swh_scheduler = <swh.scheduler.backend.SchedulerBackend object at 0x7f198cec0b00> def test_types(swh_scheduler) -> None: """Checks all methods of SchedulerInterface are implemented by this backend, and that they have the same signature.""" # Create an instance of the protocol (which cannot be instantiated # directly, so this creates a subclass, then instantiates it) interface = type("_", (SchedulerInterface,), {})() missing_methods = [] for meth_name in dir(interface): if meth_name.startswith("_"): continue interface_meth = getattr(interface, meth_name) try: concrete_meth = getattr(swh_scheduler, meth_name) except AttributeError: missing_methods.append(meth_name) continue expected_signature = inspect.signature(interface_meth) actual_signature = inspect.signature(concrete_meth) > assert expected_signature == actual_signature, meth_name E AssertionError: origin_visit_info_get E assert <Signature (u...it_type: str)> == <Signature (u...fo, NoneType]> E +<Signature (url: str, visit_type: str)> E -<Signature (url: str, visit_type: str) -> Union[swh.scheduler.model.OriginVisitInfo, NoneType]> .tox/py3/lib/python3.7/site-packages/swh/scheduler/tests/test_init.py:69: AssertionError