public void GetCartItem_WhenExistingProductIdPassed_ReturnsRightCartItem()
{
//Arrange
var myDbContextMoq = new DbContextMock <ShoppingCartContext>(myDummyOptions);
myDbContextMoq.CreateDbSetMock(x => x.CartItems, new[]
{
new CartItem {
ProductId = 1, Price = 3, Quantity = 2
},
new CartItem {
ProductId = 2, Price = 2, Quantity = 5
}
});
CartItemService service = new CartItemService(myDbContextMoq.Object);
//Act
var result1 = service.GetCartItem(1);
var result2 = service.GetCartItem(2);
//Assert
Assert.Equal(2, result1.Quantity);
Assert.Equal(5, result2.Quantity);
}