def checkRSResolve(self):
# ZODB.tests.ConflictResolution.ConflictResolvingStorage has a checkResolve
# with a different signature (as of 4.4.0) that we were unintentionally(?)
# shadowing, hence the weird name.
obj = PCounter()
obj.inc()
oid = self._storage.new_oid()
revid1 = self._dostoreNP(oid, data=zodb_pickle(obj))
obj.inc()
obj.inc()
# The effect of committing two transactions with the same
# pickle is to commit two different transactions relative to
# revid1 that add two to _value.
# open s1
s1 = self._storage.new_instance()
# start a load transaction in s1
s1.poll_invalidations()
# commit a change
_revid2 = self._dostoreNP(oid, revid=revid1, data=zodb_pickle(obj))
# commit a conflicting change using s1
main_storage = self._storage
self._storage = s1
try:
# we can resolve this conflict because s1 has an open
# transaction that can read the old state of the object.
_revid3 = self._dostoreNP(oid, revid=revid1, data=zodb_pickle(obj))
s1.release()
finally:
self._storage = main_storage
data, _serialno = self._storage.load(oid, '')
inst = zodb_unpickle(data)
self.assertEqual(inst._value, 5)
def checkResolve(self):
obj = PCounter()
obj.inc()
oid = self._storage.new_oid()
revid1 = self._dostoreNP(oid, data=zodb_pickle(obj))
obj.inc()
obj.inc()
# The effect of committing two transactions with the same
# pickle is to commit two different transactions relative to
# revid1 that add two to _value.
# open s1
s1 = self._storage.new_instance()
# start a load transaction in s1
s1.poll_invalidations()
# commit a change
revid2 = self._dostoreNP(oid, revid=revid1, data=zodb_pickle(obj))
# commit a conflicting change using s1
main_storage = self._storage
self._storage = s1
try:
# we can resolve this conflict because s1 has an open
# transaction that can read the old state of the object.
revid3 = self._dostoreNP(oid, revid=revid1, data=zodb_pickle(obj))
s1.release()
finally:
self._storage = main_storage
data, serialno = self._storage.load(oid, '')
inst = zodb_unpickle(data)
self.assertEqual(inst._value, 5)
def checkRSResolve(self):
# ZODB.tests.ConflictResolution.ConflictResolvingStorage has a checkResolve
# with a different signature (as of 4.4.0) that we were unintentionally(?)
# shadowing, hence the weird name.
obj = PCounter()
obj.inc()
oid = self._storage.new_oid()
revid1 = self._dostoreNP(oid, data=zodb_pickle(obj))
obj.inc()
obj.inc()
# The effect of committing two transactions with the same
# pickle is to commit two different transactions relative to
# revid1 that add two to _value.
# open s1 at this point of time.
s1 = self._storage.new_instance()
# start a load transaction in s1
s1.poll_invalidations()
# commit a change not visible to s1
_revid2 = self._dostoreNP(oid, revid=revid1, data=zodb_pickle(obj))
# commit a conflicting change using s1
main_storage = self._storage
self._storage = s1
try:
# we can resolve this conflict because s1 has an open
# transaction that can read the old state of the object.
_revid3 = self._dostoreNP(oid, revid=revid1, data=zodb_pickle(obj))
s1.release()
finally:
self._storage = main_storage
# If we don't restart our load connection,
# we will still read the old state.
data, _serialno = self._storage.load(oid, '')
inst = zodb_unpickle(data)
self.assertEqual(inst._value, 3)
self._storage.poll_invalidations()
data, _serialno = self._storage.load(oid, '')
inst = zodb_unpickle(data)
self.assertEqual(inst._value, 5)
def checkResolve(self):
obj = PCounter()
obj.inc()
oid = self._storage.new_oid()
revid1 = self._dostoreNP(oid, data=zodb_pickle(obj))
obj.inc()
obj.inc()
# The effect of committing two transactions with the same
# pickle is to commit two different transactions relative to
# revid1 that add two to _value.
# open s1
s1 = self._storage.new_instance()
# start a load transaction in s1
s1.poll_invalidations()
# commit a change
revid2 = self._dostoreNP(oid, revid=revid1, data=zodb_pickle(obj))
# commit a conflicting change using s1
main_storage = self._storage
self._storage = s1
try:
# we can resolve this conflict because s1 has an open
# transaction that can read the old state of the object.
revid3 = self._dostoreNP(oid, revid=revid1, data=zodb_pickle(obj))
s1.release()
finally:
self._storage = main_storage
data, serialno = self._storage.load(oid, '')
inst = zodb_unpickle(data)
self.assertEqual(inst._value, 5)