public void Removes_Last_Item()
        {
            var stack = new MyStack <int> {
                1, 2, 3, 4, 5
            };
            int expectedLength = 4;

            int item         = stack.GetAndRemove();
            int actualLength = stack.Count;

            Assert.IsFalse(stack.Contains(item));
            Assert.AreEqual(expectedLength, actualLength);
        }