def test_add(self):
preserved = PreservedTags()
self.assertNotIn("tag3", preserved)
preserved.add("tag3")
self.assertIn("tag3", preserved)
# Add must persists the change
self.assertIn("tag3", PreservedTags())
def test_order(self):
preserved = PreservedTags()
preserved.add('tag3')
preserved.add('tag2')
preserved.add('tag1')
preserved.discard('tag2')
self.assertEqual(config.setting[PreservedTags.opt_name], 'tag1, tag3')
def test_add_case_insensitive(self):
preserved = PreservedTags()
self.assertNotIn("tag3", preserved)
preserved.add("TAG3")
self.assertIn("tag3", preserved)
