public void CreateTimelineEvent_Returns201Created_WhenValidObjectSubmitted() { mockRepo.Setup(repo => repo.GetTimelineEventById(1)).Returns( new TimelineEvent { Id = 1, Day = 4, Month = 11, Year = 2020, CreatedByUserId = 823, Event = "Agent Orange is Fired" } ); var controller = new TimelineController(mockRepo.Object, mapper); var result = controller.CreateTimelineEvent(new TimelineEventCreateDto { }); Assert.IsType <CreatedAtRouteResult>(result.Result); }