public void RepeatTest() { IEnumerable <int> expected = new int[] { 1, 1, 2, 3, 1, 1, 2, 3, 1, 1, 2, 3, 1, 1, 2, 3 }; IEnumerable <int> actual = LinqTool.Repeat(new int[] { 1, 1, 2, 3 }, 4); Assert.IsTrue(expected.SequenceEqual(actual)); }