public async Task ShouldCreateAssessment() { _assessmentValidator.Setup(u => u.AssessmentDurationIsGreaterThanZero(_assessmentRequestModel)) .Returns(true); _assessmentRepo.Setup(u => u.CreateAssessmentAsync(_assessmentRequestModel, userId)) .Returns(() => Task.FromResult(_assessmentResponseModel)); var response = await _assessmentManager.CreateAssessment(_assessmentRequestModel, userId); Assert.NotNull(response.Id); }