def test_signal_emitted_on_slug_change(self):
# Connect a mock signal handler to the signal
handler = mock.MagicMock()
page_slug_changed.connect(handler)
old_page = SimplePage.objects.get(id=self.test_page.id)
try:
self.test_page.slug = 'updated'
self.test_page.save()
# TODO: When Django 3.1< support is dropped, wrap save in
# self.captureOnCommitCallbacks and remove this code
for _, func in connection.run_on_commit:
func()
finally:
# Disconnect mock handler to prevent cross-test pollution
page_slug_changed.disconnect(handler)
# Check the signal was fired
self.assertEqual(handler.call_count, 1)
self.assertTrue(
handler.called_with(
sender=SimplePage,
instance=self.test_page,
instance_before=old_page,
))
def ready(self):
from wagtail.core.signals import page_slug_changed, post_page_move
from .signal_handlers import (autocreate_redirects_on_page_move,
autocreate_redirects_on_slug_change)
post_page_move.connect(autocreate_redirects_on_page_move)
page_slug_changed.connect(autocreate_redirects_on_slug_change)
def test_signal_not_emitted_on_page_move(self):
# Connect a mock signal handler to the signal
handler = mock.MagicMock()
page_slug_changed.connect(handler)
try:
self.test_page.move(self.section_b, pos="last-child")
# NOTE: Even though we're not expecting anything to happen here,
# we need to invoke the callbacks in run_on_commit the same way
# the same way we do in ``test_signal_emitted_on_slug_change``,
# otherwise this test wouldn't prove anything.
for _, func in connection.run_on_commit:
func()
finally:
# Disconnect mock handler to prevent cross-test pollution
page_slug_changed.disconnect(handler)
# Check the signal was NOT fired
self.assertEqual(handler.call_count, 0)