public Fixture Then_the_signature_is(string expected)
        {
            string actual = new HmacSha1().Sign(_signatureBaseString, _consumerSecret, _tokenSecret);

            return new YesNoFixture(expected == actual,
                "Invalid signature. Expected [" +  expected + "]. Got [" + actual + "].", 2
            );
        }
        public Fixture Then_we_can_connect()
        {
            var oAuthParameters = new OAuthParameters(
                _consumer.ConsumerKey,
                new TokenKey(string.Empty),
                "HMAC-SHA1",
                new DefaultTimestampSequence(),
                new DefaultNonceSequence(),
                string.Empty,
                "1.0"
            );

            var signatureBaseString =
                new SignatureBaseString(
                    new Request {
                        Url = new Uri("https://api.twitter.com/oauth/request_token"),
                        Verb = "GET"
                    },
                    oAuthParameters
                );

            var signature = new HmacSha1().Sign(signatureBaseString.Value, _consumer.Secret, null);

            oAuthParameters.SetSignature(signature);

            var header = new AuthorizationHeader(oAuthParameters, string.Empty);

            var req = (HttpWebRequest)WebRequest.Create("https://api.twitter.com/oauth/request_token");

            req.Headers.Add("Authorization", header.Value);

            var response = TInternet.Get(req);
            const HttpStatusCode expected = HttpStatusCode.OK;
            var actual = response.StatusCode;

            return new YesNoFixture(actual == expected, "Expected [" + expected +"]. Got [" +  actual+ "]", 2);
        }