public void TopExceptionTest()
 {
     ArrayStack myList = new ArrayStack();
     myList.Top();
 }
 public void TopTest()
 {
     ArrayStack myList = new ArrayStack();
     myList.Push(12);
     Assert.AreEqual(12, myList.Top());
 }
 public void TopAndPopTest()
 {
     ArrayStack myList = new ArrayStack();
     myList.Push(123);
     Assert.AreEqual(123, myList.Top());
     myList.Pop();
     Assert.AreEqual(true, myList.IsEmpty());
 }