def test_forward(self):
        return self._testDataForward(
            200, b"OK", [(b"Foo", [b"bar", b"baz"])], b"Some data\r\n")
When connected to the server, L{ProxyClient} should send the saved
dataset/ETHPy150Open twisted/twisted/twisted/web/test/test_proxy.py/ProxyClientTests.test_forward