public void GetAllStoreProductsID() { LinkedList <string> expected = new LinkedList <string>(); expected.AddLast("P1"); expected.AddLast("P2"); var find = handler.GetAllStoreProductsID("S1"); Assert.AreEqual(expected.Count, find.Length); string[] findResults = new string[find.Length]; find.CopyTo(findResults, 0); string[] expectedResults = new string[expected.Count]; expected.CopyTo(expectedResults, 0); for (int i = 0; i < findResults.Length; i++) { Assert.AreEqual(findResults[i], expectedResults[i]); } }