}

    // ========== buildGoUrl tests ==========

    @Test
    public void test_buildGoUrl_basic() {
        final String url = chatClient.testBuildGoUrl("", "doc123", "query456", 1710000000L, 0);
        assertEquals("/go/?rt=1710000000&docId=doc123&queryId=query456&order=0", url);
    }

    @Test