public void ApplyItemDiscountTotalRule_ValidDiscount(int numDevices, decimal amount, decimal expectedDiscount)
{
decimal discount = DiscountHelper.ApplyItemDiscountTotalRule(numDevices, amount);
Assert.Equal(expectedDiscount, discount);
}
public void ApplyItemDiscountTotalRule_NoDiscount(int numDevices, decimal amount)
{
decimal discount = DiscountHelper.ApplyItemDiscountTotalRule(numDevices, amount);
Assert.Equal(0.0m, discount);
}