public void test3()
 {
     Assert.AreEqual(14, BinaryOperations1.FlipBit(15, 1));
 }
 public void test1()
 {
     Assert.AreEqual(7, BinaryOperations1.FlipBit(15, 4));
 }
 public void test2()
 {
     Assert.AreEqual(1, BinaryOperations1.FlipBit(0, 1));
 }