public void TopKFrequentTest2() { int[] nums = { 1, 2 }; int k = 2; int[] expected = { 1, 2 }; for (int i = 0; i < expected.Length; i++) { var result = new TopKFrequentElements().TopKFrequent(nums, k); if (!result.Contains(expected[i])) { Assert.Fail(); } } Assert.Pass(); }