I have a class as
class PlaylistManager(models.Manager):
def add_playlist(self, name):
playlist = Playlist(name=name)
playlist.save()
return playlist
def get_playlist_with_id(self, id):
return super(PlaylistManager, self).get_query_set().filter(pk=id)
class Playlist(models.Model):
name = models.CharField(max_length=30)
date_created = models.DateTimeField(auto_now_add=True)
date_modified = models.DateTimeField(auto_now=True)
deleted = models.BooleanField(default=False)
objects = PlaylistManager() # is a customer manager
def __repr__(self):
return '<Playlist name:%s, date_created:%s, date_modified:%s, deleted:%s>' % \
(self.name, self.date_created, self.date_modified, self.deleted)
class Meta:
db_table = 'playlists'
and i test
as
def test_get_playlist(self):
playlist = Utility.add_playlist()
self.assertEqual(Playlist.objects.get_playlist_with_id(playlist.id), playlist)
class Utility():
@staticmethod
def add_playlist(playlist_name=PLAYLIST):
return Playlist.objects.add_playlist(playlist_name)
When I run the test, I see error as
AssertionError: [<Playlist name:playlist, date_created:2012-07-18 19:54:12.265909+00:00, date_modified:2012-07-18 19:54:12.265955+00:00, deleted:False>] != <Playlist name:playlist, date_created:2012-07-18 19:54:12.265909+00:00, date_modified:2012-07-18 19:54:12.265955+00:00, deleted:False>
even when the two objects are same.
Is there anything I am missing here?
assertEqual()
uses the ==
operator to compare the classes. The default ==
operator of user-defined classes compares instances by object identity. This means two instances are only considered equal when they are the same instance.