public async Task FailsToCreateAuthorizationRequest_ResponseType_ContainsOtherValuesAlongWithNone() { // Arrange var parameters = new Dictionary <string, string[]> { [OpenIdConnectParameterNames.State] = new[] { "state" }, [OpenIdConnectParameterNames.ClientId] = new[] { "a" }, [OpenIdConnectParameterNames.RedirectUri] = new[] { "http://www.example.com/callback" }, [OpenIdConnectParameterNames.ResponseType] = new[] { "code none" } }; var expectedError = new AuthorizationRequestError(ProtocolErrorProvider.ResponseTypeNoneNotAllowed(), null, null); expectedError.Message.State = "state"; var factory = CreateAuthorizationRequestFactory(); // Act var result = await factory.CreateAuthorizationRequestAsync(parameters); // Assert Assert.False(result.IsValid); Assert.Equal(expectedError, result.Error, IdentityServiceErrorComparer.Instance); Assert.Equal("http://www.example.com/callback", result.Error.RedirectUri); Assert.Equal(OpenIdConnectResponseMode.Fragment, result.Error.ResponseMode); }