'Fill up France feed, then send an empty array for France.'

def test_truncate_feed(self):

    self.feed_permission()
    self._set_feed_items(self.data)
    ok_(FeedItem.objects.filter(region=mkt.regions.FRA.id))
    self.data['fr'] = []
    self._set_feed_items(self.data)
    ok_(FeedItem.objects.filter(region=mkt.regions.USA.id))
    ok_((not FeedItem.objects.filter(region=mkt.regions.FRA.id)))
