public async Task GetAllFocusArea_WhenFocusAreasExist_ShouldReturnAllFocusAreas() { //Arrange var focusArea = new List <string> { "fa1", "fa2" }; _repository.Setup(p => p.Events.GetAllAsync()).ReturnsAsync(_events); var processor = new EventProcessor(_repository.Object); //Act var response = await processor.GetAllFocusArea(); //Assert Assert.NotNull(response); }