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df08779e0d
This commit removes `common.crashOnUnhandledRejection()` and adds `common.disableCrashOnUnhandledRejection()`. To reduce the risk of mistakes and make writing tests that involve promises simpler, always install the unhandledRejection hook in tests and provide a way to disable it for the rare cases where it's needed. PR-URL: https://github.com/nodejs/node/pull/21849 Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
86 lines
2.2 KiB
JavaScript
86 lines
2.2 KiB
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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const net = require('net');
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// Sets the server's maxConnections property to 1.
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// Open 2 connections (connection 0 and connection 1).
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// Connection 0 should be accepted.
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// Connection 1 should be rejected.
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// Closes connection 0.
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// Open 2 more connections (connection 2 and 3).
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// Connection 2 should be accepted.
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// Connection 3 should be rejected.
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const connections = [];
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const received = [];
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const sent = [];
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function createConnection(index) {
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console.error(`creating connection ${index}`);
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return new Promise(function(resolve, reject) {
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const connection = net.createConnection(server.address().port, function() {
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const msg = String(index);
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console.error(`sending message: ${msg}`);
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this.write(msg);
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sent.push(msg);
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});
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connection.on('error', function(err) {
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assert.strictEqual(err.code, 'ECONNRESET');
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resolve();
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});
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connection.on('data', function(e) {
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console.error(`connection ${index} received response`);
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resolve();
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});
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connection.on('end', function() {
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console.error(`ending ${index}`);
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resolve();
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});
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connections[index] = connection;
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});
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}
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function closeConnection(index) {
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console.error(`closing connection ${index}`);
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return new Promise(function(resolve, reject) {
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connections[index].on('end', function() {
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resolve();
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});
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connections[index].end();
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});
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}
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const server = net.createServer(function(socket) {
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socket.on('data', function(data) {
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console.error(`received message: ${data}`);
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received.push(String(data));
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socket.write('acknowledged');
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});
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});
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server.maxConnections = 1;
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server.listen(0, function() {
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createConnection(0)
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.then(createConnection.bind(null, 1))
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.then(closeConnection.bind(null, 0))
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.then(createConnection.bind(null, 2))
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.then(createConnection.bind(null, 3))
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.then(server.close.bind(server))
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.then(closeConnection.bind(null, 2));
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});
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process.on('exit', function() {
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// Confirm that all connections tried to send data...
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assert.deepStrictEqual(sent, ['0', '1', '2', '3']);
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// ...but that only connections 0 and 2 were successful.
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assert.deepStrictEqual(received, ['0', '2']);
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});
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