public void CartManger_Calculate_Total_Value_And_Quantity_Works_Correctly()
{
List <CartItem> mySession = new List <CartItem>();
Mock <ISessionManager> mockSession = new Mock <ISessionManager>();
Mock <ISongRepository> mockRepository = new Mock <ISongRepository>();
mockSession.Setup(x => x.Set <List <CartItem> >(It.IsAny <string>(),
It.IsAny <List <CartItem> >())).Callback((string e, List <CartItem> s) => mySession = s);
mockSession.Setup(x => x.Get <List <CartItem> >(It.IsAny <string>())).Returns(mySession);
mockRepository.Setup(x => x.Songs).Returns(new Song[] { new Song()
{
SongId = 1, NameSong = "Test1", Price = 20
},
new Song()
{
SongId = 2, NameSong = "Test2", Price = 30
},
new Song()
{
SongId = 3, NameSong = "Test3", Price = 40
},
new Song()
{
SongId = 4, NameSong = "Test4", Price = 50
} });
CartManager target = new CartManager(mockSession.Object, mockRepository.Object);
target.Add(1);
target.Add(2);
target.Add(1);
target.Add(3);
Assert.AreEqual(110, target.CalculateTotalValue());
Assert.AreEqual(4, target.CalculateTotalQuantity());
}