修改文件结构，统一文档格式
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ylweng
233
test/tests/performance-monitor-test.js
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233
test/tests/performance-monitor-test.js
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/**
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* 性能监控系统测试脚本
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* @file performance-monitor-test.js
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* @description 测试性能监控系统的基本功能
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*/
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const { performanceMonitor, events: perfEvents } = require('../backend/utils/performance-monitor');
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const logger = require('../backend/utils/logger');
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// 配置测试日志
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function log(message) {
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console.log(`[${new Date().toISOString()}] ${message}`);
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}
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// 测试事件监听
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function setupEventListeners() {
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perfEvents.on('monitoringStarted', (data) => {
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log(`✅ 监控启动事件触发，间隔: ${data.interval}ms`);
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});
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perfEvents.on('monitoringStopped', () => {
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log('✅ 监控停止事件触发');
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});
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perfEvents.on('highCpuUsage', (data) => {
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log(`⚠️ 高CPU使用率事件触发: ${data.usage}% (阈值: ${data.threshold}%)`);
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});
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perfEvents.on('highMemoryUsage', (data) => {
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log(`⚠️ 高内存使用率事件触发: ${data.usage}% (阈值: ${data.threshold}%)`);
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});
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perfEvents.on('highDiskUsage', (data) => {
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log(`⚠️ 高磁盘使用率事件触发: ${data.usage}% (阈值: ${data.threshold}%)`);
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});
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log('事件监听器已设置');
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}
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// 测试系统资源监控
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async function testSystemMonitoring() {
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log('\n--- 测试系统资源监控 ---');
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try {
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// 获取系统指标
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const metrics = performanceMonitor.getSystemMetrics();
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log('系统指标:');
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log(`CPU使用率: ${metrics.current.cpu.usage}%`);
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log(`内存使用率: ${metrics.current.memory.usage}%`);
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log(`磁盘使用率: ${metrics.current.disk.usage}%`);
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// 测试收集系统指标
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const collected = performanceMonitor.collectSystemMetrics();
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log('收集的系统指标:');
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log(`CPU使用率: ${collected.cpuUsage.usage}%`);
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log(`内存使用率: ${collected.memoryUsage.usage}%`);
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log(`磁盘使用率: ${collected.diskUsage.usage}%`);
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return true;
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} catch (error) {
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log(`❌ 系统资源监控测试失败: ${error.message}`);
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return false;
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}
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}
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// 测试警报阈值设置
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async function testAlertThresholds() {
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log('\n--- 测试警报阈值设置 ---');
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try {
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// 获取当前阈值
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const originalThresholds = performanceMonitor.getAlertThresholds();
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log('当前警报阈值:');
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log(`CPU使用率阈值: ${originalThresholds.system.cpuUsage}%`);
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log(`内存使用率阈值: ${originalThresholds.system.memoryUsage}%`);
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log(`API响应时间阈值: ${originalThresholds.api.responseTime}ms`);
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// 设置新阈值
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const newThresholds = {
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system: {
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cpuUsage: 50,
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memoryUsage: 60
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},
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api: {
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responseTime: 200
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}
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};
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const result = performanceMonitor.setAlertThresholds(newThresholds);
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log('设置新阈值结果:');
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log(`成功: ${result.success}`);
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log(`CPU使用率新阈值: ${result.thresholds.system.cpuUsage}%`);
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log(`内存使用率新阈值: ${result.thresholds.system.memoryUsage}%`);
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log(`API响应时间新阈值: ${result.thresholds.api.responseTime}ms`);
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// 恢复原始阈值
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performanceMonitor.setAlertThresholds(originalThresholds);
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log('已恢复原始阈值');
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return true;
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} catch (error) {
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log(`❌ 警报阈值设置测试失败: ${error.message}`);
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return false;
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}
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}
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// 测试监控启动和停止
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async function testMonitoringControl() {
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log('\n--- 测试监控启动和停止 ---');
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try {
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// 获取当前状态
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const originalStatus = performanceMonitor.getMonitoringStatus();
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log(`当前监控状态: ${originalStatus.isMonitoring ? '运行中' : '已停止'}`);
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// 如果已经在运行，先停止
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if (originalStatus.isMonitoring) {
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const stopResult = performanceMonitor.stopMonitoring();
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log(`停止监控结果: ${stopResult.success ? '成功' : '失败'} - ${stopResult.message}`);
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}
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// 启动监控（使用短间隔进行测试）
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const startResult = performanceMonitor.startMonitoring(5000); // 5秒间隔
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log(`启动监控结果: ${startResult.success ? '成功' : '失败'} - ${startResult.message}`);
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// 等待10秒，让监控运行一段时间
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log('等待10秒...');
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await new Promise(resolve => setTimeout(resolve, 10000));
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// 获取更新后的状态
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const updatedStatus = performanceMonitor.getMonitoringStatus();
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log(`更新后的监控状态: ${updatedStatus.isMonitoring ? '运行中' : '已停止'}`);
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log(`监控间隔: ${updatedStatus.interval}ms`);
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// 停止监控
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const finalStopResult = performanceMonitor.stopMonitoring();
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log(`停止监控结果: ${finalStopResult.success ? '成功' : '失败'} - ${finalStopResult.message}`);
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// 恢复原始状态
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if (originalStatus.isMonitoring) {
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performanceMonitor.startMonitoring(originalStatus.interval);
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log(`已恢复原始监控状态，间隔: ${originalStatus.interval}ms`);
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}
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return true;
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} catch (error) {
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log(`❌ 监控启动和停止测试失败: ${error.message}`);
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return false;
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}
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}
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// 测试API统计
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async function testApiStats() {
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log('\n--- 测试API统计 ---');
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try {
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// 模拟API请求
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const req1 = { method: 'GET', path: '/api/test', headers: {}, ip: '127.0.0.1' };
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const res1 = { statusCode: 200, end: function() {}, on: function(event, callback) { callback(); } };
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const req2 = { method: 'POST', path: '/api/users', headers: {}, ip: '127.0.0.1' };
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const res2 = { statusCode: 201, end: function() {}, on: function(event, callback) { callback(); } };
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const req3 = { method: 'GET', path: '/api/error', headers: {}, ip: '127.0.0.1' };
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const res3 = { statusCode: 500, end: function() {}, on: function(event, callback) { callback(); } };
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// 重置API统计
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performanceMonitor.resetApiStats();
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log('API统计已重置');
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// 记录API请求
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log('记录API请求...');
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performanceMonitor.recordApiRequest(req1, res1, Date.now() - 50); // 50ms响应时间
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performanceMonitor.recordApiRequest(req2, res2, Date.now() - 100); // 100ms响应时间
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performanceMonitor.recordApiRequest(req3, res3, Date.now() - 600); // 600ms响应时间（慢请求）
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// 获取API统计
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const apiStats = performanceMonitor.getApiStats();
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log('API统计:');
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log(`总请求数: ${apiStats.totalRequests}`);
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log(`总错误数: ${apiStats.totalErrors}`);
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log(`错误率: ${apiStats.errorRate}%`);
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log(`平均响应时间: ${apiStats.avgResponseTime}ms`);
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log(`每分钟请求数: ${apiStats.requestsPerMinute}`);
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log('端点统计:');
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apiStats.endpoints.forEach(endpoint => {
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log(`- ${endpoint.endpoint}: ${endpoint.count}请求, ${endpoint.avgDuration}ms平均响应时间, ${endpoint.errorRate}%错误率`);
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});
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return true;
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} catch (error) {
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log(`❌ API统计测试失败: ${error.message}`);
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return false;
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}
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}
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// 运行所有测试
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async function runAllTests() {
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log('开始性能监控系统测试...');
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// 设置事件监听器
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setupEventListeners();
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// 运行测试
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const results = {
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systemMonitoring: await testSystemMonitoring(),
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alertThresholds: await testAlertThresholds(),
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monitoringControl: await testMonitoringControl(),
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apiStats: await testApiStats()
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};
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// 输出测试结果摘要
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log('\n--- 测试结果摘要 ---');
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Object.entries(results).forEach(([test, passed]) => {
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log(`${test}: ${passed ? '✅ 通过' : '❌ 失败'}`);
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});
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const allPassed = Object.values(results).every(result => result === true);
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log(`\n总体结果: ${allPassed ? '✅ 所有测试通过' : '❌ 部分测试失败'}`);
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return allPassed;
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}
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// 执行测试
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runAllTests()
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.then(passed => {
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log(`测试完成，${passed ? '全部通过' : '部分失败'}`);
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process.exit(passed ? 0 : 1);
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})
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.catch(error => {
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log(`测试执行错误: ${error.message}`);
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process.exit(1);
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});
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