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// Flags: --expose-internals --dns-result-order=ipv4first
'use strict';
const common = require('../common');
const assert = require('assert');
const { internalBinding } = require('internal/test/binding');
const cares = internalBinding('cares_wrap');
const { promisify } = require('util');
// Test that --dns-result-order=ipv4first works as expected.
const originalGetaddrinfo = cares.getaddrinfo;
const calls = [];
cares.getaddrinfo = common.mustCallAtLeast((...args) => {
calls.push(args);
originalGetaddrinfo(...args);
}, 1);
const dns = require('dns');
const dnsPromises = dns.promises;
let verbatim;
// We want to test the parameter of verbatim only so that we
// ignore possible errors here.
function allowFailed(fn) {
return fn.catch((_err) => {
//
});
}
(async () => {
let callsLength = 0;
const checkParameter = (expected) => {
assert.strictEqual(calls.length, callsLength + 1);
verbatim = calls[callsLength][4];
assert.strictEqual(verbatim, expected);
callsLength += 1;
};
await allowFailed(promisify(dns.lookup)('example.org'));
checkParameter(false);
await allowFailed(dnsPromises.lookup('example.org'));
checkParameter(false);
await allowFailed(promisify(dns.lookup)('example.org', {}));
checkParameter(false);
await allowFailed(dnsPromises.lookup('example.org', {}));
checkParameter(false);
})().then(common.mustCall());
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