'Verify that SimplePush registrations are called.'

def test_simple_push_send(self, requests):

    u = UserFactory()
    url = 'http://example.com/simple_push/asdf'
    PushNotificationRegistration.objects.create(creator=u, push_url=url)
    n = NotificationFactory(owner=u)
    requests.put.assert_called_once_with(url, 'version={}'.format(n.id))
