public async Task GetAll_ReturnsAnIEnumerableOfEpisodeViewModels()
{
var mapper = CreateAutoMapper();
var episodeServiceMock = new Mock <IEpisodeService>();
episodeServiceMock.Setup(s => s.ListAllAsync())
.Returns(Task.FromResult(GetTestEpisodes()));
var controller = new EpisodeController(mapper, episodeServiceMock.Object);
var result = await controller.GetAll();
Assert.IsType <List <EpisodeViewModel> >(result);
}