def test_determine_update_values_none_to_down(self):
upvote, downvote = determine_update_values(2, 0, 0, 0)
self.assertEqual(upvote, 0)
self.assertEqual(downvote, 1)
def test_determine_update_value_upvote_to_none(self):
upvote, downvote = determine_update_values(1, 2, 1, 0)
self.assertEqual(upvote, 0)
self.assertEqual(downvote, 0)
def test_determine_update_values_down_to_up(self):
upvote, downvote = determine_update_values(0, 1, 0, 1)
self.assertEqual(upvote, 1)
self.assertEqual(downvote, 0)
def test_determine_update_values_no_effect(self):
upvote, downvote = determine_update_values(1, 1, 1, 0)
self.assertEqual(upvote, 1)
self.assertEqual(downvote, 0)