def test_iterate_with_iterator(self):
l = DoubleLinkedList.from_list([1, 2, 3, 4, 5])
accumulator = []
it = l.iterator_first()
while it is not None:
accumulator.append(it.value)
it = it.next
self.assertEqual(accumulator, [1, 2, 3, 4, 5])
def test_pop_first_few_elements(self):
l = DoubleLinkedList().from_list([1, 2, 3, 4, 5])
l.pop_first()
l.pop_first()
l.pop_first()
self.assertEqual(list(l), [4, 5])
def test_push_first_a_few_elements(self):
l = DoubleLinkedList()
l.push_first(1)
l.push_first(2)
l.push_first(3)
self.assertEqual(list(l), [3, 2, 1])
def __init__(self, config, initial_frame):
"""
Konstruktor klasy. Przekazywane do niego są: konfiguracja oraz pierwsza klatka
"""
self.scene_rectangle = Rectangle(0, 0, config['width'],
config['height'])
self.config = config
self.initial_frame = initial_frame
self.frames = DoubleLinkedList.from_list([initial_frame])
self.current_frame_iterator = self.frames.iterator_first()
self.frames_counter = 0
def test_5_len(self):
l = DoubleLinkedList.from_list([1, 2, 3, 4, 5])
self.assertEqual(len(l), 5)
def test_0_len(self):
l = DoubleLinkedList()
self.assertEqual(len(l), 0)
def test_empty(self):
l = DoubleLinkedList()
self.assertTrue(l.empty())
def test_non_empty(self):
l = DoubleLinkedList.from_list([1, 2, 3, 4, 5])
self.assertFalse(l.empty())
def test_reverse(self):
l = DoubleLinkedList.from_list([1, 2, 3, 4, 5])
self.assertEqual(list(reversed(l)), [5, 4, 3, 2, 1])
def test_push_last_one_element(self):
l = DoubleLinkedList()
l.push_last(1)
self.assertEqual(list(l), [1])
def test_pop_last_one_element(self):
l = DoubleLinkedList().from_list([1, 2, 3, 4, 5])
l.pop_last()
self.assertEqual(list(l), [1, 2, 3, 4])
def test_creating_list_from_static_method(self):
l = DoubleLinkedList.from_list([1, 2, 3, 4, 5])
self.assertEqual(list(l), [1, 2, 3, 4, 5])