def test_tasks_with_tags_return_those_tags_values(self):
# given
t1 = Task('t1')
tag1 = Tag('tag1')
t1.tags.append(tag1)
t2 = Task('t2')
tag2 = Tag('tag2')
t2.tags.append(tag1)
t2.tags.append(tag2)
self.pl.create_all()
self.pl.add(t1)
self.pl.add(t2)
self.pl.add(tag1)
self.pl.add(tag2)
self.pl.commit()
# when
result = set(t1.get_tag_values())
# then
self.assertEqual({tag1.value}, result)
# when
result = set(t2.get_tag_values())
# then
self.assertEqual({tag1.value, tag2.value}, result)
def test_no_tags_yields_no_tags(self):
# given
t1 = Task('t1')
# when
result = set(t1.get_tag_values())
# then
self.assertEqual(set(), result)
