123/exc"
 )
 
+// ztestdataReg maintains registry of all entries under testdata/ .
+var ztestdataReg = xtesting.ZTestDataRegistry[_TestDataOK]{}
+type ZTestData   = xtesting.ZTestData[_TestDataOK]
+
+// _TestDataOK describes expected data for one entry under testdata/ .
+type _TestDataOK struct {
+	_1fs_indexTopPos int64	      // topPos of 1fs.index
+	_1fs_indexEntryv []indexEntry // index content
+	_1fs_dbEntryv    []dbEntry    // database content
+}
+
 // one database transaction record
 type dbEntry struct {
 	Header TxnHeader
@@ -73,21 +84,33 @@ func xfsopenopt(t testing.TB, path string, opt *zodb.DriverOptions) (*FileStorag
 }
 
 func TestEmptyDB(t *testing.T) {
-	fs, _ := xfsopen(t, "testdata/empty.fs")
+	ztestdataReg.RunWithEach(t, _TestEmptyDB)
+}
+func _TestEmptyDB(t *testing.T, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		t.Skip("xfail")
+	}
+	fs, _ := xfsopen(t, z.Path("empty.fs"))
 	defer exc.XRun(fs.Close)
 
 	xtesting.DrvTestEmptyDB(t, fs)
 }
 
 func TestLoad(t *testing.T) {
-	fs, _ := xfsopen(t, "testdata/1.fs")
+	ztestdataReg.RunWithEach(t, _TestLoad)
+}
+func _TestLoad(t *testing.T, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		t.Skip("xfail")
+	}
+	fs, _ := xfsopen(t, z.Path("1.fs"))
 	defer exc.XRun(fs.Close)
 
 	// NOTE don't use xtesting.LoadDBHistory here - it is itself tested
 	// with the assumption that fs1.Load and fs1.Iterate work correctly.
 	// Use what testdata generator gave use with what to expect.
 	txnv := []xtesting.Txn{}
-	for _, dbe := range _1fs_dbEntryv {
+	for _, dbe := range z.Misc._1fs_dbEntryv {
 		txn := xtesting.Txn{Header: &zodb.TxnInfo{
 			Tid: dbe.Header.Tid,
 
@@ -221,12 +244,20 @@ func testIterate(t *testing.T, fs *FileStorage, tidMin, tidMax zodb.Tid, expectv
 
 // TODO -> xtesting
 func TestIterate(t *testing.T) {
-	fs, _ := xfsopen(t, "testdata/1.fs")
+	ztestdataReg.RunWithEach(t, _TestIterate)
+}
+func _TestIterate(t *testing.T, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		t.Skip("xfail")
+	}
+	zz := z.Misc
+
+	fs, _ := xfsopen(t, z.Path("1.fs"))
 	defer exc.XRun(fs.Close)
 
 	// all []tids in test database
 	tidv := []zodb.Tid{}
-	for _, dbe := range _1fs_dbEntryv {
+	for _, dbe := range zz._1fs_dbEntryv {
 		tidv = append(tidv, dbe.Header.Tid)
 	}
 
@@ -248,17 +279,23 @@ func TestIterate(t *testing.T) {
 			}
 
 			//fmt.Printf("%d%+d .. %d%+d\t -> %d steps\n", i, ii-1, j, jj-1, nsteps)
-			testIterate(t, fs, tmin, tmax, _1fs_dbEntryv[i + ii/2:][:nsteps])
+			testIterate(t, fs, tmin, tmax, zz._1fs_dbEntryv[i + ii/2:][:nsteps])
 		}}
 	}}
 
 	// also check 0..tidMax
-	testIterate(t, fs, 0, zodb.TidMax, _1fs_dbEntryv[:])
+	testIterate(t, fs, 0, zodb.TidMax, zz._1fs_dbEntryv[:])
 }
 
 // TODO -> xtesting
 func BenchmarkIterate(b *testing.B) {
-	fs, _ := xfsopen(b, "testdata/1.fs")
+	ztestdataReg.BenchWithEach(b, _BenchmarkIterate)
+}
+func _BenchmarkIterate(b *testing.B, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		b.Skip("xfail")
+	}
+	fs, _ := xfsopen(b, z.Path("1.fs"))
 	defer exc.XRun(fs.Close)
 
 	ctx := context.Background()
@@ -307,12 +344,19 @@ func TestWatch(t *testing.T) {
 // TestOpenRecovery verifies how Open handles data file with not-finished voted
 // transaction in the end.
 func TestOpenRecovery(t *testing.T) {
+	ztestdataReg.RunWithEach(t, _TestOpenRecovery)
+}
+func _TestOpenRecovery(t *testing.T, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		t.Skip("xfail")
+	}
 	X := exc.Raiseif
-	main, err := ioutil.ReadFile("testdata/1.fs"); X(err)
-	index, err := ioutil.ReadFile("testdata/1.fs.index"); X(err)
-	headOk := _1fs_dbEntryv[len(_1fs_dbEntryv)-1].Header.Tid
-	topPos := int64(_1fs_indexTopPos)
-	voteTail, err := ioutil.ReadFile("testdata/1voted.tail"); X(err)
+	zz := z.Misc
+	main, err := ioutil.ReadFile(z.Path("1.fs")); X(err)
+	index, err := ioutil.ReadFile(z.Path("1.fs.index")); X(err)
+	headOk := zz._1fs_dbEntryv[len(zz._1fs_dbEntryv)-1].Header.Tid
+	topPos := int64(zz._1fs_indexTopPos)
+	voteTail, err := ioutil.ReadFile(z.Path("1voted.tail")); X(err)
 
 	workdir := xworkdir(t)
 	ctx := context.Background()
@@ -381,7 +425,13 @@ func TestOpenRecovery(t *testing.T) {
 // FileStorage/py.deleteObject allows to create whiteouts instead of raising
 // POSKeyError.
 func TestLoadWhiteout(t *testing.T) {
-	fs, _ := xfsopen(t, "testdata/whiteout.fs")
+	ztestdataReg.RunWithEach(t, _TestLoadWhiteout)
+}
+func _TestLoadWhiteout(t *testing.T, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		t.Skip("xfail")
+	}
+	fs, _ := xfsopen(t, z.Path("whiteout.fs"))
 	defer exc.XRun(fs.Close)
 
 	xid := zodb.Xid{At: zodb.Tid(0x17), Oid: zodb.Oid(1)}

go/zodb/storage/fs1/index_test.go

-// Copyright (C) 2017-2019  Nexedi SA and Contributors.
+// Copyright (C) 2017-2024  Nexedi SA and Contributors.
 //                          Kirill Smelkov <kirr@nexedi.com>
 //
 // This program is free software: you can Use, Study, Modify and Redistribute
@@ -19,7 +19,8 @@
 
 package fs1
 
-//go:generate ./py/gen-testdata
+//go:generate python2 py/gen-testdata
+//go:generate python3 py/gen-testdata
 
 import (
 	"context"
@@ -183,61 +184,80 @@ func TestIndexSaveLoad(t *testing.T) {
 	// {0xb000000000000000, 0x7fffffffffffffff}, // will cause 'entry position too large'
 }
 
-var _1fs_index = func() *Index {
+func (z *_TestDataOK) _1fs_index() *Index {
 	idx := IndexNew()
-	idx.TopPos = _1fs_indexTopPos
-	setIndex(idx, _1fs_indexEntryv[:])
+	idx.TopPos = z._1fs_indexTopPos
+	setIndex(idx, z._1fs_indexEntryv)
 	return idx
-}()
+}
 
 // test that we can correctly load index data as saved by zodb/py
 func TestIndexLoadFromPy(t *testing.T) {
-	fsiPy, err := LoadIndexFile("testdata/1.fs.index")
+	ztestdataReg.RunWithEach(t, _TestIndexLoadFromPy)
+}
+func _TestIndexLoadFromPy(t *testing.T, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		t.Skip("xfail")
+	}
+	fsiPy, err := LoadIndexFile(z.Path("1.fs.index"))
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	checkIndexEqual(t, "index load", fsiPy, _1fs_index)
+	checkIndexEqual(t, "index load", fsiPy, z.Misc._1fs_index())
 }
 
 // test zodb/py can read index data as saved by us
 func TestIndexSaveToPy(t *testing.T) {
-	xtesting.NeedPy(t, "ZODB")
-	workdir := xworkdir(t)
+	ztestdataReg.RunWithEach(t, _TestIndexSaveToPy)
+}
+func _TestIndexSaveToPy(t *testing.T, z *ZTestData) {
+	xtesting.WithEachPy(t, func(t *testing.T) {
+		if strings.HasSuffix(t.Name(), "/py3") {
+			t.Skip("xfail")
+		}
+		xtesting.NeedPy(t, "ZODB")
+		workdir := xworkdir(t)
 
-	err := _1fs_index.SaveFile(workdir + "/1.fs.index")
-	if err != nil {
-		t.Fatal(err)
-	}
+		_1fs_index := z.Misc._1fs_index()
 
-	// now ask python part to compare testdata and saved-by-us index
-	cmd := exec.Command("./py/indexcmp", "testdata/1.fs.index", workdir+"/1.fs.index")
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-	err = cmd.Run()
-	if err != nil {
-		t.Fatalf("zodb/py read/compare index: %v", err)
-	}
+		err := _1fs_index.SaveFile(workdir + "/1.fs.index")
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		// now ask python part to compare testdata and saved-by-us index
+		cmd := exec.Command("./py/indexcmp", z.Path("1.fs.index"), workdir+"/1.fs.index")
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		err = cmd.Run()
+		if err != nil {
+			t.Fatalf("zodb/py read/compare index: %v", err)
+		}
+	})
 }
 
 func TestIndexBuildVerify(t *testing.T) {
-	index, err := BuildIndexForFile(context.Background(), "testdata/1.fs", nil)
+	ztestdataReg.RunWithEach(t, _TestIndexBuildVerify)
+}
+func _TestIndexBuildVerify(t *testing.T, z *ZTestData) {
+	index, err := BuildIndexForFile(context.Background(), z.Path("1.fs"), nil)
 	if err != nil {
 		t.Fatalf("index build: %v", err)
 	}
 
-	if !index.Equal(_1fs_index) {
+	if !index.Equal(z.Misc._1fs_index()) {
 		t.Fatal("computed index differ from expected")
 	}
 
-	_, err = index.VerifyForFile(context.Background(), "testdata/1.fs", -1, nil)
+	_, err = index.VerifyForFile(context.Background(), z.Path("1.fs"), -1, nil)
 	if err != nil {
 		t.Fatalf("index verify: %v", err)
 	}
 
 	pos0, _ := index.Get(0)
 	index.Set(0, pos0+1)
-	_, err = index.VerifyForFile(context.Background(), "testdata/1.fs", -1, nil)
+	_, err = index.VerifyForFile(context.Background(), z.Path("1.fs"), -1, nil)
 	if err == nil {
 		t.Fatalf("index verify: expected error after tweak")
 	}
@@ -245,9 +265,15 @@ func TestIndexBuildVerify(t *testing.T) {
 
 
 func BenchmarkIndexLoad(b *testing.B) {
+	ztestdataReg.BenchWithEach(b, _BenchmarkIndexLoad)
+}
+func _BenchmarkIndexLoad(b *testing.B, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		b.Skip("xfail")
+	}
 	// FIXME small testdata/1.fs is not representative for benchmarks
 	for i := 0; i < b.N; i++ {
-		_, err := LoadIndexFile("testdata/1.fs.index")
+		_, err := LoadIndexFile(z.Path("1.fs.index"))
 		if err != nil {
 			b.Fatal(err)
 		}
@@ -255,8 +281,14 @@ func BenchmarkIndexLoad(b *testing.B) {
 }
 
 func BenchmarkIndexSave(b *testing.B) {
+	ztestdataReg.BenchWithEach(b, _BenchmarkIndexSave)
+}
+func _BenchmarkIndexSave(b *testing.B, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		b.Skip("xfail")
+	}
 	// FIXME small testdata/1.fs is not representative for benchmarks
-	index, err := LoadIndexFile("testdata/1.fs.index")
+	index, err := LoadIndexFile(z.Path("1.fs.index"))
 	if err != nil {
 		b.Fatal(err)
 	}
@@ -273,8 +305,14 @@ func BenchmarkIndexSave(b *testing.B) {
 }
 
 func BenchmarkIndexGet(b *testing.B) {
+	ztestdataReg.BenchWithEach(b, _BenchmarkIndexGet)
+}
+func _BenchmarkIndexGet(b *testing.B, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		b.Skip("xfail")
+	}
 	// FIXME small testdata/1.fs is not representative for benchmarks
-	fsi, err := LoadIndexFile("testdata/1.fs.index")
+	fsi, err := LoadIndexFile(z.Path("1.fs.index"))
 	if err != nil {
 		b.Fatal(err)
 	}

go/zodb/storage/fs1/py/gen-testdata

-#!/usr/bin/env python2
+#!/usr/bin/env python
 # -*- coding: utf-8 -*-
-# Copyright (C) 2017-2021  Nexedi SA and Contributors.
+# Copyright (C) 2017-2024  Nexedi SA and Contributors.
 #                          Kirill Smelkov <kirr@nexedi.com>
 #
 # This program is free software: you can Use, Study, Modify and Redistribute
@@ -20,13 +20,16 @@
 # See https://www.nexedi.com/licensing for rationale and options.
 """generate reference fs1 database and index for tests"""
 
+from __future__ import print_function
+
 from ZODB.FileStorage import FileStorage
 from ZODB.FileStorage.FileStorage import FILESTORAGE_MAGIC, TxnHeader, DataHeader, TRANS_HDR_LEN
 from ZODB import DB
 from ZODB.Connection import TransactionMetaData
-from zodbtools.test.gen_testdata import gen_testdb, precommit, run_with_zodb4py2_compat
-from os import stat, remove
-from shutil import copyfile
+from zodbtools.test.gen_testdata import gen_testdb, precommit, run_with_all_zodb_pickle_kinds, current_zkind
+from os import stat, remove, makedirs
+from os.path import exists, relpath
+from shutil import copyfile, rmtree
 from golang.gcompat import qq
 
 import struct
@@ -41,29 +44,44 @@ def unpack64(packed):
 def hex64(packed):
     return '0x%016x' % unpack64(packed)
 
+# bchar returns bytes corresponding to bytes_data[i].
+# it works as bytes_data[i] on py2, but on py3, contrary to builtin behaviour, also returns bytes instead of int.
+def bchar(bytes_data, i): # -> bytes
+    if i >= len(bytes_data):
+        raise IndexError('index out of range')
+    return bytes_data[i:i+1]
 
-def main():
-    outfs = "testdata/1.fs"
+
+def main2():
+    zkind = current_zkind()
+    prefix = "testdata/%s" % zkind
+    if exists(prefix):
+        rmtree(prefix)
+    makedirs(prefix)
+
+    outfs = "%s/1.fs" % prefix
     gen_testdb(outfs)
 
     # dump to go what to expect
     stor = FileStorage(outfs, read_only=True)
-    with open("ztestdata_expect_test.go", "w") as f:
+    with open("ztestdata_expect_%s_test.go" % zkind, "w") as f:
         def emit(v):
-            print >>f, v
-        emit("// Code generated by %s; DO NOT EDIT." % __file__)
+            print(v, file=f)
+        emit("// Code generated by %s; DO NOT EDIT." % relpath(__file__))
         emit("package fs1\n")
         emit("import \"lab.nexedi.com/kirr/neo/go/zodb\"\n")
 
+        emit("func init() {")
+
         # index
-        emit("const _1fs_indexTopPos = %i" % stor._pos)
-        emit("var _1fs_indexEntryv = [...]indexEntry{")
+        emit("\tconst _1fs_indexTopPos = %i" % stor._pos)
+        emit("\tvar _1fs_indexEntryv = []indexEntry{")
         for k, v in stor._index.iteritems():
-            emit("\t{%8i, %8i}," % (unpack64(k), v))
-        emit("}")
+            emit("\t\t{%8i, %8i}," % (unpack64(k), v))
+        emit("\t}")
 
         # database records
-        emit("\nvar _1fs_dbEntryv = [...]dbEntry{")
+        emit("\n\tvar _1fs_dbEntryv = []dbEntry{")
         txnLenPrev = 0
         for txn in stor.iterator():     # txn is TransactionRecord
             # txn.extension is already depickled dict - we want to put raw data from file
@@ -76,26 +94,26 @@ def main():
             # fs1/go keeps in RAM whole txn length, not len-8 as it is on disk
             txnLen = th.tlen + 8
 
-            emit("\t{")
+            emit("\t\t{")
 
             # -> TxnHeader
-            emit("\t\tTxnHeader{")
-            emit("\t\t\tPos:\t  %i," % txn._tpos)
-            emit("\t\t\tLenPrev:  %i," % txnLenPrev)
-            emit("\t\t\tLen:\t  %i," % txnLen)
-            emit("\t\t\tTxnInfo:\tzodb.TxnInfo{")
-            emit("\t\t\t\tTid:\t%s," % hex64(txn.tid))
-            emit("\t\t\t\tStatus:\t'%s'," % txn.status)
-            emit("\t\t\t\tUser:\t\t[]byte(%s)," % qq(txn.user))
-            emit("\t\t\t\tDescription:\t[]byte(%s)," % qq(txn.description))
-            emit("\t\t\t\tExtension:\t[]byte(%s)," % qq(th.ext))
+            emit("\t\t\tTxnHeader{")
+            emit("\t\t\t\tPos:\t  %i," % txn._tpos)
+            emit("\t\t\t\tLenPrev:  %i," % txnLenPrev)
+            emit("\t\t\t\tLen:\t  %i," % txnLen)
+            emit("\t\t\t\tTxnInfo:\tzodb.TxnInfo{")
+            emit("\t\t\t\t\tTid:\t%s," % hex64(txn.tid))
+            emit("\t\t\t\t\tStatus:\t'%s'," % txn.status)
+            emit("\t\t\t\t\tUser:\t\t[]byte(%s)," % qq(txn.user))
+            emit("\t\t\t\t\tDescription:\t[]byte(%s)," % qq(txn.description))
+            emit("\t\t\t\t\tExtension:\t[]byte(%s)," % qq(th.ext))
+            emit("\t\t\t\t},")
             emit("\t\t\t},")
-            emit("\t\t},")
 
             txnLenPrev = txnLen
 
             # -> DataHeader + payload
-            emit("\n\t\t[]txnEntry{")
+            emit("\n\t\t\t[]txnEntry{")
 
             for drec in txn:            # drec is itemof(TransactionRecordIterator) = Record
                 # same as with txn - not everything is possible to get via
@@ -105,17 +123,17 @@ def main():
                 assert dh.tid == drec.tid
                 assert dh.tloc == txn._tpos
 
-                emit("\t\t\t{")
-                emit("\t\t\t\tDataHeader{")
-                emit("\t\t\t\t\tPos:\t%i," % drec.pos)
-                emit("\t\t\t\t\tOid:\t%i," % unpack64(drec.oid))
-                emit("\t\t\t\t\tTid:\t%s," % hex64(drec.tid))
+                emit("\t\t\t\t{")
+                emit("\t\t\t\t\tDataHeader{")
+                emit("\t\t\t\t\t\tPos:\t%i," % drec.pos)
+                emit("\t\t\t\t\t\tOid:\t%i," % unpack64(drec.oid))
+                emit("\t\t\t\t\t\tTid:\t%s," % hex64(drec.tid))
 
-                emit("\t\t\t\t\tPrevRevPos:\t%i," % dh.prev)
-                emit("\t\t\t\t\tTxnPos:\t%i," % txn._tpos)
+                emit("\t\t\t\t\t\tPrevRevPos:\t%i," % dh.prev)
+                emit("\t\t\t\t\t\tTxnPos:\t%i," % txn._tpos)
                 assert drec.version == ''
-                emit("\t\t\t\t\tDataLen:\t%i," % dh.plen)
-                emit("\t\t\t\t},")
+                emit("\t\t\t\t\t\tDataLen:\t%i," % dh.plen)
+                emit("\t\t\t\t\t},")
                 plen = dh.plen
                 if plen == 0:
                     rawdata = p64(dh.back) # back-pointer or 0 (= delete)
@@ -130,19 +148,22 @@ def main():
                     data = "/* same as ^^^ */ sameAsRaw"
                     datatid = "/* no copy */ 0"
 
-                emit("\t\t\t\t[]byte(%s)," % qq(rawdata))
-                emit("\t\t\t\t%s," % data)
-                emit("\t\t\t\t%s," % datatid)
-                emit("\t\t\t},")
+                emit("\t\t\t\t\t[]byte(%s)," % qq(rawdata))
+                emit("\t\t\t\t\t%s," % data)
+                emit("\t\t\t\t\t%s," % datatid)
+                emit("\t\t\t\t},")
 
+            emit("\t\t\t},")
             emit("\t\t},")
-            emit("\t},")
+        emit("\t}")
+
+        emit("\n\tztestdataReg.Register(%s, %s, &_TestDataOK{_1fs_indexTopPos, _1fs_indexEntryv, _1fs_dbEntryv})" % (qq(zkind), qq(prefix)))
         emit("}")
     stor.close()
 
 
     # prepare file with voted (not fully committed) tail
-    voted = "testdata/1voted.fs"
+    voted = "%s/1voted.fs" % prefix
     copyfile(outfs, voted)
     def _():
         vstor = FileStorage(voted)
@@ -154,19 +175,19 @@ def main():
         txn = precommit(u"author", u"description", {'aaa': 'bbb'})
         txn_stormeta = TransactionMetaData(txn.user, txn.description, txn.extension)
         vstor.tpc_begin(txn_stormeta)
-        vstor.store(vroot._p_oid, vroot._p_serial, '000 data 000', '', txn_stormeta)
+        vstor.store(vroot._p_oid, vroot._p_serial, b'000 data 000', '', txn_stormeta)
         vstor.tpc_vote(txn_stormeta)
         # NO tpc_finish here so that status remain 'c' (voted) instead of ' ' (committed)
-    run_with_zodb4py2_compat(_)
+    _()
 
     st = stat(outfs)
     l  = st.st_size
     vf = open(voted, 'rb')
     vf.seek(l)
     voted_tail = vf.read()
-    assert voted_tail[-1+8+8+1] == 'c'  # voted, not finished (' ')
+    assert bchar(voted_tail, -1+8+8+1) == b'c'  # voted, not finished (' ')
 
-    with open("testdata/1voted.tail", "wb") as vt:
+    with open("%s/1voted.tail" % prefix, "wb") as vt:
         vt.write(voted_tail)
 
     remove(voted)
@@ -176,7 +197,7 @@ def main():
 
 
     # prepare file with whiteout (deletion of previously non-existing object)
-    whiteout = "testdata/whiteout.fs"
+    whiteout = "%s/whiteout.fs" % prefix
     # as of 20210317 FileStorage.deleteObject verifies that object exists
     # -> prepare magic/transaction/data records manually
     with open(whiteout, "wb") as f:
@@ -206,5 +227,14 @@ def main():
         f.write(p64(tlen))
 
 
+    # prepare empty.fs
+    empty = "%s/empty.fs" % prefix
+    with open(empty, "wb") as f:
+        f.write(FILESTORAGE_MAGIC)
+
+
+def main():
+    run_with_all_zodb_pickle_kinds(main2)
+
 if __name__ == '__main__':
     main()

go/zodb/storage/fs1/py/indexcmp

-#!/usr/bin/env python2
-# Copyright (C) 2017  Nexedi SA and Contributors.
-#                     Kirill Smelkov <kirr@nexedi.com>
+#!/usr/bin/env python
+# Copyright (C) 2017-2024  Nexedi SA and Contributors.
+#                          Kirill Smelkov <kirr@nexedi.com>
 #
 # This program is free software: you can Use, Study, Modify and Redistribute
 # it under the terms of the GNU General Public License version 3, or (at your
@@ -19,6 +19,8 @@
 # See https://www.nexedi.com/licensing for rationale and options.
 """compare two ZODB FileStorage v1 index files"""
 
+from __future__ import print_function
+
 from ZODB.fsIndex import fsIndex
 import sys
 
@@ -31,9 +33,9 @@ def main():
     topPos1, fsi1 = d1["pos"], d1["index"]
     topPos2, fsi2 = d2["pos"], d2["index"]
 
-    #print topPos1, topPos2
-    #print fsi1.items()
-    #print fsi2.items()
+    #print(topPos1, topPos2)
+    #print(fsi1.items())
+    #print(fsi2.items())
     equal = (topPos1 == topPos2 and fsi1.items() == fsi2.items())
     sys.exit(int(not equal))
 

go/zodb/storage/fs1/testdata/.gitignore

-/*.lock
-/*.tmp
-/*.tr[0-9]
+*.lock
+*.tmp
+*.tr[0-9]
+*.old

go/zodb/storage/fs1/testdata/py2_pickle1/empty.fs

+FS21
\ No newline at end of file

go/zodb/storage/fs1/testdata/py2_pickle2/empty.fs

+FS21
\ No newline at end of file

go/zodb/storage/fs1/testdata/py2_pickle3/empty.fs

+FS21
\ No newline at end of file

go/zodb/storage/fs1/testdata/py3_pickle3/empty.fs

+FS30
\ No newline at end of file

go/zodb/storage/fs1/ztestdata_expect_py2_pickle1_test.go

+// Code generated by py/gen-testdata; DO NOT EDIT.
+package fs1
+
+import "lab.nexedi.com/kirr/neo/go/zodb"
+
+func init() {
+	const _1fs_indexTopPos = 13817
+	var _1fs_indexEntryv = []indexEntry{
+		{       0,    13197},
+		{       1,    10888},
+		{       2,    13759},
+		{       3,    10120},
+		{       5,     8789},
+		{       6,     7695},
+		{       7,    10504},
+		{       8,    11656},
+		{       9,    12898},
+		{      10,    13474},
+	}
+
+	var _1fs_dbEntryv = []dbEntry{
+		{
+			TxnHeader{
+				Pos:	  4,
+				LenPrev:  0,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac70a3d733,
+					Status:	'p',
+					User:		[]byte("user0.12"),
+					Description:	[]byte("step 0.12"),
+					Extension:	[]byte("}q\x01(U\tx-cookie8U\x052MHMUU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	97,
+						Oid:	1,
+						Tid:	0x0285cbac70a3d733,
+						PrevRevPos:	0,
+						TxnPos:	4,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05f0.12q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  196,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac7eb85219,
+					Status:	'p',
+					User:		[]byte("user0.15"),
+					Description:	[]byte("step 0.15"),
+					Extension:	[]byte("}q\x01(U\tx-cookieYU\x05EDZ10U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	289,
+						Oid:	6,
+						Tid:	0x0285cbac7eb85219,
+						PrevRevPos:	0,
+						TxnPos:	196,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e0.15q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  388,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac917e4b4c,
+					Status:	'p',
+					User:		[]byte("user0.19"),
+					Description:	[]byte("step 0.19"),
+					Extension:	[]byte("}q\x01(U\tx-cookieFU\x05OUC9LU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	481,
+						Oid:	5,
+						Tid:	0x0285cbac917e4b4c,
+						PrevRevPos:	0,
+						TxnPos:	388,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05a0.19q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  580,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac9ae147e6,
+					Status:	'p',
+					User:		[]byte("user0.21"),
+					Description:	[]byte("step 0.21"),
+					Extension:	[]byte("}q\x01(U\tx-cookie8U\x050QC1AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	673,
+						Oid:	2,
+						Tid:	0x0285cbac9ae147e6,
+						PrevRevPos:	0,
+						TxnPos:	580,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05d0.21q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  772,
+				LenPrev:  192,
+				Len:	  255,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacada74119,
+					Status:	'p',
+					User:		[]byte("root0.0\nYour\nMagesty "),
+					Description:	[]byte("undo 0.0\nmore detailed description\n\nzzz ..."),
+					Extension:	[]byte("}q\x01(U\tx-cookieKU\x05G95IHU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrKRERIA=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	928,
+						Oid:	7,
+						Tid:	0x0285cbacada74119,
+						PrevRevPos:	0,
+						TxnPos:	772,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05c0.22q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1027,
+				LenPrev:  255,
+				Len:	  256,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacb258bf66,
+					Status:	'p',
+					User:		[]byte("root0.1\nYour\nMagesty "),
+					Description:	[]byte("undo 0.1\nmore detailed description\n\nzzz ...\t"),
+					Extension:	[]byte("}q\x01(U\tx-cookieVU\x05VHBGTU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrKj1wsw=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1184,
+						Oid:	3,
+						Tid:	0x0285cbacb258bf66,
+						PrevRevPos:	0,
+						TxnPos:	1027,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05g0.11q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1283,
+				LenPrev:  256,
+				Len:	  408,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacbbbbbc00,
+					Status:	'p',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 4"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1317,
+						Oid:	0,
+						Tid:	0x0285cbacbbbbbc00,
+						PrevRevPos:	0,
+						TxnPos:	1283,
+						DataLen:	235,
+					},
+					[]byte("cpersistent.mapping\nPersistentMapping\nq\x01.}q\x02U\x04dataq\x03}q\x04(U\x01a(U\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06tQU\x01c(U\x08\x00\x00\x00\x00\x00\x00\x00\x07q\x07h\x06tQU\x01b(U\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x08h\x06tQU\x01e(U\x08\x00\x00\x00\x00\x00\x00\x00\x06q\th\x06tQU\x01d(U\x08\x00\x00\x00\x00\x00\x00\x00\x02q\nh\x06tQU\x01g(U\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0bh\x06tQU\x01f(U\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0ch\x06tQus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	1594,
+						Oid:	8,
+						Tid:	0x0285cbacbbbbbc00,
+						PrevRevPos:	0,
+						TxnPos:	1283,
+						DataLen:	47,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x03b0*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1691,
+				LenPrev:  408,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad02222280,
+					Status:	' ',
+					User:		[]byte("user1.0"),
+					Description:	[]byte("step 1.0"),
+					Extension:	[]byte("}q\x01(U\tx-cookieEU\x05VAZ3UU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1782,
+						Oid:	6,
+						Tid:	0x0285cbad02222280,
+						PrevRevPos:	289,
+						TxnPos:	1691,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04e1.0q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1880,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad06d3a0cc,
+					Status:	' ',
+					User:		[]byte("user1.1"),
+					Description:	[]byte("step 1.1"),
+					Extension:	[]byte("}q\x01(U\tx-cookieNU\x05GSV4IU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1971,
+						Oid:	8,
+						Tid:	0x0285cbad06d3a0cc,
+						PrevRevPos:	1594,
+						TxnPos:	1880,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04b1.1q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2069,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad0b851f19,
+					Status:	' ',
+					User:		[]byte("user1.2"),
+					Description:	[]byte("step 1.2"),
+					Extension:	[]byte("}q\x01(U\tx-cookieYU\x05A01OKU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2160,
+						Oid:	3,
+						Tid:	0x0285cbad0b851f19,
+						PrevRevPos:	1184,
+						TxnPos:	2069,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04g1.2q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2258,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad10369d66,
+					Status:	' ',
+					User:		[]byte("user1.3"),
+					Description:	[]byte("step 1.3"),
+					Extension:	[]byte("}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (g)U\tx-cookieWU\x051QPNPu."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2349,
+						Oid:	3,
+						Tid:	0x0285cbad10369d66,
+						PrevRevPos:	2160,
+						TxnPos:	2258,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04g1.3q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2447,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad14e81bb3,
+					Status:	' ',
+					User:		[]byte("user1.4"),
+					Description:	[]byte("step 1.4"),
+					Extension:	[]byte("}q\x01(U\tx-cookieCU\x05J7L05U\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2538,
+						Oid:	7,
+						Tid:	0x0285cbad14e81bb3,
+						PrevRevPos:	928,
+						TxnPos:	2447,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04c1.4q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2636,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad19999a00,
+					Status:	' ',
+					User:		[]byte("user1.5"),
+					Description:	[]byte("step 1.5"),
+					Extension:	[]byte("}q\x01(U\tx-cookieAU\x05CM15ZU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2727,
+						Oid:	1,
+						Tid:	0x0285cbad19999a00,
+						PrevRevPos:	97,
+						TxnPos:	2636,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04f1.5q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2825,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad1e4b184c,
+					Status:	' ',
+					User:		[]byte("user1.6"),
+					Description:	[]byte("step 1.6"),
+					Extension:	[]byte("}q\x01(U\tx-cookieIU\x05AH816U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2916,
+						Oid:	2,
+						Tid:	0x0285cbad1e4b184c,
+						PrevRevPos:	673,
+						TxnPos:	2825,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04d1.6q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3014,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad22fc9699,
+					Status:	' ',
+					User:		[]byte("user1.7"),
+					Description:	[]byte("step 1.7"),
+					Extension:	[]byte("}q\x01(U\tx-cookieUU\x05BE3WHU\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	3105,
+						Oid:	7,
+						Tid:	0x0285cbad22fc9699,
+						PrevRevPos:	2538,
+						TxnPos:	3014,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04c1.7q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3203,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad27ae14e6,
+					Status:	' ',
+					User:		[]byte("user1.8"),
+					Description:	[]byte("step 1.8"),
+					Extension:	[]byte("}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (c)U\tx-cookieWU\x05HPFAQu."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	3294,
+						Oid:	7,
+						Tid:	0x0285cbad27ae14e6,
+						PrevRevPos:	3105,
+						TxnPos:	3203,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04c1.8q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3392,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad2c5f9333,
+					Status:	' ',
+					User:		[]byte("user1.9"),
+					Description:	[]byte("step 1.9"),
+					Extension:	[]byte("}q\x01(U\tx-cookieQU\x05DZM23U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	6,
+						Tid:	0x0285cbad2c5f9333,
+						PrevRevPos:	1782,
+						TxnPos:	3392,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04e1.9q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3581,
+				LenPrev:  189,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad31111180,
+					Status:	' ',
+					User:		[]byte("user1.10"),
+					Description:	[]byte("step 1.10"),
+					Extension:	[]byte("}q\x01(U\tx-cookieOU\x05EIGHLU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	5,
+						Tid:	0x0285cbad31111180,
+						PrevRevPos:	481,
+						TxnPos:	3581,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05a1.10q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3773,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad35c28fcc,
+					Status:	' ',
+					User:		[]byte("user1.11"),
+					Description:	[]byte("step 1.11"),
+					Extension:	[]byte("}q\x01(U\tx-cookie2U\x05Z9RFCU\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	3866,
+						Oid:	7,
+						Tid:	0x0285cbad35c28fcc,
+						PrevRevPos:	3294,
+						TxnPos:	3773,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05c1.11q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3965,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad3a740e19,
+					Status:	' ',
+					User:		[]byte("user1.12"),
+					Description:	[]byte("step 1.12"),
+					Extension:	[]byte("}q\x01(U\tx-cookie7U\x05WGO4EU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	6,
+						Tid:	0x0285cbad3a740e19,
+						PrevRevPos:	3483,
+						TxnPos:	3965,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e1.12q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  4157,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad3f258c66,
+					Status:	' ',
+					User:		[]byte("user1.13"),
+					Description:	[]byte("step 1.13"),
+					Extension:	[]byte("}q\x01(U\tx-cookie5U\x05757DJU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	4250,
+						Oid:	3,
+						Tid:	0x0285cbad3f258c66,
+						PrevRevPos:	2349,
+						TxnPos:	4157,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05g1.13q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  4349,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad43d70ab3,
+					Status:	' ',
+					User:		[]byte("user1.14"),
+					Description:	[]byte("step 1.14"),
+					Extension:	[]byte("}q\x01(U\tx-cookieXU\x055EOVHU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	4442,
+						Oid:	3,
+						Tid:	0x0285cbad43d70ab3,
+						PrevRevPos:	4250,
+						TxnPos:	4349,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05g1.14q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  4541,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad48888900,
+					Status:	' ',
+					User:		[]byte("user1.15"),
+					Description:	[]byte("step 1.15"),
+					Extension:	[]byte("}q\x01(U\tx-cookieCU\x05HO7L7U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	4634,
+						Oid:	2,
+						Tid:	0x0285cbad48888900,
+						PrevRevPos:	2916,
+						TxnPos:	4541,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05d1.15q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  4733,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad4d3a074c,
+					Status:	' ',
+					User:		[]byte("user1.16"),
+					Description:	[]byte("step 1.16"),
+					Extension:	[]byte("}q\x01(U\tx-cookieUU\x05T159SU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	4826,
+						Oid:	3,
+						Tid:	0x0285cbad4d3a074c,
+						PrevRevPos:	4442,
+						TxnPos:	4733,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05g1.16q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  4925,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad51eb8599,
+					Status:	' ',
+					User:		[]byte("user1.17"),
+					Description:	[]byte("step 1.17"),
+					Extension:	[]byte("}q\x01(U\tx-cookie8U\x05T23V1U\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	5018,
+						Oid:	1,
+						Tid:	0x0285cbad51eb8599,
+						PrevRevPos:	2727,
+						TxnPos:	4925,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05f1.17q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5117,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad569d03e6,
+					Status:	' ',
+					User:		[]byte("user1.18"),
+					Description:	[]byte("step 1.18"),
+					Extension:	[]byte("}q\x01(U\tx-cookieYU\x05UB55NU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	5,
+						Tid:	0x0285cbad569d03e6,
+						PrevRevPos:	3674,
+						TxnPos:	5117,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05a1.18q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5309,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad5b4e8233,
+					Status:	' ',
+					User:		[]byte("user1.19"),
+					Description:	[]byte("step 1.19"),
+					Extension:	[]byte("}q\x01(U\tx-cookieZU\x05IKOSRU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	5402,
+						Oid:	3,
+						Tid:	0x0285cbad5b4e8233,
+						PrevRevPos:	4826,
+						TxnPos:	5309,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05g1.19q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5501,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad60000080,
+					Status:	' ',
+					User:		[]byte("user1.20"),
+					Description:	[]byte("step 1.20"),
+					Extension:	[]byte("}q\x01(U\tx-cookieSU\x057JLTHU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	5594,
+						Oid:	3,
+						Tid:	0x0285cbad60000080,
+						PrevRevPos:	5402,
+						TxnPos:	5501,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05g1.20q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5693,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad64b17ecc,
+					Status:	' ',
+					User:		[]byte("user1.21"),
+					Description:	[]byte("step 1.21"),
+					Extension:	[]byte("}q\x01(U\tx-cookieIU\x05USN06U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	5786,
+						Oid:	6,
+						Tid:	0x0285cbad64b17ecc,
+						PrevRevPos:	4058,
+						TxnPos:	5693,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e1.21q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5885,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad6962fd19,
+					Status:	' ',
+					User:		[]byte("user1.22"),
+					Description:	[]byte("step 1.22"),
+					Extension:	[]byte("}q\x01(U\tx-cookie2U\x05UXAETU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	5978,
+						Oid:	5,
+						Tid:	0x0285cbad6962fd19,
+						PrevRevPos:	5210,
+						TxnPos:	5885,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05a1.22q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6077,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad6e147b66,
+					Status:	' ',
+					User:		[]byte("user1.23"),
+					Description:	[]byte("step 1.23"),
+					Extension:	[]byte("}q\x01(U\tx-cookieHU\x05AT11FU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	6170,
+						Oid:	5,
+						Tid:	0x0285cbad6e147b66,
+						PrevRevPos:	5978,
+						TxnPos:	6077,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05a1.23q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6269,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad72c5f9b3,
+					Status:	' ',
+					User:		[]byte("user1.24"),
+					Description:	[]byte("step 1.24"),
+					Extension:	[]byte("}q\x01(U\tx-cookieDU\x05O5ZEMU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	6362,
+						Oid:	1,
+						Tid:	0x0285cbad72c5f9b3,
+						PrevRevPos:	5018,
+						TxnPos:	6269,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05f1.24q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6461,
+				LenPrev:  192,
+				Len:	  215,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad77777800,
+					Status:	' ',
+					User:		[]byte("root1.0\nYour\nMagesty "),
+					Description:	[]byte("undo 1.0\nmore detailed description\n\nzzz ...\t"),
+					Extension:	[]byte("}q\x01(U\tx-cookie3U\x05G51MMU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrW4Ue2Y=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	6618,
+						Oid:	5,
+						Tid:	0x0285cbad77777800,
+						PrevRevPos:	6170,
+						TxnPos:	6461,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x17Z"),
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05a1.22q\x02."),
+					/* copy from */ 0x0285cbad6962fd19,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6676,
+				LenPrev:  215,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad7c28f64c,
+					Status:	' ',
+					User:		[]byte("root1.1\nYour\nMagesty "),
+					Description:	[]byte("undo 1.1\nmore detailed description\n\nzzz ...\t\t"),
+					Extension:	[]byte("}q\x01(U\tx-cookieLU\x05CDRHVU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrXLF+bM=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	6834,
+						Oid:	1,
+						Tid:	0x0285cbad7c28f64c,
+						PrevRevPos:	6362,
+						TxnPos:	6676,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x13\x9a"),
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05f1.17q\x02."),
+					/* copy from */ 0x0285cbad51eb8599,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6892,
+				LenPrev:  216,
+				Len:	  207,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad80da7499,
+					Status:	' ',
+					User:		[]byte("user"),
+					Description:	[]byte("cyclic reference"),
+					Extension:	[]byte("}q\x01(U\tx-cookie4U\x05C4OMSU\x0bx-generatorq\x02U\x10zodb/py2 (cycle)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	6992,
+						Oid:	6,
+						Tid:	0x0285cbad80da7499,
+						PrevRevPos:	5786,
+						TxnPos:	6892,
+						DataLen:	57,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.(U\x08\x00\x00\x00\x00\x00\x00\x00\x06q\x02h\x01tQ."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  7099,
+				LenPrev:  207,
+				Len:	  408,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad858bf2e6,
+					Status:	' ',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 6"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	7133,
+						Oid:	0,
+						Tid:	0x0285cbad858bf2e6,
+						PrevRevPos:	1317,
+						TxnPos:	7099,
+						DataLen:	235,
+					},
+					[]byte("cpersistent.mapping\nPersistentMapping\nq\x01.}q\x02U\x04dataq\x03}q\x04(U\x01a(U\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06tQU\x01c(U\x08\x00\x00\x00\x00\x00\x00\x00\x07q\x07h\x06tQU\x01b(U\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x08h\x06tQU\x01e(U\x08\x00\x00\x00\x00\x00\x00\x00\tq\th\x06tQU\x01d(U\x08\x00\x00\x00\x00\x00\x00\x00\x02q\nh\x06tQU\x01g(U\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0bh\x06tQU\x01f(U\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0ch\x06tQus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	7410,
+						Oid:	9,
+						Tid:	0x0285cbad858bf2e6,
+						PrevRevPos:	0,
+						TxnPos:	7099,
+						DataLen:	47,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x03e1*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  7507,
+				LenPrev:  408,
+				Len:	  246,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad8a3d7133,
+					Status:	' ',
+					User:		[]byte("root1\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
+					Description:	[]byte("delete 1\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
+					Extension:	[]byte("}q\x01(U\tx-cookieSU\x05XVOTIU\x0bx-generatorq\x02U\x13zodb/py2 (delete 6)u."),
+				},
+			},
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+			[]txnEntry{
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+						Oid:	6,
+						Tid:	0x0285cbad8a3d7133,
+						PrevRevPos:	6992,
+						TxnPos:	7507,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
+					/* deleted */ nil,
+					/* deleted */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  246,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.0"),
+					Description:	[]byte("step 2.0"),
+					Extension:	[]byte("}q\x01(U\tx-cookie1U\x05GRGS2U\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadc740db19,
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+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04f2.0q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.1"),
+					Description:	[]byte("step 2.1"),
+					Extension:	[]byte("}q\x01(U\tx-cookie3U\x05WYNK7U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadcbf25966,
+						PrevRevPos:	4634,
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+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04d2.1q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.2"),
+					Description:	[]byte("step 2.2"),
+					Extension:	[]byte("}q\x01(U\tx-cookieFU\x05SPFA4U\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
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+						Oid:	3,
+						Tid:	0x0285cbadd0a3d7b3,
+						PrevRevPos:	5594,
+						TxnPos:	8131,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04g2.2q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadd5555600,
+					Status:	' ',
+					User:		[]byte("user2.3"),
+					Description:	[]byte("step 2.3"),
+					Extension:	[]byte("}q\x01(U\tx-cookie1U\x05XE3RQU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	3,
+						Tid:	0x0285cbadd5555600,
+						PrevRevPos:	8222,
+						TxnPos:	8320,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04g2.3q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadda06d44c,
+					Status:	' ',
+					User:		[]byte("user2.4"),
+					Description:	[]byte("step 2.4"),
+					Extension:	[]byte("}q\x01(U\tx-cookie2U\x051XYQ2U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadda06d44c,
+						PrevRevPos:	7410,
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+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04e2.4q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.5"),
+					Description:	[]byte("step 2.5"),
+					Extension:	[]byte("}q\x01(U\tx-cookieWU\x05C0ZT2U\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
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+			[]txnEntry{
+				{
+					DataHeader{
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+						Tid:	0x0285cbaddeb85299,
+						PrevRevPos:	6618,
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+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04a2.5q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbade369d0e6,
+					Status:	' ',
+					User:		[]byte("user2.6"),
+					Description:	[]byte("step 2.6"),
+					Extension:	[]byte("}q\x01(U\tx-cookie0U\x05OX40DU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
+				},
+			},
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+			[]txnEntry{
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+						Tid:	0x0285cbade369d0e6,
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+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04b2.6q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbade81b4f33,
+					Status:	' ',
+					User:		[]byte("user2.7"),
+					Description:	[]byte("step 2.7"),
+					Extension:	[]byte("}q\x01(U\tx-cookieYU\x0564CY4U\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbade81b4f33,
+						PrevRevPos:	8411,
+						TxnPos:	9076,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04g2.7q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  9265,
+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadeccccd80,
+					Status:	' ',
+					User:		[]byte("user2.8"),
+					Description:	[]byte("step 2.8"),
+					Extension:	[]byte("}q\x01(U\tx-cookieZU\x05AXYM6U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
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+			[]txnEntry{
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+						Oid:	2,
+						Tid:	0x0285cbadeccccd80,
+						PrevRevPos:	8033,
+						TxnPos:	9265,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04d2.8q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  189,
+				Len:	  189,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadf17e4bcc,
+					Status:	' ',
+					User:		[]byte("user2.9"),
+					Description:	[]byte("step 2.9"),
+					Extension:	[]byte("}q\x01(U\tx-cookie8U\x055WYSBU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
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+			[]txnEntry{
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+						Oid:	9,
+						Tid:	0x0285cbadf17e4bcc,
+						PrevRevPos:	8600,
+						TxnPos:	9454,
+						DataLen:	48,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x04e2.9q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  189,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadf62fca19,
+					Status:	' ',
+					User:		[]byte("user2.10"),
+					Description:	[]byte("step 2.10"),
+					Extension:	[]byte("}q\x01(U\tx-cookie2U\x05F1402U\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
+				},
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+			[]txnEntry{
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+						Oid:	7,
+						Tid:	0x0285cbadf62fca19,
+						PrevRevPos:	3866,
+						TxnPos:	9643,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05c2.10q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadfae14866,
+					Status:	' ',
+					User:		[]byte("user2.11"),
+					Description:	[]byte("step 2.11"),
+					Extension:	[]byte("}q\x01(U\tx-cookieGU\x05Q5FM3U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
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+			[]txnEntry{
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+						Oid:	2,
+						Tid:	0x0285cbadfae14866,
+						PrevRevPos:	9356,
+						TxnPos:	9835,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05d2.11q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
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+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadff92c6b3,
+					Status:	' ',
+					User:		[]byte("user2.12"),
+					Description:	[]byte("step 2.12"),
+					Extension:	[]byte("}q\x01(U\tx-cookie7U\x052EFQBU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
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+			[]txnEntry{
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+						Tid:	0x0285cbadff92c6b3,
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+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05g2.12q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
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+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.13"),
+					Description:	[]byte("step 2.13"),
+					Extension:	[]byte("}q\x01(U\tx-cookieSU\x05YS9KOU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae04444500,
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+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05d2.13q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.14"),
+					Description:	[]byte("step 2.14"),
+					Extension:	[]byte("}q\x01(U\tx-cookie5U\x05RF8GXU\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae08f5c34c,
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+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05c2.14q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae0da74199,
+					Status:	' ',
+					User:		[]byte("user2.15"),
+					Description:	[]byte("step 2.15"),
+					Extension:	[]byte("}q\x01(U\tx-cookie0U\x05H70PMU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae0da74199,
+						PrevRevPos:	9545,
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+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e2.15q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
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+				Pos:	  10795,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae1258bfe6,
+					Status:	' ',
+					User:		[]byte("user2.16"),
+					Description:	[]byte("step 2.16"),
+					Extension:	[]byte("}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (f)U\tx-cookieOU\x05MJ5PGu."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae1258bfe6,
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+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05f2.16q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+		{
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+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.17"),
+					Description:	[]byte("step 2.17"),
+					Extension:	[]byte("}q\x01(U\tx-cookie1U\x05RAZ4VU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
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+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05b2.17q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11179,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae1bbbbc80,
+					Status:	' ',
+					User:		[]byte("user2.18"),
+					Description:	[]byte("step 2.18"),
+					Extension:	[]byte("}q\x01(U\tx-cookieRU\x05KE39AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11272,
+						Oid:	2,
+						Tid:	0x0285cbae1bbbbc80,
+						PrevRevPos:	10312,
+						TxnPos:	11179,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05d2.18q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11371,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae206d3acc,
+					Status:	' ',
+					User:		[]byte("user2.19"),
+					Description:	[]byte("step 2.19"),
+					Extension:	[]byte("}q\x01(U\tx-cookie8U\x051SBCJU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11464,
+						Oid:	9,
+						Tid:	0x0285cbae206d3acc,
+						PrevRevPos:	10696,
+						TxnPos:	11371,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e2.19q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11563,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae251eb919,
+					Status:	' ',
+					User:		[]byte("user2.20"),
+					Description:	[]byte("step 2.20"),
+					Extension:	[]byte("}q\x01(U\tx-cookieJU\x05EAIKMU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11656,
+						Oid:	8,
+						Tid:	0x0285cbae251eb919,
+						PrevRevPos:	11080,
+						TxnPos:	11563,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05b2.20q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11755,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae29d03766,
+					Status:	' ',
+					User:		[]byte("user2.21"),
+					Description:	[]byte("step 2.21"),
+					Extension:	[]byte("}q\x01(U\tx-cookieMU\x05ESSADU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11848,
+						Oid:	9,
+						Tid:	0x0285cbae29d03766,
+						PrevRevPos:	11464,
+						TxnPos:	11755,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e2.21q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11947,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae2e81b5b3,
+					Status:	' ',
+					User:		[]byte("user2.22"),
+					Description:	[]byte("step 2.22"),
+					Extension:	[]byte("}q\x01(U\tx-cookieHU\x05DL5OCU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12040,
+						Oid:	9,
+						Tid:	0x0285cbae2e81b5b3,
+						PrevRevPos:	11848,
+						TxnPos:	11947,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e2.22q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12139,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae33333400,
+					Status:	' ',
+					User:		[]byte("user2.23"),
+					Description:	[]byte("step 2.23"),
+					Extension:	[]byte("}q\x01(U\tx-cookieQU\x05PBN2AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12232,
+						Oid:	2,
+						Tid:	0x0285cbae33333400,
+						PrevRevPos:	11272,
+						TxnPos:	12139,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05d2.23q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12331,
+				LenPrev:  192,
+				Len:	  192,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae37e4b24c,
+					Status:	' ',
+					User:		[]byte("user2.24"),
+					Description:	[]byte("step 2.24"),
+					Extension:	[]byte("}q\x01(U\tx-cookie2U\x050GV0IU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12424,
+						Oid:	9,
+						Tid:	0x0285cbae37e4b24c,
+						PrevRevPos:	12040,
+						TxnPos:	12331,
+						DataLen:	49,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e2.24q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12523,
+				LenPrev:  192,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae3c963099,
+					Status:	' ',
+					User:		[]byte("root2.0\nYour\nMagesty "),
+					Description:	[]byte("undo 2.0\nmore detailed description\n\nzzz ...\t\t"),
+					Extension:	[]byte("}q\x01(U\tx-cookieMU\x05OQO01U\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrjMzNAA=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12681,
+						Oid:	2,
+						Tid:	0x0285cbae3c963099,
+						PrevRevPos:	12232,
+						TxnPos:	12523,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00,\x08"),
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05d2.18q\x02."),
+					/* copy from */ 0x0285cbae1bbbbc80,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12739,
+				LenPrev:  216,
+				Len:	  217,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4147aee6,
+					Status:	' ',
+					User:		[]byte("root2.1\nYour\nMagesty "),
+					Description:	[]byte("undo 2.1\nmore detailed description\n\nzzz ...\t\t\t"),
+					Extension:	[]byte("}q\x01(U\tx-cookieAU\x05VPQ8RU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrjfkskw=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12898,
+						Oid:	9,
+						Tid:	0x0285cbae4147aee6,
+						PrevRevPos:	12424,
+						TxnPos:	12739,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00/\x08"),
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x05e2.22q\x02."),
+					/* copy from */ 0x0285cbae2e81b5b3,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12956,
+				LenPrev:  217,
+				Len:	  207,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae45f92d33,
+					Status:	' ',
+					User:		[]byte("user"),
+					Description:	[]byte("cyclic reference"),
+					Extension:	[]byte("}q\x01(U\x0bx-generatorq\x02U\x10zodb/py2 (cycle)U\tx-cookieGU\x05B6FWFu."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13056,
+						Oid:	2,
+						Tid:	0x0285cbae45f92d33,
+						PrevRevPos:	12681,
+						TxnPos:	12956,
+						DataLen:	57,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.(U\x08\x00\x00\x00\x00\x00\x00\x00\x02q\x02h\x01tQ."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13163,
+				LenPrev:  207,
+				Len:	  408,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4aaaab80,
+					Status:	' ',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 2"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13197,
+						Oid:	0,
+						Tid:	0x0285cbae4aaaab80,
+						PrevRevPos:	7133,
+						TxnPos:	13163,
+						DataLen:	235,
+					},
+					[]byte("cpersistent.mapping\nPersistentMapping\nq\x01.}q\x02U\x04dataq\x03}q\x04(U\x01a(U\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06tQU\x01c(U\x08\x00\x00\x00\x00\x00\x00\x00\x07q\x07h\x06tQU\x01b(U\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x08h\x06tQU\x01e(U\x08\x00\x00\x00\x00\x00\x00\x00\tq\th\x06tQU\x01d(U\x08\x00\x00\x00\x00\x00\x00\x00\nq\nh\x06tQU\x01g(U\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0bh\x06tQU\x01f(U\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0ch\x06tQus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	13474,
+						Oid:	10,
+						Tid:	0x0285cbae4aaaab80,
+						PrevRevPos:	0,
+						TxnPos:	13163,
+						DataLen:	47,
+					},
+					[]byte("czodbtools.test.gen_testdata\nObject\nq\x01.U\x03d2*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13571,
+				LenPrev:  408,
+				Len:	  246,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4f5c29cc,
+					Status:	' ',
+					User:		[]byte("root2\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
+					Description:	[]byte("delete 2\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
+					Extension:	[]byte("}q\x01(U\tx-cookieTU\x054WFSDU\x0bx-generatorq\x02U\x13zodb/py2 (delete 2)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13759,
+						Oid:	2,
+						Tid:	0x0285cbae4f5c29cc,
+						PrevRevPos:	13056,
+						TxnPos:	13571,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
+					/* deleted */ nil,
+					/* deleted */ 0,
+				},
+			},
+		},
+	}
+
+	ztestdataReg.Register("py2_pickle1", "testdata/py2_pickle1", &_TestDataOK{_1fs_indexTopPos, _1fs_indexEntryv, _1fs_dbEntryv})
+}

go/zodb/storage/fs1/ztestdata_expect_py2_pickle2_test.go

+// Code generated by py/gen-testdata; DO NOT EDIT.
+package fs1
+
+import "lab.nexedi.com/kirr/neo/go/zodb"
+
+func init() {
+	const _1fs_indexTopPos = 14178
+	var _1fs_indexEntryv = []indexEntry{
+		{       0,    13555},
+		{       1,    11185},
+		{       2,    14120},
+		{       3,    10393},
+		{       5,     9020},
+		{       6,     7894},
+		{       7,    10789},
+		{       8,    11977},
+		{       9,    13251},
+		{      10,    13829},
+	}
+
+	var _1fs_dbEntryv = []dbEntry{
+		{
+			TxnHeader{
+				Pos:	  4,
+				LenPrev:  0,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac70a3d733,
+					Status:	'p',
+					User:		[]byte("user0.12"),
+					Description:	[]byte("step 0.12"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie8U\x052MHMUU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	99,
+						Oid:	1,
+						Tid:	0x0285cbac70a3d733,
+						PrevRevPos:	0,
+						TxnPos:	4,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05f0.12q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  202,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac7eb85219,
+					Status:	'p',
+					User:		[]byte("user0.15"),
+					Description:	[]byte("step 0.15"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieYU\x05EDZ10U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	297,
+						Oid:	6,
+						Tid:	0x0285cbac7eb85219,
+						PrevRevPos:	0,
+						TxnPos:	202,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e0.15q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  400,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac917e4b4c,
+					Status:	'p',
+					User:		[]byte("user0.19"),
+					Description:	[]byte("step 0.19"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieFU\x05OUC9LU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	495,
+						Oid:	5,
+						Tid:	0x0285cbac917e4b4c,
+						PrevRevPos:	0,
+						TxnPos:	400,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a0.19q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  598,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac9ae147e6,
+					Status:	'p',
+					User:		[]byte("user0.21"),
+					Description:	[]byte("step 0.21"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie8U\x050QC1AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	693,
+						Oid:	2,
+						Tid:	0x0285cbac9ae147e6,
+						PrevRevPos:	0,
+						TxnPos:	598,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d0.21q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  796,
+				LenPrev:  198,
+				Len:	  261,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacada74119,
+					Status:	'p',
+					User:		[]byte("root0.0\nYour\nMagesty "),
+					Description:	[]byte("undo 0.0\nmore detailed description\n\nzzz ..."),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieKU\x05G95IHU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrKRERIA=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	954,
+						Oid:	7,
+						Tid:	0x0285cbacada74119,
+						PrevRevPos:	0,
+						TxnPos:	796,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05c0.22q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1057,
+				LenPrev:  261,
+				Len:	  262,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacb258bf66,
+					Status:	'p',
+					User:		[]byte("root0.1\nYour\nMagesty "),
+					Description:	[]byte("undo 0.1\nmore detailed description\n\nzzz ...\t"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieVU\x05VHBGTU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrKj1wsw=)u."),
+				},
+			},
+
+			[]txnEntry{
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+						Oid:	3,
+						Tid:	0x0285cbacb258bf66,
+						PrevRevPos:	0,
+						TxnPos:	1057,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g0.11q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
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+				LenPrev:  262,
+				Len:	  409,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	'p',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 4"),
+					Extension:	[]byte(""),
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+			[]txnEntry{
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+						Tid:	0x0285cbacbbbbbc00,
+						PrevRevPos:	0,
+						TxnPos:	1319,
+						DataLen:	232,
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
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+						Tid:	0x0285cbacbbbbbc00,
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x03b0*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
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+				TxnInfo:	zodb.TxnInfo{
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+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieEU\x05VAZ3UU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04e1.0q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+		{
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+					Status:	' ',
+					User:		[]byte("user1.1"),
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04b1.1q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+		{
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+					Status:	' ',
+					User:		[]byte("user1.2"),
+					Description:	[]byte("step 1.2"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieYU\x05A01OKU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04g1.2q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.3"),
+					Description:	[]byte("step 1.3"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04g1.3q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.4"),
+					Description:	[]byte("step 1.4"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieCU\x05J7L05U\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
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+			[]txnEntry{
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+						Tid:	0x0285cbad14e81bb3,
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04c1.4q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+		{
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.5"),
+					Description:	[]byte("step 1.5"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04f1.5q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04d1.6q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+			TxnHeader{
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.7"),
+					Description:	[]byte("step 1.7"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04c1.7q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.8"),
+					Description:	[]byte("step 1.8"),
+					Extension:	[]byte("\x80\x02}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (c)U\tx-cookieWU\x05HPFAQu."),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04c1.8q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				LenPrev:  195,
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
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+					Description:	[]byte("step 1.9"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04e1.9q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				LenPrev:  195,
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.10"),
+					Description:	[]byte("step 1.10"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieOU\x05EIGHLU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.10q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.11"),
+					Description:	[]byte("step 1.11"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05c1.11q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.12"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e1.12q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.13q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.14q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user1.15"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d1.15q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+			[]txnEntry{
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+					/* no copy */ 0,
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+					User:		[]byte("user1.17"),
+					Description:	[]byte("step 1.17"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie8U\x05T23V1U\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	1,
+						Tid:	0x0285cbad51eb8599,
+						PrevRevPos:	2796,
+						TxnPos:	5064,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05f1.17q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5262,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad569d03e6,
+					Status:	' ',
+					User:		[]byte("user1.18"),
+					Description:	[]byte("step 1.18"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieYU\x05UB55NU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
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+			[]txnEntry{
+				{
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+						Tid:	0x0285cbad569d03e6,
+						PrevRevPos:	3773,
+						TxnPos:	5262,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.18q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5460,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad5b4e8233,
+					Status:	' ',
+					User:		[]byte("user1.19"),
+					Description:	[]byte("step 1.19"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieZU\x05IKOSRU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
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+			[]txnEntry{
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+					DataHeader{
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+						Oid:	3,
+						Tid:	0x0285cbad5b4e8233,
+						PrevRevPos:	4961,
+						TxnPos:	5460,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.19q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5658,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad60000080,
+					Status:	' ',
+					User:		[]byte("user1.20"),
+					Description:	[]byte("step 1.20"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieSU\x057JLTHU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
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+			[]txnEntry{
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+						Tid:	0x0285cbad60000080,
+						PrevRevPos:	5555,
+						TxnPos:	5658,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.20q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  5856,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad64b17ecc,
+					Status:	' ',
+					User:		[]byte("user1.21"),
+					Description:	[]byte("step 1.21"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieIU\x05USN06U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
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+						Tid:	0x0285cbad64b17ecc,
+						PrevRevPos:	4169,
+						TxnPos:	5856,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e1.21q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6054,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad6962fd19,
+					Status:	' ',
+					User:		[]byte("user1.22"),
+					Description:	[]byte("step 1.22"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie2U\x05UXAETU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
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+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	5,
+						Tid:	0x0285cbad6962fd19,
+						PrevRevPos:	5357,
+						TxnPos:	6054,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.22q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6252,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad6e147b66,
+					Status:	' ',
+					User:		[]byte("user1.23"),
+					Description:	[]byte("step 1.23"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieHU\x05AT11FU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	5,
+						Tid:	0x0285cbad6e147b66,
+						PrevRevPos:	6149,
+						TxnPos:	6252,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.23q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6450,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad72c5f9b3,
+					Status:	' ',
+					User:		[]byte("user1.24"),
+					Description:	[]byte("step 1.24"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieDU\x05O5ZEMU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
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+			[]txnEntry{
+				{
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+						Oid:	1,
+						Tid:	0x0285cbad72c5f9b3,
+						PrevRevPos:	5159,
+						TxnPos:	6450,
+						DataLen:	53,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05f1.24q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6648,
+				LenPrev:  198,
+				Len:	  217,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad77777800,
+					Status:	' ',
+					User:		[]byte("root1.0\nYour\nMagesty "),
+					Description:	[]byte("undo 1.0\nmore detailed description\n\nzzz ...\t"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie3U\x05G51MMU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrW4Ue2Y=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	6807,
+						Oid:	5,
+						Tid:	0x0285cbad77777800,
+						PrevRevPos:	6347,
+						TxnPos:	6648,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x18\x05"),
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.22q\x02."),
+					/* copy from */ 0x0285cbad6962fd19,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6865,
+				LenPrev:  217,
+				Len:	  218,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad7c28f64c,
+					Status:	' ',
+					User:		[]byte("root1.1\nYour\nMagesty "),
+					Description:	[]byte("undo 1.1\nmore detailed description\n\nzzz ...\t\t"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieLU\x05CDRHVU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrXLF+bM=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	7025,
+						Oid:	1,
+						Tid:	0x0285cbad7c28f64c,
+						PrevRevPos:	6545,
+						TxnPos:	6865,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x14'"),
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05f1.17q\x02."),
+					/* copy from */ 0x0285cbad51eb8599,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  7083,
+				LenPrev:  218,
+				Len:	  212,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad80da7499,
+					Status:	' ',
+					User:		[]byte("user"),
+					Description:	[]byte("cyclic reference"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie4U\x05C4OMSU\x0bx-generatorq\x02U\x10zodb/py2 (cycle)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	7185,
+						Oid:	6,
+						Tid:	0x0285cbad80da7499,
+						PrevRevPos:	5951,
+						TxnPos:	7083,
+						DataLen:	60,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x08\x00\x00\x00\x00\x00\x00\x00\x06q\x02h\x01\x86Q."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  7295,
+				LenPrev:  212,
+				Len:	  409,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad858bf2e6,
+					Status:	' ',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 6"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	7329,
+						Oid:	0,
+						Tid:	0x0285cbad858bf2e6,
+						PrevRevPos:	1353,
+						TxnPos:	7295,
+						DataLen:	232,
+					},
+					[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01aU\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01cU\x08\x00\x00\x00\x00\x00\x00\x00\x07q\x07h\x06\x86QU\x01bU\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x08h\x06\x86QU\x01eU\x08\x00\x00\x00\x00\x00\x00\x00\tq\th\x06\x86QU\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\nh\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0bh\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0ch\x06\x86Qus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	7603,
+						Oid:	9,
+						Tid:	0x0285cbad858bf2e6,
+						PrevRevPos:	0,
+						TxnPos:	7295,
+						DataLen:	51,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x03e1*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  7704,
+				LenPrev:  409,
+				Len:	  248,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad8a3d7133,
+					Status:	' ',
+					User:		[]byte("root1\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
+					Description:	[]byte("delete 1\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieSU\x05XVOTIU\x0bx-generatorq\x02U\x13zodb/py2 (delete 6)u."),
+				},
+			},
+
+			[]txnEntry{
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+						Tid:	0x0285cbad8a3d7133,
+						PrevRevPos:	7185,
+						TxnPos:	7704,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
+					/* deleted */ nil,
+					/* deleted */ 0,
+				},
+			},
+		},
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+			TxnHeader{
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+				LenPrev:  248,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadc740db19,
+					Status:	' ',
+					User:		[]byte("user2.0"),
+					Description:	[]byte("step 2.0"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie1U\x05GRGS2U\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
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+			[]txnEntry{
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+						Oid:	1,
+						Tid:	0x0285cbadc740db19,
+						PrevRevPos:	7025,
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+						DataLen:	52,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04f2.0q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  8147,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadcbf25966,
+					Status:	' ',
+					User:		[]byte("user2.1"),
+					Description:	[]byte("step 2.1"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie3U\x05WYNK7U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
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+			[]txnEntry{
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+					DataHeader{
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+						Oid:	2,
+						Tid:	0x0285cbadcbf25966,
+						PrevRevPos:	4763,
+						TxnPos:	8147,
+						DataLen:	52,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04d2.1q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  8342,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadd0a3d7b3,
+					Status:	' ',
+					User:		[]byte("user2.2"),
+					Description:	[]byte("step 2.2"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieFU\x05SPFA4U\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
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+			[]txnEntry{
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+						Oid:	3,
+						Tid:	0x0285cbadd0a3d7b3,
+						PrevRevPos:	5753,
+						TxnPos:	8342,
+						DataLen:	52,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04g2.2q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  8537,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadd5555600,
+					Status:	' ',
+					User:		[]byte("user2.3"),
+					Description:	[]byte("step 2.3"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie1U\x05XE3RQU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	3,
+						Tid:	0x0285cbadd5555600,
+						PrevRevPos:	8435,
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+						DataLen:	52,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04g2.3q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  8732,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadda06d44c,
+					Status:	' ',
+					User:		[]byte("user2.4"),
+					Description:	[]byte("step 2.4"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie2U\x051XYQ2U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
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+			[]txnEntry{
+				{
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+						Oid:	9,
+						Tid:	0x0285cbadda06d44c,
+						PrevRevPos:	7603,
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+						DataLen:	52,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04e2.4q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  8927,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbaddeb85299,
+					Status:	' ',
+					User:		[]byte("user2.5"),
+					Description:	[]byte("step 2.5"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieWU\x05C0ZT2U\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbaddeb85299,
+						PrevRevPos:	6807,
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04a2.5q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
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+				Len:	  195,
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04b2.6q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+		{
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+					Description:	[]byte("step 2.7"),
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04g2.7q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
+					User:		[]byte("user2.8"),
+					Description:	[]byte("step 2.8"),
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04d2.8q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
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+					Status:	' ',
+					User:		[]byte("user2.9"),
+					Description:	[]byte("step 2.9"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie8U\x055WYSBU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04e2.9q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
+					User:		[]byte("user2.10"),
+					Description:	[]byte("step 2.10"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05c2.10q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
+					User:		[]byte("user2.11"),
+					Description:	[]byte("step 2.11"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieGU\x05Q5FM3U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d2.11q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
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+					Description:	[]byte("step 2.12"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie7U\x052EFQBU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g2.12q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
+					User:		[]byte("user2.13"),
+					Description:	[]byte("step 2.13"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d2.13q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05c2.14q\x02."),
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+					/* no copy */ 0,
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+					Status:	' ',
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+					Description:	[]byte("step 2.15"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie0U\x05H70PMU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e2.15q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.16"),
+					Description:	[]byte("step 2.16"),
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+			[]txnEntry{
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05f2.16q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
+					User:		[]byte("user2.17"),
+					Description:	[]byte("step 2.17"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie1U\x05RAZ4VU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05b2.17q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.18"),
+					Description:	[]byte("step 2.18"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieRU\x05KE39AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d2.18q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e2.19q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05b2.20q\x02."),
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+					/* no copy */ 0,
+				},
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e2.21q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e2.22q\x02."),
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+					/* no copy */ 0,
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d2.23q\x02."),
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+					/* no copy */ 0,
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+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e2.24q\x02."),
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+				Len:	  218,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae3c963099,
+					Status:	' ',
+					User:		[]byte("root2.0\nYour\nMagesty "),
+					Description:	[]byte("undo 2.0\nmore detailed description\n\nzzz ...\t\t"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieMU\x05OQO01U\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrjMzNAA=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13032,
+						Oid:	2,
+						Tid:	0x0285cbae3c963099,
+						PrevRevPos:	12571,
+						TxnPos:	12872,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00-="),
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d2.18q\x02."),
+					/* copy from */ 0x0285cbae1bbbbc80,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13090,
+				LenPrev:  218,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4147aee6,
+					Status:	' ',
+					User:		[]byte("root2.1\nYour\nMagesty "),
+					Description:	[]byte("undo 2.1\nmore detailed description\n\nzzz ...\t\t\t"),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieAU\x05VPQ8RU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrjfkskw=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13251,
+						Oid:	9,
+						Tid:	0x0285cbae4147aee6,
+						PrevRevPos:	12769,
+						TxnPos:	13090,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x000U"),
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e2.22q\x02."),
+					/* copy from */ 0x0285cbae2e81b5b3,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13309,
+				LenPrev:  219,
+				Len:	  212,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae45f92d33,
+					Status:	' ',
+					User:		[]byte("user"),
+					Description:	[]byte("cyclic reference"),
+					Extension:	[]byte("\x80\x02}q\x01(U\x0bx-generatorq\x02U\x10zodb/py2 (cycle)U\tx-cookieGU\x05B6FWFu."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13411,
+						Oid:	2,
+						Tid:	0x0285cbae45f92d33,
+						PrevRevPos:	13032,
+						TxnPos:	13309,
+						DataLen:	60,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x08\x00\x00\x00\x00\x00\x00\x00\x02q\x02h\x01\x86Q."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13521,
+				LenPrev:  212,
+				Len:	  409,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4aaaab80,
+					Status:	' ',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 2"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13555,
+						Oid:	0,
+						Tid:	0x0285cbae4aaaab80,
+						PrevRevPos:	7329,
+						TxnPos:	13521,
+						DataLen:	232,
+					},
+					[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01aU\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01cU\x08\x00\x00\x00\x00\x00\x00\x00\x07q\x07h\x06\x86QU\x01bU\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x08h\x06\x86QU\x01eU\x08\x00\x00\x00\x00\x00\x00\x00\tq\th\x06\x86QU\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\nq\nh\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0bh\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0ch\x06\x86Qus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	13829,
+						Oid:	10,
+						Tid:	0x0285cbae4aaaab80,
+						PrevRevPos:	0,
+						TxnPos:	13521,
+						DataLen:	51,
+					},
+					[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x03d2*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13930,
+				LenPrev:  409,
+				Len:	  248,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4f5c29cc,
+					Status:	' ',
+					User:		[]byte("root2\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
+					Description:	[]byte("delete 2\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
+					Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieTU\x054WFSDU\x0bx-generatorq\x02U\x13zodb/py2 (delete 2)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	14120,
+						Oid:	2,
+						Tid:	0x0285cbae4f5c29cc,
+						PrevRevPos:	13411,
+						TxnPos:	13930,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
+					/* deleted */ nil,
+					/* deleted */ 0,
+				},
+			},
+		},
+	}
+
+	ztestdataReg.Register("py2_pickle2", "testdata/py2_pickle2", &_TestDataOK{_1fs_indexTopPos, _1fs_indexEntryv, _1fs_dbEntryv})
+}

go/zodb/storage/fs1/ztestdata_expect_py2_pickle3_test.go

+// Code generated by py/gen-testdata; DO NOT EDIT.
+package fs1
+
+import "lab.nexedi.com/kirr/neo/go/zodb"
+
+func init() {
+	const _1fs_indexTopPos = 14132
+	var _1fs_indexEntryv = []indexEntry{
+		{       0,    13523},
+		{       1,    11155},
+		{       2,    14074},
+		{       3,    10363},
+		{       5,     8990},
+		{       6,     7864},
+		{       7,    10759},
+		{       8,    11947},
+		{       9,    13221},
+		{      10,    13783},
+	}
+
+	var _1fs_dbEntryv = []dbEntry{
+		{
+			TxnHeader{
+				Pos:	  4,
+				LenPrev:  0,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac70a3d733,
+					Status:	'p',
+					User:		[]byte("user0.12"),
+					Description:	[]byte("step 0.12"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie8U\x052MHMUU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	99,
+						Oid:	1,
+						Tid:	0x0285cbac70a3d733,
+						PrevRevPos:	0,
+						TxnPos:	4,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05f0.12q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  202,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac7eb85219,
+					Status:	'p',
+					User:		[]byte("user0.15"),
+					Description:	[]byte("step 0.15"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieYU\x05EDZ10U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	297,
+						Oid:	6,
+						Tid:	0x0285cbac7eb85219,
+						PrevRevPos:	0,
+						TxnPos:	202,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05e0.15q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  400,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac917e4b4c,
+					Status:	'p',
+					User:		[]byte("user0.19"),
+					Description:	[]byte("step 0.19"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieFU\x05OUC9LU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	495,
+						Oid:	5,
+						Tid:	0x0285cbac917e4b4c,
+						PrevRevPos:	0,
+						TxnPos:	400,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05a0.19q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  598,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac9ae147e6,
+					Status:	'p',
+					User:		[]byte("user0.21"),
+					Description:	[]byte("step 0.21"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie8U\x050QC1AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	693,
+						Oid:	2,
+						Tid:	0x0285cbac9ae147e6,
+						PrevRevPos:	0,
+						TxnPos:	598,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05d0.21q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  796,
+				LenPrev:  198,
+				Len:	  261,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacada74119,
+					Status:	'p',
+					User:		[]byte("root0.0\nYour\nMagesty "),
+					Description:	[]byte("undo 0.0\nmore detailed description\n\nzzz ..."),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieKU\x05G95IHU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrKRERIA=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	954,
+						Oid:	7,
+						Tid:	0x0285cbacada74119,
+						PrevRevPos:	0,
+						TxnPos:	796,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05c0.22q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1057,
+				LenPrev:  261,
+				Len:	  262,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacb258bf66,
+					Status:	'p',
+					User:		[]byte("root0.1\nYour\nMagesty "),
+					Description:	[]byte("undo 0.1\nmore detailed description\n\nzzz ...\t"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieVU\x05VHBGTU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrKj1wsw=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1216,
+						Oid:	3,
+						Tid:	0x0285cbacb258bf66,
+						PrevRevPos:	0,
+						TxnPos:	1057,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05g0.11q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1319,
+				LenPrev:  262,
+				Len:	  395,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacbbbbbc00,
+					Status:	'p',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 4"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1353,
+						Oid:	0,
+						Tid:	0x0285cbacbbbbbc00,
+						PrevRevPos:	0,
+						TxnPos:	1319,
+						DataLen:	218,
+					},
+					[]byte("\x80\x03cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x03}q\x02U\x04dataq\x03}q\x04(U\x01aC\x08\x00\x00\x00\x00\x00\x00\x00\x05czodbtools.test.gen_testdata\nObject\nq\x05\x86QU\x01cC\x08\x00\x00\x00\x00\x00\x00\x00\x07h\x05\x86QU\x01bC\x08\x00\x00\x00\x00\x00\x00\x00\x08h\x05\x86QU\x01eC\x08\x00\x00\x00\x00\x00\x00\x00\x06h\x05\x86QU\x01dC\x08\x00\x00\x00\x00\x00\x00\x00\x02h\x05\x86QU\x01gC\x08\x00\x00\x00\x00\x00\x00\x00\x03h\x05\x86QU\x01fC\x08\x00\x00\x00\x00\x00\x00\x00\x01h\x05\x86Qus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	1613,
+						Oid:	8,
+						Tid:	0x0285cbacbbbbbc00,
+						PrevRevPos:	0,
+						TxnPos:	1319,
+						DataLen:	51,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x03b0*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1714,
+				LenPrev:  395,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad02222280,
+					Status:	' ',
+					User:		[]byte("user1.0"),
+					Description:	[]byte("step 1.0"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieEU\x05VAZ3UU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1807,
+						Oid:	6,
+						Tid:	0x0285cbad02222280,
+						PrevRevPos:	297,
+						TxnPos:	1714,
+						DataLen:	52,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04e1.0q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1909,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad06d3a0cc,
+					Status:	' ',
+					User:		[]byte("user1.1"),
+					Description:	[]byte("step 1.1"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieNU\x05GSV4IU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2002,
+						Oid:	8,
+						Tid:	0x0285cbad06d3a0cc,
+						PrevRevPos:	1613,
+						TxnPos:	1909,
+						DataLen:	52,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04b1.1q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2104,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad0b851f19,
+					Status:	' ',
+					User:		[]byte("user1.2"),
+					Description:	[]byte("step 1.2"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieYU\x05A01OKU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2197,
+						Oid:	3,
+						Tid:	0x0285cbad0b851f19,
+						PrevRevPos:	1216,
+						TxnPos:	2104,
+						DataLen:	52,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04g1.2q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2299,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad10369d66,
+					Status:	' ',
+					User:		[]byte("user1.3"),
+					Description:	[]byte("step 1.3"),
+					Extension:	[]byte("\x80\x03}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (g)U\tx-cookieWU\x051QPNPu."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2392,
+						Oid:	3,
+						Tid:	0x0285cbad10369d66,
+						PrevRevPos:	2197,
+						TxnPos:	2299,
+						DataLen:	52,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04g1.3q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2494,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad14e81bb3,
+					Status:	' ',
+					User:		[]byte("user1.4"),
+					Description:	[]byte("step 1.4"),
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04c1.4q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+		{
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04f1.5q\x02."),
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+					/* no copy */ 0,
+				},
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04d1.6q\x02."),
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+					/* no copy */ 0,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04c1.7q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04c1.8q\x02."),
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+					/* no copy */ 0,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04e1.9q\x02."),
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+					/* no copy */ 0,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05a1.10q\x02."),
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+					/* no copy */ 0,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05c1.11q\x02."),
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+					/* no copy */ 0,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05e1.12q\x02."),
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+					/* no copy */ 0,
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+					/* no copy */ 0,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05g1.14q\x02."),
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+					/* no copy */ 0,
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+					Status:	' ',
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05d1.15q\x02."),
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+					/* no copy */ 0,
+				},
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+					Status:	' ',
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05g1.16q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					Status:	' ',
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05f1.17q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05a1.18q\x02."),
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05g1.19q\x02."),
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05g1.20q\x02."),
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+					Tid:	0x0285cbad72c5f9b3,
+					Status:	' ',
+					User:		[]byte("user1.24"),
+					Description:	[]byte("step 1.24"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieDU\x05O5ZEMU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
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+						Oid:	1,
+						Tid:	0x0285cbad72c5f9b3,
+						PrevRevPos:	5145,
+						TxnPos:	6436,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05f1.24q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6634,
+				LenPrev:  198,
+				Len:	  217,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad77777800,
+					Status:	' ',
+					User:		[]byte("root1.0\nYour\nMagesty "),
+					Description:	[]byte("undo 1.0\nmore detailed description\n\nzzz ...\t"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie3U\x05G51MMU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrW4Ue2Y=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	5,
+						Tid:	0x0285cbad77777800,
+						PrevRevPos:	6333,
+						TxnPos:	6634,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x17\xf7"),
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05a1.22q\x02."),
+					/* copy from */ 0x0285cbad6962fd19,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  6851,
+				LenPrev:  217,
+				Len:	  218,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad7c28f64c,
+					Status:	' ',
+					User:		[]byte("root1.1\nYour\nMagesty "),
+					Description:	[]byte("undo 1.1\nmore detailed description\n\nzzz ...\t\t"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieLU\x05CDRHVU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrXLF+bM=)u."),
+				},
+			},
+
+			[]txnEntry{
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+					DataHeader{
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+						Oid:	1,
+						Tid:	0x0285cbad7c28f64c,
+						PrevRevPos:	6531,
+						TxnPos:	6851,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x14\x19"),
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05f1.17q\x02."),
+					/* copy from */ 0x0285cbad51eb8599,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  218,
+				Len:	  210,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad80da7499,
+					Status:	' ',
+					User:		[]byte("user"),
+					Description:	[]byte("cyclic reference"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie4U\x05C4OMSU\x0bx-generatorq\x02U\x10zodb/py2 (cycle)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
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+						Oid:	6,
+						Tid:	0x0285cbad80da7499,
+						PrevRevPos:	5937,
+						TxnPos:	7069,
+						DataLen:	58,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03C\x08\x00\x00\x00\x00\x00\x00\x00\x06h\x01\x86Q."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  7279,
+				LenPrev:  210,
+				Len:	  395,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad858bf2e6,
+					Status:	' ',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 6"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	7313,
+						Oid:	0,
+						Tid:	0x0285cbad858bf2e6,
+						PrevRevPos:	1353,
+						TxnPos:	7279,
+						DataLen:	218,
+					},
+					[]byte("\x80\x03cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x03}q\x02U\x04dataq\x03}q\x04(U\x01aC\x08\x00\x00\x00\x00\x00\x00\x00\x05czodbtools.test.gen_testdata\nObject\nq\x05\x86QU\x01cC\x08\x00\x00\x00\x00\x00\x00\x00\x07h\x05\x86QU\x01bC\x08\x00\x00\x00\x00\x00\x00\x00\x08h\x05\x86QU\x01eC\x08\x00\x00\x00\x00\x00\x00\x00\th\x05\x86QU\x01dC\x08\x00\x00\x00\x00\x00\x00\x00\x02h\x05\x86QU\x01gC\x08\x00\x00\x00\x00\x00\x00\x00\x03h\x05\x86QU\x01fC\x08\x00\x00\x00\x00\x00\x00\x00\x01h\x05\x86Qus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	7573,
+						Oid:	9,
+						Tid:	0x0285cbad858bf2e6,
+						PrevRevPos:	0,
+						TxnPos:	7279,
+						DataLen:	51,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x03e1*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  7674,
+				LenPrev:  395,
+				Len:	  248,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad8a3d7133,
+					Status:	' ',
+					User:		[]byte("root1\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
+					Description:	[]byte("delete 1\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieSU\x05XVOTIU\x0bx-generatorq\x02U\x13zodb/py2 (delete 6)u."),
+				},
+			},
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+			[]txnEntry{
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+					DataHeader{
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+						Tid:	0x0285cbad8a3d7133,
+						PrevRevPos:	7171,
+						TxnPos:	7674,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
+					/* deleted */ nil,
+					/* deleted */ 0,
+				},
+			},
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+		{
+			TxnHeader{
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+				LenPrev:  248,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadc740db19,
+					Status:	' ',
+					User:		[]byte("user2.0"),
+					Description:	[]byte("step 2.0"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie1U\x05GRGS2U\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
+				},
+			},
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+			[]txnEntry{
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+						Tid:	0x0285cbadc740db19,
+						PrevRevPos:	7011,
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+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04f2.0q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadcbf25966,
+					Status:	' ',
+					User:		[]byte("user2.1"),
+					Description:	[]byte("step 2.1"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie3U\x05WYNK7U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadcbf25966,
+						PrevRevPos:	4749,
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+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04d2.1q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  8312,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadd0a3d7b3,
+					Status:	' ',
+					User:		[]byte("user2.2"),
+					Description:	[]byte("step 2.2"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieFU\x05SPFA4U\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
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+			[]txnEntry{
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+					DataHeader{
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+						Tid:	0x0285cbadd0a3d7b3,
+						PrevRevPos:	5739,
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+						DataLen:	52,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04g2.2q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadd5555600,
+					Status:	' ',
+					User:		[]byte("user2.3"),
+					Description:	[]byte("step 2.3"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie1U\x05XE3RQU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
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+			[]txnEntry{
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+						Tid:	0x0285cbadd5555600,
+						PrevRevPos:	8405,
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+						DataLen:	52,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04g2.3q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  8702,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadda06d44c,
+					Status:	' ',
+					User:		[]byte("user2.4"),
+					Description:	[]byte("step 2.4"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie2U\x051XYQ2U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
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+			[]txnEntry{
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+						Tid:	0x0285cbadda06d44c,
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+						DataLen:	52,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04e2.4q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  8897,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbaddeb85299,
+					Status:	' ',
+					User:		[]byte("user2.5"),
+					Description:	[]byte("step 2.5"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieWU\x05C0ZT2U\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbaddeb85299,
+						PrevRevPos:	6793,
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+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04a2.5q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
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+				Pos:	  9092,
+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbade369d0e6,
+					Status:	' ',
+					User:		[]byte("user2.6"),
+					Description:	[]byte("step 2.6"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie0U\x05OX40DU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbade369d0e6,
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+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04b2.6q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+				LenPrev:  195,
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbade81b4f33,
+					Status:	' ',
+					User:		[]byte("user2.7"),
+					Description:	[]byte("step 2.7"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieYU\x0564CY4U\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbade81b4f33,
+						PrevRevPos:	8600,
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+						DataLen:	52,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04g2.7q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+				LenPrev:  195,
+				Len:	  195,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.8"),
+					Description:	[]byte("step 2.8"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieZU\x05AXYM6U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadeccccd80,
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+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04d2.8q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadf17e4bcc,
+					Status:	' ',
+					User:		[]byte("user2.9"),
+					Description:	[]byte("step 2.9"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie8U\x055WYSBU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadf17e4bcc,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x04e2.9q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.10"),
+					Description:	[]byte("step 2.10"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie2U\x05F1402U\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadf62fca19,
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+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05c2.10q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
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+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.11"),
+					Description:	[]byte("step 2.11"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieGU\x05Q5FM3U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
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+			[]txnEntry{
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05d2.11q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.12"),
+					Description:	[]byte("step 2.12"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie7U\x052EFQBU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	10363,
+						Oid:	3,
+						Tid:	0x0285cbadff92c6b3,
+						PrevRevPos:	9380,
+						TxnPos:	10268,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05g2.12q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  10466,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae04444500,
+					Status:	' ',
+					User:		[]byte("user2.13"),
+					Description:	[]byte("step 2.13"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieSU\x05YS9KOU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	10561,
+						Oid:	2,
+						Tid:	0x0285cbae04444500,
+						PrevRevPos:	10165,
+						TxnPos:	10466,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05d2.13q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  10664,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae08f5c34c,
+					Status:	' ',
+					User:		[]byte("user2.14"),
+					Description:	[]byte("step 2.14"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie5U\x05RF8GXU\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	10759,
+						Oid:	7,
+						Tid:	0x0285cbae08f5c34c,
+						PrevRevPos:	9967,
+						TxnPos:	10664,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05c2.14q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  10862,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae0da74199,
+					Status:	' ',
+					User:		[]byte("user2.15"),
+					Description:	[]byte("step 2.15"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie0U\x05H70PMU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	10957,
+						Oid:	9,
+						Tid:	0x0285cbae0da74199,
+						PrevRevPos:	9770,
+						TxnPos:	10862,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05e2.15q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11060,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae1258bfe6,
+					Status:	' ',
+					User:		[]byte("user2.16"),
+					Description:	[]byte("step 2.16"),
+					Extension:	[]byte("\x80\x03}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (f)U\tx-cookieOU\x05MJ5PGu."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11155,
+						Oid:	1,
+						Tid:	0x0285cbae1258bfe6,
+						PrevRevPos:	8015,
+						TxnPos:	11060,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05f2.16q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11258,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae170a3e33,
+					Status:	' ',
+					User:		[]byte("user2.17"),
+					Description:	[]byte("step 2.17"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie1U\x05RAZ4VU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11353,
+						Oid:	8,
+						Tid:	0x0285cbae170a3e33,
+						PrevRevPos:	9185,
+						TxnPos:	11258,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05b2.17q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11456,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae1bbbbc80,
+					Status:	' ',
+					User:		[]byte("user2.18"),
+					Description:	[]byte("step 2.18"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieRU\x05KE39AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11551,
+						Oid:	2,
+						Tid:	0x0285cbae1bbbbc80,
+						PrevRevPos:	10561,
+						TxnPos:	11456,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05d2.18q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11654,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae206d3acc,
+					Status:	' ',
+					User:		[]byte("user2.19"),
+					Description:	[]byte("step 2.19"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie8U\x051SBCJU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11749,
+						Oid:	9,
+						Tid:	0x0285cbae206d3acc,
+						PrevRevPos:	10957,
+						TxnPos:	11654,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05e2.19q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  11852,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae251eb919,
+					Status:	' ',
+					User:		[]byte("user2.20"),
+					Description:	[]byte("step 2.20"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieJU\x05EAIKMU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	11947,
+						Oid:	8,
+						Tid:	0x0285cbae251eb919,
+						PrevRevPos:	11353,
+						TxnPos:	11852,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05b2.20q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12050,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae29d03766,
+					Status:	' ',
+					User:		[]byte("user2.21"),
+					Description:	[]byte("step 2.21"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieMU\x05ESSADU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12145,
+						Oid:	9,
+						Tid:	0x0285cbae29d03766,
+						PrevRevPos:	11749,
+						TxnPos:	12050,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05e2.21q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12248,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae2e81b5b3,
+					Status:	' ',
+					User:		[]byte("user2.22"),
+					Description:	[]byte("step 2.22"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieHU\x05DL5OCU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12343,
+						Oid:	9,
+						Tid:	0x0285cbae2e81b5b3,
+						PrevRevPos:	12145,
+						TxnPos:	12248,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05e2.22q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12446,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae33333400,
+					Status:	' ',
+					User:		[]byte("user2.23"),
+					Description:	[]byte("step 2.23"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieQU\x05PBN2AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12541,
+						Oid:	2,
+						Tid:	0x0285cbae33333400,
+						PrevRevPos:	11551,
+						TxnPos:	12446,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05d2.23q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12644,
+				LenPrev:  198,
+				Len:	  198,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae37e4b24c,
+					Status:	' ',
+					User:		[]byte("user2.24"),
+					Description:	[]byte("step 2.24"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookie2U\x050GV0IU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	12739,
+						Oid:	9,
+						Tid:	0x0285cbae37e4b24c,
+						PrevRevPos:	12343,
+						TxnPos:	12644,
+						DataLen:	53,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05e2.24q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  12842,
+				LenPrev:  198,
+				Len:	  218,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae3c963099,
+					Status:	' ',
+					User:		[]byte("root2.0\nYour\nMagesty "),
+					Description:	[]byte("undo 2.0\nmore detailed description\n\nzzz ...\t\t"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieMU\x05OQO01U\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrjMzNAA=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13002,
+						Oid:	2,
+						Tid:	0x0285cbae3c963099,
+						PrevRevPos:	12541,
+						TxnPos:	12842,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00-\x1f"),
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05d2.18q\x02."),
+					/* copy from */ 0x0285cbae1bbbbc80,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13060,
+				LenPrev:  218,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4147aee6,
+					Status:	' ',
+					User:		[]byte("root2.1\nYour\nMagesty "),
+					Description:	[]byte("undo 2.1\nmore detailed description\n\nzzz ...\t\t\t"),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieAU\x05VPQ8RU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrjfkskw=)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13221,
+						Oid:	9,
+						Tid:	0x0285cbae4147aee6,
+						PrevRevPos:	12739,
+						TxnPos:	13060,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x0007"),
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x05e2.22q\x02."),
+					/* copy from */ 0x0285cbae2e81b5b3,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13279,
+				LenPrev:  219,
+				Len:	  210,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae45f92d33,
+					Status:	' ',
+					User:		[]byte("user"),
+					Description:	[]byte("cyclic reference"),
+					Extension:	[]byte("\x80\x03}q\x01(U\x0bx-generatorq\x02U\x10zodb/py2 (cycle)U\tx-cookieGU\x05B6FWFu."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13381,
+						Oid:	2,
+						Tid:	0x0285cbae45f92d33,
+						PrevRevPos:	13002,
+						TxnPos:	13279,
+						DataLen:	58,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03C\x08\x00\x00\x00\x00\x00\x00\x00\x02h\x01\x86Q."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13489,
+				LenPrev:  210,
+				Len:	  395,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4aaaab80,
+					Status:	' ',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 2"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	13523,
+						Oid:	0,
+						Tid:	0x0285cbae4aaaab80,
+						PrevRevPos:	7313,
+						TxnPos:	13489,
+						DataLen:	218,
+					},
+					[]byte("\x80\x03cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x03}q\x02U\x04dataq\x03}q\x04(U\x01aC\x08\x00\x00\x00\x00\x00\x00\x00\x05czodbtools.test.gen_testdata\nObject\nq\x05\x86QU\x01cC\x08\x00\x00\x00\x00\x00\x00\x00\x07h\x05\x86QU\x01bC\x08\x00\x00\x00\x00\x00\x00\x00\x08h\x05\x86QU\x01eC\x08\x00\x00\x00\x00\x00\x00\x00\th\x05\x86QU\x01dC\x08\x00\x00\x00\x00\x00\x00\x00\nh\x05\x86QU\x01gC\x08\x00\x00\x00\x00\x00\x00\x00\x03h\x05\x86QU\x01fC\x08\x00\x00\x00\x00\x00\x00\x00\x01h\x05\x86Qus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	13783,
+						Oid:	10,
+						Tid:	0x0285cbae4aaaab80,
+						PrevRevPos:	0,
+						TxnPos:	13489,
+						DataLen:	51,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x03U\x03d2*q\x02."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  13884,
+				LenPrev:  395,
+				Len:	  248,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4f5c29cc,
+					Status:	' ',
+					User:		[]byte("root2\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
+					Description:	[]byte("delete 2\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
+					Extension:	[]byte("\x80\x03}q\x01(U\tx-cookieTU\x054WFSDU\x0bx-generatorq\x02U\x13zodb/py2 (delete 2)u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	14074,
+						Oid:	2,
+						Tid:	0x0285cbae4f5c29cc,
+						PrevRevPos:	13381,
+						TxnPos:	13884,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
+					/* deleted */ nil,
+					/* deleted */ 0,
+				},
+			},
+		},
+	}
+
+	ztestdataReg.Register("py2_pickle3", "testdata/py2_pickle3", &_TestDataOK{_1fs_indexTopPos, _1fs_indexEntryv, _1fs_dbEntryv})
+}

go/zodb/storage/fs1/ztestdata_expect_py3_pickle3_test.go

+// Code generated by py/gen-testdata; DO NOT EDIT.
+package fs1
+
+import "lab.nexedi.com/kirr/neo/go/zodb"
+
+func init() {
+	const _1fs_indexTopPos = 15685
+	var _1fs_indexEntryv = []indexEntry{
+		{       0,    14989},
+		{       1,    12386},
+		{       2,    15627},
+		{       3,    11510},
+		{       5,     9990},
+		{       6,     8741},
+		{       7,    11948},
+		{       8,    13262},
+		{       9,    14665},
+		{      10,    15315},
+	}
+
+	var _1fs_dbEntryv = []dbEntry{
+		{
+			TxnHeader{
+				Pos:	  4,
+				LenPrev:  0,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac70a3d733,
+					Status:	'p',
+					User:		[]byte("user0.12"),
+					Description:	[]byte("step 0.12"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie8q\x01X\x05\x00\x00\x002MHMUq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (f)q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	117,
+						Oid:	1,
+						Tid:	0x0285cbac70a3d733,
+						PrevRevPos:	0,
+						TxnPos:	4,
+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00f0.12q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  223,
+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac7eb85219,
+					Status:	'p',
+					User:		[]byte("user0.15"),
+					Description:	[]byte("step 0.15"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (e)q\x02X\t\x00\x00\x00x-cookieYq\x03X\x05\x00\x00\x00EDZ10q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	336,
+						Oid:	6,
+						Tid:	0x0285cbac7eb85219,
+						PrevRevPos:	0,
+						TxnPos:	223,
+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00e0.15q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  442,
+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac917e4b4c,
+					Status:	'p',
+					User:		[]byte("user0.19"),
+					Description:	[]byte("step 0.19"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (a)q\x02X\t\x00\x00\x00x-cookieFq\x03X\x05\x00\x00\x00OUC9Lq\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	555,
+						Oid:	5,
+						Tid:	0x0285cbac917e4b4c,
+						PrevRevPos:	0,
+						TxnPos:	442,
+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00a0.19q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  661,
+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbac9ae147e6,
+					Status:	'p',
+					User:		[]byte("user0.21"),
+					Description:	[]byte("step 0.21"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie8q\x01X\x05\x00\x00\x000QC1Aq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (d)q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	774,
+						Oid:	2,
+						Tid:	0x0285cbac9ae147e6,
+						PrevRevPos:	0,
+						TxnPos:	661,
+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00d0.21q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  880,
+				LenPrev:  219,
+				Len:	  285,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacada74119,
+					Status:	'p',
+					User:		[]byte("root0.0\nYour\nMagesty "),
+					Description:	[]byte("undo 0.0\nmore detailed description\n\nzzz ..."),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieKq\x01X\x05\x00\x00\x00G95IHq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x1f\x00\x00\x00zodb/py3 (undo b'AoXLrKRERIA=')q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1059,
+						Oid:	7,
+						Tid:	0x0285cbacada74119,
+						PrevRevPos:	0,
+						TxnPos:	880,
+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00c0.22q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1165,
+				LenPrev:  285,
+				Len:	  286,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacb258bf66,
+					Status:	'p',
+					User:		[]byte("root0.1\nYour\nMagesty "),
+					Description:	[]byte("undo 0.1\nmore detailed description\n\nzzz ...\t"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieVq\x01X\x05\x00\x00\x00VHBGTq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x1f\x00\x00\x00zodb/py3 (undo b'AoXLrKj1wsw=')q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1345,
+						Oid:	3,
+						Tid:	0x0285cbacb258bf66,
+						PrevRevPos:	0,
+						TxnPos:	1165,
+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00g0.11q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1451,
+				LenPrev:  286,
+				Len:	  464,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbacbbbbbc00,
+					Status:	'p',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 4"),
+					Extension:	[]byte(""),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	1485,
+						Oid:	0,
+						Tid:	0x0285cbacbbbbbc00,
+						PrevRevPos:	0,
+						TxnPos:	1451,
+						DataLen:	284,
+					},
+					[]byte("\x80\x03cpersistent.mapping\nPersistentMapping\nq\x00.\x80\x03}q\x01X\x04\x00\x00\x00dataq\x02}q\x03(X\x01\x00\x00\x00fq\x04C\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86q\x07QX\x01\x00\x00\x00dq\x08C\x08\x00\x00\x00\x00\x00\x00\x00\x02q\th\x06\x86q\nQX\x01\x00\x00\x00gq\x0bC\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0ch\x06\x86q\rQX\x01\x00\x00\x00bq\x0eC\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x0fh\x06\x86q\x10QX\x01\x00\x00\x00aq\x11C\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x12h\x06\x86q\x13QX\x01\x00\x00\x00eq\x14C\x08\x00\x00\x00\x00\x00\x00\x00\x06q\x15h\x06\x86q\x16QX\x01\x00\x00\x00cq\x17C\x08\x00\x00\x00\x00\x00\x00\x00\x07q\x18h\x06\x86q\x19Qus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	1811,
+						Oid:	8,
+						Tid:	0x0285cbacbbbbbc00,
+						PrevRevPos:	0,
+						TxnPos:	1451,
+						DataLen:	54,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x03\x00\x00\x00b0*q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  1915,
+				LenPrev:  464,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad02222280,
+					Status:	' ',
+					User:		[]byte("user1.0"),
+					Description:	[]byte("step 1.0"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (e)q\x02X\t\x00\x00\x00x-cookieEq\x03X\x05\x00\x00\x00VAZ3Uq\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2026,
+						Oid:	6,
+						Tid:	0x0285cbad02222280,
+						PrevRevPos:	336,
+						TxnPos:	1915,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00e1.0q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2131,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad06d3a0cc,
+					Status:	' ',
+					User:		[]byte("user1.1"),
+					Description:	[]byte("step 1.1"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (b)q\x02X\t\x00\x00\x00x-cookieNq\x03X\x05\x00\x00\x00GSV4Iq\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2242,
+						Oid:	8,
+						Tid:	0x0285cbad06d3a0cc,
+						PrevRevPos:	1811,
+						TxnPos:	2131,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00b1.1q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2347,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad0b851f19,
+					Status:	' ',
+					User:		[]byte("user1.2"),
+					Description:	[]byte("step 1.2"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieYq\x01X\x05\x00\x00\x00A01OKq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (g)q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2458,
+						Oid:	3,
+						Tid:	0x0285cbad0b851f19,
+						PrevRevPos:	1345,
+						TxnPos:	2347,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00g1.2q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2563,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad10369d66,
+					Status:	' ',
+					User:		[]byte("user1.3"),
+					Description:	[]byte("step 1.3"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieWq\x01X\x05\x00\x00\x001QPNPq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (g)q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2674,
+						Oid:	3,
+						Tid:	0x0285cbad10369d66,
+						PrevRevPos:	2458,
+						TxnPos:	2563,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00g1.3q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2779,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad14e81bb3,
+					Status:	' ',
+					User:		[]byte("user1.4"),
+					Description:	[]byte("step 1.4"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieCq\x01X\x05\x00\x00\x00J7L05q\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (c)q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	2890,
+						Oid:	7,
+						Tid:	0x0285cbad14e81bb3,
+						PrevRevPos:	1059,
+						TxnPos:	2779,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00c1.4q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  2995,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad19999a00,
+					Status:	' ',
+					User:		[]byte("user1.5"),
+					Description:	[]byte("step 1.5"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (f)q\x02X\t\x00\x00\x00x-cookieAq\x03X\x05\x00\x00\x00CM15Zq\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	3106,
+						Oid:	1,
+						Tid:	0x0285cbad19999a00,
+						PrevRevPos:	117,
+						TxnPos:	2995,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00f1.5q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3211,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad1e4b184c,
+					Status:	' ',
+					User:		[]byte("user1.6"),
+					Description:	[]byte("step 1.6"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (d)q\x02X\t\x00\x00\x00x-cookieIq\x03X\x05\x00\x00\x00AH816q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	3322,
+						Oid:	2,
+						Tid:	0x0285cbad1e4b184c,
+						PrevRevPos:	774,
+						TxnPos:	3211,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00d1.6q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3427,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad22fc9699,
+					Status:	' ',
+					User:		[]byte("user1.7"),
+					Description:	[]byte("step 1.7"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieUq\x01X\x05\x00\x00\x00BE3WHq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (c)q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	3538,
+						Oid:	7,
+						Tid:	0x0285cbad22fc9699,
+						PrevRevPos:	2890,
+						TxnPos:	3427,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00c1.7q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  3643,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad27ae14e6,
+					Status:	' ',
+					User:		[]byte("user1.8"),
+					Description:	[]byte("step 1.8"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieWq\x01X\x05\x00\x00\x00HPFAQq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (c)q\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	3754,
+						Oid:	7,
+						Tid:	0x0285cbad27ae14e6,
+						PrevRevPos:	3538,
+						TxnPos:	3643,
+						DataLen:	55,
+					},
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+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  238,
+				Len:	  239,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad7c28f64c,
+					Status:	' ',
+					User:		[]byte("root1.1\nYour\nMagesty "),
+					Description:	[]byte("undo 1.1\nmore detailed description\n\nzzz ...\t\t"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x1f\x00\x00\x00zodb/py3 (undo b'AoXLrXLF+bM=')q\x02X\t\x00\x00\x00x-cookieLq\x03X\x05\x00\x00\x00CDRHVq\x04u."),
+				},
+			},
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+			[]txnEntry{
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+						Oid:	1,
+						Tid:	0x0285cbad7c28f64c,
+						PrevRevPos:	7254,
+						TxnPos:	7598,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x16Y"),
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00f1.17q\x01."),
+					/* copy from */ 0x0285cbad51eb8599,
+				},
+			},
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+		{
+			TxnHeader{
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+				LenPrev:  239,
+				Len:	  232,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad80da7499,
+					Status:	' ',
+					User:		[]byte("user"),
+					Description:	[]byte("cyclic reference"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie4q\x01X\x05\x00\x00\x00C4OMSq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x10\x00\x00\x00zodb/py3 (cycle)q\x04u."),
+				},
+			},
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+			[]txnEntry{
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+						Oid:	6,
+						Tid:	0x0285cbad80da7499,
+						PrevRevPos:	6597,
+						TxnPos:	7837,
+						DataLen:	62,
+					},
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
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+		{
+			TxnHeader{
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+				LenPrev:  232,
+				Len:	  464,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 6"),
+					Extension:	[]byte(""),
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+						Oid:	9,
+						Tid:	0x0285cbad858bf2e6,
+						PrevRevPos:	0,
+						TxnPos:	8069,
+						DataLen:	54,
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
+			TxnHeader{
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+				LenPrev:  464,
+				Len:	  266,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbad8a3d7133,
+					Status:	' ',
+					User:		[]byte("root1\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
+					Description:	[]byte("delete 1\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
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+				},
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+			[]txnEntry{
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+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
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+					/* deleted */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.0"),
+					Description:	[]byte("step 2.0"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie1q\x01X\x05\x00\x00\x00GRGS2q\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (f)q\x04u."),
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+			[]txnEntry{
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
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+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.1"),
+					Description:	[]byte("step 2.1"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie3q\x01X\x05\x00\x00\x00WYNK7q\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (d)q\x04u."),
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+			[]txnEntry{
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				LenPrev:  216,
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadd0a3d7b3,
+					Status:	' ',
+					User:		[]byte("user2.2"),
+					Description:	[]byte("step 2.2"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieFq\x01X\x05\x00\x00\x00SPFA4q\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (g)q\x04u."),
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+			[]txnEntry{
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+						Tid:	0x0285cbadd0a3d7b3,
+						PrevRevPos:	6378,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00g2.2q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
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+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadd5555600,
+					Status:	' ',
+					User:		[]byte("user2.3"),
+					Description:	[]byte("step 2.3"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (g)q\x02X\t\x00\x00\x00x-cookie1q\x03X\x05\x00\x00\x00XE3RQq\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadd5555600,
+						PrevRevPos:	9342,
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+						DataLen:	55,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00g2.3q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadda06d44c,
+					Status:	' ',
+					User:		[]byte("user2.4"),
+					Description:	[]byte("step 2.4"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (e)q\x02X\t\x00\x00\x00x-cookie2q\x03X\x05\x00\x00\x001XYQ2q\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadda06d44c,
+						PrevRevPos:	8429,
+						TxnPos:	9663,
+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00e2.4q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
+			TxnHeader{
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+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbaddeb85299,
+					Status:	' ',
+					User:		[]byte("user2.5"),
+					Description:	[]byte("step 2.5"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (a)q\x02X\t\x00\x00\x00x-cookieWq\x03X\x05\x00\x00\x00C0ZT2q\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbaddeb85299,
+						PrevRevPos:	7540,
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+						DataLen:	55,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x04\x00\x00\x00a2.5q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  10095,
+				LenPrev:  216,
+				Len:	  216,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbade369d0e6,
+					Status:	' ',
+					User:		[]byte("user2.6"),
+					Description:	[]byte("step 2.6"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie0q\x01X\x05\x00\x00\x00OX40Dq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (b)q\x04u."),
+				},
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+			[]txnEntry{
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				LenPrev:  216,
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbade81b4f33,
+					Status:	' ',
+					User:		[]byte("user2.7"),
+					Description:	[]byte("step 2.7"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (g)q\x02X\t\x00\x00\x00x-cookieYq\x03X\x05\x00\x00\x0064CY4q\x04u."),
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+			[]txnEntry{
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				LenPrev:  216,
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadeccccd80,
+					Status:	' ',
+					User:		[]byte("user2.8"),
+					Description:	[]byte("step 2.8"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (d)q\x02X\t\x00\x00\x00x-cookieZq\x03X\x05\x00\x00\x00AXYM6q\x04u."),
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+			[]txnEntry{
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbadf17e4bcc,
+					Status:	' ',
+					User:		[]byte("user2.9"),
+					Description:	[]byte("step 2.9"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie8q\x01X\x05\x00\x00\x005WYSBq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (e)q\x04u."),
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+			[]txnEntry{
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.10"),
+					Description:	[]byte("step 2.10"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (c)q\x02X\t\x00\x00\x00x-cookie2q\x03X\x05\x00\x00\x00F1402q\x04u."),
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+			[]txnEntry{
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadfae14866,
+						PrevRevPos:	10638,
+						TxnPos:	11178,
+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00d2.11q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.12"),
+					Description:	[]byte("step 2.12"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (g)q\x02X\t\x00\x00\x00x-cookie7q\x03X\x05\x00\x00\x002EFQBq\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbadff92c6b3,
+						PrevRevPos:	10422,
+						TxnPos:	11397,
+						DataLen:	56,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00g2.12q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae04444500,
+					Status:	' ',
+					User:		[]byte("user2.13"),
+					Description:	[]byte("step 2.13"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (d)q\x02X\t\x00\x00\x00x-cookieSq\x03X\x05\x00\x00\x00YS9KOq\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae04444500,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00d2.13q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
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+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.14"),
+					Description:	[]byte("step 2.14"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (c)q\x02X\t\x00\x00\x00x-cookie5q\x03X\x05\x00\x00\x00RF8GXq\x04u."),
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+			[]txnEntry{
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00c2.14q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.15"),
+					Description:	[]byte("step 2.15"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (e)q\x02X\t\x00\x00\x00x-cookie0q\x03X\x05\x00\x00\x00H70PMq\x04u."),
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+			[]txnEntry{
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+						Tid:	0x0285cbae0da74199,
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+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		},
+		{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
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+					Status:	' ',
+					User:		[]byte("user2.16"),
+					Description:	[]byte("step 2.16"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieOq\x01X\x05\x00\x00\x00MJ5PGq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (f)q\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae1258bfe6,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00f2.16q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+		{
+			TxnHeader{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae170a3e33,
+					Status:	' ',
+					User:		[]byte("user2.17"),
+					Description:	[]byte("step 2.17"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (b)q\x02X\t\x00\x00\x00x-cookie1q\x03X\x05\x00\x00\x00RAZ4Vq\x04u."),
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+			[]txnEntry{
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+						Tid:	0x0285cbae170a3e33,
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+						TxnPos:	12492,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00b2.17q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae1bbbbc80,
+					Status:	' ',
+					User:		[]byte("user2.18"),
+					Description:	[]byte("step 2.18"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieRq\x01X\x05\x00\x00\x00KE39Aq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (d)q\x04u."),
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+			[]txnEntry{
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+						Tid:	0x0285cbae1bbbbc80,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00d2.18q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae206d3acc,
+					Status:	' ',
+					User:		[]byte("user2.19"),
+					Description:	[]byte("step 2.19"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie8q\x01X\x05\x00\x00\x001SBCJq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (e)q\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae206d3acc,
+						PrevRevPos:	12167,
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+						DataLen:	56,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00e2.19q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae251eb919,
+					Status:	' ',
+					User:		[]byte("user2.20"),
+					Description:	[]byte("step 2.20"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (b)q\x02X\t\x00\x00\x00x-cookieJq\x03X\x05\x00\x00\x00EAIKMq\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae251eb919,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00b2.20q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae29d03766,
+					Status:	' ',
+					User:		[]byte("user2.21"),
+					Description:	[]byte("step 2.21"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (e)q\x02X\t\x00\x00\x00x-cookieMq\x03X\x05\x00\x00\x00ESSADq\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae29d03766,
+						PrevRevPos:	13043,
+						TxnPos:	13368,
+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00e2.21q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae2e81b5b3,
+					Status:	' ',
+					User:		[]byte("user2.22"),
+					Description:	[]byte("step 2.22"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (e)q\x02X\t\x00\x00\x00x-cookieHq\x03X\x05\x00\x00\x00DL5OCq\x04u."),
+				},
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+			[]txnEntry{
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+					DataHeader{
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+						Tid:	0x0285cbae2e81b5b3,
+						PrevRevPos:	13481,
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+						DataLen:	56,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00e2.22q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae33333400,
+					Status:	' ',
+					User:		[]byte("user2.23"),
+					Description:	[]byte("step 2.23"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x0c\x00\x00\x00zodb/py3 (d)q\x02X\t\x00\x00\x00x-cookieQq\x03X\x05\x00\x00\x00PBN2Aq\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae33333400,
+						PrevRevPos:	12824,
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+						DataLen:	56,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00d2.23q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
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+				LenPrev:  219,
+				Len:	  219,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae37e4b24c,
+					Status:	' ',
+					User:		[]byte("user2.24"),
+					Description:	[]byte("step 2.24"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookie2q\x01X\x05\x00\x00\x000GV0Iq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x0c\x00\x00\x00zodb/py3 (e)q\x04u."),
+				},
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+			[]txnEntry{
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+					DataHeader{
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+						Tid:	0x0285cbae37e4b24c,
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+						DataLen:	56,
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+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00e2.24q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				LenPrev:  219,
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae3c963099,
+					Status:	' ',
+					User:		[]byte("root2.0\nYour\nMagesty "),
+					Description:	[]byte("undo 2.0\nmore detailed description\n\nzzz ...\t\t"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieMq\x01X\x05\x00\x00\x00OQO01q\x02X\x0b\x00\x00\x00x-generatorq\x03X\x1f\x00\x00\x00zodb/py3 (undo b'AoXLrjMzNAA=')q\x04u."),
+				},
+			},
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+			[]txnEntry{
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+						Tid:	0x0285cbae3c963099,
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+					[]byte("\x00\x00\x00\x00\x00\x002\x18"),
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00d2.18q\x01."),
+					/* copy from */ 0x0285cbae1bbbbc80,
+				},
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+				LenPrev:  239,
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4147aee6,
+					Status:	' ',
+					User:		[]byte("root2.1\nYour\nMagesty "),
+					Description:	[]byte("undo 2.1\nmore detailed description\n\nzzz ...\t\t\t"),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x1f\x00\x00\x00zodb/py3 (undo b'AoXLrjfkskw=')q\x02X\t\x00\x00\x00x-cookieAq\x03X\x05\x00\x00\x00VPQ8Rq\x04u."),
+				},
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+			[]txnEntry{
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+						Tid:	0x0285cbae4147aee6,
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+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x005\x84"),
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x05\x00\x00\x00e2.22q\x01."),
+					/* copy from */ 0x0285cbae2e81b5b3,
+				},
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+				LenPrev:  240,
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae45f92d33,
+					Status:	' ',
+					User:		[]byte("user"),
+					Description:	[]byte("cyclic reference"),
+					Extension:	[]byte("\x80\x03}q\x00(X\t\x00\x00\x00x-cookieGq\x01X\x05\x00\x00\x00B6FWFq\x02X\x0b\x00\x00\x00x-generatorq\x03X\x10\x00\x00\x00zodb/py3 (cycle)q\x04u."),
+				},
+			},
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+			[]txnEntry{
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+					DataHeader{
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+						Tid:	0x0285cbae45f92d33,
+						PrevRevPos:	14425,
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+						DataLen:	62,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03C\x08\x00\x00\x00\x00\x00\x00\x00\x02q\x01h\x00\x86q\x02Q."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
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+				LenPrev:  232,
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+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4aaaab80,
+					Status:	' ',
+					User:		[]byte(""),
+					Description:	[]byte("predelete 2"),
+					Extension:	[]byte(""),
+				},
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+			[]txnEntry{
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+						DataLen:	284,
+					},
+					[]byte("\x80\x03cpersistent.mapping\nPersistentMapping\nq\x00.\x80\x03}q\x01X\x04\x00\x00\x00dataq\x02}q\x03(X\x01\x00\x00\x00fq\x04C\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86q\x07QX\x01\x00\x00\x00dq\x08C\x08\x00\x00\x00\x00\x00\x00\x00\nq\th\x06\x86q\nQX\x01\x00\x00\x00gq\x0bC\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0ch\x06\x86q\rQX\x01\x00\x00\x00bq\x0eC\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x0fh\x06\x86q\x10QX\x01\x00\x00\x00aq\x11C\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x12h\x06\x86q\x13QX\x01\x00\x00\x00eq\x14C\x08\x00\x00\x00\x00\x00\x00\x00\tq\x15h\x06\x86q\x16QX\x01\x00\x00\x00cq\x17C\x08\x00\x00\x00\x00\x00\x00\x00\x07q\x18h\x06\x86q\x19Qus."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+				{
+					DataHeader{
+						Pos:	15315,
+						Oid:	10,
+						Tid:	0x0285cbae4aaaab80,
+						PrevRevPos:	0,
+						TxnPos:	14955,
+						DataLen:	54,
+					},
+					[]byte("\x80\x03czodbtools.test.gen_testdata\nObject\nq\x00.\x80\x03X\x03\x00\x00\x00d2*q\x01."),
+					/* same as ^^^ */ sameAsRaw,
+					/* no copy */ 0,
+				},
+			},
+		},
+		{
+			TxnHeader{
+				Pos:	  15419,
+				LenPrev:  464,
+				Len:	  266,
+				TxnInfo:	zodb.TxnInfo{
+					Tid:	0x0285cbae4f5c29cc,
+					Status:	' ',
+					User:		[]byte("root2\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
+					Description:	[]byte("delete 2\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
+					Extension:	[]byte("\x80\x03}q\x00(X\x0b\x00\x00\x00x-generatorq\x01X\x13\x00\x00\x00zodb/py3 (delete 2)q\x02X\t\x00\x00\x00x-cookieTq\x03X\x05\x00\x00\x004WFSDq\x04u."),
+				},
+			},
+
+			[]txnEntry{
+				{
+					DataHeader{
+						Pos:	15627,
+						Oid:	2,
+						Tid:	0x0285cbae4f5c29cc,
+						PrevRevPos:	14843,
+						TxnPos:	15419,
+						DataLen:	0,
+					},
+					[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
+					/* deleted */ nil,
+					/* deleted */ 0,
+				},
+			},
+		},
+	}
+
+	ztestdataReg.Register("py3_pickle3", "testdata/py3_pickle3", &_TestDataOK{_1fs_indexTopPos, _1fs_indexEntryv, _1fs_dbEntryv})
+}

go/zodb/storage/fs1/ztestdata_expect_test.go

-// Code generated by ./py/gen-testdata; DO NOT EDIT.
-package fs1
-
-import "lab.nexedi.com/kirr/neo/go/zodb"
-
-const _1fs_indexTopPos = 13703
-var _1fs_indexEntryv = [...]indexEntry{
-	{       0,    13080},
-	{       1,    11320},
-	{       2,    10924},
-	{       3,    11914},
-	{       4,     8174},
-	{       5,    12988},
-	{       6,    13645},
-	{       7,     7633},
-	{       8,    10132},
-	{       9,    13354},
-}
-
-var _1fs_dbEntryv = [...]dbEntry{
-	{
-		TxnHeader{
-			Pos:	  4,
-			LenPrev:  0,
-			Len:	  159,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac258bf266,
-				Status:	' ',
-				User:		[]byte(""),
-				Description:	[]byte("initial database creation"),
-				Extension:	[]byte(""),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	52,
-					Oid:	0,
-					Tid:	0x0285cbac258bf266,
-					PrevRevPos:	0,
-					TxnPos:	4,
-					DataLen:	61,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04s."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  163,
-			LenPrev:  159,
-			Len:	  354,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac3d0369e6,
-				Status:	' ',
-				User:		[]byte("user0.0"),
-				Description:	[]byte("step 0.0"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieSU\x05RF9IEU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	256,
-					Oid:	0,
-					Tid:	0x0285cbac3d0369e6,
-					PrevRevPos:	52,
-					TxnPos:	163,
-					DataLen:	117,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04U\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86Qss."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	415,
-					Oid:	1,
-					Tid:	0x0285cbac3d0369e6,
-					PrevRevPos:	0,
-					TxnPos:	163,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04f0.0q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  517,
-			LenPrev:  354,
-			Len:	  374,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac41b4e833,
-				Status:	' ',
-				User:		[]byte("user0.1"),
-				Description:	[]byte("step 0.1"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieMU\x05LWIARU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	610,
-					Oid:	0,
-					Tid:	0x0285cbac41b4e833,
-					PrevRevPos:	256,
-					TxnPos:	517,
-					DataLen:	137,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x07h\x06\x86Qus."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	789,
-					Oid:	2,
-					Tid:	0x0285cbac41b4e833,
-					PrevRevPos:	0,
-					TxnPos:	517,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04d0.1q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  891,
-			LenPrev:  374,
-			Len:	  393,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac46666680,
-				Status:	' ',
-				User:		[]byte("user0.2"),
-				Description:	[]byte("step 0.2"),
-				Extension:	[]byte("\x80\x02}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (g)U\tx-cookieWU\x05ZTWBQu."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	984,
-					Oid:	0,
-					Tid:	0x0285cbac46666680,
-					PrevRevPos:	610,
-					TxnPos:	891,
-					DataLen:	156,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x07h\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x08h\x06\x86Qus."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	1182,
-					Oid:	3,
-					Tid:	0x0285cbac46666680,
-					PrevRevPos:	0,
-					TxnPos:	891,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04g0.2q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  1284,
-			LenPrev:  393,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac4b17e4cc,
-				Status:	' ',
-				User:		[]byte("user0.3"),
-				Description:	[]byte("step 0.3"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieHU\x053FLWYU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	1377,
-					Oid:	2,
-					Tid:	0x0285cbac4b17e4cc,
-					PrevRevPos:	789,
-					TxnPos:	1284,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04d0.3q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  1479,
-			LenPrev:  195,
-			Len:	  412,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac4fc96319,
-				Status:	' ',
-				User:		[]byte("user0.4"),
-				Description:	[]byte("step 0.4"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieTU\x05SJ0PEU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	1572,
-					Oid:	0,
-					Tid:	0x0285cbac4fc96319,
-					PrevRevPos:	984,
-					TxnPos:	1479,
-					DataLen:	175,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01bU\x08\x00\x00\x00\x00\x00\x00\x00\x04q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\x07h\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x08h\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\th\x06\x86Qus."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	1789,
-					Oid:	4,
-					Tid:	0x0285cbac4fc96319,
-					PrevRevPos:	0,
-					TxnPos:	1479,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04b0.4q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  1891,
-			LenPrev:  412,
-			Len:	  431,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac547ae166,
-				Status:	' ',
-				User:		[]byte("user0.5"),
-				Description:	[]byte("step 0.5"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie6U\x05HV8BVU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	1984,
-					Oid:	0,
-					Tid:	0x0285cbac547ae166,
-					PrevRevPos:	1572,
-					TxnPos:	1891,
-					DataLen:	194,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01aU\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01bU\x08\x00\x00\x00\x00\x00\x00\x00\x04q\x07h\x06\x86QU\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\x08h\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\th\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\nh\x06\x86Qus."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	2220,
-					Oid:	5,
-					Tid:	0x0285cbac547ae166,
-					PrevRevPos:	0,
-					TxnPos:	1891,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04a0.5q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  2322,
-			LenPrev:  431,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac592c5fb3,
-				Status:	' ',
-				User:		[]byte("user0.6"),
-				Description:	[]byte("step 0.6"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieIU\x05YSG2BU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	2415,
-					Oid:	4,
-					Tid:	0x0285cbac592c5fb3,
-					PrevRevPos:	1789,
-					TxnPos:	2322,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04b0.6q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  2517,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac5dddde00,
-				Status:	' ',
-				User:		[]byte("user0.7"),
-				Description:	[]byte("step 0.7"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieYU\x05JPJTJU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	2610,
-					Oid:	5,
-					Tid:	0x0285cbac5dddde00,
-					PrevRevPos:	2220,
-					TxnPos:	2517,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04a0.7q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  2712,
-			LenPrev:  195,
-			Len:	  450,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac628f5c4c,
-				Status:	' ',
-				User:		[]byte("user0.8"),
-				Description:	[]byte("step 0.8"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie6U\x05GLDKAU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	2805,
-					Oid:	0,
-					Tid:	0x0285cbac628f5c4c,
-					PrevRevPos:	1984,
-					TxnPos:	2712,
-					DataLen:	213,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01aU\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01bU\x08\x00\x00\x00\x00\x00\x00\x00\x04q\x07h\x06\x86QU\x01eU\x08\x00\x00\x00\x00\x00\x00\x00\x06q\x08h\x06\x86QU\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\th\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\nh\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0bh\x06\x86Qus."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	3060,
-					Oid:	6,
-					Tid:	0x0285cbac628f5c4c,
-					PrevRevPos:	0,
-					TxnPos:	2712,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04e0.8q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  3162,
-			LenPrev:  450,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac6740da99,
-				Status:	' ',
-				User:		[]byte("user0.9"),
-				Description:	[]byte("step 0.9"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieXU\x05NH3RVU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	3255,
-					Oid:	6,
-					Tid:	0x0285cbac6740da99,
-					PrevRevPos:	3060,
-					TxnPos:	3162,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04e0.9q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  3357,
-			LenPrev:  195,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac6bf258e6,
-				Status:	' ',
-				User:		[]byte("user0.10"),
-				Description:	[]byte("step 0.10"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieTU\x05XJEP9U\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	3452,
-					Oid:	3,
-					Tid:	0x0285cbac6bf258e6,
-					PrevRevPos:	1182,
-					TxnPos:	3357,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g0.10q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  3555,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac70a3d733,
-				Status:	' ',
-				User:		[]byte("user0.11"),
-				Description:	[]byte("step 0.11"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieZU\x05LYKGNU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	3650,
-					Oid:	3,
-					Tid:	0x0285cbac70a3d733,
-					PrevRevPos:	3452,
-					TxnPos:	3555,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g0.11q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  3753,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac75555580,
-				Status:	' ',
-				User:		[]byte("user0.12"),
-				Description:	[]byte("step 0.12"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie8U\x052MHMUU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	3848,
-					Oid:	1,
-					Tid:	0x0285cbac75555580,
-					PrevRevPos:	415,
-					TxnPos:	3753,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05f0.12q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  3951,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac7a06d3cc,
-				Status:	' ',
-				User:		[]byte("user0.13"),
-				Description:	[]byte("step 0.13"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie5U\x057SBT3U\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	4046,
-					Oid:	5,
-					Tid:	0x0285cbac7a06d3cc,
-					PrevRevPos:	2610,
-					TxnPos:	3951,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a0.13q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  4149,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac7eb85219,
-				Status:	' ',
-				User:		[]byte("user0.14"),
-				Description:	[]byte("step 0.14"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieMU\x05KWJO0U\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	4244,
-					Oid:	5,
-					Tid:	0x0285cbac7eb85219,
-					PrevRevPos:	4046,
-					TxnPos:	4149,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a0.14q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  4347,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac8369d066,
-				Status:	' ',
-				User:		[]byte("user0.15"),
-				Description:	[]byte("step 0.15"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieYU\x05EDZ10U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	4442,
-					Oid:	6,
-					Tid:	0x0285cbac8369d066,
-					PrevRevPos:	3255,
-					TxnPos:	4347,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e0.15q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  4545,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac881b4eb3,
-				Status:	' ',
-				User:		[]byte("user0.16"),
-				Description:	[]byte("step 0.16"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie3U\x057SX0FU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	4640,
-					Oid:	5,
-					Tid:	0x0285cbac881b4eb3,
-					PrevRevPos:	4244,
-					TxnPos:	4545,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a0.16q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  4743,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac8ccccd00,
-				Status:	' ',
-				User:		[]byte("user0.17"),
-				Description:	[]byte("step 0.17"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie3U\x05NC6I1U\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	4838,
-					Oid:	4,
-					Tid:	0x0285cbac8ccccd00,
-					PrevRevPos:	2415,
-					TxnPos:	4743,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05b0.17q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  4941,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac917e4b4c,
-				Status:	' ',
-				User:		[]byte("user0.18"),
-				Description:	[]byte("step 0.18"),
-				Extension:	[]byte("\x80\x02}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (b)U\tx-cookieOU\x05CQUX6u."),
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-
-		[]txnEntry{
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-				DataHeader{
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-					Oid:	4,
-					Tid:	0x0285cbac917e4b4c,
-					PrevRevPos:	4838,
-					TxnPos:	4941,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05b0.18q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  5139,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac962fc999,
-				Status:	' ',
-				User:		[]byte("user0.19"),
-				Description:	[]byte("step 0.19"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieFU\x05OUC9LU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
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-
-		[]txnEntry{
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-					Oid:	5,
-					Tid:	0x0285cbac962fc999,
-					PrevRevPos:	4640,
-					TxnPos:	5139,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a0.19q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  5337,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac9ae147e6,
-				Status:	' ',
-				User:		[]byte("user0.20"),
-				Description:	[]byte("step 0.20"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieUU\x05EKIBCU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
-			},
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-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	5432,
-					Oid:	2,
-					Tid:	0x0285cbac9ae147e6,
-					PrevRevPos:	1377,
-					TxnPos:	5337,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d0.20q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  5535,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbac9f92c633,
-				Status:	' ',
-				User:		[]byte("user0.21"),
-				Description:	[]byte("step 0.21"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie8U\x050QC1AU\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
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-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	5630,
-					Oid:	2,
-					Tid:	0x0285cbac9f92c633,
-					PrevRevPos:	5432,
-					TxnPos:	5535,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d0.21q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  5733,
-			LenPrev:  198,
-			Len:	  472,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbaca4444480,
-				Status:	' ',
-				User:		[]byte("user0.22"),
-				Description:	[]byte("step 0.22"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookiePU\x05ACYMMU\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
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-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	5828,
-					Oid:	0,
-					Tid:	0x0285cbaca4444480,
-					PrevRevPos:	2805,
-					TxnPos:	5733,
-					DataLen:	232,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01aU\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01cU\x08\x00\x00\x00\x00\x00\x00\x00\x07q\x07h\x06\x86QU\x01bU\x08\x00\x00\x00\x00\x00\x00\x00\x04q\x08h\x06\x86QU\x01eU\x08\x00\x00\x00\x00\x00\x00\x00\x06q\th\x06\x86QU\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\nh\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0bh\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0ch\x06\x86Qus."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	6102,
-					Oid:	7,
-					Tid:	0x0285cbaca4444480,
-					PrevRevPos:	0,
-					TxnPos:	5733,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05c0.22q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  6205,
-			LenPrev:  472,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbaca8f5c2cc,
-				Status:	' ',
-				User:		[]byte("user0.23"),
-				Description:	[]byte("step 0.23"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieMU\x05N06C8U\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
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-		[]txnEntry{
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-				DataHeader{
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-					Tid:	0x0285cbaca8f5c2cc,
-					PrevRevPos:	6102,
-					TxnPos:	6205,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05c0.23q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  6403,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbacada74119,
-				Status:	' ',
-				User:		[]byte("user0.24"),
-				Description:	[]byte("step 0.24"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieNU\x05KEEPFU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
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-		[]txnEntry{
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-				DataHeader{
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-					Oid:	3,
-					Tid:	0x0285cbacada74119,
-					PrevRevPos:	3650,
-					TxnPos:	6403,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g0.24q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  6601,
-			LenPrev:  198,
-			Len:	  216,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbacb258bf66,
-				Status:	' ',
-				User:		[]byte("root0.0\nYour\nMagesty "),
-				Description:	[]byte("undo 0.0\nmore detailed description\n\nzzz ..."),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieKU\x05G95IHU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrKj1wsw=)u."),
-			},
-		},
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-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	6759,
-					Oid:	7,
-					Tid:	0x0285cbacb258bf66,
-					PrevRevPos:	6300,
-					TxnPos:	6601,
-					DataLen:	0,
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-				[]byte("\x00\x00\x00\x00\x00\x00\x17\xd6"),
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05c0.22q\x02."),
-				/* copy from */ 0x0285cbaca4444480,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  6817,
-			LenPrev:  216,
-			Len:	  217,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbacb70a3db3,
-				Status:	' ',
-				User:		[]byte("root0.1\nYour\nMagesty "),
-				Description:	[]byte("undo 0.1\nmore detailed description\n\nzzz ...\t"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieVU\x05VHBGTU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrK2nQRk=)u."),
-			},
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-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	6976,
-					Oid:	3,
-					Tid:	0x0285cbacb70a3db3,
-					PrevRevPos:	6498,
-					TxnPos:	6817,
-					DataLen:	0,
-				},
-				[]byte("\x00\x00\x00\x00\x00\x00\x0eB"),
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g0.11q\x02."),
-				/* copy from */ 0x0285cbac70a3d733,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  7034,
-			LenPrev:  217,
-			Len:	  409,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbacbbbbbc00,
-				Status:	' ',
-				User:		[]byte(""),
-				Description:	[]byte("predelete 7"),
-				Extension:	[]byte(""),
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-		[]txnEntry{
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-				DataHeader{
-					Pos:	7068,
-					Oid:	0,
-					Tid:	0x0285cbacbbbbbc00,
-					PrevRevPos:	5828,
-					TxnPos:	7034,
-					DataLen:	232,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01aU\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01cU\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x07h\x06\x86QU\x01bU\x08\x00\x00\x00\x00\x00\x00\x00\x04q\x08h\x06\x86QU\x01eU\x08\x00\x00\x00\x00\x00\x00\x00\x06q\th\x06\x86QU\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\nh\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0bh\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0ch\x06\x86Qus."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	7342,
-					Oid:	8,
-					Tid:	0x0285cbacbbbbbc00,
-					PrevRevPos:	0,
-					TxnPos:	7034,
-					DataLen:	51,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x03c0*q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  7443,
-			LenPrev:  409,
-			Len:	  248,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbacc06d3a4c,
-				Status:	' ',
-				User:		[]byte("root0\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
-				Description:	[]byte("delete 0\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieEU\x05ZM3QZU\x0bx-generatorq\x02U\x13zodb/py2 (delete 7)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	7633,
-					Oid:	7,
-					Tid:	0x0285cbacc06d3a4c,
-					PrevRevPos:	6759,
-					TxnPos:	7443,
-					DataLen:	0,
-				},
-				[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
-				/* deleted */ nil,
-				/* deleted */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  7691,
-			LenPrev:  248,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbacfd70a433,
-				Status:	' ',
-				User:		[]byte("user1.0"),
-				Description:	[]byte("step 1.0"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie3U\x057P0TJU\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
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-					Oid:	8,
-					Tid:	0x0285cbacfd70a433,
-					PrevRevPos:	7342,
-					TxnPos:	7691,
-					DataLen:	52,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04c1.0q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  7886,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad02222280,
-				Status:	' ',
-				User:		[]byte("user1.1"),
-				Description:	[]byte("step 1.1"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieEU\x05VAZ3UU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	7979,
-					Oid:	6,
-					Tid:	0x0285cbad02222280,
-					PrevRevPos:	4442,
-					TxnPos:	7886,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04e1.1q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  8081,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad06d3a0cc,
-				Status:	' ',
-				User:		[]byte("user1.2"),
-				Description:	[]byte("step 1.2"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieNU\x05GSV4IU\x0bx-generatorq\x02U\x0czodb/py2 (b)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	8174,
-					Oid:	4,
-					Tid:	0x0285cbad06d3a0cc,
-					PrevRevPos:	5036,
-					TxnPos:	8081,
-					DataLen:	52,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04b1.2q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  8276,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad0b851f19,
-				Status:	' ',
-				User:		[]byte("user1.3"),
-				Description:	[]byte("step 1.3"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieYU\x05A01OKU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	8369,
-					Oid:	3,
-					Tid:	0x0285cbad0b851f19,
-					PrevRevPos:	6976,
-					TxnPos:	8276,
-					DataLen:	52,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04g1.3q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  8471,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad10369d66,
-				Status:	' ',
-				User:		[]byte("user1.4"),
-				Description:	[]byte("step 1.4"),
-				Extension:	[]byte("\x80\x02}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (g)U\tx-cookieWU\x051QPNPu."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	8564,
-					Oid:	3,
-					Tid:	0x0285cbad10369d66,
-					PrevRevPos:	8369,
-					TxnPos:	8471,
-					DataLen:	52,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04g1.4q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  8666,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad14e81bb3,
-				Status:	' ',
-				User:		[]byte("user1.5"),
-				Description:	[]byte("step 1.5"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieCU\x05J7L05U\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
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-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	8759,
-					Oid:	8,
-					Tid:	0x0285cbad14e81bb3,
-					PrevRevPos:	7784,
-					TxnPos:	8666,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04c1.5q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  8861,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad19999a00,
-				Status:	' ',
-				User:		[]byte("user1.6"),
-				Description:	[]byte("step 1.6"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieAU\x05CM15ZU\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
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-		[]txnEntry{
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-				DataHeader{
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-					Oid:	1,
-					Tid:	0x0285cbad19999a00,
-					PrevRevPos:	3848,
-					TxnPos:	8861,
-					DataLen:	52,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04f1.6q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  9056,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad1e4b184c,
-				Status:	' ',
-				User:		[]byte("user1.7"),
-				Description:	[]byte("step 1.7"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieIU\x05AH816U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
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-		[]txnEntry{
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-				DataHeader{
-					Pos:	9149,
-					Oid:	2,
-					Tid:	0x0285cbad1e4b184c,
-					PrevRevPos:	5630,
-					TxnPos:	9056,
-					DataLen:	52,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04d1.7q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  9251,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad22fc9699,
-				Status:	' ',
-				User:		[]byte("user1.8"),
-				Description:	[]byte("step 1.8"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieUU\x05BE3WHU\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
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-
-		[]txnEntry{
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-				DataHeader{
-					Pos:	9344,
-					Oid:	8,
-					Tid:	0x0285cbad22fc9699,
-					PrevRevPos:	8759,
-					TxnPos:	9251,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04c1.8q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  9446,
-			LenPrev:  195,
-			Len:	  195,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad27ae14e6,
-				Status:	' ',
-				User:		[]byte("user1.9"),
-				Description:	[]byte("step 1.9"),
-				Extension:	[]byte("\x80\x02}q\x01(U\x0bx-generatorq\x02U\x0czodb/py2 (c)U\tx-cookieWU\x05HPFAQu."),
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-		},
-
-		[]txnEntry{
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-				DataHeader{
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-					Oid:	8,
-					Tid:	0x0285cbad27ae14e6,
-					PrevRevPos:	9344,
-					TxnPos:	9446,
-					DataLen:	52,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x04c1.9q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
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-	{
-		TxnHeader{
-			Pos:	  9641,
-			LenPrev:  195,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad2c5f9333,
-				Status:	' ',
-				User:		[]byte("user1.10"),
-				Description:	[]byte("step 1.10"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieQU\x05DZM23U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
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-		[]txnEntry{
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-					Tid:	0x0285cbad2c5f9333,
-					PrevRevPos:	7979,
-					TxnPos:	9641,
-					DataLen:	53,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e1.10q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  9839,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad31111180,
-				Status:	' ',
-				User:		[]byte("user1.11"),
-				Description:	[]byte("step 1.11"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieOU\x05EIGHLU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
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-				DataHeader{
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-					Tid:	0x0285cbad31111180,
-					PrevRevPos:	5234,
-					TxnPos:	9839,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.11q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  10037,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad35c28fcc,
-				Status:	' ',
-				User:		[]byte("user1.12"),
-				Description:	[]byte("step 1.12"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie2U\x05Z9RFCU\x0bx-generatorq\x02U\x0czodb/py2 (c)u."),
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-
-		[]txnEntry{
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-					Tid:	0x0285cbad35c28fcc,
-					PrevRevPos:	9539,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05c1.12q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  10235,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
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-				Status:	' ',
-				User:		[]byte("user1.13"),
-				Description:	[]byte("step 1.13"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie7U\x05WGO4EU\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
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-		[]txnEntry{
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-					Tid:	0x0285cbad3a740e19,
-					PrevRevPos:	9736,
-					TxnPos:	10235,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e1.13q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  10433,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad3f258c66,
-				Status:	' ',
-				User:		[]byte("user1.14"),
-				Description:	[]byte("step 1.14"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie5U\x05757DJU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
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-		[]txnEntry{
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-				DataHeader{
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-					Tid:	0x0285cbad3f258c66,
-					PrevRevPos:	8564,
-					TxnPos:	10433,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.14q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
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-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad43d70ab3,
-				Status:	' ',
-				User:		[]byte("user1.15"),
-				Description:	[]byte("step 1.15"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieXU\x055EOVHU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
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-		[]txnEntry{
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-					Tid:	0x0285cbad43d70ab3,
-					PrevRevPos:	10528,
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.15q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
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-	{
-		TxnHeader{
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-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
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-				Status:	' ',
-				User:		[]byte("user1.16"),
-				Description:	[]byte("step 1.16"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieCU\x05HO7L7U\x0bx-generatorq\x02U\x0czodb/py2 (d)u."),
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-		[]txnEntry{
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-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05d1.16q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
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-	{
-		TxnHeader{
-			Pos:	  11027,
-			LenPrev:  198,
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-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad4d3a074c,
-				Status:	' ',
-				User:		[]byte("user1.17"),
-				Description:	[]byte("step 1.17"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieUU\x05T159SU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	11122,
-					Oid:	3,
-					Tid:	0x0285cbad4d3a074c,
-					PrevRevPos:	10726,
-					TxnPos:	11027,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.17q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  11225,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad51eb8599,
-				Status:	' ',
-				User:		[]byte("user1.18"),
-				Description:	[]byte("step 1.18"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie8U\x05T23V1U\x0bx-generatorq\x02U\x0czodb/py2 (f)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	11320,
-					Oid:	1,
-					Tid:	0x0285cbad51eb8599,
-					PrevRevPos:	8954,
-					TxnPos:	11225,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05f1.18q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  11423,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad569d03e6,
-				Status:	' ',
-				User:		[]byte("user1.19"),
-				Description:	[]byte("step 1.19"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieYU\x05UB55NU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	11518,
-					Oid:	5,
-					Tid:	0x0285cbad569d03e6,
-					PrevRevPos:	9934,
-					TxnPos:	11423,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.19q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  11621,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad5b4e8233,
-				Status:	' ',
-				User:		[]byte("user1.20"),
-				Description:	[]byte("step 1.20"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieZU\x05IKOSRU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	11716,
-					Oid:	3,
-					Tid:	0x0285cbad5b4e8233,
-					PrevRevPos:	11122,
-					TxnPos:	11621,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.20q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  11819,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad60000080,
-				Status:	' ',
-				User:		[]byte("user1.21"),
-				Description:	[]byte("step 1.21"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieSU\x057JLTHU\x0bx-generatorq\x02U\x0czodb/py2 (g)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	11914,
-					Oid:	3,
-					Tid:	0x0285cbad60000080,
-					PrevRevPos:	11716,
-					TxnPos:	11819,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05g1.21q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  12017,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad64b17ecc,
-				Status:	' ',
-				User:		[]byte("user1.22"),
-				Description:	[]byte("step 1.22"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieIU\x05USN06U\x0bx-generatorq\x02U\x0czodb/py2 (e)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	12112,
-					Oid:	6,
-					Tid:	0x0285cbad64b17ecc,
-					PrevRevPos:	10330,
-					TxnPos:	12017,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e1.22q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  12215,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad6962fd19,
-				Status:	' ',
-				User:		[]byte("user1.23"),
-				Description:	[]byte("step 1.23"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookie2U\x05UXAETU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	12310,
-					Oid:	5,
-					Tid:	0x0285cbad6962fd19,
-					PrevRevPos:	11518,
-					TxnPos:	12215,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.23q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  12413,
-			LenPrev:  198,
-			Len:	  198,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad6e147b66,
-				Status:	' ',
-				User:		[]byte("user1.24"),
-				Description:	[]byte("step 1.24"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieHU\x05AT11FU\x0bx-generatorq\x02U\x0czodb/py2 (a)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	12508,
-					Oid:	5,
-					Tid:	0x0285cbad6e147b66,
-					PrevRevPos:	12310,
-					TxnPos:	12413,
-					DataLen:	53,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.24q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  12611,
-			LenPrev:  198,
-			Len:	  217,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad77777800,
-				Status:	' ',
-				User:		[]byte("root1.0\nYour\nMagesty "),
-				Description:	[]byte("undo 1.0\nmore detailed description\n\nzzz ...\t"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieMU\x051G51MU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrWSxfsw=)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	12770,
-					Oid:	6,
-					Tid:	0x0285cbad77777800,
-					PrevRevPos:	12112,
-					TxnPos:	12611,
-					DataLen:	0,
-				},
-				[]byte("\x00\x00\x00\x00\x00\x00(Z"),
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05e1.13q\x02."),
-				/* copy from */ 0x0285cbad3a740e19,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  12828,
-			LenPrev:  217,
-			Len:	  218,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad7c28f64c,
-				Status:	' ',
-				User:		[]byte("root1.1\nYour\nMagesty "),
-				Description:	[]byte("undo 1.1\nmore detailed description\n\nzzz ...\t\t"),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieVU\x05JCDRHU\x0bx-generatorq\x02U\x1czodb/py2 (undo AoXLrW4Ue2Y=)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	12988,
-					Oid:	5,
-					Tid:	0x0285cbad7c28f64c,
-					PrevRevPos:	12508,
-					TxnPos:	12828,
-					DataLen:	0,
-				},
-				[]byte("\x00\x00\x00\x00\x00\x000\x16"),
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x05a1.23q\x02."),
-				/* copy from */ 0x0285cbad6962fd19,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  13046,
-			LenPrev:  218,
-			Len:	  409,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad80da7499,
-				Status:	' ',
-				User:		[]byte(""),
-				Description:	[]byte("predelete 6"),
-				Extension:	[]byte(""),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	13080,
-					Oid:	0,
-					Tid:	0x0285cbad80da7499,
-					PrevRevPos:	7068,
-					TxnPos:	13046,
-					DataLen:	232,
-				},
-				[]byte("\x80\x02cpersistent.mapping\nPersistentMapping\nq\x01.\x80\x02}q\x02U\x04dataq\x03}q\x04(U\x01aU\x08\x00\x00\x00\x00\x00\x00\x00\x05q\x05czodbtools.test.gen_testdata\nObject\nq\x06\x86QU\x01cU\x08\x00\x00\x00\x00\x00\x00\x00\x08q\x07h\x06\x86QU\x01bU\x08\x00\x00\x00\x00\x00\x00\x00\x04q\x08h\x06\x86QU\x01eU\x08\x00\x00\x00\x00\x00\x00\x00\tq\th\x06\x86QU\x01dU\x08\x00\x00\x00\x00\x00\x00\x00\x02q\nh\x06\x86QU\x01gU\x08\x00\x00\x00\x00\x00\x00\x00\x03q\x0bh\x06\x86QU\x01fU\x08\x00\x00\x00\x00\x00\x00\x00\x01q\x0ch\x06\x86Qus."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-			{
-				DataHeader{
-					Pos:	13354,
-					Oid:	9,
-					Tid:	0x0285cbad80da7499,
-					PrevRevPos:	0,
-					TxnPos:	13046,
-					DataLen:	51,
-				},
-				[]byte("\x80\x02czodbtools.test.gen_testdata\nObject\nq\x01.\x80\x02U\x03e1*q\x02."),
-				/* same as ^^^ */ sameAsRaw,
-				/* no copy */ 0,
-			},
-		},
-	},
-	{
-		TxnHeader{
-			Pos:	  13455,
-			LenPrev:  409,
-			Len:	  248,
-			TxnInfo:	zodb.TxnInfo{
-				Tid:	0x0285cbad858bf2e6,
-				Status:	' ',
-				User:		[]byte("root1\nYour\nRoyal\nMagesty' \x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"),
-				Description:	[]byte("delete 1\nalpha beta gamma'delta\"lambda\n\nqqq ..."),
-				Extension:	[]byte("\x80\x02}q\x01(U\tx-cookieSU\x05MC4OMU\x0bx-generatorq\x02U\x13zodb/py2 (delete 6)u."),
-			},
-		},
-
-		[]txnEntry{
-			{
-				DataHeader{
-					Pos:	13645,
-					Oid:	6,
-					Tid:	0x0285cbad858bf2e6,
-					PrevRevPos:	12770,
-					TxnPos:	13455,
-					DataLen:	0,
-				},
-				[]byte("\x00\x00\x00\x00\x00\x00\x00\x00"),
-				/* deleted */ nil,
-				/* deleted */ 0,
-			},
-		},
-	},
-}