public async Task EnsuresNonNullArguments()
            {
                var client = new ObservableOrganizationMembersClient(Substitute.For<IGitHubClient>());

                await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAll(null).ToTask());
                await Assert.ThrowsAsync<ArgumentException>(() => client.GetAll("").ToTask());
            }
            public void RequestsCorrectUrl()
            {
                var gitHubClient = Substitute.For<IGitHubClient>();
                var client = new ObservableOrganizationMembersClient(gitHubClient);

                client.GetAll("org");

                gitHubClient.Connection.Received(1).Get<List<User>>(
                    new Uri("orgs/org/members", UriKind.Relative), Args.EmptyDictionary, null);
            }
            public void RequestsCorrectUrl()
            {
                var gitHubClient = Substitute.For<IGitHubClient>();
                var client = new ObservableOrganizationMembersClient(gitHubClient);

                client.GetAll("org");

                gitHubClient.Connection.GetAsync<IReadOnlyList<User>>(
                    new Uri("orgs/org/members", UriKind.Relative), null, null);
            }
            public void RequestsCorrectUrlWithApiOptions()
            {
                var gitHubClient = Substitute.For<IGitHubClient>();
                var client = new ObservableOrganizationMembersClient(gitHubClient);

                var options = new ApiOptions
                {
                    PageCount = 1,
                    StartPage = 1,
                    PageSize = 1
                };

                client.GetAll("org", options);

                gitHubClient.Connection.Received(1).Get<List<User>>(
                    new Uri("orgs/org/members", UriKind.Relative), Arg.Is<IDictionary<string, string>>(d => d.Count == 2), null);
            }
            public void TwoFactorFilterRequestTheCorrectUrlWithApiOptions()
            {
                var client = Substitute.For<IGitHubClient>();
                var orgMembersClient = new ObservableOrganizationMembersClient(client);

                var options = new ApiOptions
                {
                    PageCount = 1,
                    StartPage = 1,
                    PageSize = 1
                };

                orgMembersClient.GetAll("org", OrganizationMembersFilter.TwoFactorAuthenticationDisabled, options);

                client.Connection.Received(1).Get<List<User>>(
                    new Uri("orgs/org/members?filter=2fa_disabled", UriKind.Relative), Arg.Is<IDictionary<string, string>>(d => d.Count == 2), null);
            }
            public async Task EnsuresNonNullArguments()
            {
                var client = new ObservableOrganizationMembersClient(Substitute.For<IGitHubClient>());

                Assert.Throws<ArgumentNullException>(() => client.GetAll(null));

                Assert.Throws<ArgumentNullException>(() => client.GetAll(null, ApiOptions.None));
                Assert.Throws<ArgumentNullException>(() => client.GetAll("org", null));

                Assert.Throws<ArgumentNullException>(() => client.GetAll(null, OrganizationMembersFilter.All));
                Assert.Throws<ArgumentNullException>(() => client.GetAll(null, OrganizationMembersFilter.All, ApiOptions.None));

                Assert.Throws<ArgumentNullException>(() => client.GetAll("org", OrganizationMembersFilter.All, null));
                Assert.Throws<ArgumentNullException>(() => client.GetAll(null, OrganizationMembersFilter.All, OrganizationMembersRole.Admin));

                Assert.Throws<ArgumentNullException>(() => client.GetAll(null, OrganizationMembersFilter.All, OrganizationMembersRole.Admin, ApiOptions.None));
                Assert.Throws<ArgumentNullException>(() => client.GetAll("org", OrganizationMembersFilter.All, OrganizationMembersRole.Admin, null));

                Assert.Throws<ArgumentException>(() => client.GetAll(""));
                Assert.Throws<ArgumentException>(() => client.GetAll("", ApiOptions.None));
                Assert.Throws<ArgumentException>(() => client.GetAll("", OrganizationMembersFilter.All));
                Assert.Throws<ArgumentException>(() => client.GetAll("", OrganizationMembersFilter.All, OrganizationMembersRole.Admin));
                Assert.Throws<ArgumentException>(() => client.GetAll("", OrganizationMembersFilter.All, OrganizationMembersRole.Admin, ApiOptions.None));
            }
            public void TwoFactorFilterPlusMemberRoleRequestTheCorrectUrlWithApiOptions()
            {
                var client = Substitute.For<IGitHubClient>();
                var orgMembersClient = new ObservableOrganizationMembersClient(client);

                var options = new ApiOptions
                {
                    PageCount = 1,
                    StartPage = 1,
                    PageSize = 1
                };

                orgMembersClient.GetAll("org", OrganizationMembersFilter.TwoFactorAuthenticationDisabled, OrganizationMembersRole.Member, options);

                client.Connection.Received().Get<List<User>>(Arg.Is<Uri>(u => u.ToString() == "orgs/org/members?filter=2fa_disabled&role=member"), Arg.Is<IDictionary<string, string>>(d => d.Count == 2), null);
            }