def testCopyList(self):
B = DoublyLinkedList()
B = self.A.copyList()
self.A.append(4)
B.append(5)
expAResult = "HEAD < (None)<-[1]->(2) (1)<-[2]->(3) (2)<-[3]->(4) (3)<-[4]->(None) > TAIL"
expBResult = "HEAD < (None)<-[1]->(2) (1)<-[2]->(3) (2)<-[3]->(5) (3)<-[5]->(None) > TAIL"
Aresult = str(self.A)
Bresult = str(B)
self.assertEqual(expAResult, Aresult)
self.assertEqual(expBResult, Bresult)
self.assertNotEqual(Aresult, Bresult)
print("\ntestCopyList PASSED!")
def testEmpty(self):
emptyList = DoublyLinkedList()
expResult = "HEAD <> TAIL"
result = str(emptyList)
self.assertEqual(result, expResult)
print("\ntestEmpty PASSED!")
def setUp(self):
self.A = DoublyLinkedList()
for data in [3, 2, 1]:
self.A.insert(data)
