test_app_v4.py

# First test with the default port, then test using a fixed port
# number.
@pytest.fixture(scope="module", params=[None, 9999])
def app(request):
    app = App(port=request.param)
    print("Starting app")
    app.start()
    yield app
    print("Stopping app")
    app.stop()


@pytest.mark.parametrize("method", ["GET", "PUT", "POST"])
def test_app(app, method):
    """Test making an HTTP request to my app."""
    rsp = requests.request(method, f"{app.listen_addr}/hello")
    assert rsp.status_code == 200
    assert rsp.text == 'Hello, "/hello"'