node/test/parallel/test-http-dns-error.js
Ruben Bridgewater a158d412b3
dns: report out of memory properly
This addresses a part of a TODO by properly reporting an out of
memory error to the user instead of reporting `ENOTFOUND`.

PR-URL: https://github.com/nodejs/node/pull/20317
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2018-04-30 16:49:52 +02:00

81 lines
2.4 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const http = require('http');
const https = require('https');
const host = '*'.repeat(64);
const MAX_TRIES = 5;
let errCode = 'ENOTFOUND';
if (common.isOpenBSD)
errCode = 'EAI_FAIL';
function tryGet(mod, tries) {
// Bad host name should not throw an uncatchable exception.
// Ensure that there is time to attach an error listener.
const req = mod.get({ host: host, port: 42 }, common.mustNotCall());
req.on('error', common.mustCall(function(err) {
if (err.code === 'EAGAIN' && tries < MAX_TRIES) {
tryGet(mod, ++tries);
return;
}
assert.strictEqual(err.code, errCode);
}));
// http.get() called req1.end() for us
}
function tryRequest(mod, tries) {
const req = mod.request({
method: 'GET',
host: host,
port: 42
}, common.mustNotCall());
req.on('error', common.mustCall(function(err) {
if (err.code === 'EAGAIN' && tries < MAX_TRIES) {
tryRequest(mod, ++tries);
return;
}
assert.strictEqual(err.code, errCode);
}));
req.end();
}
function test(mod) {
tryGet(mod, 0);
tryRequest(mod, 0);
}
if (common.hasCrypto) {
test(https);
} else {
common.printSkipMessage('missing crypto');
}
test(http);