public async Task DisapprovePullRequest_ShouldCallCorrectUrlAndMethod()
        {
            var result = _restClient
                         .Capture()
                         .Args <IRestRequest, IRestResponse>((s, req) => s.ExecuteTaskAsync(req), MockRepository.GenerateMock <IRestResponse>());

            await _sut.DisapprovePullRequest("repoName", "owner", 1);

            Assert.AreEqual(1, result.CallCount);

            var args = result.Args[0];

            Assert.AreEqual("repositories/owner/repoName/pullrequests/1/approve", args.Resource);
            Assert.AreEqual(Method.DELETE, args.Method);
        }