def test_ShadowedList__reverse__values_and_shadow_values_identical(self):
# ShadowList.reverse() works also when passed the same
# sequence as values and as shadow_values.
list_ = range(3)
shadow_list = ShadowedList(list_, list_)
shadow_list.reverse()
self.assertEqual(0, shadow_list[-1])
self.assertEqual(2, shadow_list[0])
self.assertEqual(0, shadow_list.shadow_values[-1])
self.assertEqual(2, shadow_list.shadow_values[0])
def test_ShadowedList__reverse(self):
# ShadowList.reverse() reverses its elements.
list1 = range(3)
list2 = self.makeStringSequence(list1)
first1 = list1[0]
last1 = list1[-1]
first2 = list2[0]
last2 = list2[-1]
shadow_list = ShadowedList(list1, list2)
shadow_list.reverse()
self.assertEqual(first1, shadow_list[-1])
self.assertEqual(last1, shadow_list[0])
self.assertEqual(first2, shadow_list.shadow_values[-1])
self.assertEqual(last2, shadow_list.shadow_values[0])