public void FindsTheLongestSubsequenceOfEqualNumbers()
        {
            var numbers = new List <int> {
                12, 2, 2, 2, 3, 5, 9, 4, 4, 4, 4
            };

            var expected = new List <int> {
                4, 4, 4, 4
            };

            var actual = LongestSubsequence.FindsTheLongestSubsequenceOfEqualNumbers(numbers);

            CollectionAssert.AreEqual(expected, actual);
        }