public void Wins_only_on_a_particular_single_number()
 {
     SingleNumberWinningStrategy strategy = new SingleNumberWinningStrategy(2);
     Assert.IsFalse(strategy.WinsOn(0));
     Assert.IsFalse(strategy.WinsOn(1));
     Assert.IsTrue(strategy.WinsOn(2));
     for (int i = 3; i < 37; i++)
         Assert.IsFalse(strategy.WinsOn(i));
 }