int main()
{
BSTree tree; // The binary search tree to be tested
char command; // The command entered by the user (I, N, F, D, L, or P)
int item; // The item to have the action performed on
cin >> command;
while (cin)
{
switch (command)
{
case 'I':
tree.initialize();
break;
case 'N':
cin >> item;
tree.insert(item);
break;
case 'F':
cin >> item;
cout << item << " ";
if (tree.find(item))
cout << "Found" << endl;
else
cout << "Not Found" << endl;
break;
case 'D':
cin >> item;
tree.del(item);
break;
case 'L':
tree.inorder(cout);
break;
case 'P':
tree.preorder(cout);
break;
default:
cout << "Illegal Command" << endl;
cin.clear();
cin.ignore(255, '\n');
break;
}
cin >> command;
}
}
void BinarySearchTreeTest(int nmbItems)
{
int i=0;
int value;
BSTree *BinarySearchTree = new BSTree();
while (i < nmbItems)
{
value = rand()%10; // Random integer value
cout << value;
if (i < (nmbItems-1))
cout << ", ";
BinarySearchTree->insert(value);
i++;
}
cout << endl;
cout << "Entered " << nmbItems << " random values into BSTree Data Structure ..." << endl;
cout << endl << "Preorder Traversal: ";
BinarySearchTree->BSTreeTraverse(PREORDER);
cout << endl << "Inorder Traversal: ";
BinarySearchTree->BSTreeTraverse(INORDER);
cout << endl << "Post order Traversal: ";
BinarySearchTree->BSTreeTraverse(POSTORDER);
cout << endl;
cout << "Search for a value in the tree: ";
cin >> value;
if (BinarySearchTree->find(value))
cout << "Found " << value;
else
cout << "Could not find " << value;
cout << endl;
BinarySearchTree->~BSTree();
}
int main(){
srand(time(NULL));
cerr << "\n\tTEST #0: Passes all tests from Lab 6" << endl;
BSTree tree;
assert(tree.empty());
int array[] = {5,3,10,4,8,2,1,7,9,6,12,11,13};
for(unsigned int i = 0; i < sizeof(array)/sizeof(int); i++){
tree.insert(array[i]);
assert(!tree.empty());
}
//retest inserting duplicate values
for(int i = 0; i < 8; i++){
assert(!tree.insert(array[i]));
}
for(int i = 1; i <= 14; i++){
if(i != 14){
assert(tree.find(i));
}else
assert(!tree.find(i));
}
BSTree tree3;
assert(!tree3.find(1));
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #1: Cannot remove node that is not in the tree" << endl;
assert(!tree.remove(25));
vector<int> test1;
tree.sortedArray(test1);
printList(test1);
assert(test1.size() == 13);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #2: Remove a leaf node" << endl;
assert(tree.remove(1));
vector<int> test2;
tree.sortedArray(test2);
printList(test2);
assert(test2.size() == 12);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #3: Remove single branch using the Short Circuit algorithm" << endl;
assert(tree.remove(7));
vector<int> test3;
tree.sortedArray(test3);
printList(test3);
assert(test3.size() == 11);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "Test #4: Remove two branch node promoting a leaf node" << endl;
assert(tree.remove(10));
vector<int> test4;
tree.sortedArray(test4);
printList(test4);
assert(test4.size() == 10);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #5: Remove two branch node promoting a 1 branch node using Short Circuit" << endl;
assert(tree.remove(11));
vector<int> test5;
tree.sortedArray(test5);
printList(test5);
assert(test5.size() == 9);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #6: Remove root with two branches" << endl;
assert(tree.remove(5));
vector<int> test6;
tree.sortedArray(test6);
printList(test6);
assert(test6.size() == 8);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #7: Remove root with one branch" << endl;
assert(tree.remove(3));
assert(tree.remove(4));
assert(tree.remove(2));
assert(tree.remove(6));
vector<int> test7;
tree.sortedArray(test7);
printList(test7);
assert(test7.size() == 4);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #8: Remove root as leaf" << endl;
assert(tree.remove(9));
assert(tree.remove(8));
assert(tree.remove(13));
assert(tree.remove(12));
vector<int> test8;
tree.sortedArray(test8);
printList(test8);
assert(test8.size() == 0);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #9: Deep copy for a tree of 100 random values" << endl;
for(int i = 0; i < 100; i++){
int value = rand() % 1000;
tree.insert(value);
}
BSTree * copyTree = new BSTree(tree);
vector<int> test9, test9Copy;
tree.sortedArray(test9);
copyTree->sortedArray(test9Copy);
assert(test9Copy == test9);
cerr << "\n\t========================PASS========================\n" << endl;
cerr << "\n\tTEST #10: Test deletion and Destructor" << endl;
for(int i = 0; i < 1000; i++){
tree.remove(i);
}
assert(tree.empty());
delete copyTree;
cerr << "\n\t========================PASS========================\n" << endl;
return 0;
}