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_read_returns_new_instance():
db = StubDb()
rollback = StubRollback()
db.get.return_value = StubDbResult(qube.init(), key='zzz')
m = yield from FooModel.read(db, rollback, 'zzz')
assert_that(m, instance_of(FooModel))
