def setUpClass(cls: TestCase) -> None: super().setUpClass() cls.pretender_boss = subprocess.Popen( [ "python", "-m", "pretenders.server.server", "--host", "127.0.0.1", "--port", "8888" ], stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, ) sleep(1) cls.mock_sentry = HTTPMock("127.0.0.1", 8888, name="mock_sentry")