def test_callback_called_on_modification_with_watch(self):
new_instance = ArticleFactory()
self.watcher.watch()
new_instance.title = 'modified'
new_instance.save()
# callback should be called with instance modification
self.callback.assert_called_once_with(
obj=new_instance, attr=self.attr, sender=self.watcher)
def test_get_object_return_obj_from_database(self):
"""get_object should return obj from database"""
unsaved_obj = ArticleFactory()
unsaved_obj.title = 'unsaved value'
r = self.investigator.get_object(unsaved_obj.pk)
# title should not be different because unsaved_obj has not saved yet
self.assertNotEqual(r.title, unsaved_obj.title)
# save
unsaved_obj.save()
r = self.investigator.get_object(unsaved_obj.pk)
self.assertEqual(r.title, unsaved_obj.title)
def test_investigate_yield_modified_attributes(self):
"""investigate should yields modified attribute names"""
article = ArticleFactory()
article.title = 'modified'
article.content = 'modified'
# call prepare before save
self.investigator.prepare(article)
# save the change
article.save()
# investigate
iterator = self.investigator.investigate(article)
self.assertEqual(set(list(iterator)), set([
'title', 'content',
]))
def test_callback_not_called_on_modification_without_watch(self):
new_instance = ArticleFactory()
new_instance.title = 'modified'
new_instance.save()
# have not watched, thus callback should not be called
self.assertFalse(self.callback.called)
