dcrouter/test/suite/smtpserver_connection/test.cm-02.multiple-connections.ts
2025-05-25 19:05:43 +00:00

112 lines
3.9 KiB
TypeScript

import { tap, expect } from '@git.zone/tstest/tapbundle';
import { startTestServer, stopTestServer, type ITestServer } from '../../helpers/server.loader.js';
import { createConcurrentConnections, performSmtpHandshake, closeSmtpConnection } from '../../helpers/utils.js';
let testServer: ITestServer;
const CONCURRENT_COUNT = 10;
const TEST_PORT = 2527;
tap.test('setup - start SMTP server', async () => {
testServer = await startTestServer({
port: 2526
});
await new Promise(resolve => setTimeout(resolve, 1000));
expect(testServer.port).toEqual(2526);
});
tap.test('CM-02: Multiple Simultaneous Connections - server handles concurrent connections', async () => {
const startTime = Date.now();
try {
// Create multiple concurrent connections
console.log(`🔄 Creating ${CONCURRENT_COUNT} concurrent connections...`);
const sockets = await createConcurrentConnections(
testServer.hostname,
testServer.port,
CONCURRENT_COUNT
);
expect(sockets).toBeArray();
expect(sockets.length).toEqual(CONCURRENT_COUNT);
// Verify all connections are active
let activeCount = 0;
for (const socket of sockets) {
if (socket && !socket.destroyed) {
activeCount++;
}
}
expect(activeCount).toEqual(CONCURRENT_COUNT);
// Perform handshake on all connections
console.log('🤝 Performing handshake on all connections...');
const handshakePromises = sockets.map(socket =>
performSmtpHandshake(socket).catch(err => ({ error: err.message }))
);
const results = await Promise.all(handshakePromises);
const successCount = results.filter(r => Array.isArray(r)).length;
expect(successCount).toBeGreaterThan(0);
console.log(`${successCount}/${CONCURRENT_COUNT} connections completed handshake`);
// Close all connections
console.log('🔚 Closing all connections...');
await Promise.all(
sockets.map(socket => closeSmtpConnection(socket).catch(() => {}))
);
const duration = Date.now() - startTime;
console.log(`✅ Multiple connection test completed in ${duration}ms`);
} catch (error) {
console.error('❌ Multiple connection test failed:', error);
throw error;
}
});
// TODO: Enable this test when connection limits are implemented in the server
// tap.test('CM-02: Connection limit enforcement - verify max connections', async () => {
// const maxConnections = 5;
//
// // Start a new server with lower connection limit
// const limitedServer = await startTestServer({ port: TEST_PORT });
//
// await new Promise(resolve => setTimeout(resolve, 1000));
//
// try {
// // Try to create more connections than allowed
// const attemptCount = maxConnections + 5;
// console.log(`🔄 Attempting ${attemptCount} connections (limit: ${maxConnections})...`);
//
// const connectionPromises = [];
// for (let i = 0; i < attemptCount; i++) {
// connectionPromises.push(
// createConcurrentConnections(limitedServer.hostname, limitedServer.port, 1)
// .then(() => ({ success: true, index: i }))
// .catch(err => ({ success: false, index: i, error: err.message }))
// );
// }
//
// const results = await Promise.all(connectionPromises);
// const successfulConnections = results.filter(r => r.success).length;
// const failedConnections = results.filter(r => !r.success).length;
//
// console.log(`✅ Successful connections: ${successfulConnections}`);
// console.log(`❌ Failed connections: ${failedConnections}`);
//
// // Some connections should fail due to limit
// expect(failedConnections).toBeGreaterThan(0);
//
// } finally {
// await stopTestServer(limitedServer);
// }
// });
tap.test('cleanup - stop SMTP server', async () => {
await stopTestServer(testServer);
console.log('✅ Test server stopped');
});
export default tap.start();