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| Current File : //proc/self/root/proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-dns-lookupService.js |
// Flags: --expose-internals
'use strict';
const common = require('../common');
const assert = require('assert');
const { internalBinding } = require('internal/test/binding');
const cares = internalBinding('cares_wrap');
const { UV_ENOENT } = internalBinding('uv');
// Stub `getnameinfo` to *always* error.
cares.getnameinfo = () => UV_ENOENT;
// Because dns promises is attached lazily,
// and turn accesses getnameinfo on init
// but this lazy access is triggered by ES named
// instead of lazily itself, we must require
// dns after hooking cares
const dns = require('dns');
assert.throws(
() => dns.lookupService('127.0.0.1', 80, common.mustNotCall()),
{
code: 'ENOENT',
message: 'getnameinfo ENOENT 127.0.0.1',
syscall: 'getnameinfo'
}
);
assert.rejects(
dns.promises.lookupService('127.0.0.1', 80),
{
code: 'ENOENT',
message: 'getnameinfo ENOENT 127.0.0.1',
syscall: 'getnameinfo'
}
);
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