public void Discount_Negative_Total()
{
//arrange
Discount.IDiscountHelper target = getTestObject();
//act
target.ApplyDiscount(-1);
}
public void Discount_Above_100()
{
//arrange
Discount.IDiscountHelper target = getTestObject();
decimal total = 200;
//act
var discountedTotal = target.ApplyDiscount(total);
//assert
Assert.AreEqual(total * 0.9M, discountedTotal);
}
public void Discount_Less_Than_10()
{
//arrange
Discount.IDiscountHelper target = getTestObject();
//act
decimal discount5 = target.ApplyDiscount(5);
decimal discount0 = target.ApplyDiscount(0);
//assert
Assert.AreEqual(5, discount5);
Assert.AreEqual(0, discount0);
}
public void Discount_Between_10_And_100()
{
//arrange
Discount.IDiscountHelper target = getTestObject();
//act
decimal TenDollarDiscount = target.ApplyDiscount(10);
decimal HundredDollarDiscount = target.ApplyDiscount(100);
decimal FiftyDollarDiscount = target.ApplyDiscount(50);
//assert
Assert.AreEqual(5, TenDollarDiscount, "$10 discount is wrong");
Assert.AreEqual(95, HundredDollarDiscount, "$100 discount is wrong");
Assert.AreEqual(45, FiftyDollarDiscount, "$50 discount is wrong");
}
public LinqValueCalculator(Discount.IDiscountHelper discountParam)
{
discounter = discountParam;
System.Diagnostics.Debug.WriteLine(string.Format("Instance {0} created", ++counter));
}