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nodejs/test/parallel/test-dgram-close.js
cjihrig 04b4d15b39 test: use mustCall() for simple flow tracking
Many of the tests use variables to track when callback functions
are invoked or events are emitted. These variables are then
asserted on process exit. This commit replaces this pattern in
straightforward cases with common.mustCall(). This makes the
tests easier to reason about, leads to a net reduction in lines
of code, and uncovered a few bugs in tests. This commit also
replaces some callbacks that should never be called with
common.fail().

PR-URL: https://github.com/nodejs/node/pull/7753
Reviewed-By: Wyatt Preul <wpreul@gmail.com>
Reviewed-By: Minwoo Jung <jmwsoft@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2016-07-18 17:14:16 -04:00

25 lines
691 B
JavaScript

'use strict';
// Ensure that if a dgram socket is closed before the DNS lookup completes, it
// won't crash.
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');
var buf = Buffer.alloc(1024, 42);
var socket = dgram.createSocket('udp4');
var handle = socket._handle;
socket.send(buf, 0, buf.length, common.PORT, 'localhost');
assert.strictEqual(socket.close(common.mustCall(function() {})), socket);
socket.on('close', common.mustCall(function() {}));
socket = null;
// Verify that accessing handle after closure doesn't throw
setImmediate(function() {
setImmediate(function() {
console.log('Handle fd is: ', handle.fd);
});
});