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nexedi
ZEO
Commits
3e954dc7
Commit
3e954dc7
authored
Apr 22, 2003
by
Jeremy Hylton
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Backport to pack tests from ZODB4.
parent
fc5fb55f
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src/ZODB/tests/TransactionalUndoStorage.py
src/ZODB/tests/TransactionalUndoStorage.py
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src/ZODB/tests/TransactionalUndoStorage.py
View file @
3e954dc7
...
@@ -34,6 +34,23 @@ ZERO = '\0'*8
...
@@ -34,6 +34,23 @@ ZERO = '\0'*8
class
C
(
Persistent
):
class
C
(
Persistent
):
pass
pass
def
snooze
():
# In Windows, it's possible that two successive time.time() calls return
# the same value. Tim guarantees that time never runs backwards. You
# usually want to call this before you pack a storage, or must make other
# guarantees about increasing timestamps.
now
=
time
.
time
()
while
now
==
time
.
time
():
time
.
sleep
(
0.1
)
def
listeq
(
L1
,
L2
):
"""Return True if L1.sort() == L2.sort()"""
c1
=
L1
[:]
c2
=
L2
[:]
c1
.
sort
()
c2
.
sort
()
return
c1
==
c2
class
TransactionalUndoStorage
:
class
TransactionalUndoStorage
:
def
_transaction_begin
(
self
):
def
_transaction_begin
(
self
):
...
@@ -556,6 +573,187 @@ class TransactionalUndoStorage:
...
@@ -556,6 +573,187 @@ class TransactionalUndoStorage:
eq
(
o1
.
obj
.
obj
,
o3
)
eq
(
o1
.
obj
.
obj
,
o3
)
self
.
_iterate
()
self
.
_iterate
()
def
checkPackAfterUndoDeletion
(
self
):
db
=
DB
(
self
.
_storage
)
cn
=
db
.
open
()
root
=
cn
.
root
()
pack_times
=
[]
def
set_pack_time
():
snooze
()
pack_times
.
append
(
time
.
time
())
root
[
"key0"
]
=
MinPO
(
0
)
root
[
"key1"
]
=
MinPO
(
1
)
root
[
"key2"
]
=
MinPO
(
2
)
txn
=
get_transaction
()
txn
.
note
(
"create 3 keys"
)
txn
.
commit
()
set_pack_time
()
del
root
[
"key1"
]
txn
=
get_transaction
()
txn
.
note
(
"delete 1 key"
)
txn
.
commit
()
set_pack_time
()
root
.
_p_deactivate
()
cn
.
sync
()
self
.
assert_
(
listeq
(
root
.
keys
(),
[
"key0"
,
"key2"
]))
L
=
db
.
undoInfo
()
db
.
undo
(
L
[
0
][
"id"
])
txn
=
get_transaction
()
txn
.
note
(
"undo deletion"
)
txn
.
commit
()
set_pack_time
()
root
.
_p_deactivate
()
cn
.
sync
()
self
.
assert_
(
listeq
(
root
.
keys
(),
[
"key0"
,
"key1"
,
"key2"
]))
for
t
in
pack_times
:
self
.
_storage
.
pack
(
t
,
referencesf
)
root
.
_p_deactivate
()
cn
.
sync
()
self
.
assert_
(
listeq
(
root
.
keys
(),
[
"key0"
,
"key1"
,
"key2"
]))
for
i
in
range
(
3
):
obj
=
root
[
"key%d"
%
i
]
self
.
assertEqual
(
obj
.
value
,
i
)
root
.
items
()
def
checkPackAfterUndoManyTimes
(
self
):
db
=
DB
(
self
.
_storage
)
cn
=
db
.
open
()
rt
=
cn
.
root
()
rt
[
"test"
]
=
MinPO
(
1
)
get_transaction
().
commit
()
rt
[
"test2"
]
=
MinPO
(
2
)
get_transaction
().
commit
()
rt
[
"test"
]
=
MinPO
(
3
)
txn
=
get_transaction
()
txn
.
note
(
"root of undo"
)
txn
.
commit
()
packtimes
=
[]
for
i
in
range
(
10
):
L
=
db
.
undoInfo
()
db
.
undo
(
L
[
0
][
"id"
])
txn
=
get_transaction
()
txn
.
note
(
"undo %d"
%
i
)
txn
.
commit
()
rt
.
_p_deactivate
()
cn
.
sync
()
self
.
assertEqual
(
rt
[
"test"
].
value
,
i
%
2
and
3
or
1
)
self
.
assertEqual
(
rt
[
"test2"
].
value
,
2
)
packtimes
.
append
(
time
.
time
())
snooze
()
for
t
in
packtimes
:
self
.
_storage
.
pack
(
t
,
referencesf
)
cn
.
sync
()
cn
.
_cache
.
clear
()
# The last undo set the value to 3 and pack should
# never change that.
self
.
assertEqual
(
rt
[
"test"
].
value
,
3
)
self
.
assertEqual
(
rt
[
"test2"
].
value
,
2
)
def
testTransactionalUndoIterator
(
self
):
# check that data_txn set in iterator makes sense
if
not
hasattr
(
self
.
_storage
,
"iterator"
):
return
s
=
self
.
_storage
BATCHES
=
4
OBJECTS
=
4
orig
=
[]
for
i
in
range
(
BATCHES
):
t
=
Transaction
()
tid
=
p64
(
i
+
1
)
s
.
tpcBegin
(
t
,
tid
)
for
j
in
range
(
OBJECTS
):
oid
=
s
.
newObjectId
()
obj
=
MinPO
(
i
*
OBJECTS
+
j
)
data
,
refs
=
zodb_pickle
(
obj
)
revid
=
s
.
store
(
oid
,
None
,
data
,
refs
,
''
,
t
)
orig
.
append
((
tid
,
oid
,
revid
))
s
.
tpcVote
(
t
)
s
.
tpcFinish
(
t
)
i
=
0
for
tid
,
oid
,
revid
in
orig
:
self
.
_dostore
(
oid
,
revid
=
revid
,
data
=
MinPO
(
revid
),
description
=
"update %s"
%
i
)
# Undo the OBJECTS transactions that modified objects created
# in the ith original transaction.
def
undo
(
i
):
info
=
s
.
undoInfo
()
t
=
Transaction
()
s
.
tpcBegin
(
t
)
base
=
i
*
OBJECTS
+
i
for
j
in
range
(
OBJECTS
):
tid
=
info
[
base
+
j
][
'id'
]
s
.
undo
(
tid
,
t
)
s
.
tpcVote
(
t
)
s
.
tpcFinish
(
t
)
for
i
in
range
(
BATCHES
):
undo
(
i
)
# There are now (2 + OBJECTS) * BATCHES transactions:
# BATCHES original transactions, followed by
# OBJECTS * BATCHES modifications, followed by
# BATCHES undos
fsiter
=
iter
(
s
.
iterator
())
offset
=
0
eq
=
self
.
assertEqual
for
i
in
range
(
BATCHES
):
txn
=
fsiter
.
next
()
offset
+=
1
tid
=
p64
(
i
+
1
)
eq
(
txn
.
tid
,
tid
)
L1
=
[(
rec
.
oid
,
rec
.
serial
,
rec
.
data_txn
)
for
rec
in
txn
]
L2
=
[(
oid
,
revid
,
None
)
for
_tid
,
oid
,
revid
in
orig
if
_tid
==
tid
]
eq
(
L1
,
L2
)
for
i
in
range
(
BATCHES
*
OBJECTS
):
txn
=
fsiter
.
next
()
offset
+=
1
eq
(
len
([
rec
for
rec
in
txn
if
rec
.
data_txn
is
None
]),
1
)
for
i
in
range
(
BATCHES
):
txn
=
fsiter
.
next
()
offset
+=
1
# The undos are performed in reverse order.
otid
=
p64
(
BATCHES
-
i
)
L1
=
[(
rec
.
oid
,
rec
.
data_txn
)
for
rec
in
txn
]
L2
=
[(
oid
,
otid
)
for
_tid
,
oid
,
revid
in
orig
if
_tid
==
otid
]
L1
.
sort
()
L2
.
sort
()
eq
(
L1
,
L2
)
self
.
assertRaises
(
StopIteration
,
fsiter
.
next
)
def
checkTransactionalUndoIterator
(
self
):
def
checkTransactionalUndoIterator
(
self
):
# check that data_txn set in iterator makes sense
# check that data_txn set in iterator makes sense
if
not
hasattr
(
self
.
_storage
,
"iterator"
):
if
not
hasattr
(
self
.
_storage
,
"iterator"
):
...
...
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