auto do_traverse = [&](auto item){ std::cout << item << ' '; };

ArrayQueue<int> array_queue_1(3);

array_queue_1.enqueue(1);

array_queue_1.enqueue(2);

array_queue_1.enqueue(3);

// array_queue_1.enqueue(4); // throw

array_queue_1.traverse(do_traverse);

std::cout << std::endl;

ArrayQueue<int> array_queue_2(array_queue_1); // copy constructor

array_queue_2.traverse(do_traverse);

std::cout << std::endl;

ArrayQueue<int> array_queue_3(std::move(array_queue_2)); // move constructor

array_queue_3.traverse(do_traverse);

std::cout << std::endl;

array_queue_2.traverse(do_traverse);

std::cout << std::endl;

std::cout << array_queue_3.head() << std::endl;

array_queue_3.dequeue();

std::cout << array_queue_3.head() << std::endl;

array_queue_3.dequeue();

std::cout << array_queue_3.head() << std::endl;

array_queue_3.dequeue();

// std::cout << array_queue_3.head() << std::endl; // throw

// array_queue_3.dequeue(); // throw

ArrayQueue<int> array_queue_4(1);

array_queue_4 = array_queue_1; // copy assignment

array_queue_4.traverse(do_traverse);

std::cout << std::endl;

ArrayQueue<int> array_queue_5(100);

array_queue_5 = std::move(array_queue_4); // move assignment

array_queue_5.traverse(do_traverse);

std::cout << std::endl;

array_queue_4.traverse(do_traverse);

std::cout << std::endl;

std::cout << array_queue_5.head() << std::endl;

array_queue_5.dequeue();

std::cout << array_queue_5.head() << std::endl;

array_queue_5.dequeue();

std::cout << array_queue_5.head() << std::endl;

array_queue_5.dequeue();

// std::cout << array_queue_5.head() << std::endl; // throw

// array_queue_5.dequeue(); // throw

return 0;