public void ToEnumerableTest() { LList <int> list = new(11, new(22, new(33, null))); Assert.IsTrue(list.ToEnumerable().SequenceEqual(new[] { 11, 22, 33 })); Assert.IsTrue(list.ToEnumerableRec().SequenceEqual(new[] { 11, 22, 33 })); Assert.IsFalse(LListM.ToEnumerable <string>(null).Any()); Assert.IsFalse(LListM.ToEnumerableRec <string>(null).Any()); }