public void IsPing_PingDivisibleByFive_True()
{
PingPong testPingPong = new PingPong();
Assert.AreEqual(true, testPingPong.IsPing(25));
}
public void IsPingPong_NumberDivisibleByThree_True()
{
PingPong testPingPong = new PingPong();
Assert.AreEqual("ping", testPingPong.IsPing(15));
}