extends Node func _ready(): test_max_size() test_push_and_pop() test_iteration() func test_max_size(): print("Testing max_size...") var d = Deque.new() d.max_size = 3 d.push_back(1) d.push_back(2) d.push_back(3) d.push_back(4) assert(d.size() == 3) assert(d.front() == 2) assert(d.back() == 4) print("Max size test passed!") func test_push_and_pop(): print("Testing push and pop...") var d = Deque.new() d.push_back(1) d.push_back(2) d.push_front(0) assert(d.pop_back() == 2) assert(d.pop_front() == 0) assert(d.front() == 1) assert(d.back() == 1) print("Push and pop test passed!") func test_iteration(): print("Testing iteration...") var d = Deque.new() d.max_size = 3 d.push_back(1) d.push_back(2) d.push_back(3) d.push_back(4) var sum = 0 for item in d: sum += item assert(sum == 9) print("Iteration test passed!")