public void IsPingPong_NumberDivisibleByThreeAndFive_pingpong()
{
PingPong testPingPong = new PingPong();
Assert.AreEqual("ping-pong", testPingPong.PlayPingPong(15));
}
public void IsPingPong_NotNumberDivisibleByFive_pong()
{
PingPong testPingPong = new PingPong();
Assert.AreEqual("not-ping-pong", testPingPong.PlayPingPong(11));
}