/// <summary>
/// Run the multiple operation many times which is enough to test performence
/// </summary>
/// <param name="multiplier"></param>
void testPerformance(IFastMultiplier multiplier)
{
const int repeatCount = 100000000;
// prevent compiler optimization
long sum = 0;
for (int i = 0; i < repeatCount; i++)
{
sum += multiplier.MultiplyBy7(i);
}
Assert.IsTrue(sum > 100);
}
/// <summary>
/// Check if way to multiply is correct
/// </summary>
/// <param name="multiplier"></param>
void testCorrect(IFastMultiplier multiplier)
{
Assert.AreEqual(7, multiplier.MultiplyBy7(1));
Assert.AreEqual(14, multiplier.MultiplyBy7(2));
}
