def test_insert(self):
xx = [
1, 2, 2, 3, 3223, 4, 32, 5, 43, 543, 5, 4, 645, 64, '', '32432',
'324saf'
]
lt = Zlist(xx)
with self.assertRaises(ListError) as ex:
lt.insert(lt.get_size() + 1, 111)
xx2 = xx[:]
for i in range(10):
xx2.insert(i, i)
lt.insert(i, i)
self.assertEqual(xx2[i], lt.value_at(i))
lt2 = Zlist()
# print(lt2.get_size())
lt2.insert(0, 1)
# print(lt2.get_size())
self.assertEqual(lt2.front(), 1)
lt2.pop_back()
# print(lt2.get_size())
with self.assertRaises(ListError) as ex:
lt2.insert(1, 1)
pass
def test_pop_back(self):
xx = [
1, 2, 2, 3, 3223, 4, 32, 5, 43, 543, 5, 4, 645, 64, '', '32432',
'324saf'
]
lt = Zlist(xx)
len_xx = len(xx)
for i in range(len_xx):
# print(lt.pop_back(), xx[len_xx-i-1])
lt_val = lt.pop_back()
# print("test:", lt_val, xx[len_xx-i-1])
self.assertEqual(lt_val, xx[len_xx - i - 1])
self.assertEqual(lt.get_size(), len(xx) - i - 1)
self.assertEqual(lt.pop_back(), None)