def test_remove_tag_undo(session):
tag = Tag('tag')
entry = DatabaseEntry()
entry.tags.append(tag)
session.add(entry)
session.commit()
assert tag in entry.tags
cmd = RemoveTag(session, entry, tag)
cmd()
assert tag not in entry.tags
cmd.undo()
assert tag in entry.tags
def test_remove_tag_undo(session):
tag = Tag('tag')
entry = DatabaseEntry()
entry.tags.append(tag)
session.add(entry)
session.commit()
assert tag in entry.tags
cmd = RemoveTag(session, entry, tag)
cmd()
assert tag not in entry.tags
cmd.undo()
assert tag in entry.tags
def test_remove_tag_repr(session):
entry = DatabaseEntry(id=8)
tag = Tag('foo')
expected_repr_result = (
"<RemoveTag("
"tag 'foo', "
"session <sqlalchemy.orm.session.Session object at *>, "
"entry id 8)>".format(id(session)))
assert fnmatch.fnmatch(repr(RemoveTag(session, entry, tag)), expected_repr_result)
def test_remove_nonexisting_tag(session):
cmd = RemoveTag(session, DatabaseEntry(), Tag('tag'))
with pytest.raises(NonRemovableTagError):
cmd()