def test_get_is_none_true(self):
possible_true = [None, [None, None]]
for p in possible_true:
self.assertTrue(get_is_none(p))
def test_get_is_none_false(self):
possible_false = ['a', ['a', 'b'], ['b', None]]
for p in possible_false:
self.assertFalse(get_is_none(p))
