public async void Test_GivenAUser_WhenRespondToTwoFactorChallenge_ThenResponseIsNotAltered() { var authFlowResponse = new AuthFlowResponse("sessionId", null, ChallengeNameType.SMS_MFA, null, null); userStoreMock.Setup(mock => mock.RespondToTwoFactorChallengeAsync(It.IsAny <CognitoUser>(), It.IsAny <string>(), It.IsAny <ChallengeNameType>(), It.IsAny <string>(), It.IsAny <CancellationToken>())).Returns(Task.FromResult(authFlowResponse)).Verifiable(); var output = await userManager.RespondToTwoFactorChallengeAsync(GetCognitoUser(), "2FACODE", "SessionId").ConfigureAwait(false); Assert.Equal(authFlowResponse, output); userStoreMock.Verify(); }