node/test/sequential/test-cluster-net-listen-ipv...

62 lines
1.7 KiB
JavaScript

'use strict';
const common = require('../common');
if (!common.hasIPv6)
common.skip('no IPv6 support');
const assert = require('assert');
const cluster = require('cluster');
const net = require('net');
const Countdown = require('../common/countdown');
// This test ensures that the `ipv6Only` option in `net.Server.listen()`
// works as expected when we use cluster with `SCHED_RR` schedulingPolicy.
cluster.schedulingPolicy = cluster.SCHED_RR;
const host = '::';
const WORKER_ACCOUNT = 3;
if (cluster.isMaster) {
const workers = new Map();
let address;
const countdown = new Countdown(WORKER_ACCOUNT, () => {
// Make sure the `ipv6Only` option works.
const server = net.createServer().listen({
host: '0.0.0.0',
port: address.port,
}, common.mustCall(() => {
// Exit.
server.close();
workers.forEach((worker) => {
worker.disconnect();
});
}));
});
for (let i = 0; i < WORKER_ACCOUNT; i += 1) {
const worker = cluster.fork().on('exit', common.mustCall((statusCode) => {
assert.strictEqual(statusCode, 0);
})).on('listening', common.mustCall((workerAddress) => {
if (!address) {
address = workerAddress;
} else {
assert.deepStrictEqual(workerAddress, address);
}
countdown.dec();
}));
workers.set(i, worker);
}
} else {
// As the cluster member has the potential to grab any port
// from the environment, this can cause collision when master
// obtains the port from cluster member and tries to listen on.
// So move this to sequential, and provide a static port.
// Refs: https://github.com/nodejs/node/issues/25813
net.createServer().listen({
host: host,
port: common.PORT,
ipv6Only: true,
}, common.mustCall());
}