def test_doublyLinkedlist_remove(self):
#we remove both the head and the tail here to see that it works
L = DoubleLinkedlist()
L.insertFirst(6, 5, 30, 50)
L.remove(6)
L.remove(50)
self.assertEqual(L.toList(), [30,5])
def test_doublyLinkedlist_search_forwards(self):
L = DoubleLinkedlist()
L.insertFirst(1, 2, 3, 4, 5)
self.assertEqual(L.search_by_index(2).getData(), 2)
def test_doublyLinkedList_search_byValue(self):
L = DoubleLinkedlist()
L.insertFirst(6, 5, 30, 50)
self.assertEqual(L.search(50).getData(), 50)
def test_doublyLinkedlist_insert_first(self):
L = DoubleLinkedlist()
L.insertFirst(5, 6, 30, 50, 60, 3)
L.show()
self.assertEqual(L.toList(), [3, 60, 50, 30, 6, 5] )