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Test rollback in sync

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This commit is contained in:
Markus Unterwaditzer 2016-09-23 09:55:36 +02:00
parent 4e3d351917
commit 8cbfb69691
1 changed files with 17 additions and 0 deletions
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17
tests/test_sync.py
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@ -415,6 +415,10 @@ def test_unicode_hrefs():
sync(a, b, status)
class ActionIntentionallyFailed(Exception):
pass
class SyncMachine(RuleBasedStateMachine):
Status = Bundle('status')
Storage = Bundle('storage')
@ -446,6 +450,16 @@ class SyncMachine(RuleBasedStateMachine):
return s
@rule(target=Storage, s=Storage)
def actions_fail(self, s):
def blowup(*a, **kw):
raise ActionIntentionallyFailed()
s.upload = blowup
s.update = blowup
s.delete = blowup
return s
@rule(target=Status)
def newstatus(self):
return {}
@ -482,6 +496,7 @@ class SyncMachine(RuleBasedStateMachine):
assume(a is not b)
old_items_a = self._get_items(a)
old_items_b = self._get_items(b)
old_status = deepcopy(status)
try:
# If one storage is read-only, double-sync because changes don't
@ -490,6 +505,8 @@ class SyncMachine(RuleBasedStateMachine):
sync(a, b, status,
force_delete=force_delete,
conflict_resolution=conflict_resolution)
except ActionIntentionallyFailed:
assert status == old_status
except BothReadOnly:
assert a.read_only and b.read_only
assume(False)