def test_create_should_raise_error_on_non_pymongo_client():
client = mongomock.MongoClient()
with pytest.raises(ValueError):
MongoObserver.create(client=client)
def test_create_should_raise_error_on_both_client_and_url():
real_client = pymongo.MongoClient()
with pytest.raises(ValueError,
match="Cannot pass both a client and a url."):
MongoObserver.create(client=real_client, url="mymongourl")
def mongo_obs():
db = mongomock.MongoClient().db
runs = db.runs
fs = mock.MagicMock()
return MongoObserver(runs, fs)