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# Copyright 2011 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""Tests for the BugActivity code."""
__metaclass__ = type
from lazr.lifecycle.event import ObjectModifiedEvent
from lazr.lifecycle.snapshot import Snapshot
from lp.testing.layers import DatabaseFunctionalLayer
from lp.bugs.interfaces.bug import IBug
from lp.bugs.subscribers.bugactivity import what_changed
from lp.testing import (
person_logged_in,
TestCaseWithFactory,
)
class TestWhatChanged(TestCaseWithFactory):
"""Tests for the what_changed function."""
layer = DatabaseFunctionalLayer
def test_what_changed_works_with_fieldnames(self):
# When what_changed is passed an ObjectModifiedEvent with a list
# of fieldnames in its edited_fields property, it will deal with
# those fields appropriately.
bug = self.factory.makeBug()
bug_before_modification = Snapshot(bug, providing=IBug)
with person_logged_in(bug.owner):
bug.setPrivate(True, bug.owner)
event = ObjectModifiedEvent(
bug, bug_before_modification, ['private'])
expected_changes = {'private': ['False', 'True']}
changes = what_changed(event)
self.assertEqual(expected_changes, changes)
def test_what_changed_works_with_field_instances(self):
# Sometimes something will pass what_changed an
# ObjectModifiedEvent where the edited_fields list contains
# field instances. what_changed handles that correctly, too.
bug = self.factory.makeBug()
bug_before_modification = Snapshot(bug, providing=IBug)
with person_logged_in(bug.owner):
bug.setPrivate(True, bug.owner)
event = ObjectModifiedEvent(
bug, bug_before_modification, [IBug['private']])
expected_changes = {'private': ['False', 'True']}
changes = what_changed(event)
self.assertEqual(expected_changes, changes)
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