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test: harden test-dgram-bind-shared-ports
* add `mustCall` and `mustNotCall` to all callbacks * added `known_issue` for port binding PR-URL: #13100 Refs: #13055 Refs: #12999 Refs: #13526 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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'use strict'; | ||
const common = require('../common'); | ||
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// This test should fail because at present `cluster` does not know how to share | ||
// a socket when `worker1` binds with `port: 0`, and others try to bind to the | ||
// assigned port number from `worker1` | ||
// | ||
// *Note*: since this is a `known_issue` we try to swallow all errors except | ||
// the one we are interested in | ||
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const assert = require('assert'); | ||
const cluster = require('cluster'); | ||
const dgram = require('dgram'); | ||
const BYE = 'bye'; | ||
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if (cluster.isMaster) { | ||
const worker1 = cluster.fork(); | ||
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// verify that Windows doesn't support this scenario | ||
worker1.on('error', (err) => { | ||
if (err.code === 'ENOTSUP') throw err; | ||
}); | ||
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worker1.on('message', (msg) => { | ||
if (typeof msg !== 'object') process.exit(0); | ||
if (msg.message !== 'success') process.exit(0); | ||
if (typeof msg.port1 !== 'number') process.exit(0); | ||
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const worker2 = cluster.fork({ PRT1: msg.port1 }); | ||
worker2.on('message', () => process.exit(0)); | ||
worker2.on('exit', (code, signal) => { | ||
// this is the droid we are looking for | ||
assert.strictEqual(code, 0); | ||
assert.strictEqual(signal, null); | ||
}); | ||
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// cleanup anyway | ||
process.on('exit', () => { | ||
worker1.send(BYE); | ||
worker2.send(BYE); | ||
}); | ||
}); | ||
// end master code | ||
} else { | ||
// worker code | ||
process.on('message', (msg) => msg === BYE && process.exit(0)); | ||
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// first worker will bind to '0', second will try the assigned port and fail | ||
const PRT1 = process.env.PRT1 || 0; | ||
const socket1 = dgram.createSocket('udp4', () => {}); | ||
socket1.on('error', PRT1 === 0 ? () => {} : assert.fail); | ||
socket1.bind( | ||
{ address: common.localhostIPv4, port: PRT1, exclusive: false }, | ||
() => process.send({ message: 'success', port1: socket1.address().port }) | ||
); | ||
} |