def test_two_parts(self):
        q = self.qfs(['foo', 'bar:baz'])
        self.assertIsInstance(q, dbcore.query.AndQuery)
        self.assertEqual(len(q.subqueries), 2)
        self.assertIsInstance(q.subqueries[0], dbcore.query.AnyFieldQuery)
        self.assertIsInstance(q.subqueries[1], dbcore.query.SubstringQuery)