def __new__(cls) -> "MongoDBClient":
if cls.__instance is None:
cls.__instance = object.__new__(cls)
app = get_current_app()
tzinfo = get_timezone()
cls.__instance.codec_options = CodecOptions(tz_aware=True,
tzinfo=tzinfo)
cls.__instance.mongodb = app.mongodb
return cls.__instance
def test_get_current_app():
_app = get_current_app()
assert _app == app