def test_insert_illegal_type_raises_ValueError(self):
# Arrange
l = LinkedList(1)
# Act + Assert
with self.assertRaises(ValueError):
l.insert('2')
def test_insert(self):
# Arrange
l = LinkedList(1)
# Act
l.insert(2)
l.insert(3)
# Assert
self.assertEqual(1, l.item)
self.assertEqual(2, l.next_l.item)
self.assertEqual(3, l.next_l.next_l.item)
self.assertEqual(None, l.next_l.next_l.next_l)
def _factory(l):
_l = LinkedList(l[0])
for item in l[1:]:
_l.insert(item)
return _l