public void DoesIsEmptyReturnTrueWhenStackIsEmpty()
        {
            ArrayTypedStack stack    = new ArrayTypedStack(3);
            bool            actual   = stack.IsEmpty();
            bool            expected = true;

            Assert.AreEqual(expected, actual);
        }
        public void DoesIsEmptyReturnFalseWhenStackIsNotEmpty()
        {
            ArrayTypedStack stack = new ArrayTypedStack(2);

            stack.Push(3);
            bool actualResult   = stack.IsEmpty();
            bool expectedResult = false;

            Assert.AreEqual(expectedResult, actualResult);
        }