public void ReverseList_EmptyList_ShouldReturnNull() { ListNode node = null; var result = ReverseListImplementation.ReverseList(node); Assert.Null(result); }
public void ReverseList_OneNodeList_ShouldReturnOneNodeList() { var node = new ListNode(5); var result = ReverseListImplementation.ReverseList(node); Assert.Equal(5, result.val); Assert.Null(result.next); }
public void ReverseList_FromLeetCode_ShouldReturnReversedList() { var node = new ListNode(1); node.next = new ListNode(2); node.next.next = new ListNode(3); var expectedResult = new ListNode(3); expectedResult.next = new ListNode(2); expectedResult.next.next = new ListNode(1); var result = ReverseListImplementation.ReverseList(node); Assert.True(result.Equals(expectedResult) && expectedResult.Equals(result)); }