class DoublyLinkedListTest(unittest.TestCase):
def setUp(self):
self.list=DoublyLinkedList()
def test_add(self):
self.list.add(1)
self.assertEqual(self.list.get_size(),1)
def test_addMultiple(self):
for i in range(4):
self.list.add(i)
self.assertEqual(self.list.get_size(),4)
def test_add_to_index(self):
self.list.add_to_index(5,0)
self.assertEqual(self.list.get(0),5)
self.list.add(1)
self.list.add(3)
self.list.add_to_index(2,1)
self.assertEqual(self.list.get(1),2)
self.list.add_to_index(0,0)
self.assertEqual(self.list.get(0),0)
self.list.add_to_index(4,4)
self.assertEqual(self.list.get(4),4)
def test_get(self):
self.list.add_multiple(1,2,3)
self.assertEqual(self.list.get(1),2)
def test_get_last(self):
self.list.add_multiple(1,2,3)
self.assertEqual(self.list.get_last(),3)
def test_get_first(self):
self.list.add_multiple(1,2,3)
self.assertEqual(self.list.get_first(),1)
def test_remove(self):
self.list.add_multiple(1,2,3,4,5)
self.list.remove(1)
self.assertEqual(self.list.get(1),3)
self.list.remove(0)
self.assertEqual(self.list.get(0),3)
def test_remove_last(self):
self.list.add_multiple(1,2,3,4,5)
self.list.remove_last()
self.assertEqual(self.list.get_last(),4)
def test_pop(self):
self.list.add_multiple(1,2,3)
self.assertEqual(self.list.pop(),3)
self.assertEqual(self.list.pop(),2)
def test_get_size(self):
self.assertEqual(self.list.get_size(),0)
self.list.add_multiple(1,2,3)
self.assertEqual(self.list.get_size(),3)
def test_is_empty(self):
self.assertTrue(self.list.is_empty())
self.list.add_multiple(1,2,3)
self.assertFalse(self.list.is_empty())
def test_str(self):
self.list.add(1)
self.list.add(4)
self.list.add(3)
self.assertEqual(str(self.list),"[1,4,3]")
