def test_read_queues_rollback():
db = StubDb()
rollback = StubRollback()
qa = qube.init({'test': set()})
qb = qube.init({'test': set()})
qube.apply_op(qa, ('add', 'test', 'abc', 'tx0'))
qube.apply_op(qb, ('add', 'test', 'abc', 'tx0'))
qube.apply_op(qa, ('rem', 'test', 'abc', 'tx123'))
qube.apply_op(qa, ('add', 'test', 'def', 'tx456'))
qube.apply_op(qb, ('rem', 'test', 'abc', 'tx789'))
def doraise(a, b):
raise riak.Conflict('the_vclock',
'x/zzz',
[StubDbResult(qube.to_json(qa)),
StubDbResult(qube.to_json(qb))])
db.get.side_effect = doraise
m = yield from FooModel.read(db, rollback, 'zzz')
assert_that(rollback.queue, called_once_with('bar', 'abc', 'tx789'))
def test_read_performs_rollback_with_siblings():
db = StubDb()
rollback = StubRollback()
rollback.txs = ('tx123', 'tx456')
qa = qube.init({'test': set()})
qb = qube.init({'test': set()})
qube.apply_op(qa, ('add', 'test', 'abc', 'tx0'))
qube.apply_op(qa, ('add', 'test', 'ghi', 'tx456'))
qube.apply_op(qb, ('add', 'test', 'abc', 'tx0'))
qube.apply_op(qb, ('add', 'test', 'def', 'tx123'))
qube.apply_op(qb, ('add', 'test', 'jkl', 'tx789'))
def doraise(a, b):
raise riak.Conflict('the_vclock',
'x/zzz',
[StubDbResult(qube.to_json(qa)),
StubDbResult(qube.to_json(qb))])
db.get.side_effect = doraise
m = yield from FooModel.read(db, rollback, 'zzz')
assert_that(m.qube['journal'], has_length(2))
assert_that(m.qube['data'], has_entry('test', {'abc', 'jkl'}))
assert_that(db.save, called_once_with('foo_bucket',
'zzz',
has_key('data')))
def test_read_merges_siblings():
db = StubDb()
rollback = StubRollback()
qa = qube.init({'test': set()})
qb = qube.init({'test': set()})
qube.apply_op(qa, ('add', 'test', 'abc', 'tx0'))
qube.apply_op(qb, ('add', 'test', 'abc', 'tx0'))
qube.apply_op(qa, ('add', 'test', 'def', 'tx123'))
qube.apply_op(qb, ('add', 'test', 'ghi', 'tx456'))
def doraise(a, b):
raise riak.Conflict('the_vclock',
'x/zzz',
[StubDbResult(qube.to_json(qa)),
StubDbResult(qube.to_json(qb))])
db.get.side_effect = doraise
m = yield from FooModel.read(db, rollback, 'zzz')
assert_that(m, instance_of(FooModel))
assert_that(m.qube['data'], has_entry('test', {'abc', 'def', 'ghi'}))
def test_threeway_merge():
qa = qube.init({'name': 'zoidberg', 'number': 5, 'value': 10})
qube.apply_op(qa, ('change', 'number', (5, 6), 'tx001'))
qb = qube.from_json(qube.to_json(qa))
qc = qube.from_json(qube.to_json(qa))
qube.apply_op(qa, ('change', 'name', ('zoidberg', 'bob'), 'tx002'))
qube.apply_op(qb, ('change', 'number', (6, 7), 'tx003'))
qube.apply_op(qc, ('change', 'value', (10, 9), 'tx004'))
error, watch = track_error()
m = qube.merge(qa, qb, qc, error=watch)
assert_that(m, has_entry('sequence', 4))
assert_that(m, has_entry('data', has_entry('name', 'bob')))
assert_that(m, has_entry('data', has_entry('number', 7)))
assert_that(m, has_entry('data', has_entry('value', 9)))
assert_that(error, has_length(0))
def test_step_merge_bside():
qa = qube.init({'name': 'zoidberg', 'number': 5, 'value': 10})
qube.apply_op(qa, ('change', 'number', (5, 6), 'tx001'))
qb = qube.from_json(qube.to_json(qa))
qube.apply_op(qa, ('change', 'name', ('zoidberg', 'bob'), 'tx002'))
qube.apply_op(qb, ('change', 'number', (6, 7), 'tx004'))
qc = qube.from_json(qube.to_json(qb))
qube.apply_op(qc, ('change', 'value', (10, 9), 'tx004'))
pprint(qa)
pprint(qb)
pprint(qc)
error, watch = track_error()
ma = qube.merge(qa, qb, error=watch)
assert_that(error, has_length(0))
assert_that(ma, has_entry('sequence', 3))
assert_that(ma, has_entry('data', has_entry('name', 'bob')))
assert_that(ma, has_entry('data', has_entry('number', 7)))
assert_that(ma, has_entry('data', has_entry('value', 10)))
print('---')
pprint(ma)
pprint(qc)
error, watch = track_error()
mb = qube.merge(ma, qc, error=watch)
assert_that(error, has_length(0))
assert_that(mb, has_entry('sequence', 4))
assert_that(mb, has_entry('data', has_entry('name', 'bob')))
assert_that(mb, has_entry('data', has_entry('number', 7)))
assert_that(mb, has_entry('data', has_entry('value', 9)))
def test_read_performs_rollback():
db = StubDb()
rollback = StubRollback()
rollback.txs = ('tx123',)
qa = qube.init({'test': set()})
qube.apply_op(qa, ('add', 'test', 'abc', 'tx0'))
qube.apply_op(qa, ('add', 'test', 'def', 'tx123'))
qube.apply_op(qa, ('add', 'test', 'ghi', 'tx456'))
db.get.return_value = StubDbResult(qube.to_json(qa), key='zzz')
m = yield from FooModel.read(db, rollback, 'zzz')
assert_that(m.qube['journal'], has_length(2))
assert_that(m.qube['data'], has_entry('test', {'abc', 'ghi'}))
assert_that(db.save, called_once_with('foo_bucket',
'zzz',
has_key('data')))
def change_room(self, key, txid):
qube.apply_op(self.qube, ('change', 'room', (self.room, key), txid))
def remove_occupant(self, occupant, txid):
qube.apply_op(self.qube, ('rem', 'occupants', occupant, txid))