assertEquals(0, rescorers.length); // Should be 0 because rescorer returns null
    }

    @Test
    public void test_processJsonSearchPreference_queryPref() {
        String result = queryHelper.processJsonSearchPreference(null, "test query");
        // This will return the hashCode of the query as string
        assertEquals(Integer.toString("test query".hashCode()), result);
    }

    @Test