public async Task GetPlayListByIdShouldGetPlayList()
{
var playListId = 1;
var playList = new PlayList {
Id = playListId
};
_mixBLMock.Setup(x => x.GetPlayListByIDAsync(It.IsAny <int>())).Returns(Task.FromResult(playList));
var playListController = new PlayListController(_mixBLMock.Object);
var result = await playListController.GetPlaylistByIDAsync(playListId);
Assert.Equal(playListId, ((PlayList)((OkObjectResult)result).Value).Id);
_mixBLMock.Verify(x => x.GetPlayListByIDAsync(playListId));
}