public async Task EnsuresNonNullArguments()
            {
                var client = new ObservableRepositoryBranchesClient(Substitute.For<IGitHubClient>());
                var teamsToRemove = new BranchProtectionTeamCollection() { "test" };

                Assert.Throws<ArgumentNullException>(() => client.DeleteProtectedBranchTeamRestrictions(null, "repo", "branch", teamsToRemove));
                Assert.Throws<ArgumentNullException>(() => client.DeleteProtectedBranchTeamRestrictions("owner", null, "branch", teamsToRemove));
                Assert.Throws<ArgumentNullException>(() => client.DeleteProtectedBranchTeamRestrictions("owner", "repo", null, teamsToRemove));
                Assert.Throws<ArgumentNullException>(() => client.DeleteProtectedBranchTeamRestrictions("owner", "repo", "branch", null));

                Assert.Throws<ArgumentNullException>(() => client.DeleteProtectedBranchTeamRestrictions(1, null, teamsToRemove));
                Assert.Throws<ArgumentNullException>(() => client.DeleteProtectedBranchTeamRestrictions(1, "branch", null));

                Assert.Throws<ArgumentException>(() => client.DeleteProtectedBranchTeamRestrictions("", "repo", "branch", teamsToRemove));
                Assert.Throws<ArgumentException>(() => client.DeleteProtectedBranchTeamRestrictions("owner", "", "branch", teamsToRemove));
                Assert.Throws<ArgumentException>(() => client.DeleteProtectedBranchTeamRestrictions("owner", "repo", "", teamsToRemove));

                Assert.Throws<ArgumentException>(() => client.DeleteProtectedBranchTeamRestrictions(1, "", teamsToRemove));
            }
            public void RequestsTheCorrectUrlWithRepositoryId()
            {
                var gitHubClient = Substitute.For<IGitHubClient>();
                var client = new ObservableRepositoryBranchesClient(gitHubClient);
                var teamsToRemove = new BranchProtectionTeamCollection() { "test" };

                client.DeleteProtectedBranchTeamRestrictions(1, "branch", teamsToRemove);

                gitHubClient.Repository.Branch.Received()
                    .DeleteProtectedBranchTeamRestrictions(1, "branch", teamsToRemove);
            }