final long expiredTime = ((Number) body.get("expiredTime")).longValue();
        assertTrue(createdTime >= before);
        assertTrue(createdTime <= after);
        // heartbeat TTL = 180000
        assertEquals(180000L, expiredTime - createdTime);
    }

    @Test
    public void test_publishEvent_usesConfigTtl() {
        setupMockFessConfig();

-XX:G1HeapRegionSize=1m\n\
-XX:MaxGCPauseMillis=60000\n\
-XX:G1NewSizePercent=5\n\
-XX:G1MaxNewSizePercent=5\n\
-Djcifs.smb.client.responseTimeout=30000\n\
-Djcifs.smb.client.soTimeout=35000\n\
-Djcifs.smb.client.connTimeout=60000\n\
-Djcifs.smb.client.sessionTimeout=60000\n\
-Djcifs.smb1.smb.client.connTimeout=60000\n\
-Djcifs.smb1.smb.client.soTimeout=35000\n\
-Djcifs.smb1.smb.client.responseTimeout=30000\n\
-Dio.netty.noUnsafe=true\n\

    public void test_addHistoryWithBudget_turnBasedPacking_newestTurnOnly() {
        final List<LlmMessage> history = new ArrayList<>();
        history.add(LlmMessage.user("A".repeat(100))); // 100
        history.add(LlmMessage.assistant("B".repeat(100))); // 100
        history.add(LlmMessage.user("Q2")); // 2
        history.add(LlmMessage.assistant("A2")); // 2
        final LlmChatRequest request = new LlmChatRequest();

        for (int i = 0; i < 10000; i++) {
            if (i % 1000 == 0) {
                logger.info("count:" + i + ", " + MemoryUtil.getMemoryUsageLog());
            }
            ResponseData responseData = new ResponseData();
            responseData.setCharSet("UTF-8");
            responseData.setContentLength(data.length());
            responseData.setExecutionTime(1000L);

            return value.longValue();
        }
        value = getAsInteger("elasticsearch.heartbeat_interval");
        if (value != null) {
            return value.longValue();
        }
        return 10000L;
    }

    // ===================================================================================
    //                                                                         Rate Limit

    /** OAuth2 authorization code parameter name. */
    protected static final String CODE = "code";

    /** Timeout for token acquisition in milliseconds. */
    protected long acquisitionTimeout = 30 * 1000L;

    /** Cache for storing group information to reduce API calls. */
    protected Cache<String, Pair<String[], String[]>> groupCache;

    /** Group cache expiry time in seconds. */