Mocking django managers

mockman.py

from molly.apps.feeds.events import IndexView, Feed
from unittest import TestCase

class TestMocking(TestCase):
    def test_mock_count(self):
        Feed.objects = Mock()
        feeds = [Feed(url='http://foo.bar'), Feed(url='http://bar.baz')]
        mock_queryset = Mock(return_value=feeds)
        mock_queryset.count.return_value = 42
        Feed.objects.all = mock_queryset
        self.assertEqual(len(Feed.objects.all()), Feed.objects.all().count())