public void Pass_Throungh_Variable_Discount()
{
// Arrange
Mock <IDiscountHelper> mock = new Mock <IDiscountHelper>();
mock.Setup(m => m.ApplyDiscount(It.IsAny <decimal>()))
.Returns <decimal>(total => total);
mock.Setup(m => m.ApplyDiscount(It.Is <decimal>(v => v == 0)))
.Throws <System.ArgumentOutOfRangeException>();
mock.Setup(m => m.ApplyDiscount(It.Is <decimal>(v => v > 100)))
.Returns <decimal>(total => total * 0.9M);
mock.Setup(m => m.ApplyDiscount(It.IsInRange <decimal>(10, 100, Range.Inclusive))).Returns <decimal>(total => total - 5);
var target = new LinqValueCalculator(mock.Object);
// Act
decimal doolars100 = target.ValueProduct(CreateNewProductsSetPrice(100));
decimal dollars0 = target.ValueProduct(CreateNewProductsSetPrice(0));
decimal dollars10 = target.ValueProduct(CreateNewProductsSetPrice(10));
decimal dollars500 = target.ValueProduct(CreateNewProductsSetPrice(500));
decimal dollars5 = target.ValueProduct(CreateNewProductsSetPrice(5));
// Assert
Assert.AreEqual(95, doolars100, "fail100$");
Assert.AreEqual(0, dollars0, "exeption 0$");
Assert.AreEqual(5, dollars10, "fail 10$");
Assert.AreEqual(5, dollars5, "fail 5$");
Assert.AreEqual(500, dollars500, "fail 500$");
target.ValueProduct(CreateNewProductsSetPrice(0));
}
public void Sum_Products_Correctly()
{
// Arrange
Mock <IDiscountHelper> mock = new Mock <IDiscountHelper>();
mock.Setup(m => m.ApplyDiscount(It.IsAny <decimal>())).Returns <decimal>(total => total);
var target = new LinqValueCalculator(mock.Object);
// Act
var result = target.ValueProduct(products);
// Assert
Assert.AreEqual(products.Sum(e => e.Price), result);
}
