'Test that a split_test module renders all of its children in Studio.'

def test_split_test(self):

    root_usage_key = self._create_vertical()
    resp = self.create_xblock(category='split_test', parent_usage_key=root_usage_key)
    split_test_usage_key = self.response_usage_key(resp)
    resp = self.create_xblock(parent_usage_key=split_test_usage_key, category='html', boilerplate='announcement.yaml')
    self.assertEqual(resp.status_code, 200)
    resp = self.create_xblock(parent_usage_key=split_test_usage_key, category='html', boilerplate='zooming_image.yaml')
    self.assertEqual(resp.status_code, 200)
    (html, __) = self._get_container_preview(split_test_usage_key)
    self.assertIn('Announcement', html)
    self.assertIn('Zooming', html)
