def test_remove(self):
list = MyList(1, 2, 3, 4)
self.assertEqual(list.remove(3), 4)
self.assertIs(list.remove(6), None)
self.assertEqual(list.size(), 3)
with self.assertRaises(TypeError):
list.remove('not an int')
from my_list import MyList
from list_iterator import ListIterator
from non_zero_list_iterator import NonZeroListIterator
if __name__ == "__main__":
data = [1, 2, 0, 0, 5, 6, 1, 0, 9, 8, 3, 0]
ml = MyList(*data)
print("Iterator passing through whole list:")
i = ListIterator(ml)
i.first()
while not i.is_done():
print(i.current_item(), end=', ')
i.next()
print("\n\nIterator passing through only non zero elements of list:")
nzi = NonZeroListIterator(ml)
nzi.first()
while not nzi.is_done():
try:
print(nzi.current_item(), end=', ')
nzi.next()
except:
pass # last elem is 0
def init(self):
return MyList()
from my_list import MyList numbers = MyList() numbers.append(3) numbers.append(3) numbers.append(5) numbers.append(7) numbers.append(8) numbers.append(3) even_nos = MyList() even_nos.append(10) numbers.remove_odd() # [3, 3, 5, 7, 8, 3] print(numbers.items) # [10] print(even_nos.items)
def test_clear(self):
list = MyList(1, 2, 3, 4, 5)
list.clear()
self.assertEqual(list.get_size(), 0)
def test_get_size(self):
list = MyList(1, 2, 3, 4, 5)
self.assertEqual(list.get_size(), 5)
def test_remove_item(self):
list = MyList(1, 2, 3, 4, 5)
self.assertEqual(list.remove(3), 4)
self.assertEqual(list.get_size(), 4)
self.assertIs(list.remove(20), None)
def test_get_index(self):
list = MyList(1, 2, 3, 4, 5)
self.assertEqual(list.get_index_of(3), 2)
self.assertEqual(list.get_index_of(20), -1)
def test_get(self):
list = MyList(1, 2, 3, 4, 5)
self.assertEqual(list.get(2), 3)
self.assertIs(list.get(20), None)
def test_has_item(self):
list = MyList(1, 2, 3, 4, 5)
self.assertTrue(list.has(2), True)
self.assertFalse(list.has(20), False)
def test_add_items(self):
list = MyList(1, 2, 3, 4, 5)
list.add(6, 7, 8, 9, 10)
self.assertEqual(list.get_size(), 10)
def get_list(self):
l = MyList()
l.add(1)
l.add(2)
l.add(3)
return l
def test_size(self):
list = MyList(1, 2, 3, 4)
self.assertEqual(list.size(), 4)
def test_get_at(self):
list = MyList(1, 2, 3, 4)
self.assertEqual(list.get_at(3), 4)
self.assertIs(list.get_at(6), None)
with self.assertRaises(TypeError):
list.get_at('not an int')
def test_exists(self):
list = MyList(1, 2, 3, 4)
self.assertTrue(list.exists(2), True)
self.assertFalse(list.exists(8), False)
def test_add(self):
list = MyList(1, 2, 3, 4)
list.add(5, 6, 7, 8)
self.assertEqual(list.size(), 8)