public void Add_WithValidVideo_ShouldCallService()
{
// Arrange
var model = new VideoCreationBindingModel();
bool serviceCalled = false;
var mockRepository = new Mock <IAdminVideosService>();
mockRepository.Setup(repo => repo.AddVideoAsync(model))
.Callback(() => serviceCalled = true);
var userRepository = new Mock <IAdminUsersService>();
userRepository.Setup(repo => repo.GetAuthorsAsync())
.Callback(() => serviceCalled = true);
var controller = new VideosController(userRepository.Object, mockRepository.Object);
// Act
var result = controller.Add(model);
// Assert
Assert.IsTrue(serviceCalled);
}