public void DFSBinarySearchTreeInOrderIterativeTest() { var binarySearchTree = new BinarySearchTreeKey(); binarySearchTree.Add("4"); binarySearchTree.Add("2"); binarySearchTree.Add("6"); binarySearchTree.Add("1"); binarySearchTree.Add("3"); binarySearchTree.Add("5"); binarySearchTree.Add("7"); Assert.Equal(new [] { "1", "2", "3", "4", "5", "6", "7" }, DFS.DFSBinarySearchTreeInOrderIterative(binarySearchTree.Root)); }