public void Discount_less_then_10()
{
// arrange
IDiscountHelper target = getTestObject();
// act
decimal discount5 = target.ApplayDiscount(5);
decimal discount0 = target.ApplayDiscount(0);
//assert
Assert.AreEqual(5, discount5);
Assert.AreEqual(0, discount0);
}
public void Discount_between_10_And_100()
{
// Arrange
IDiscountHelper target = getTestObject();
//act
decimal TendollarDiscount = target.ApplayDiscount(10);
decimal HundredDollarDiscount = target.ApplayDiscount(100);
decimal FiftyDollarDiscount = target.ApplayDiscount(50);
//Assert
Assert.AreEqual(5, TendollarDiscount, "$10 test is wrong");
Assert.AreEqual(95, HundredDollarDiscount, "$100 test is wrong");
Assert.AreEqual(45, FiftyDollarDiscount, "$50 test is wrong");
}
public void Discount_negative_value()
{
// arrange
IDiscountHelper target = getTestObject();
// act
target.ApplayDiscount(-1);
}
public void Discount_above_100()
{
// Arrange
IDiscountHelper target = getTestObject();
decimal total = 200;
// act
var discountedTotal = target.ApplayDiscount(total);
// assert
Assert.AreEqual(total * 0.9M, discountedTotal);
}
public decimal ValueProducts(IEnumerable <Product> products)
{
return(_discounter.ApplayDiscount(products.Sum(p => p.Price)));
}