module = importlib.import_module(name)
for name, cls in module.__dict__.items():
if not isinstance(cls, type):
continue
if not issubclass(cls, unittest.TestCase):
continue
module = importlib.import_module(name)
for name, cls in module.__dict__.items():
if not isinstance(cls, type):
continue
if not issubclass(cls, unittest.TestCase):
continue