public async Task Delete_IdValid_RemovedFromDatabaseAndRedirectsToListAction()
{
// Arrange
var mockService = new Mock <IDifficultyService>();
DifficultyController controller = new DifficultyController(mockService.Object);
var difficultyListViewModel = new DifficultyCreateViewModel {
ID = 1
};
// Act
var result = await controller.Delete(difficultyListViewModel);
// Assert
var redirectToActionResult = Assert.IsType <RedirectToActionResult>(result);
Assert.Equal("Difficulty", redirectToActionResult.ControllerName);
Assert.Equal("Create", redirectToActionResult.ActionName);
mockService.Verify(service => service.RemoveDifficulty(It.Is <int?>(i => i == 1)), Times.Once);
}