public void ApplyTotalDiscountRule_ValidDiscount(int numDevices, decimal amount,
decimal expectedDiscount)
{
decimal discount = DiscountHelper.ApplyTotalDiscountRule(numDevices, amount);
Assert.Equal(expectedDiscount, discount);
}
public void ApplyTotalDiscountRule_NoDiscount(int numDevices, decimal amount)
{
decimal discount = DiscountHelper.ApplyTotalDiscountRule(numDevices, amount);
Assert.Equal(0.0m, discount);
}