def test_find_element_iterative(self):
print("TEST SEARCH ELEMENT - ITERATIVE")
print("===========================================================")
SampleBTree.print_9()
print("Element to search: 15.", end=" ")
found = find_element_iterative(self.root, 15)
self.assertEqual(True, found)
print("Element found: {0}".format(found), end="\n")
print("Element to search: 34.", end=" ")
found = find_element_iterative(self.root, 34)
self.assertEqual(False, found)
print("Element found: {0}".format(found), end="\n")
print("Element to search: 10.", end=" ")
found = find_element_iterative(self.root, 10)
self.assertEqual(True, found)
print("Element found: {0}".format(found), end="\n")
print("Element to search: 11.", end=" ")
found = find_element_iterative(self.root, 11)
self.assertEqual(True, found)
print("Element found: {0}".format(found), end="\n")
print("Element to search: 63.", end=" ")
found = find_element_iterative(self.root, 63)
self.assertEqual(False, found)
print("Element found: {0}".format(found), end=" ")
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n")
def test_find_deepest_node(self):
print("TEST FIND DEEPEST NODE OF A BINARY TREE")
print("===========================================================")
SampleBTree.print_9()
node = find_deepest_node(self.root)
self.assertEqual(4, node.data)
print("Deepest node = {0}".format(node.data), end=" ")
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n")
def test_find_leaf_nodes(self):
print("TEST FIND LEAF NODES IN A BINARY TREE")
print("===========================================================")
SampleBTree.print_9()
leaf_count = find_leaf_nodes(self.root)
print("Count of leaf nodes = {0}".format(leaf_count), end=" ")
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_find_maximum_element_iterative(self):
print("TEST MAXIMUM ELEMENT - ITERATIVE")
print("===========================================================")
SampleBTree.print_9()
maximum = find_maximum_element_iterative(self.root)
self.assertEqual(62, maximum)
print("Maximum element: " + str(maximum), end=" ")
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_insert_into_tree(self):
print("TEST REVERSE LEVEL ORDER")
print("===========================================================")
SampleBTree.print_9()
print("Reverse level order traversal: ", end=" ")
reverse_level_order(self.root)
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_insert_into_tree(self):
print("TEST INSERT INTO BINARY TREE")
print("===========================================================")
SampleBTree.print_9()
print("Inorder traversal before insertion : ", end=" ")
inorder(self.root)
print()
insert_into_binary_tree(self.root, 12)
print("Inorder traversal after inserting 12: ", end=" ")
inorder(self.root)
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n")
def test_find_height_recursive(self):
print("TEST FIND HEIGHT OF A BINARY TREE - RECURSIVE")
print("===========================================================")
SampleBTree.print_9()
height = find_height_recursive(self.root)
self.assertEqual(5, height)
print("Height of given tree = {0}".format(height), end="\n\n")
self.root = BTreeNode(10)
print("Tree to operate: ")
print(" " * 20 + "10\n")
height = find_height_recursive(self.root)
self.assertEqual(1, height)
print("Height of given tree = {0}".format(height), end=" ")
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n")
def test_find_height_iterative(self):
print("TEST FIND HEIGHT OF A BINARY TREE - ITERATIVE")
print("===========================================================")
SampleBTree.print_9()
size = find_height_iterative(self.root)
self.assertEqual(5, size)
print("Height of given tree = {0}".format(size), end="\n\n")
self.root = BTreeNode(10)
print("Tree to operate: ")
print(" " * 20 + "10\n")
size = find_height_iterative(self.root)
self.assertEqual(1, size)
print("Height of given tree = {0}".format(size), end=" ")
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n")
def test_find_size_recursive(self):
print("TEST FIND SIZE OF A BINARY TREE - RECURSIVE")
print("===========================================================")
SampleBTree.print_9()
size = find_size_recursive(self.root)
self.assertEqual(9, size)
print("Size of given tree = {0}".format(size), end="\n\n")
self.root = BTreeNode(10)
print("Tree to operate: ")
print(" " * 20 + "10\n")
size = find_size_recursive(self.root)
self.assertEqual(1, size)
print("Size of given tree = {0}".format(size), end=" ")
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def create_tree(self):
self.root = SampleBTree.create_9()
def test_inorder_iterative(self):
print("TEST INORDER TRAVERSAL OF A BINARY TREE - ITERATIVE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
print("Inorder traversal:", end=" ")
inorder_iterative(root)
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
print("Inorder traversal:", end=" ")
inorder_iterative(root)
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
print("Inorder traversal:", end=" ")
inorder_iterative(root)
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
print("Inorder traversal:", end=" ")
inorder_iterative(root)
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
print("Inorder traversal:", end=" ")
inorder_iterative(root)
print("\n\n")
root = SampleBTree.create_left_weighted()
SampleBTree.print_left_weighted()
print("Inorder traversal:", end=" ")
inorder_iterative(root)
print("\n\n")
root = SampleBTree.create_right_weighted()
SampleBTree.print_right_weighted()
print("Inorder traversal:", end=" ")
inorder_iterative(root)
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_postorder_recursive(self):
print("TEST POSTORDER TRAVERSAL OF A BINARY TREE - RECURSIVE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
print("Postorder traversal:", end=" ")
postorder_iterative(root)
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
print("Postorder traversal:", end=" ")
postorder_iterative(root)
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
print("Postorder traversal:", end=" ")
postorder_iterative(root)
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
print("Postorder traversal:", end=" ")
postorder_iterative(root)
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
print("Postorder traversal:", end=" ")
postorder_iterative(root)
print("\n\n")
root = SampleBTree.create_left_weighted()
SampleBTree.print_left_weighted()
print("Postorder traversal:", end=" ")
postorder_iterative(root)
print("\n\n")
root = SampleBTree.create_right_weighted()
SampleBTree.print_right_weighted()
print("Postorder traversal:", end=" ")
postorder_iterative(root)
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_delete_node(self):
print("TEST DELETE NODE OF A BINARY TREE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
node_to_delete = 15
print("Node to delete: {0}".format(node_to_delete))
print("Inorder traversal before delete:", end=" ")
inorder(root)
print()
delete_node(root, node_to_delete)
print("Inorder traversal after delete:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
node_to_delete = 67
print("Node to delete: {0}".format(node_to_delete))
print("Inorder traversal before delete:", end=" ")
inorder(root)
print()
delete_node(root, node_to_delete)
print("Inorder traversal after delete:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
node_to_delete = 86
print("Node to delete: {0}".format(node_to_delete))
print("Inorder traversal before delete:", end=" ")
inorder(root)
print()
delete_node(root, node_to_delete)
print("Inorder traversal after delete:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
node_to_delete = 9
print("Node to delete: {0}".format(node_to_delete))
print("Inorder traversal before delete:", end=" ")
inorder(root)
print()
delete_node(root, node_to_delete)
print("Inorder traversal after delete:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
node_to_delete = 8
print("Node to delete: {0}".format(node_to_delete))
print("Inorder traversal before delete:", end=" ")
inorder(root)
print()
delete_node(root, node_to_delete)
print("Inorder traversal after delete:", end=" ")
inorder(root)
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_diameter(self):
print("TEST PATH WITH SUM EXISTS IN A BINARY TREE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
sum = 14
path_exists = has_path_with_sum(root, sum)
self.assertEqual(False, path_exists)
print("Path with sum {0} exists: {1}".format(sum, path_exists))
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
sum = 90
path_exists = has_path_with_sum(root, sum)
self.assertEqual(True, path_exists)
print("Path with sum {0} exists: {1}".format(sum, path_exists))
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
sum = 45
path_exists = has_path_with_sum(root, sum)
self.assertEqual(False, path_exists)
print("Path with sum {0} exists: {1}".format(sum, path_exists))
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
sum = 34
path_exists = has_path_with_sum(root, sum)
self.assertEqual(True, path_exists)
print("Path with sum {0} exists: {1}".format(sum, path_exists))
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
sum = 78
path_exists = has_path_with_sum(root, sum)
self.assertEqual(False, path_exists)
print("Path with sum {0} exists: {1}".format(sum, path_exists))
print("\n\n")
root = SampleBTree.create_left_weighted()
SampleBTree.print_left_weighted()
sum = 10
path_exists = has_path_with_sum(root, sum)
self.assertEqual(False, path_exists)
print("Path with sum {0} exists: {1}".format(sum, path_exists))
print("\n\n")
root = SampleBTree.create_right_weighted()
SampleBTree.print_right_weighted()
sum = 21
path_exists = has_path_with_sum(root, sum)
self.assertEqual(True, path_exists)
print("Path with sum {0} exists: {1}".format(sum, path_exists))
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n")
def test_structurally_identical(self):
print("TEST WHETHER TWO BINARY TREES ARE STRUCTURALLY IDENTICAL")
print("===========================================================")
root1 = SampleBTree.create_1()
root2 = SampleBTree.create_3()
print("First Tree:")
SampleBTree.print_1(message=False)
print("Second Tree:")
SampleBTree.print_3(message=False)
identical = structurally_identical(root1, root2)
self.assertEqual(False, identical)
print("Structurally Identical: {0}".format(identical))
print("\n---------------------------------\n")
root1 = SampleBTree.create_4()
root2 = SampleBTree.create_4()
print("First Tree:")
SampleBTree.print_4(message=False)
print("Second Tree:")
SampleBTree.print_4(message=False)
identical = structurally_identical(root1, root2)
self.assertEqual(True, identical)
print("Structurally Identical: {0}".format(identical))
print("\n---------------------------------\n")
root1 = SampleBTree.create_4()
root2 = SampleBTree.create_9()
print("First Tree:")
SampleBTree.print_4(message=False)
print("Second Tree:")
SampleBTree.print_9(message=False)
identical = structurally_identical(root1, root2)
self.assertEqual(False, identical)
print("Structurally Identical: {0}".format(identical))
print("\n---------------------------------\n")
root1 = SampleBTree.create_6()
root2 = SampleBTree.create_4()
print("First Tree:")
SampleBTree.print_6(message=False)
print("Second Tree:")
SampleBTree.print_4(message=False)
identical = structurally_identical(root1, root2)
self.assertEqual(False, identical)
print("Structurally Identical: {0}".format(identical), end="")
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n")
def test_diameter(self):
print("TEST DIAMETER OF A BINARY TREE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
diameter = find_diameter(root)
print("Diameter of the tree = {0}".format(diameter), end=" ")
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
diameter = find_diameter(root)
print("Diameter of the tree = {0}".format(diameter), end=" ")
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
diameter = find_diameter(root)
print("Diameter of the tree = {0}".format(diameter), end=" ")
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
diameter = find_diameter(root)
print("Diameter of the tree = {0}".format(diameter), end=" ")
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
diameter = find_diameter(root)
print("Diameter of the tree = {0}".format(diameter))
print("\n\n")
root = SampleBTree.create_left_weighted()
SampleBTree.print_left_weighted()
diameter = find_diameter(root)
print("Diameter of the tree = {0}".format(diameter))
print("\n\n")
root = SampleBTree.create_right_weighted()
SampleBTree.print_right_weighted()
diameter = find_diameter(root)
print("Diameter of the tree = {0}".format(diameter))
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_mirror(self):
print("TEST MIRROR OF A BINARY TREE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
print("Inorder traversal of the tree:", end=" ")
inorder(root)
print()
mirror(root)
print("Inorder traversal of the mirror:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
print("Inorder traversal of the tree:", end=" ")
inorder(root)
print()
mirror(root)
print("Inorder traversal of the mirror:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
print("Inorder traversal of the tree:", end=" ")
inorder(root)
print()
mirror(root)
print("Inorder traversal of the mirror:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
print("Inorder traversal of the tree:", end=" ")
inorder(root)
print()
mirror(root)
print("Inorder traversal of the mirror:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
print("Inorder traversal of the tree:", end=" ")
inorder(root)
print()
mirror(root)
print("Inorder traversal of the mirror:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_left_weighted()
SampleBTree.print_left_weighted()
print("Inorder traversal of the tree:", end=" ")
inorder(root)
print()
mirror(root)
print("Inorder traversal of the mirror:", end=" ")
inorder(root)
print("\n\n")
root = SampleBTree.create_right_weighted()
SampleBTree.print_right_weighted()
print("Inorder traversal of the tree:", end=" ")
inorder(root)
print()
mirror(root)
print("Inorder traversal of the mirror:", end=" ")
inorder(root)
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_diameter(self):
print("TEST LEVEL OF MAXIMUM SUM IN A BINARY TREE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
max_sum_level, sum = level_with_maximum_sum(root)
print("Maximum sum = {0}".format(sum))
print("Maximum sum level = {0}".format(max_sum_level), end=" ")
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
max_sum_level, sum = level_with_maximum_sum(root)
print("Maximum sum = {0}".format(sum))
print("Maximum sum level = {0}".format(max_sum_level), end=" ")
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
max_sum_level, sum = level_with_maximum_sum(root)
print("Maximum sum = {0}".format(sum))
print("Maximum sum level = {0}".format(max_sum_level), end=" ")
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
max_sum_level, sum = level_with_maximum_sum(root)
print("Maximum sum = {0}".format(sum))
print("Maximum sum level = {0}".format(max_sum_level), end=" ")
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
max_sum_level, sum = level_with_maximum_sum(root)
print("Maximum sum = {0}".format(sum))
print("Maximum sum level = {0}".format(max_sum_level))
print("\n\n")
root = SampleBTree.create_left_weighted()
SampleBTree.print_left_weighted()
max_sum_level, sum = level_with_maximum_sum(root)
print("Maximum sum = {0}".format(sum))
print("Maximum sum level = {0}".format(max_sum_level))
print("\n\n")
root = SampleBTree.create_right_weighted()
SampleBTree.print_right_weighted()
max_sum_level, sum = level_with_maximum_sum(root)
print("Maximum sum = {0}".format(sum))
print("Maximum sum level = {0}".format(max_sum_level))
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_levelorder(self):
print("TEST LEVELORDER TRAVERSAL OF A BINARY TREE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
print("Levelorder traversal:", end=" ")
levelorder(root)
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
print("Levelorder traversal:", end=" ")
levelorder(root)
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
print("Levelorder traversal:", end=" ")
levelorder(root)
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
print("Levelorder traversal:", end=" ")
levelorder(root)
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
print("Levelorder traversal:", end=" ")
levelorder(root)
print("\n\n")
root = SampleBTree.create_left_weighted()
SampleBTree.print_left_weighted()
print("Levelorder traversal:", end=" ")
levelorder(root)
print("\n\n")
root = SampleBTree.create_right_weighted()
SampleBTree.print_right_weighted()
print("Levelorder traversal:", end=" ")
levelorder(root)
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
def test_diameter(self):
print("TEST ALL PATHS FROM ROOT TO LEAF IN A BINARY TREE")
print("===========================================================")
root = SampleBTree.create_1()
SampleBTree.print_1()
print("All root to leaf paths:")
all_paths_from_root_to_leaf(root)
print("\n\n")
root = SampleBTree.create_3()
SampleBTree.print_3()
print("All root to leaf paths:")
all_paths_from_root_to_leaf(root)
print("\n\n")
root = SampleBTree.create_4()
SampleBTree.print_4()
print("All root to leaf paths:")
all_paths_from_root_to_leaf(root)
print("\n\n")
root = SampleBTree.create_6()
SampleBTree.print_6()
print("All root to leaf paths:")
all_paths_from_root_to_leaf(root)
print("\n\n")
root = SampleBTree.create_9()
SampleBTree.print_9()
print("All root to leaf paths:")
all_paths_from_root_to_leaf(root)
print("\n\n")
root = SampleBTree.create_left_weighted()
SampleBTree.print_left_weighted()
print("All root to leaf paths:")
all_paths_from_root_to_leaf(root)
print("\n\n")
root = SampleBTree.create_right_weighted()
SampleBTree.print_right_weighted()
print("All root to leaf paths:")
all_paths_from_root_to_leaf(root)
print(
"\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n\n"
)
