update
This commit is contained in:
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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 crypto from 'crypto';
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test('CREL-06: Concurrent Operation Safety Reliability Tests', async () => {
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console.log('\n⚡ Testing SMTP Client Concurrent Operation Safety');
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console.log('=' .repeat(60));
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// Scenario 1: Simultaneous Connection Management
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await test.test('Scenario 1: Simultaneous Connection Management', async () => {
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console.log('\n🔗 Testing simultaneous connection management safety...');
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let connectionCount = 0;
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let activeConnections = 0;
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const connectionLog: string[] = [];
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const testServer = await createTestServer({
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responseDelay: 30,
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onConnect: (socket: any) => {
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connectionCount++;
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activeConnections++;
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const connId = `CONN-${connectionCount}`;
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connectionLog.push(`${new Date().toISOString()}: ${connId} OPENED (active: ${activeConnections})`);
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console.log(` [Server] ${connId} opened (total: ${connectionCount}, active: ${activeConnections})`);
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socket.on('close', () => {
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activeConnections--;
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connectionLog.push(`${new Date().toISOString()}: ${connId} CLOSED (active: ${activeConnections})`);
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console.log(` [Server] ${connId} closed (active: ${activeConnections})`);
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});
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}
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});
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try {
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console.log(' Creating multiple SMTP clients with shared connection pool...');
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const clients = [];
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for (let i = 0; i < 5; i++) {
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clients.push(createSmtpClient({
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host: testServer.hostname,
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port: testServer.port,
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secure: false,
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pool: true,
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maxConnections: 3,
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maxMessages: 10,
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connectionTimeout: 2000,
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threadSafe: true
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}));
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}
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console.log(' Launching concurrent email sending operations...');
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const emailBatches = clients.map((client, clientIndex) => {
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return Array.from({ length: 8 }, (_, emailIndex) => {
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return new Email({
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from: `sender${clientIndex}@concurrent.test`,
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to: [`recipient${clientIndex}-${emailIndex}@concurrent.test`],
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subject: `Concurrent Safety Test Client ${clientIndex + 1} Email ${emailIndex + 1}`,
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text: `Testing concurrent operation safety from client ${clientIndex + 1}, email ${emailIndex + 1}`,
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messageId: `concurrent-${clientIndex}-${emailIndex}@concurrent.test`
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});
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});
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});
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const startTime = Date.now();
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const allPromises: Promise<any>[] = [];
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// Launch all email operations simultaneously
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emailBatches.forEach((emails, clientIndex) => {
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emails.forEach((email, emailIndex) => {
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const promise = clients[clientIndex].sendMail(email).then(result => {
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console.log(` ✓ Client ${clientIndex + 1} Email ${emailIndex + 1} sent`);
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return { success: true, clientIndex, emailIndex, result };
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}).catch(error => {
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console.log(` ✗ Client ${clientIndex + 1} Email ${emailIndex + 1} failed: ${error.message}`);
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return { success: false, clientIndex, emailIndex, error };
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});
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allPromises.push(promise);
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});
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});
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const results = await Promise.all(allPromises);
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const endTime = Date.now();
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// Close all clients
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clients.forEach(client => client.close());
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// Wait for connections to close
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await new Promise(resolve => setTimeout(resolve, 500));
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const successful = results.filter(r => r.success).length;
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const failed = results.filter(r => !r.success).length;
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const totalEmails = emailBatches.flat().length;
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console.log(`\n Concurrent operation results:`);
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console.log(` Total operations: ${totalEmails}`);
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console.log(` Successful: ${successful}, Failed: ${failed}`);
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console.log(` Success rate: ${((successful / totalEmails) * 100).toFixed(1)}%`);
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console.log(` Execution time: ${endTime - startTime}ms`);
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console.log(` Peak connections: ${Math.max(...connectionLog.map(log => {
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const match = log.match(/active: (\d+)/);
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return match ? parseInt(match[1]) : 0;
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}))}`);
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console.log(` Connection management: ${activeConnections === 0 ? 'Clean' : 'Connections remaining'}`);
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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: Thread-Safe Queue Operations
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await test.test('Scenario 2: Thread-Safe Queue Operations', async () => {
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console.log('\n🔒 Testing thread-safe queue operations...');
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let messageProcessingOrder: string[] = [];
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const testServer = await createTestServer({
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responseDelay: 20,
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onData: (data: string) => {
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const messageIdMatch = data.match(/Message-ID:\s*<([^>]+)>/);
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if (messageIdMatch) {
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messageProcessingOrder.push(messageIdMatch[1]);
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console.log(` [Server] Processing: ${messageIdMatch[1]}`);
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}
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}
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});
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try {
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console.log(' Creating SMTP client with thread-safe queue...');
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const smtpClient = createSmtpClient({
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host: testServer.hostname,
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port: testServer.port,
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secure: false,
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pool: true,
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maxConnections: 2,
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maxMessages: 50,
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queueSafety: true,
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lockingMode: 'strict'
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});
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console.log(' Launching concurrent queue operations...');
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const operations: Promise<any>[] = [];
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const emailGroups = ['A', 'B', 'C', 'D'];
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// Create concurrent operations that modify the queue
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emailGroups.forEach((group, groupIndex) => {
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// Add multiple emails per group concurrently
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for (let i = 0; i < 6; i++) {
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const email = new Email({
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from: `sender${group}@queuetest.example`,
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to: [`recipient${group}${i}@queuetest.example`],
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subject: `Queue Safety Test Group ${group} Email ${i + 1}`,
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text: `Testing queue thread safety for group ${group}, email ${i + 1}`,
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messageId: `queue-safety-${group}-${i}@queuetest.example`
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});
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const operation = smtpClient.sendMail(email).then(result => {
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return {
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success: true,
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group,
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index: i,
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messageId: email.messageId,
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timestamp: Date.now()
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};
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}).catch(error => {
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return {
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success: false,
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group,
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index: i,
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messageId: email.messageId,
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error: error.message
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};
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});
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operations.push(operation);
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}
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});
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const startTime = Date.now();
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const results = await Promise.all(operations);
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const endTime = Date.now();
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// Wait for all processing to complete
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await new Promise(resolve => setTimeout(resolve, 300));
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const successful = results.filter(r => r.success).length;
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const failed = results.filter(r => !r.success).length;
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console.log(`\n Queue safety results:`);
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console.log(` Total queue operations: ${operations.length}`);
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console.log(` Successful: ${successful}, Failed: ${failed}`);
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console.log(` Success rate: ${((successful / operations.length) * 100).toFixed(1)}%`);
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console.log(` Processing time: ${endTime - startTime}ms`);
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// Analyze processing order for race conditions
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const groupCounts = emailGroups.reduce((acc, group) => {
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acc[group] = messageProcessingOrder.filter(id => id.includes(`-${group}-`)).length;
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return acc;
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}, {} as Record<string, number>);
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console.log(` Processing distribution:`);
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Object.entries(groupCounts).forEach(([group, count]) => {
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console.log(` Group ${group}: ${count} emails processed`);
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});
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const totalProcessed = Object.values(groupCounts).reduce((a, b) => a + b, 0);
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console.log(` Queue integrity: ${totalProcessed === successful ? 'Maintained' : 'Potential race condition'}`);
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smtpClient.close();
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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: Concurrent Error Handling
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await test.test('Scenario 3: Concurrent Error Handling', async () => {
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console.log('\n❌ Testing concurrent error handling safety...');
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let errorInjectionPhase = false;
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let connectionAttempts = 0;
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const testServer = await createTestServer({
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responseDelay: 25,
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onConnect: (socket: any) => {
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connectionAttempts++;
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console.log(` [Server] Connection attempt ${connectionAttempts}`);
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if (errorInjectionPhase && Math.random() < 0.4) {
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console.log(` [Server] Injecting connection error ${connectionAttempts}`);
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socket.destroy();
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return;
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}
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},
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onData: (data: string, socket: any) => {
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if (errorInjectionPhase && data.includes('MAIL FROM') && Math.random() < 0.3) {
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console.log(' [Server] Injecting SMTP error');
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socket.write('450 Temporary failure, please retry\r\n');
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return false;
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}
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return true;
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}
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});
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try {
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console.log(' Creating multiple clients for concurrent error testing...');
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const clients = [];
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for (let i = 0; i < 4; i++) {
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clients.push(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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retryDelay: 100,
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retries: 3,
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errorHandling: 'concurrent-safe',
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failureRecovery: true
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}));
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}
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const emails = [];
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for (let clientIndex = 0; clientIndex < clients.length; clientIndex++) {
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for (let emailIndex = 0; emailIndex < 5; emailIndex++) {
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emails.push({
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client: clients[clientIndex],
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email: new Email({
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from: `sender${clientIndex}@errortest.example`,
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to: [`recipient${clientIndex}-${emailIndex}@errortest.example`],
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subject: `Concurrent Error Test Client ${clientIndex + 1} Email ${emailIndex + 1}`,
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text: `Testing concurrent error handling ${clientIndex + 1}-${emailIndex + 1}`,
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messageId: `error-concurrent-${clientIndex}-${emailIndex}@errortest.example`
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}),
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clientIndex,
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emailIndex
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});
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}
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}
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console.log(' Phase 1: Normal operation...');
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const phase1Results = [];
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const phase1Emails = emails.slice(0, 8); // First 8 emails
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const phase1Promises = phase1Emails.map(({ client, email, clientIndex, emailIndex }) => {
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return client.sendMail(email).then(result => {
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console.log(` ✓ Phase 1: Client ${clientIndex + 1} Email ${emailIndex + 1} sent`);
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return { success: true, phase: 1, clientIndex, emailIndex };
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}).catch(error => {
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console.log(` ✗ Phase 1: Client ${clientIndex + 1} Email ${emailIndex + 1} failed`);
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return { success: false, phase: 1, clientIndex, emailIndex, error: error.message };
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});
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});
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const phase1Resolved = await Promise.all(phase1Promises);
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phase1Results.push(...phase1Resolved);
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console.log(' Phase 2: Error injection enabled...');
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errorInjectionPhase = true;
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const phase2Results = [];
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const phase2Emails = emails.slice(8); // Remaining emails
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const phase2Promises = phase2Emails.map(({ client, email, clientIndex, emailIndex }) => {
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return client.sendMail(email).then(result => {
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console.log(` ✓ Phase 2: Client ${clientIndex + 1} Email ${emailIndex + 1} recovered`);
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return { success: true, phase: 2, clientIndex, emailIndex };
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}).catch(error => {
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console.log(` ✗ Phase 2: Client ${clientIndex + 1} Email ${emailIndex + 1} failed permanently`);
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return { success: false, phase: 2, clientIndex, emailIndex, error: error.message };
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});
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});
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const phase2Resolved = await Promise.all(phase2Promises);
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phase2Results.push(...phase2Resolved);
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// Close all clients
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clients.forEach(client => client.close());
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const phase1Success = phase1Results.filter(r => r.success).length;
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const phase2Success = phase2Results.filter(r => r.success).length;
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const totalSuccess = phase1Success + phase2Success;
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const totalEmails = emails.length;
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console.log(`\n Concurrent error handling results:`);
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console.log(` Phase 1 (normal): ${phase1Success}/${phase1Results.length} successful`);
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console.log(` Phase 2 (errors): ${phase2Success}/${phase2Results.length} successful`);
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console.log(` Overall success: ${totalSuccess}/${totalEmails} (${((totalSuccess / totalEmails) * 100).toFixed(1)}%)`);
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console.log(` Error resilience: ${phase2Success > 0 ? 'Good' : 'Poor'}`);
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console.log(` Concurrent error safety: ${phase1Success === phase1Results.length ? 'Maintained' : 'Compromised'}`);
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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: Resource Contention Management
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await test.test('Scenario 4: Resource Contention Management', async () => {
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console.log('\n🏁 Testing resource contention management...');
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||||
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const testServer = await createTestServer({
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responseDelay: 40, // Slower responses to create contention
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maxConnections: 3, // Limit server connections
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onConnect: (socket: any) => {
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console.log(' [Server] New connection established');
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}
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});
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||||
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try {
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console.log(' Creating high-contention scenario with limited resources...');
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const clients = [];
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// Create more clients than server can handle simultaneously
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for (let i = 0; i < 8; i++) {
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clients.push(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, // Force contention
|
||||
maxMessages: 10,
|
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connectionTimeout: 3000,
|
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resourceContention: 'managed',
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||||
backoffStrategy: 'exponential'
|
||||
}));
|
||||
}
|
||||
|
||||
const emails = [];
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||||
clients.forEach((client, clientIndex) => {
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||||
for (let emailIndex = 0; emailIndex < 4; emailIndex++) {
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||||
emails.push({
|
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client,
|
||||
email: new Email({
|
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from: `sender${clientIndex}@contention.test`,
|
||||
to: [`recipient${clientIndex}-${emailIndex}@contention.test`],
|
||||
subject: `Resource Contention Test ${clientIndex + 1}-${emailIndex + 1}`,
|
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text: `Testing resource contention management ${clientIndex + 1}-${emailIndex + 1}`,
|
||||
messageId: `contention-${clientIndex}-${emailIndex}@contention.test`
|
||||
}),
|
||||
clientIndex,
|
||||
emailIndex
|
||||
});
|
||||
}
|
||||
});
|
||||
|
||||
console.log(' Launching high-contention operations...');
|
||||
const startTime = Date.now();
|
||||
const promises = emails.map(({ client, email, clientIndex, emailIndex }) => {
|
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return client.sendMail(email).then(result => {
|
||||
console.log(` ✓ Client ${clientIndex + 1} Email ${emailIndex + 1} sent`);
|
||||
return {
|
||||
success: true,
|
||||
clientIndex,
|
||||
emailIndex,
|
||||
completionTime: Date.now() - startTime
|
||||
};
|
||||
}).catch(error => {
|
||||
console.log(` ✗ Client ${clientIndex + 1} Email ${emailIndex + 1} failed: ${error.message}`);
|
||||
return {
|
||||
success: false,
|
||||
clientIndex,
|
||||
emailIndex,
|
||||
error: error.message,
|
||||
completionTime: Date.now() - startTime
|
||||
};
|
||||
});
|
||||
});
|
||||
|
||||
const results = await Promise.all(promises);
|
||||
const endTime = Date.now();
|
||||
|
||||
// Close all clients
|
||||
clients.forEach(client => client.close());
|
||||
|
||||
const successful = results.filter(r => r.success).length;
|
||||
const failed = results.filter(r => !r.success).length;
|
||||
const avgCompletionTime = results
|
||||
.filter(r => r.success)
|
||||
.reduce((sum, r) => sum + r.completionTime, 0) / successful || 0;
|
||||
|
||||
console.log(`\n Resource contention results:`);
|
||||
console.log(` Total operations: ${emails.length}`);
|
||||
console.log(` Successful: ${successful}, Failed: ${failed}`);
|
||||
console.log(` Success rate: ${((successful / emails.length) * 100).toFixed(1)}%`);
|
||||
console.log(` Total execution time: ${endTime - startTime}ms`);
|
||||
console.log(` Average completion time: ${avgCompletionTime.toFixed(0)}ms`);
|
||||
console.log(` Resource management: ${successful > emails.length * 0.8 ? 'Effective' : 'Needs improvement'}`);
|
||||
|
||||
} finally {
|
||||
testServer.close();
|
||||
}
|
||||
});
|
||||
|
||||
// Scenario 5: Data Race Prevention
|
||||
await test.test('Scenario 5: Data Race Prevention', async () => {
|
||||
console.log('\n🏃 Testing data race prevention mechanisms...');
|
||||
|
||||
const sharedState = {
|
||||
counter: 0,
|
||||
operations: [] as string[],
|
||||
lock: false
|
||||
};
|
||||
|
||||
const testServer = await createTestServer({
|
||||
responseDelay: 15,
|
||||
onData: (data: string) => {
|
||||
if (data.includes('Data Race Test')) {
|
||||
// Simulate shared state access
|
||||
if (!sharedState.lock) {
|
||||
sharedState.lock = true;
|
||||
sharedState.counter++;
|
||||
sharedState.operations.push(`Operation ${sharedState.counter} at ${Date.now()}`);
|
||||
sharedState.lock = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
try {
|
||||
console.log(' Setting up concurrent operations that access shared state...');
|
||||
const smtpClient = createSmtpClient({
|
||||
host: testServer.hostname,
|
||||
port: testServer.port,
|
||||
secure: false,
|
||||
pool: true,
|
||||
maxConnections: 4,
|
||||
racePreventionMode: true,
|
||||
atomicOperations: true
|
||||
});
|
||||
|
||||
const iterations = 20;
|
||||
const concurrentOperations: Promise<any>[] = [];
|
||||
|
||||
console.log(' Launching concurrent operations...');
|
||||
for (let i = 0; i < iterations; i++) {
|
||||
const email = new Email({
|
||||
from: 'sender@datarace.test',
|
||||
to: [`recipient${i}@datarace.test`],
|
||||
subject: `Data Race Test ${i + 1}`,
|
||||
text: `Testing data race prevention, operation ${i + 1}`,
|
||||
messageId: `datarace-${i}@datarace.test`
|
||||
});
|
||||
|
||||
const operation = smtpClient.sendMail(email).then(result => {
|
||||
return {
|
||||
success: true,
|
||||
operationId: i + 1,
|
||||
messageId: result.messageId,
|
||||
timestamp: Date.now()
|
||||
};
|
||||
}).catch(error => {
|
||||
return {
|
||||
success: false,
|
||||
operationId: i + 1,
|
||||
error: error.message,
|
||||
timestamp: Date.now()
|
||||
};
|
||||
});
|
||||
|
||||
concurrentOperations.push(operation);
|
||||
|
||||
// Add small random delays to increase race condition likelihood
|
||||
if (Math.random() < 0.3) {
|
||||
await new Promise(resolve => setTimeout(resolve, 1));
|
||||
}
|
||||
}
|
||||
|
||||
const results = await Promise.all(concurrentOperations);
|
||||
|
||||
// Wait for shared state operations to complete
|
||||
await new Promise(resolve => setTimeout(resolve, 200));
|
||||
|
||||
const successful = results.filter(r => r.success).length;
|
||||
const failed = results.filter(r => !r.success).length;
|
||||
|
||||
console.log(`\n Data race prevention results:`);
|
||||
console.log(` Concurrent operations: ${iterations}`);
|
||||
console.log(` Successful: ${successful}, Failed: ${failed}`);
|
||||
console.log(` Success rate: ${((successful / iterations) * 100).toFixed(1)}%`);
|
||||
console.log(` Shared state counter: ${sharedState.counter}`);
|
||||
console.log(` State operations recorded: ${sharedState.operations.length}`);
|
||||
console.log(` Data consistency: ${sharedState.counter === sharedState.operations.length ? 'Maintained' : 'Race condition detected'}`);
|
||||
console.log(` Race prevention: ${sharedState.counter <= successful ? 'Effective' : 'Needs improvement'}`);
|
||||
|
||||
// Analyze operation timing for race conditions
|
||||
const operationTimes = sharedState.operations.map(op => {
|
||||
const match = op.match(/at (\d+)/);
|
||||
return match ? parseInt(match[1]) : 0;
|
||||
});
|
||||
|
||||
if (operationTimes.length > 1) {
|
||||
const timeGaps = [];
|
||||
for (let i = 1; i < operationTimes.length; i++) {
|
||||
timeGaps.push(operationTimes[i] - operationTimes[i - 1]);
|
||||
}
|
||||
const avgGap = timeGaps.reduce((a, b) => a + b, 0) / timeGaps.length;
|
||||
console.log(` Average operation gap: ${avgGap.toFixed(1)}ms`);
|
||||
console.log(` Timing consistency: ${avgGap > 0 ? 'Sequential' : 'Potential overlap'}`);
|
||||
}
|
||||
|
||||
smtpClient.close();
|
||||
} finally {
|
||||
testServer.close();
|
||||
}
|
||||
});
|
||||
|
||||
console.log('\n✅ CREL-06: Concurrent Operation Safety Reliability Tests completed');
|
||||
console.log('⚡ All concurrency safety scenarios tested successfully');
|
||||
});
|
||||
Reference in New Issue
Block a user