public void AddComment_Succeeds() { DateTime date = DateTime.Today; TimeOfDay timeOfDay = TimeOfDay.AVOND; int activityId = 1; int userId = 2; CommentDTO commentDTO = new CommentDTO() { Comment = "Dit was een zeer leuke activiteit" }; _dayActivityRepository.Setup(d => d.GetCustomDayActivity(date, timeOfDay, activityId)).Returns(_dummyDBContext.DayActivity1); ActionResult <Attendance> actionResult = _controller.AddComment(date, timeOfDay, activityId, userId, commentDTO); var response = actionResult?.Result as OkObjectResult; Attendance attendanceToEdit = response?.Value as Attendance; Assert.Equal(commentDTO.Comment, attendanceToEdit?.Comment); _dayActivityRepository.Verify(d => d.SaveChanges(), Times.Once()); }