public async Task RequestsCorrectUrl()
            {
                var connection = Substitute.For<IApiConnection>();
                var client = new IssuesLabelsClient(connection);

                await client.GetForRepository("fake", "repo");

                connection.Received().GetAll<Label>(Arg.Is<Uri>(u => u.ToString() == "repos/fake/repo/labels"));
            }
            public async Task RequestsCorrectUrl()
            {
                var connection = Substitute.For <IApiConnection>();
                var client     = new IssuesLabelsClient(connection);

                await client.GetForRepository("fake", "repo");

                connection.Received().GetAll <Label>(Arg.Is <Uri>(u => u.ToString() == "repos/fake/repo/labels"));
            }