585 lines
21 KiB
TypeScript
585 lines
21 KiB
TypeScript
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import { test } from '@git.zone/tstest/tapbundle';
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import { createTestServer, createSmtpClient } from '../../helpers/utils.js';
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import { Email } from '../../../ts/mail/core/classes.email.js';
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import * as fs from 'fs';
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import * as path from 'path';
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test('CREL-07: Resource Cleanup Reliability Tests', async () => {
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console.log('\n🧹 Testing SMTP Client Resource Cleanup Reliability');
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console.log('=' .repeat(60));
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const tempDir = path.join(process.cwd(), '.nogit', 'test-resource-cleanup');
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// Ensure test directory exists
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if (!fs.existsSync(tempDir)) {
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fs.mkdirSync(tempDir, { recursive: true });
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}
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// Helper function to count active resources
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const getResourceCounts = () => {
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const usage = process.memoryUsage();
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return {
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memory: Math.round(usage.heapUsed / 1024 / 1024 * 100) / 100, // MB
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handles: process._getActiveHandles ? process._getActiveHandles().length : 0,
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requests: process._getActiveRequests ? process._getActiveRequests().length : 0
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};
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};
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// Scenario 1: Connection Pool Cleanup
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await test.test('Scenario 1: Connection Pool Cleanup', async () => {
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console.log('\n🏊 Testing connection pool resource cleanup...');
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let openConnections = 0;
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let closedConnections = 0;
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const connectionIds: string[] = [];
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const testServer = await createTestServer({
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responseDelay: 20,
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onConnect: (socket: any) => {
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openConnections++;
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const connId = `CONN-${openConnections}`;
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connectionIds.push(connId);
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console.log(` [Server] ${connId} opened (total open: ${openConnections})`);
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socket.on('close', () => {
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closedConnections++;
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console.log(` [Server] Connection closed (total closed: ${closedConnections})`);
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});
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}
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});
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try {
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const initialResources = getResourceCounts();
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console.log(` Initial resources: ${initialResources.memory}MB memory, ${initialResources.handles} handles`);
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console.log(' Phase 1: Creating and using connection pools...');
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const clients = [];
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for (let poolIndex = 0; poolIndex < 4; poolIndex++) {
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console.log(` Creating connection pool ${poolIndex + 1}...`);
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const smtpClient = createSmtpClient({
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host: testServer.hostname,
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port: testServer.port,
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secure: false,
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pool: true,
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maxConnections: 3,
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maxMessages: 20,
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resourceCleanup: true,
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autoCleanupInterval: 1000
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});
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clients.push(smtpClient);
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// Send emails through this pool
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const emails = [];
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for (let i = 0; i < 5; i++) {
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emails.push(new Email({
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from: `sender${poolIndex}@cleanup.test`,
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to: [`recipient${i}@cleanup.test`],
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subject: `Pool Cleanup Test ${poolIndex + 1}-${i + 1}`,
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text: `Testing connection pool cleanup ${poolIndex + 1}-${i + 1}`,
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messageId: `pool-cleanup-${poolIndex}-${i}@cleanup.test`
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}));
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}
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const promises = emails.map((email, index) => {
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return smtpClient.sendMail(email).then(result => {
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console.log(` ✓ Pool ${poolIndex + 1} Email ${index + 1} sent`);
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return { success: true };
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}).catch(error => {
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console.log(` ✗ Pool ${poolIndex + 1} Email ${index + 1} failed`);
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return { success: false, error };
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});
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});
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const results = await Promise.all(promises);
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const successful = results.filter(r => r.success).length;
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console.log(` Pool ${poolIndex + 1}: ${successful}/${emails.length} emails sent`);
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}
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const afterCreation = getResourceCounts();
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console.log(` After pool creation: ${afterCreation.memory}MB memory, ${afterCreation.handles} handles`);
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console.log(' Phase 2: Closing all pools and testing cleanup...');
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for (let i = 0; i < clients.length; i++) {
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console.log(` Closing pool ${i + 1}...`);
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clients[i].close();
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// Wait for cleanup to occur
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await new Promise(resolve => setTimeout(resolve, 200));
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const currentResources = getResourceCounts();
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console.log(` Resources after closing pool ${i + 1}: ${currentResources.memory}MB, ${currentResources.handles} handles`);
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}
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// Wait for all cleanup to complete
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await new Promise(resolve => setTimeout(resolve, 1000));
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const finalResources = getResourceCounts();
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console.log(`\n Resource cleanup assessment:`);
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console.log(` Initial: ${initialResources.memory}MB memory, ${initialResources.handles} handles`);
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console.log(` Final: ${finalResources.memory}MB memory, ${finalResources.handles} handles`);
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console.log(` Memory cleanup: ${finalResources.memory - initialResources.memory < 2 ? 'Good' : 'Memory retained'}`);
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console.log(` Handle cleanup: ${finalResources.handles <= initialResources.handles + 1 ? 'Good' : 'Handles remaining'}`);
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console.log(` Connection cleanup: ${closedConnections >= openConnections - 1 ? 'Complete' : 'Incomplete'}`);
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} finally {
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testServer.close();
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}
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});
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// Scenario 2: File Handle and Stream Cleanup
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await test.test('Scenario 2: File Handle and Stream Cleanup', async () => {
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console.log('\n📁 Testing file handle and stream cleanup...');
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const testServer = await createTestServer({
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responseDelay: 30,
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onData: (data: string) => {
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if (data.includes('Attachment Test')) {
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console.log(' [Server] Processing attachment email');
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}
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}
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});
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try {
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const initialResources = getResourceCounts();
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console.log(` Initial resources: ${initialResources.memory}MB memory, ${initialResources.handles} handles`);
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console.log(' Creating temporary files for attachment testing...');
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const tempFiles: string[] = [];
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for (let i = 0; i < 8; i++) {
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const fileName = path.join(tempDir, `attachment-${i}.txt`);
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const content = `Attachment content ${i + 1}\n${'X'.repeat(1000)}`; // 1KB files
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fs.writeFileSync(fileName, content);
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tempFiles.push(fileName);
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console.log(` Created temp file: ${fileName}`);
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}
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const smtpClient = createSmtpClient({
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host: testServer.hostname,
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port: testServer.port,
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secure: false,
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pool: true,
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maxConnections: 2,
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streamCleanup: true,
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fileHandleManagement: true
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});
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console.log(' Sending emails with file attachments...');
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const emailPromises = tempFiles.map((filePath, index) => {
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const email = new Email({
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from: 'sender@filehandle.test',
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to: [`recipient${index}@filehandle.test`],
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subject: `File Handle Cleanup Test ${index + 1}`,
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text: `Testing file handle cleanup with attachment ${index + 1}`,
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attachments: [{
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filename: `attachment-${index}.txt`,
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path: filePath
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}],
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messageId: `filehandle-${index}@filehandle.test`
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});
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return smtpClient.sendMail(email).then(result => {
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console.log(` ✓ Email ${index + 1} with attachment sent`);
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return { success: true, index };
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}).catch(error => {
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console.log(` ✗ Email ${index + 1} failed: ${error.message}`);
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return { success: false, index, error };
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});
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});
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const results = await Promise.all(emailPromises);
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const successful = results.filter(r => r.success).length;
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console.log(` Email sending completed: ${successful}/${tempFiles.length} successful`);
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const afterSending = getResourceCounts();
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console.log(` Resources after sending: ${afterSending.memory}MB memory, ${afterSending.handles} handles`);
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console.log(' Closing client and testing file handle cleanup...');
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smtpClient.close();
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// Wait for cleanup
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await new Promise(resolve => setTimeout(resolve, 500));
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// Clean up temp files
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tempFiles.forEach(filePath => {
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try {
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fs.unlinkSync(filePath);
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console.log(` Cleaned up: ${filePath}`);
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} catch (error) {
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console.log(` Failed to clean up ${filePath}: ${error.message}`);
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}
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});
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const finalResources = getResourceCounts();
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console.log(`\n File handle cleanup assessment:`);
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console.log(` Initial handles: ${initialResources.handles}`);
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console.log(` After sending: ${afterSending.handles}`);
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console.log(` Final handles: ${finalResources.handles}`);
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console.log(` Handle management: ${finalResources.handles <= initialResources.handles + 2 ? 'Effective' : 'Handles leaked'}`);
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console.log(` Memory cleanup: ${finalResources.memory - initialResources.memory < 3 ? 'Good' : 'Memory retained'}`);
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} finally {
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testServer.close();
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}
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});
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// Scenario 3: Timer and Interval Cleanup
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await test.test('Scenario 3: Timer and Interval Cleanup', async () => {
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console.log('\n⏰ Testing timer and interval cleanup...');
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const testServer = await createTestServer({
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responseDelay: 40
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});
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try {
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const initialResources = getResourceCounts();
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console.log(` Initial resources: ${initialResources.memory}MB memory, ${initialResources.handles} handles`);
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console.log(' Creating clients with various timer configurations...');
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const clients = [];
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for (let i = 0; i < 3; i++) {
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const smtpClient = createSmtpClient({
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host: testServer.hostname,
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port: testServer.port,
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secure: false,
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pool: true,
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maxConnections: 2,
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// Timer configurations
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connectionTimeout: 2000,
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keepAlive: true,
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keepAliveInterval: 1000,
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retryDelay: 500,
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healthCheckInterval: 800,
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timerCleanup: true
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});
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clients.push(smtpClient);
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// Send an email to activate timers
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const email = new Email({
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from: `sender${i}@timer.test`,
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to: [`recipient${i}@timer.test`],
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subject: `Timer Cleanup Test ${i + 1}`,
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text: `Testing timer cleanup ${i + 1}`,
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messageId: `timer-${i}@timer.test`
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});
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try {
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await smtpClient.sendMail(email);
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console.log(` ✓ Client ${i + 1} email sent (timers active)`);
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} catch (error) {
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console.log(` ✗ Client ${i + 1} failed: ${error.message}`);
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}
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}
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// Let timers run for a while
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console.log(' Allowing timers to run...');
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await new Promise(resolve => setTimeout(resolve, 2000));
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const withTimers = getResourceCounts();
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console.log(` Resources with active timers: ${withTimers.memory}MB memory, ${withTimers.handles} handles`);
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console.log(' Closing clients and testing timer cleanup...');
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for (let i = 0; i < clients.length; i++) {
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console.log(` Closing client ${i + 1}...`);
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clients[i].close();
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// Wait for timer cleanup
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await new Promise(resolve => setTimeout(resolve, 300));
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const currentResources = getResourceCounts();
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console.log(` Resources after closing client ${i + 1}: ${currentResources.handles} handles`);
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}
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// Wait for all timer cleanup to complete
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await new Promise(resolve => setTimeout(resolve, 1500));
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const finalResources = getResourceCounts();
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console.log(`\n Timer cleanup assessment:`);
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console.log(` Initial handles: ${initialResources.handles}`);
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console.log(` With timers: ${withTimers.handles}`);
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console.log(` Final handles: ${finalResources.handles}`);
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console.log(` Timer cleanup: ${finalResources.handles <= initialResources.handles + 1 ? 'Complete' : 'Timers remaining'}`);
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console.log(` Resource management: ${finalResources.handles < withTimers.handles ? 'Effective' : 'Incomplete'}`);
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} finally {
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testServer.close();
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}
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});
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// Scenario 4: Event Listener and Callback Cleanup
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await test.test('Scenario 4: Event Listener and Callback Cleanup', async () => {
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console.log('\n🎧 Testing event listener and callback cleanup...');
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const testServer = await createTestServer({
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responseDelay: 25,
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onConnect: () => {
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console.log(' [Server] Connection for event cleanup test');
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}
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});
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try {
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const initialResources = getResourceCounts();
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console.log(` Initial resources: ${initialResources.memory}MB memory`);
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console.log(' Creating clients with extensive event listeners...');
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const clients = [];
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const eventHandlers: any[] = [];
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for (let clientIndex = 0; clientIndex < 5; clientIndex++) {
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const smtpClient = createSmtpClient({
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host: testServer.hostname,
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port: testServer.port,
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secure: false,
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pool: true,
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maxConnections: 1,
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eventCleanup: true
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});
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clients.push(smtpClient);
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// Add multiple event listeners
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const handlers = [];
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for (let eventIndex = 0; eventIndex < 6; eventIndex++) {
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const handler = (data: any) => {
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// Event handler with closure
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|
console.log(` Event ${eventIndex} from client ${clientIndex}: ${typeof data}`);
|
|||
|
|
};
|
|||
|
|
handlers.push(handler);
|
|||
|
|
|
|||
|
|
// Add event listeners (simulated)
|
|||
|
|
if (smtpClient.on) {
|
|||
|
|
smtpClient.on('connect', handler);
|
|||
|
|
smtpClient.on('error', handler);
|
|||
|
|
smtpClient.on('close', handler);
|
|||
|
|
smtpClient.on('data', handler);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
eventHandlers.push(handlers);
|
|||
|
|
|
|||
|
|
// Send test email to trigger events
|
|||
|
|
const email = new Email({
|
|||
|
|
from: `sender${clientIndex}@eventcleanup.test`,
|
|||
|
|
to: [`recipient${clientIndex}@eventcleanup.test`],
|
|||
|
|
subject: `Event Cleanup Test ${clientIndex + 1}`,
|
|||
|
|
text: `Testing event listener cleanup ${clientIndex + 1}`,
|
|||
|
|
messageId: `event-cleanup-${clientIndex}@eventcleanup.test`
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
try {
|
|||
|
|
await smtpClient.sendMail(email);
|
|||
|
|
console.log(` ✓ Client ${clientIndex + 1} email sent (events active)`);
|
|||
|
|
} catch (error) {
|
|||
|
|
console.log(` ✗ Client ${clientIndex + 1} failed: ${error.message}`);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
const withEvents = getResourceCounts();
|
|||
|
|
console.log(` Resources with event listeners: ${withEvents.memory}MB memory`);
|
|||
|
|
|
|||
|
|
console.log(' Closing clients and testing event listener cleanup...');
|
|||
|
|
for (let i = 0; i < clients.length; i++) {
|
|||
|
|
console.log(` Closing client ${i + 1} and removing ${eventHandlers[i].length} event listeners...`);
|
|||
|
|
|
|||
|
|
// Remove event listeners manually first
|
|||
|
|
if (clients[i].removeAllListeners) {
|
|||
|
|
clients[i].removeAllListeners();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Close client
|
|||
|
|
clients[i].close();
|
|||
|
|
|
|||
|
|
// Clear handler references
|
|||
|
|
eventHandlers[i].length = 0;
|
|||
|
|
|
|||
|
|
await new Promise(resolve => setTimeout(resolve, 100));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Force garbage collection if available
|
|||
|
|
if (global.gc) {
|
|||
|
|
global.gc();
|
|||
|
|
global.gc();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
await new Promise(resolve => setTimeout(resolve, 500));
|
|||
|
|
|
|||
|
|
const finalResources = getResourceCounts();
|
|||
|
|
console.log(`\n Event listener cleanup assessment:`);
|
|||
|
|
console.log(` Initial memory: ${initialResources.memory}MB`);
|
|||
|
|
console.log(` With events: ${withEvents.memory}MB`);
|
|||
|
|
console.log(` Final memory: ${finalResources.memory}MB`);
|
|||
|
|
console.log(` Memory cleanup: ${finalResources.memory - initialResources.memory < 2 ? 'Effective' : 'Memory retained'}`);
|
|||
|
|
console.log(` Event cleanup: ${finalResources.memory < withEvents.memory ? 'Successful' : 'Partial'}`);
|
|||
|
|
|
|||
|
|
} finally {
|
|||
|
|
testServer.close();
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// Scenario 5: Error State Cleanup
|
|||
|
|
await test.test('Scenario 5: Error State Cleanup', async () => {
|
|||
|
|
console.log('\n💥 Testing error state cleanup...');
|
|||
|
|
|
|||
|
|
let connectionCount = 0;
|
|||
|
|
let errorInjectionActive = false;
|
|||
|
|
|
|||
|
|
const testServer = await createTestServer({
|
|||
|
|
responseDelay: 30,
|
|||
|
|
onConnect: (socket: any) => {
|
|||
|
|
connectionCount++;
|
|||
|
|
console.log(` [Server] Connection ${connectionCount}`);
|
|||
|
|
|
|||
|
|
if (errorInjectionActive && connectionCount > 2) {
|
|||
|
|
console.log(` [Server] Injecting connection error ${connectionCount}`);
|
|||
|
|
setTimeout(() => socket.destroy(), 50);
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
onData: (data: string, socket: any) => {
|
|||
|
|
if (errorInjectionActive && data.includes('MAIL FROM')) {
|
|||
|
|
socket.write('500 Internal server error\r\n');
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
try {
|
|||
|
|
const initialResources = getResourceCounts();
|
|||
|
|
console.log(` Initial resources: ${initialResources.memory}MB memory, ${initialResources.handles} handles`);
|
|||
|
|
|
|||
|
|
console.log(' Creating clients for error state testing...');
|
|||
|
|
const clients = [];
|
|||
|
|
|
|||
|
|
for (let i = 0; i < 4; i++) {
|
|||
|
|
clients.push(createSmtpClient({
|
|||
|
|
host: testServer.hostname,
|
|||
|
|
port: testServer.port,
|
|||
|
|
secure: false,
|
|||
|
|
pool: true,
|
|||
|
|
maxConnections: 2,
|
|||
|
|
retryDelay: 200,
|
|||
|
|
retries: 2,
|
|||
|
|
errorStateCleanup: true,
|
|||
|
|
gracefulErrorHandling: true
|
|||
|
|
}));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
console.log(' Phase 1: Normal operation...');
|
|||
|
|
const email1 = new Email({
|
|||
|
|
from: 'sender@errorstate.test',
|
|||
|
|
to: ['recipient1@errorstate.test'],
|
|||
|
|
subject: 'Error State Test - Normal',
|
|||
|
|
text: 'Normal operation before errors',
|
|||
|
|
messageId: 'error-normal@errorstate.test'
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
try {
|
|||
|
|
await clients[0].sendMail(email1);
|
|||
|
|
console.log(' ✓ Normal operation successful');
|
|||
|
|
} catch (error) {
|
|||
|
|
console.log(' ✗ Normal operation failed');
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
const afterNormal = getResourceCounts();
|
|||
|
|
console.log(` Resources after normal operation: ${afterNormal.handles} handles`);
|
|||
|
|
|
|||
|
|
console.log(' Phase 2: Error injection phase...');
|
|||
|
|
errorInjectionActive = true;
|
|||
|
|
|
|||
|
|
const errorEmails = [];
|
|||
|
|
for (let i = 0; i < 6; i++) {
|
|||
|
|
errorEmails.push(new Email({
|
|||
|
|
from: 'sender@errorstate.test',
|
|||
|
|
to: [`recipient${i}@errorstate.test`],
|
|||
|
|
subject: `Error State Test ${i + 1}`,
|
|||
|
|
text: `Testing error state cleanup ${i + 1}`,
|
|||
|
|
messageId: `error-state-${i}@errorstate.test`
|
|||
|
|
}));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
const errorPromises = errorEmails.map((email, index) => {
|
|||
|
|
const client = clients[index % clients.length];
|
|||
|
|
return client.sendMail(email).then(result => {
|
|||
|
|
console.log(` ✓ Error email ${index + 1} unexpectedly succeeded`);
|
|||
|
|
return { success: true, index };
|
|||
|
|
}).catch(error => {
|
|||
|
|
console.log(` ✗ Error email ${index + 1} failed as expected`);
|
|||
|
|
return { success: false, index, error: error.message };
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
const errorResults = await Promise.all(errorPromises);
|
|||
|
|
const afterErrors = getResourceCounts();
|
|||
|
|
console.log(` Resources after error phase: ${afterErrors.handles} handles`);
|
|||
|
|
|
|||
|
|
console.log(' Phase 3: Recovery and cleanup...');
|
|||
|
|
errorInjectionActive = false;
|
|||
|
|
|
|||
|
|
// Test recovery
|
|||
|
|
const recoveryEmail = new Email({
|
|||
|
|
from: 'sender@errorstate.test',
|
|||
|
|
to: ['recovery@errorstate.test'],
|
|||
|
|
subject: 'Error State Test - Recovery',
|
|||
|
|
text: 'Testing recovery after errors',
|
|||
|
|
messageId: 'error-recovery@errorstate.test'
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
try {
|
|||
|
|
await clients[0].sendMail(recoveryEmail);
|
|||
|
|
console.log(' ✓ Recovery successful');
|
|||
|
|
} catch (error) {
|
|||
|
|
console.log(' ✗ Recovery failed');
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
console.log(' Closing all clients...');
|
|||
|
|
clients.forEach((client, index) => {
|
|||
|
|
console.log(` Closing client ${index + 1}...`);
|
|||
|
|
client.close();
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
await new Promise(resolve => setTimeout(resolve, 1000));
|
|||
|
|
|
|||
|
|
const finalResources = getResourceCounts();
|
|||
|
|
|
|||
|
|
const errorSuccessful = errorResults.filter(r => r.success).length;
|
|||
|
|
const errorFailed = errorResults.filter(r => !r.success).length;
|
|||
|
|
|
|||
|
|
console.log(`\n Error state cleanup assessment:`);
|
|||
|
|
console.log(` Error phase results: ${errorSuccessful} succeeded, ${errorFailed} failed`);
|
|||
|
|
console.log(` Initial handles: ${initialResources.handles}`);
|
|||
|
|
console.log(` After errors: ${afterErrors.handles}`);
|
|||
|
|
console.log(` Final handles: ${finalResources.handles}`);
|
|||
|
|
console.log(` Error state cleanup: ${finalResources.handles <= initialResources.handles + 1 ? 'Complete' : 'Incomplete'}`);
|
|||
|
|
console.log(` Recovery capability: ${errorFailed > 0 ? 'Error handling active' : 'No errors detected'}`);
|
|||
|
|
console.log(` Resource management: ${finalResources.handles < afterErrors.handles ? 'Effective' : 'Needs improvement'}`);
|
|||
|
|
|
|||
|
|
} finally {
|
|||
|
|
testServer.close();
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// Cleanup test directory
|
|||
|
|
try {
|
|||
|
|
if (fs.existsSync(tempDir)) {
|
|||
|
|
const files = fs.readdirSync(tempDir);
|
|||
|
|
for (const file of files) {
|
|||
|
|
const filePath = path.join(tempDir, file);
|
|||
|
|
if (fs.existsSync(filePath)) {
|
|||
|
|
fs.unlinkSync(filePath);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
fs.rmdirSync(tempDir);
|
|||
|
|
console.log('\n🧹 Test directory cleaned up successfully');
|
|||
|
|
}
|
|||
|
|
} catch (error) {
|
|||
|
|
console.log(`\n⚠️ Warning: Could not clean up test directory: ${error.message}`);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
console.log('\n✅ CREL-07: Resource Cleanup Reliability Tests completed');
|
|||
|
|
console.log('🧹 All resource cleanup scenarios tested successfully');
|
|||
|
|
});
|