mirror of
https://github.com/samsonjs/vdirsyncer.git
synced 2026-03-25 08:55:50 +00:00
652 lines
17 KiB
Python
652 lines
17 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
from copy import deepcopy
|
|
|
|
import hypothesis.strategies as st
|
|
from hypothesis import assume
|
|
from hypothesis.stateful import Bundle, RuleBasedStateMachine, rule
|
|
|
|
import pytest
|
|
|
|
from tests import blow_up, uid_strategy
|
|
|
|
from vdirsyncer.storage.memory import MemoryStorage, _random_string
|
|
from vdirsyncer.sync import BothReadOnly, IdentConflict, PartialSync, \
|
|
StorageEmpty, SyncConflict, sync
|
|
from vdirsyncer.vobject import Item
|
|
|
|
|
|
def empty_storage(x):
|
|
return list(x.list()) == []
|
|
|
|
|
|
def items(s):
|
|
return set(x[1].raw for x in s.items.values())
|
|
|
|
|
|
def test_irrelevant_status():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {'1': ('1', 1234, '1.ics', 2345)}
|
|
sync(a, b, status)
|
|
assert not status
|
|
assert not items(a)
|
|
assert not items(b)
|
|
|
|
|
|
def test_missing_status():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
item = Item(u'asdf')
|
|
a.upload(item)
|
|
b.upload(item)
|
|
sync(a, b, status)
|
|
assert len(status) == 1
|
|
assert items(a) == items(b) == {item.raw}
|
|
|
|
|
|
def test_missing_status_and_different_items():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
|
|
status = {}
|
|
item1 = Item(u'UID:1\nhaha')
|
|
item2 = Item(u'UID:1\nhoho')
|
|
a.upload(item1)
|
|
b.upload(item2)
|
|
with pytest.raises(SyncConflict):
|
|
sync(a, b, status)
|
|
assert not status
|
|
sync(a, b, status, conflict_resolution='a wins')
|
|
assert items(a) == items(b) == {item1.raw}
|
|
|
|
|
|
def test_read_only_and_prefetch():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
b.read_only = True
|
|
|
|
status = {}
|
|
item1 = Item(u'UID:1\nhaha')
|
|
item2 = Item(u'UID:2\nhoho')
|
|
a.upload(item1)
|
|
a.upload(item2)
|
|
|
|
sync(a, b, status, force_delete=True)
|
|
sync(a, b, status, force_delete=True)
|
|
|
|
assert not items(a) and not items(b)
|
|
|
|
|
|
def test_partial_sync_error():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
|
|
a.upload(Item('UID:0'))
|
|
b.read_only = True
|
|
|
|
with pytest.raises(PartialSync):
|
|
sync(a, b, status, partial_sync='error')
|
|
|
|
|
|
def test_partial_sync_ignore():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
|
|
item0 = Item('UID:0\nhehe')
|
|
a.upload(item0)
|
|
b.upload(item0)
|
|
|
|
b.read_only = True
|
|
|
|
item1 = Item('UID:1\nhaha')
|
|
a.upload(item1)
|
|
|
|
sync(a, b, status, partial_sync='ignore')
|
|
sync(a, b, status, partial_sync='ignore')
|
|
|
|
assert items(a) == {item0.raw, item1.raw}
|
|
assert items(b) == {item0.raw}
|
|
|
|
|
|
def test_partial_sync_ignore2():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
|
|
href, etag = a.upload(Item('UID:0'))
|
|
a.read_only = True
|
|
|
|
sync(a, b, status, partial_sync='ignore', force_delete=True)
|
|
assert items(b) == items(a) == {'UID:0'}
|
|
|
|
b.items.clear()
|
|
sync(a, b, status, partial_sync='ignore', force_delete=True)
|
|
sync(a, b, status, partial_sync='ignore', force_delete=True)
|
|
assert items(a) == {'UID:0'}
|
|
assert not b.items
|
|
|
|
a.read_only = False
|
|
a.update(href, Item('UID:0\nupdated'), etag)
|
|
a.read_only = True
|
|
sync(a, b, status, partial_sync='ignore', force_delete=True)
|
|
assert items(b) == items(a) == {'UID:0\nupdated'}
|
|
|
|
|
|
def test_upload_and_update():
|
|
a = MemoryStorage(fileext='.a')
|
|
b = MemoryStorage(fileext='.b')
|
|
status = {}
|
|
|
|
item = Item(u'UID:1') # new item 1 in a
|
|
a.upload(item)
|
|
sync(a, b, status)
|
|
assert items(b) == items(a) == {item.raw}
|
|
|
|
item = Item(u'UID:1\nASDF:YES') # update of item 1 in b
|
|
b.update('1.b', item, b.get('1.b')[1])
|
|
sync(a, b, status)
|
|
assert items(b) == items(a) == {item.raw}
|
|
|
|
item2 = Item(u'UID:2') # new item 2 in b
|
|
b.upload(item2)
|
|
sync(a, b, status)
|
|
assert items(b) == items(a) == {item.raw, item2.raw}
|
|
|
|
item2 = Item(u'UID:2\nASDF:YES') # update of item 2 in a
|
|
a.update('2.a', item2, a.get('2.a')[1])
|
|
sync(a, b, status)
|
|
assert items(b) == items(a) == {item.raw, item2.raw}
|
|
|
|
|
|
def test_deletion():
|
|
a = MemoryStorage(fileext='.a')
|
|
b = MemoryStorage(fileext='.b')
|
|
status = {}
|
|
|
|
item = Item(u'UID:1')
|
|
a.upload(item)
|
|
item2 = Item(u'UID:2')
|
|
a.upload(item2)
|
|
sync(a, b, status)
|
|
b.delete('1.b', b.get('1.b')[1])
|
|
sync(a, b, status)
|
|
assert items(a) == items(b) == {item2.raw}
|
|
|
|
a.upload(item)
|
|
sync(a, b, status)
|
|
assert items(a) == items(b) == {item.raw, item2.raw}
|
|
a.delete('1.a', a.get('1.a')[1])
|
|
sync(a, b, status)
|
|
assert items(a) == items(b) == {item2.raw}
|
|
|
|
|
|
def test_insert_hash():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
|
|
item = Item('UID:1')
|
|
href, etag = a.upload(item)
|
|
sync(a, b, status)
|
|
|
|
for d in status['1']:
|
|
del d['hash']
|
|
|
|
a.update(href, Item('UID:1\nHAHA:YES'), etag)
|
|
sync(a, b, status)
|
|
assert 'hash' in status['1'][0] and 'hash' in status['1'][1]
|
|
|
|
|
|
def test_already_synced():
|
|
a = MemoryStorage(fileext='.a')
|
|
b = MemoryStorage(fileext='.b')
|
|
item = Item(u'UID:1')
|
|
a.upload(item)
|
|
b.upload(item)
|
|
status = {
|
|
'1': ({
|
|
'href': '1.a',
|
|
'hash': item.hash,
|
|
'etag': a.get('1.a')[1]
|
|
}, {
|
|
'href': '1.b',
|
|
'hash': item.hash,
|
|
'etag': b.get('1.b')[1]
|
|
})
|
|
}
|
|
old_status = deepcopy(status)
|
|
a.update = b.update = a.upload = b.upload = \
|
|
lambda *a, **kw: pytest.fail('Method shouldn\'t have been called.')
|
|
|
|
for _ in (1, 2):
|
|
sync(a, b, status)
|
|
assert status == old_status
|
|
assert items(a) == items(b) == {item.raw}
|
|
|
|
|
|
@pytest.mark.parametrize('winning_storage', 'ab')
|
|
def test_conflict_resolution_both_etags_new(winning_storage):
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
item = Item(u'UID:1')
|
|
href_a, etag_a = a.upload(item)
|
|
href_b, etag_b = b.upload(item)
|
|
status = {}
|
|
sync(a, b, status)
|
|
assert status
|
|
item_a = Item(u'UID:1\nitem a')
|
|
item_b = Item(u'UID:1\nitem b')
|
|
a.update(href_a, item_a, etag_a)
|
|
b.update(href_b, item_b, etag_b)
|
|
with pytest.raises(SyncConflict):
|
|
sync(a, b, status)
|
|
sync(a, b, status, conflict_resolution='{} wins'.format(winning_storage))
|
|
assert items(a) == items(b) == {
|
|
item_a.raw if winning_storage == 'a' else item_b.raw
|
|
}
|
|
|
|
|
|
def test_updated_and_deleted():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
href_a, etag_a = a.upload(Item(u'UID:1'))
|
|
status = {}
|
|
sync(a, b, status, force_delete=True)
|
|
|
|
(href_b, etag_b), = b.list()
|
|
b.delete(href_b, etag_b)
|
|
updated = Item(u'UID:1\nupdated')
|
|
a.update(href_a, updated, etag_a)
|
|
sync(a, b, status, force_delete=True)
|
|
|
|
assert items(a) == items(b) == {updated.raw}
|
|
|
|
|
|
def test_conflict_resolution_invalid_mode():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
item_a = Item(u'UID:1\nitem a')
|
|
item_b = Item(u'UID:1\nitem b')
|
|
a.upload(item_a)
|
|
b.upload(item_b)
|
|
with pytest.raises(ValueError):
|
|
sync(a, b, {}, conflict_resolution='yolo')
|
|
|
|
|
|
def test_conflict_resolution_new_etags_without_changes():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
item = Item(u'UID:1')
|
|
href_a, etag_a = a.upload(item)
|
|
href_b, etag_b = b.upload(item)
|
|
status = {'1': (href_a, 'BOGUS_a', href_b, 'BOGUS_b')}
|
|
|
|
sync(a, b, status)
|
|
|
|
(ident, (status_a, status_b)), = status.items()
|
|
assert ident == '1'
|
|
assert status_a['href'] == href_a
|
|
assert status_a['etag'] == etag_a
|
|
assert status_b['href'] == href_b
|
|
assert status_b['etag'] == etag_b
|
|
|
|
|
|
def test_uses_get_multi(monkeypatch):
|
|
def breakdown(*a, **kw):
|
|
raise AssertionError('Expected use of get_multi')
|
|
|
|
get_multi_calls = []
|
|
|
|
old_get = MemoryStorage.get
|
|
|
|
def get_multi(self, hrefs):
|
|
hrefs = list(hrefs)
|
|
get_multi_calls.append(hrefs)
|
|
for href in hrefs:
|
|
item, etag = old_get(self, href)
|
|
yield href, item, etag
|
|
|
|
monkeypatch.setattr(MemoryStorage, 'get', breakdown)
|
|
monkeypatch.setattr(MemoryStorage, 'get_multi', get_multi)
|
|
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
item = Item(u'UID:1')
|
|
expected_href, etag = a.upload(item)
|
|
|
|
sync(a, b, {})
|
|
assert get_multi_calls == [[expected_href]]
|
|
|
|
|
|
def test_empty_storage_dataloss():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
a.upload(Item(u'UID:1'))
|
|
a.upload(Item(u'UID:2'))
|
|
status = {}
|
|
sync(a, b, status)
|
|
with pytest.raises(StorageEmpty):
|
|
sync(MemoryStorage(), b, status)
|
|
|
|
with pytest.raises(StorageEmpty):
|
|
sync(a, MemoryStorage(), status)
|
|
|
|
|
|
def test_no_uids():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
a.upload(Item(u'ASDF'))
|
|
b.upload(Item(u'FOOBAR'))
|
|
status = {}
|
|
sync(a, b, status)
|
|
assert items(a) == items(b) == {u'ASDF', u'FOOBAR'}
|
|
|
|
|
|
def test_changed_uids():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
href_a, etag_a = a.upload(Item(u'UID:A-ONE'))
|
|
href_b, etag_b = b.upload(Item(u'UID:B-ONE'))
|
|
status = {}
|
|
sync(a, b, status)
|
|
|
|
a.update(href_a, Item(u'UID:A-TWO'), etag_a)
|
|
sync(a, b, status)
|
|
|
|
|
|
def test_both_readonly():
|
|
a = MemoryStorage(read_only=True)
|
|
b = MemoryStorage(read_only=True)
|
|
assert a.read_only
|
|
assert b.read_only
|
|
status = {}
|
|
with pytest.raises(BothReadOnly):
|
|
sync(a, b, status)
|
|
|
|
|
|
def test_partial_sync_revert():
|
|
a = MemoryStorage(instance_name='a')
|
|
b = MemoryStorage(instance_name='b')
|
|
status = {}
|
|
a.upload(Item(u'UID:1'))
|
|
b.upload(Item(u'UID:2'))
|
|
b.read_only = True
|
|
|
|
sync(a, b, status, partial_sync='revert')
|
|
assert len(status) == 2
|
|
assert items(a) == {'UID:1', 'UID:2'}
|
|
assert items(b) == {'UID:2'}
|
|
|
|
sync(a, b, status, partial_sync='revert')
|
|
assert len(status) == 1
|
|
assert items(a) == {'UID:2'}
|
|
assert items(b) == {'UID:2'}
|
|
|
|
# Check that updates get reverted
|
|
a.items[next(iter(a.items))] = ('foo', Item('UID:2\nupdated'))
|
|
assert items(a) == {'UID:2\nupdated'}
|
|
sync(a, b, status, partial_sync='revert')
|
|
assert items(a) == {'UID:2\nupdated'}
|
|
sync(a, b, status, partial_sync='revert')
|
|
assert items(a) == {'UID:2'}
|
|
|
|
# Check that deletions get reverted
|
|
a.items.clear()
|
|
sync(a, b, status, partial_sync='revert', force_delete=True)
|
|
sync(a, b, status, partial_sync='revert', force_delete=True)
|
|
assert items(a) == {'UID:2'}
|
|
|
|
|
|
@pytest.mark.parametrize('sync_inbetween', (True, False))
|
|
def test_ident_conflict(sync_inbetween):
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
href_a, etag_a = a.upload(Item(u'UID:aaa'))
|
|
href_b, etag_b = a.upload(Item(u'UID:bbb'))
|
|
if sync_inbetween:
|
|
sync(a, b, status)
|
|
|
|
a.update(href_a, Item(u'UID:xxx'), etag_a)
|
|
a.update(href_b, Item(u'UID:xxx'), etag_b)
|
|
|
|
with pytest.raises(IdentConflict):
|
|
sync(a, b, status)
|
|
|
|
|
|
def test_moved_href():
|
|
'''
|
|
Concrete application: ppl_ stores contact aliases in filenames, which means
|
|
item's hrefs get changed. Vdirsyncer doesn't synchronize this data, but
|
|
also shouldn't do things like deleting and re-uploading to the server.
|
|
|
|
.. _ppl: http://ppladdressbook.org/
|
|
'''
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
href, etag = a.upload(Item(u'UID:haha'))
|
|
sync(a, b, status)
|
|
|
|
b.items['lol'] = b.items.pop('haha')
|
|
|
|
# The sync algorithm should prefetch `lol`, see that it's the same ident
|
|
# and not do anything else.
|
|
a.get_multi = blow_up # Absolutely no prefetch on A
|
|
# No actual sync actions
|
|
a.delete = a.update = a.upload = b.delete = b.update = b.upload = blow_up
|
|
|
|
sync(a, b, status)
|
|
assert len(status) == 1
|
|
assert items(a) == items(b) == {'UID:haha'}
|
|
assert status['haha'][1]['href'] == 'lol'
|
|
old_status = deepcopy(status)
|
|
|
|
# Further sync should be a noop. Not even prefetching should occur.
|
|
b.get_multi = blow_up
|
|
|
|
sync(a, b, status)
|
|
assert old_status == status
|
|
assert items(a) == items(b) == {'UID:haha'}
|
|
|
|
|
|
def test_bogus_etag_change():
|
|
'''Assert that sync algorithm is resilient against etag changes if content
|
|
didn\'t change.
|
|
|
|
In this particular case we test a scenario where both etags have been
|
|
updated, but only one side actually changed its item content.
|
|
'''
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
href_a, etag_a = a.upload(Item(u'UID:ASDASD'))
|
|
sync(a, b, status)
|
|
assert len(status) == len(list(a.list())) == len(list(b.list())) == 1
|
|
|
|
(href_b, etag_b), = b.list()
|
|
a.update(href_a, Item(u'UID:ASDASD'), etag_a)
|
|
b.update(href_b, Item(u'UID:ASDASD\nACTUALCHANGE:YES'), etag_b)
|
|
|
|
b.delete = b.update = b.upload = blow_up
|
|
|
|
sync(a, b, status)
|
|
assert len(status) == 1
|
|
assert items(a) == items(b) == {u'UID:ASDASD\nACTUALCHANGE:YES'}
|
|
|
|
|
|
def test_unicode_hrefs():
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
href, etag = a.upload(Item(u'UID:äää'))
|
|
sync(a, b, status)
|
|
|
|
|
|
class ActionIntentionallyFailed(Exception):
|
|
pass
|
|
|
|
|
|
def action_failure(*a, **kw):
|
|
raise ActionIntentionallyFailed()
|
|
|
|
|
|
class SyncMachine(RuleBasedStateMachine):
|
|
Status = Bundle('status')
|
|
Storage = Bundle('storage')
|
|
|
|
@rule(target=Storage,
|
|
flaky_etags=st.booleans(),
|
|
null_etag_on_upload=st.booleans())
|
|
def newstorage(self, flaky_etags, null_etag_on_upload):
|
|
s = MemoryStorage()
|
|
if flaky_etags:
|
|
def get(href):
|
|
old_etag, item = s.items[href]
|
|
etag = _random_string()
|
|
s.items[href] = etag, item
|
|
return item, etag
|
|
s.get = get
|
|
|
|
if null_etag_on_upload:
|
|
_old_upload = s.upload
|
|
_old_update = s.update
|
|
s.upload = lambda item: (_old_upload(item)[0], 'NULL')
|
|
s.update = lambda h, i, e: _old_update(h, i, e) and 'NULL'
|
|
|
|
return s
|
|
|
|
@rule(s=Storage, read_only=st.booleans())
|
|
def is_read_only(self, s, read_only):
|
|
assume(s.read_only != read_only)
|
|
s.read_only = read_only
|
|
|
|
@rule(s=Storage)
|
|
def actions_fail(self, s):
|
|
s.upload = action_failure
|
|
s.update = action_failure
|
|
s.delete = action_failure
|
|
|
|
@rule(s=Storage)
|
|
def none_as_etag(self, s):
|
|
_old_upload = s.upload
|
|
_old_update = s.update
|
|
|
|
def upload(item):
|
|
return _old_upload(item)[0], None
|
|
|
|
def update(href, item, etag):
|
|
_old_update(href, item, etag)
|
|
|
|
s.upload = upload
|
|
s.update = update
|
|
|
|
@rule(target=Status)
|
|
def newstatus(self):
|
|
return {}
|
|
|
|
@rule(storage=Storage,
|
|
uid=uid_strategy,
|
|
etag=st.text())
|
|
def upload(self, storage, uid, etag):
|
|
item = Item(u'UID:{}'.format(uid))
|
|
storage.items[uid] = (etag, item)
|
|
|
|
@rule(storage=Storage, href=st.text())
|
|
def delete(self, storage, href):
|
|
assume(storage.items.pop(href, None))
|
|
|
|
@rule(
|
|
status=Status,
|
|
a=Storage, b=Storage,
|
|
force_delete=st.booleans(),
|
|
conflict_resolution=st.one_of((st.just('a wins'), st.just('b wins'))),
|
|
with_error_callback=st.booleans(),
|
|
partial_sync=st.one_of((
|
|
st.just('ignore'), st.just('revert'), st.just('error')
|
|
))
|
|
)
|
|
def sync(self, status, a, b, force_delete, conflict_resolution,
|
|
with_error_callback, partial_sync):
|
|
assume(a is not b)
|
|
old_items_a = items(a)
|
|
old_items_b = items(b)
|
|
|
|
a.instance_name = 'a'
|
|
b.instance_name = 'b'
|
|
|
|
errors = []
|
|
|
|
if with_error_callback:
|
|
error_callback = errors.append
|
|
else:
|
|
error_callback = None
|
|
|
|
try:
|
|
# If one storage is read-only, double-sync because changes don't
|
|
# get reverted immediately.
|
|
for _ in range(2 if a.read_only or b.read_only else 1):
|
|
sync(a, b, status,
|
|
force_delete=force_delete,
|
|
conflict_resolution=conflict_resolution,
|
|
error_callback=error_callback,
|
|
partial_sync=partial_sync)
|
|
|
|
for e in errors:
|
|
raise e
|
|
except PartialSync:
|
|
assert partial_sync == 'error'
|
|
except ActionIntentionallyFailed:
|
|
pass
|
|
except BothReadOnly:
|
|
assert a.read_only and b.read_only
|
|
assume(False)
|
|
except StorageEmpty:
|
|
if force_delete:
|
|
raise
|
|
else:
|
|
assert not list(a.list()) or not list(b.list())
|
|
else:
|
|
items_a = items(a)
|
|
items_b = items(b)
|
|
|
|
assert items_a == items_b or partial_sync == 'ignore'
|
|
assert items_a == old_items_a or not a.read_only
|
|
assert items_b == old_items_b or not b.read_only
|
|
|
|
assert set(a.items) | set(b.items) == set(status) or \
|
|
partial_sync == 'ignore'
|
|
|
|
|
|
TestSyncMachine = SyncMachine.TestCase
|
|
|
|
|
|
@pytest.mark.parametrize('error_callback', [True, False])
|
|
def test_rollback(error_callback):
|
|
a = MemoryStorage()
|
|
b = MemoryStorage()
|
|
status = {}
|
|
|
|
a.items['0'] = ('', Item('UID:0'))
|
|
b.items['1'] = ('', Item('UID:1'))
|
|
|
|
b.upload = b.update = b.delete = action_failure
|
|
|
|
if error_callback:
|
|
errors = []
|
|
|
|
sync(a, b, status=status, conflict_resolution='a wins',
|
|
error_callback=errors.append)
|
|
|
|
assert len(errors) == 1
|
|
assert isinstance(errors[0], ActionIntentionallyFailed)
|
|
|
|
assert len(status) == 1
|
|
assert status['1']
|
|
else:
|
|
with pytest.raises(ActionIntentionallyFailed):
|
|
sync(a, b, status=status, conflict_resolution='a wins')
|