go/zodb/fs1tools: Test it on all py2/py3 ZODB kinds of data we care about

Like with FileStorage previously we were testing fs1tools only with data
generated by python2 and pickle protocol=2. However even on py2 there are
more pickle protocols that are in use, and also there is python3.

-> Modernize testdata generation to automatically pick up all ZODB kinds
   from recently-updated FileStorage/go testdata.

   Adjust tests on Go side to verify how fs1tools 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.

go/zodb/storage/fs1/fs1tools/dump_test.go

@@ -19,19 +19,7 @@
 
 package fs1tools
 
-//go:generate sh -c "python2 -m ZODB.scripts.fstail -n 1000000 ../testdata/1.fs >testdata/1.fstail.ok"
-//go:generate sh -c "python2 -c 'from ZODB.FileStorage import fsdump; fsdump.main()' ../testdata/1.fs >testdata/1.fsdump.ok"
-//go:generate sh -c "python2 -c 'from ZODB.FileStorage.fsdump import Dumper; import sys; d = Dumper(sys.argv[1]); d.dump()' ../testdata/1.fs >testdata/1.fsdumpv.ok"
-
-// fstail.py crashes on empty.fs . The output should be empty file so generate it with just echo.
-////go:generate sh -c "python2 -m ZODB.scripts.fstail -n 1000000 ../testdata/empty.fs >testdata/empty.fstail.ok"
-//go:generate sh -c "echo -n >testdata/empty.fstail.ok"
-//go:generate sh -c "python2 -c 'from ZODB.FileStorage import fsdump; fsdump.main()' ../testdata/empty.fs >testdata/empty.fsdump.ok"
-//go:generate sh -c "python2 -c 'from ZODB.FileStorage.fsdump import Dumper; import sys; d = Dumper(sys.argv[1]); d.dump()' ../testdata/empty.fs >testdata/empty.fsdumpv.ok"
-
-//go:generate sh -c "python2 -m ZODB.scripts.fstail -n 1000000 ../testdata/whiteout.fs >testdata/whiteout.fstail.ok"
-//go:generate sh -c "python2 -c 'from ZODB.FileStorage import fsdump; fsdump.main()' ../testdata/whiteout.fs >testdata/whiteout.fsdump.ok"
-//go:generate sh -c "python2 -c 'from ZODB.FileStorage.fsdump import Dumper; import sys; d = Dumper(sys.argv[1]); d.dump()' ../testdata/whiteout.fs >testdata/whiteout.fsdumpv.ok"
+//go:generate ./gen-testdata
 
 import (
 	"bytes"
@@ -39,11 +27,17 @@ import (
 	"io/ioutil"
 	"testing"
 
+	"lab.nexedi.com/kirr/neo/go/internal/xtesting"
 	"lab.nexedi.com/kirr/neo/go/zodb/storage/fs1"
 
 	"github.com/kylelemons/godebug/diff"
 )
 
+// ztestdataReg maintains registry of all entries under testdata/ .
+var  ztestdataReg = xtesting.ZTestDataRegistry[struct{}]{}
+type ZTestData    = xtesting.ZTestData[struct{}]
+
+
 func loadFile(t *testing.T, path string) string {
 	data, err := ioutil.ReadFile(path)
 	if err != nil {
@@ -53,18 +47,27 @@ func loadFile(t *testing.T, path string) string {
 }
 
 func testDump(t *testing.T, dir fs1.IterDir, newd func() Dumper) {
+	ztestdataReg.RunWithEach(t, func(t *testing.T, z *ZTestData) {
+		_testDump(t, dir, newd, z)
+	})
+}
+
+func _testDump(t *testing.T, dir fs1.IterDir, newd func() Dumper, z *ZTestData) {
+	if z.Kind == "py3_pickle3" {
+		t.Skip("xfail")
+	}
 	testv := []string{"1", "empty", "whiteout"}
 	for _, tt := range testv {
 		t.Run("db=" + tt, func(t *testing.T) {
 			d   := newd()
 			buf := bytes.Buffer{}
 
-			err := Dump(&buf, fmt.Sprintf("../testdata/%s.fs", tt), dir, d)
+			err := Dump(&buf, "../"+z.Path(tt+".fs"), dir, d)
 			if err != nil {
 				t.Fatalf("%s: %v", d.DumperName(), err)
 			}
 
-			dumpOk := loadFile(t, fmt.Sprintf("testdata/%s.%s.ok", tt, d.DumperName()))
+			dumpOk := loadFile(t, z.Path(fmt.Sprintf("/%s.%s.ok", tt, d.DumperName())))
 
 			if dumpOk != buf.String() {
 				t.Errorf("%s: dump different:\n%v", d.DumperName(), diff.Diff(dumpOk, buf.String()))

go/zodb/storage/fs1/fs1tools/gen-testdata

+#!/bin/bash -e
+# generate files in testdata/
+#
+# 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
+# option) any later version, as published by the Free Software Foundation.
+#
+# You can also Link and Combine this program with other software covered by
+# the terms of any of the Free Software licenses or any of the Open Source
+# Initiative approved licenses and Convey the resulting work. Corresponding
+# source of such a combination shall include the source code for all other
+# software used.
+#
+# This program is distributed WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# See COPYING file for full licensing terms.
+# See https://www.nexedi.com/licensing for rationale and options.
+
+rm -rf testdata ztestdata_test.go
+
+emit() {
+	echo -e "$@" >>ztestdata_test.go
+}
+
+emit "// Code generated by gen-testdata; DO NOT EDIT."
+emit "package fs1tools"
+emit "func init() {"
+
+for zin in ../testdata/*/ ; do
+	zkind=`basename $zin`	# py2_pickle3
+	py=(${zkind//_/ })	# (py2 pickle3)
+	py=${py[0]}		# py2
+	python=${py/py/python}	# python2
+
+	out=testdata/$zkind
+	mkdir -p "$out"
+
+	emit "\tztestdataReg.Register(\"$zkind\", \"$out\", nil)"
+
+	$python -m ZODB.scripts.fstail -n 1000000 $zin/1.fs >$out/1.fstail.ok
+	$python -c 'from ZODB.FileStorage import fsdump; fsdump.main()' $zin/1.fs >$out/1.fsdump.ok
+	$python -c 'from ZODB.FileStorage.fsdump import Dumper; import sys; d = Dumper(sys.argv[1]); d.dump()' $zin/1.fs >$out/1.fsdumpv.ok
+
+	# fstail.py crashes on empty.fs . The output should be empty file so generate it with just echo.
+	# $python -m ZODB.scripts.fstail -n 1000000 $zin/empty.fs >$out/empty.fstail.ok
+	echo -n >$out/empty.fstail.ok
+	$python -c 'from ZODB.FileStorage import fsdump; fsdump.main()' $zin/empty.fs >$out/empty.fsdump.ok
+	$python -c 'from ZODB.FileStorage.fsdump import Dumper; import sys; d = Dumper(sys.argv[1]); d.dump()' $zin/empty.fs >$out/empty.fsdumpv.ok
+
+	$python -m ZODB.scripts.fstail -n 1000000 $zin/whiteout.fs >$out/whiteout.fstail.ok
+	$python -c 'from ZODB.FileStorage import fsdump; fsdump.main()' $zin/whiteout.fs >$out/whiteout.fsdump.ok
+	$python -c 'from ZODB.FileStorage.fsdump import Dumper; import sys; d = Dumper(sys.argv[1]); d.dump()' $zin/whiteout.fs >$out/whiteout.fsdumpv.ok
+done
+
+emit "}"

go/zodb/storage/fs1/fs1tools/testdata/1.fstail.ok

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-

go/zodb/storage/fs1/fs1tools/testdata/py2_pickle2/empty.fsdumpv.ok

+************************************************************
+file identifier: 'FS21'

go/zodb/storage/fs1/fs1tools/testdata/py2_pickle2/whiteout.fsdump.ok

+Trans #00000 tid=0000000000000017 size=73 time=1900-01-01 00:00:00.000000 offset=27
+    status=' ' user='' description=''
+  data #00000 oid=0000000000000001 class=undo or abort of object creation

go/zodb/storage/fs1/fs1tools/testdata/py2_pickle2/whiteout.fsdumpv.ok

+************************************************************
+file identifier: 'FS21'
+============================================================
+offset: 4
+end pos: 77
+transaction id: 0000000000000017
+trec len: 73
+status: ' '
+user: ''
+description: ''
+len(extra): 0
+------------------------------------------------------------
+offset: 27
+oid: 0000000000000001
+revid: 0000000000000017
+previous record offset: 0
+transaction offset: 4
+len(data): 0
+backpointer: 0
+redundant trec len: 73

go/zodb/storage/fs1/fs1tools/testdata/py2_pickle2/whiteout.fstail.ok

+1900-01-01 00:00:00.000000: hash=e3e0ff6c686f2fa02266e744f6629d592d432061
+user='' description='' length=73 offset=4 (+23)
+

go/zodb/storage/fs1/fs1tools/testdata/py2_pickle3/empty.fsdumpv.ok

+************************************************************
+file identifier: 'FS21'

go/zodb/storage/fs1/fs1tools/testdata/py2_pickle3/whiteout.fsdump.ok

+Trans #00000 tid=0000000000000017 size=73 time=1900-01-01 00:00:00.000000 offset=27
+    status=' ' user='' description=''
+  data #00000 oid=0000000000000001 class=undo or abort of object creation

go/zodb/storage/fs1/fs1tools/testdata/py2_pickle3/whiteout.fsdumpv.ok

+************************************************************
+file identifier: 'FS21'
+============================================================
+offset: 4
+end pos: 77
+transaction id: 0000000000000017
+trec len: 73
+status: ' '
+user: ''
+description: ''
+len(extra): 0
+------------------------------------------------------------
+offset: 27
+oid: 0000000000000001
+revid: 0000000000000017
+previous record offset: 0
+transaction offset: 4
+len(data): 0
+backpointer: 0
+redundant trec len: 73

go/zodb/storage/fs1/fs1tools/testdata/py2_pickle3/whiteout.fstail.ok

+1900-01-01 00:00:00.000000: hash=e3e0ff6c686f2fa02266e744f6629d592d432061
+user='' description='' length=73 offset=4 (+23)
+

go/zodb/storage/fs1/fs1tools/testdata/py3_pickle3/empty.fsdumpv.ok

+************************************************************
+file identifier: b'FS30'

go/zodb/storage/fs1/fs1tools/testdata/py3_pickle3/whiteout.fsdump.ok

+Trans #00000 tid=0000000000000017 size=73 time=1900-01-01 00:00:00.000000 offset=27
+    status=' ' user=b'' description=b''
+  data #00000 oid=0000000000000001 class=undo or abort of object creation

go/zodb/storage/fs1/fs1tools/testdata/py3_pickle3/whiteout.fsdumpv.ok

+************************************************************
+file identifier: b'FS30'
+============================================================
+offset: 4
+end pos: 77
+transaction id: 0000000000000017
+trec len: 73
+status: b' '
+user: ''
+description: ''
+len(extra): 0
+------------------------------------------------------------
+offset: 27
+oid: 0000000000000001
+revid: 0000000000000017
+previous record offset: 0
+transaction offset: 4
+len(data): 0
+backpointer: 0
+redundant trec len: 73

go/zodb/storage/fs1/fs1tools/testdata/py3_pickle3/whiteout.fstail.ok

+1900-01-01 00:00:00.000000: hash=e3e0ff6c686f2fa02266e744f6629d592d432061
+user='' description='' length=73 offset=4 (+23)
+

go/zodb/storage/fs1/fs1tools/ztestdata_test.go

+// Code generated by gen-testdata; DO NOT EDIT.
+package fs1tools
+func init() {
+	ztestdataReg.Register("py2_pickle1", "testdata/py2_pickle1", nil)
+	ztestdataReg.Register("py2_pickle2", "testdata/py2_pickle2", nil)
+	ztestdataReg.Register("py2_pickle3", "testdata/py2_pickle3", nil)
+	ztestdataReg.Register("py3_pickle3", "testdata/py3_pickle3", nil)
+}