// test balancing of a binary tree
void test5(int n, int min, int max)
{
test("balance binary tree ", 5);
tree *t = create_random_tree(n, min, max);
printf("Binary Tree: \n");
print_ascii_tree(t);
printf("Balanced Tree: \n");
balance_tree(&t, n);
print_ascii_tree(t);
free_tree(t);
}
// test binary tree to linked list conversion
void test4(int n, int min, int max)
{
test("convert binary tree to linked list",4);
tree *t = create_random_tree(n,min,max);
print_ascii_tree(t);
printf("Binary Tree to Linked List: \n");
create_backbone(&t);
print_ascii_tree(t);
free_tree(t);
}
int main(void)
{
struct node* root = NULL;
//struct node* root2 = NULL;
struct node *find = NULL;
char str[1024];
root = insert(root, 10);
root = insert(root, 15);
root = insert(root, 9);
root = insert(root, 8);
root = insert(root, 13);
root = insert(root, 7);
root = insert(root, 5);
root = insert(root, 18);
root = insert(root, 22);
root = insert(root, 3);
root = insert(root, 4);
root = insert(root, 2);
root = insert(root, 1);
print_ascii_tree(root);
find = search(root, 18);
print_ascii_tree(root);
find = search(root, 22);
printf("\n\n\nDATA found is %d\n", find->data);
find = min_node(root);
printf("Min in this tree is %d\n", find->data);
find = max_node(root);
printf("Mx in this tree is %d\n", find->data);
print_ascii_tree(root);
preorder(root);
printf("\n");
inorder(root);
printf("\n");
postorder(root);
printf("\n");
printf("DEPTH is %d\n", depth(root));
tree_to_string(root, str);
printf("The STR generated is %s\n", str);
//string_to_tree(&root2, str);
//print_ascii_tree(root2);
printf("COUNT is %d\n",nodes(root));
bool res = hassum(root, 45);
printf("Bool val is %d\n", (int)res);
levelorder(root);
return 0;
}
// test predecessor & successor of a BST
void test6(int n, int min, int max)
{
test("Test predecessor: ",6);
tree *t = create_random_tree(n, min, max);
print_ascii_tree(t);
int i;
for ( i = min; i <= max ; i = i+10)
{
tree *predecessor = find_predecessor(t, i);
printf("%d's predecessor: ", i);
if( predecessor == NULL)
printf(" not found\n");
else
printf(" %d\n", predecessor->data);
}
test("Test successor: ",6);
for ( i = min; i <= max ; i = i+10)
{
tree *successor = find_successor(t, i);
printf("%d's successor: ", i);
if( successor == NULL)
printf(" not found\n");
else
printf(" %d\n", successor->data);
}
free_tree(t);
}
// create random tree and print
test1(int n, int min, int max)
{
test("create random tree and print",1);
tree *t = 0;
t = create_random_tree(n, min, max);
print_ascii_tree(t);
free_tree(t);
}
int main()
{
BSTNode *root = NULL;
root = insertBSTNode(root, 5);
root = insertBSTNode(root, 3);
root = insertBSTNode(root, 1);
root = insertBSTNode(root, 4);
root = insertBSTNode(root, 7);
root = insertBSTNode(root, 6);
root = insertBSTNode(root, 9);
print_ascii_tree(root);
// Delete Root
root = delteBSTNode(root, 5);
print_ascii_tree(root);
return 0;
}
// search from min to max
void test2(int n, int min, int max)
{
test("search elements between min & max",2);
int i;
tree *result;
tree *t = create_random_tree(n, min, max);
print_ascii_tree(t);
for( i = min ; i < max; ++i)
{
result = search(t,i);
if( result != NULL )
printf("%d found \n", i);
}
free_tree(t);
}
// delete within min and max
void test3(int n, int min, int max)
{
test("delete elements between min & max",3);
int i, size ;
tree *t = create_random_tree(n, min, max);
size = max - min;
int *a = (int *) malloc(size*sizeof(int));
for( i = 0 ; i < size; ++i)
a[i] = i;
shuffle(a, size);
for(i = 0 ; i < size; ++i)
{
printf("Delete : %d\n", a[i]);
delete_by_copying(&t, a[i]);
print_ascii_tree(t);
}
free(a);
free_tree(t);
}
int testBinarySearchTree(void) {
Tree *head = NULL;
Tree *singleNodeTree = malloc(sizeof(Tree));
Tree *test[2];
if(singleNodeTree == NULL) {
exit(EXIT_FAILURE);
}
singleNodeTree->value = 100;
singleNodeTree->left = NULL;
singleNodeTree->right = NULL;
printf("Start Test of Binary Search Tree.\n");
printf("Initial contents of the tree:\n");
print_ascii_tree(head);
printf("\nadd() 5 to the tree\n");
head = addToTree(head, 5);
print_ascii_tree(head);
printf("\nadd() 2 to the tree\n");
head = addToTree(head, 2);
print_ascii_tree(head);
printf("\nadd() 12 to the tree\n");
head = addToTree(head, 12);
print_ascii_tree(head);
printf("\nadd() 1 to the tree\n");
head = addToTree(head, 1);
print_ascii_tree(head);
printf("\nadd() 8 to the tree\n");
head = addToTree(head, 8);
print_ascii_tree(head);
printf("\nadd() 4 to the tree\n");
head = addToTree(head, 4);
print_ascii_tree(head);
printf("\nadd() 3 to the tree\n");
head = addToTree(head, 3);
print_ascii_tree(head);
printf("\nadd() 10 to the tree\n");
head = addToTree(head, 10);
print_ascii_tree(head);
printf("\nadd() 9 to the tree\n");
head = addToTree(head, 9);
print_ascii_tree(head);
printf("\nadd() 11 to the tree\n");
head = addToTree(head, 11);
print_ascii_tree(head);
printf("\nadd() 7 to the tree\n");
head = addToTree(head, 7);
print_ascii_tree(head);
if( (test[0] = findInTree(head, 3)) == NULL) {
printf("\nfind(3) = Value Not Found\n");
} else {
printf("\nfind(3) = %d\n", test[0]->value);
}
if( (test[0] = findInTree(head, 7)) == NULL) {
printf("\nfind(7) = Value Not Found\n");
} else {
printf("\nfind(7) = %d\n", test[0]->value);
}
if( (test[0] = findInTree(head, 4)) == NULL) {
printf("\nfind(4) = Value Not Found\n");
} else {
printf("\nfind(4) = %d\n", test[0]->value);
}
findParentInTree(head, head, 3, test);
if( test[1] == NULL) {
printf("\nfindParentOfNode(3) = Value Not Found\n");
} else {
printf("\nfindParentOfNode(%d) = %d\n", test[0]->value, test[1]->value);
}
findParentInTree(head, head, 5, test);
if( test[1] == NULL) {
printf("\nfindParentOfNode(5) = Value Not Found\n");
} else {
printf("\nfindParentOfNode(%d) = %d\n", test[0]->value, test[1]->value);
}
findParentInTree(head, head, 2, test);
if( test[1] == NULL) {
printf("\nfindParentOfNode(2) = Value Not Found\n");
} else {
printf("\nfindParentOfNode(%d) = %d\n", test[0]->value, test[1]->value);
}
findParentInTree(head, head, 9, test);
if( test[1] == NULL) {
printf("\nfindParentOfNode(9) = Value Not Found\n");
} else {
printf("\nfindParentOfNode(%d) = %d\n", test[0]->value, test[1]->value);
}
printf("Depth of the tree = %d\n", getTreeDepth(head, 0));
inOrderTraversal(head);
preOrderTraversal(head);
postOrderTraversal(head);
breadthFirstSearch(head);
/* Delete Order: 1, 3, 12, 8, 5 */
printf("\nbefore removing any items\n");
print_ascii_tree(head);
printf("\nremove() 1 from the tree\n");
head = removeFromTree(head, 1);
print_ascii_tree(head);
printf("\nremove() 3 from the tree\n");
head = removeFromTree(head, 3);
print_ascii_tree(head);
printf("\nremove() 12 from the tree\n");
head = removeFromTree(head, 12);
print_ascii_tree(head);
printf("\nremove() 8 from the tree\n");
head = removeFromTree(head, 8);
print_ascii_tree(head);
printf("\nremove() 5 from the tree\n");
head = removeFromTree(head, 5);
print_ascii_tree(head);
printf("\nremove() 11 from the tree\n");
head = removeFromTree(head, 11);
print_ascii_tree(head);
printf("Depth of the tree = %d\n", getTreeDepth(head, 0));
inOrderTraversal(head);
breadthFirstSearch(head);
printf("\nsinglNodeTests start here: \n");
print_ascii_tree(singleNodeTree);
inOrderTraversal(singleNodeTree);
printf("\n remove() 1 from tree\n");
if(removeFromTree(singleNodeTree, 1) == NULL) {
printf("Node Not Found, nothing removed\n");
}
printf("Depth of the singleNodeTree = %d\n", getTreeDepth(singleNodeTree, 0));
printf("\n remove() 100 from tree\n");
singleNodeTree = removeFromTree(singleNodeTree, 100);
printf("Depth of the singleNodeTree = %d\n", getTreeDepth(singleNodeTree, 0));
return EXIT_SUCCESS;
}