public void Swap2ElementsLI() { // arrange var head = new ListNode(1) { Next = new ListNode(2) }; var expectedHead = new ListNode(2) { Next = new ListNode(1) }; // act ListNode newHead = SwapNodesInPairs.SwapPairs(head); // assert ListNode expectedNode = expectedHead, foundNode = newHead; while (expectedNode != null && foundNode != null) { Assert.AreEqual(expectedNode.Val, foundNode.Val); expectedNode = expectedNode.Next; foundNode = foundNode.Next; } Assert.IsNull(expectedNode); // both of them should be null Assert.IsNull(foundNode); }
public void SwapNodesInPairsTestCase4() { var list = CommonHelpers.GetLinkedListFromArray(new[] { 1, 2, 3 }); var result = SwapNodesInPairs.SwapPairs(list).ValuesToFlatList(); result.SequenceEqual(new[] { 2, 1, 3 }).Should().BeTrue(); }
public void Given_list_node_When_swap_Then_return() { ListNode node = new ListNode(1) { next = new ListNode(2) { next = new ListNode(3) { next = new ListNode(4) } } }; var result = SwapNodesInPairs.SwapPairs(node); Assert.AreEqual(2, result.val); Assert.AreEqual(1, result.next.val); Assert.AreEqual(4, result.next.next.val); Assert.AreEqual(3, result.next.next.next.val); }
public void SwapNodesInPairsTestCase2() { var result = SwapNodesInPairs.SwapPairs(null); result.Should().BeNull(); }