mirror of https://github.com/nodejs/node.git
94 lines
2.9 KiB
JavaScript
94 lines
2.9 KiB
JavaScript
// Flags: --expose-internals
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { internalBinding } = require('internal/test/binding');
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const cares = internalBinding('cares_wrap');
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const { promisify } = require('util');
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// Test that `dns.setDefaultResultOrder()` and
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// `dns.promises.setDefaultResultOrder()` works as expected.
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const originalGetaddrinfo = cares.getaddrinfo;
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const calls = [];
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cares.getaddrinfo = common.mustCallAtLeast((...args) => {
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calls.push(args);
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originalGetaddrinfo(...args);
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}, 1);
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const dns = require('dns');
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const dnsPromises = dns.promises;
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let verbatim;
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// We want to test the parameter of verbatim only so that we
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// ignore possible errors here.
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function allowFailed(fn) {
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return fn.catch((_err) => {
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//
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});
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}
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assert.throws(() => dns.setDefaultResultOrder('my_order'), {
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code: 'ERR_INVALID_ARG_VALUE',
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});
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assert.throws(() => dns.promises.setDefaultResultOrder('my_order'), {
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code: 'ERR_INVALID_ARG_VALUE',
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});
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assert.throws(() => dns.setDefaultResultOrder(4), {
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code: 'ERR_INVALID_ARG_VALUE',
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});
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assert.throws(() => dns.promises.setDefaultResultOrder(4), {
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code: 'ERR_INVALID_ARG_VALUE',
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});
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(async () => {
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let callsLength = 0;
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const checkParameter = (expected) => {
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assert.strictEqual(calls.length, callsLength + 1);
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verbatim = calls[callsLength][4];
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assert.strictEqual(verbatim, expected);
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callsLength += 1;
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};
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dns.setDefaultResultOrder('verbatim');
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await allowFailed(promisify(dns.lookup)('example.org'));
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checkParameter(true);
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await allowFailed(dnsPromises.lookup('example.org'));
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checkParameter(true);
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await allowFailed(promisify(dns.lookup)('example.org', {}));
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checkParameter(true);
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await allowFailed(dnsPromises.lookup('example.org', {}));
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checkParameter(true);
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dns.setDefaultResultOrder('ipv4first');
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await allowFailed(promisify(dns.lookup)('example.org'));
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checkParameter(false);
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await allowFailed(dnsPromises.lookup('example.org'));
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checkParameter(false);
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await allowFailed(promisify(dns.lookup)('example.org', {}));
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checkParameter(false);
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await allowFailed(dnsPromises.lookup('example.org', {}));
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checkParameter(false);
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dns.promises.setDefaultResultOrder('verbatim');
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await allowFailed(promisify(dns.lookup)('example.org'));
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checkParameter(true);
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await allowFailed(dnsPromises.lookup('example.org'));
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checkParameter(true);
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await allowFailed(promisify(dns.lookup)('example.org', {}));
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checkParameter(true);
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await allowFailed(dnsPromises.lookup('example.org', {}));
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checkParameter(true);
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dns.promises.setDefaultResultOrder('ipv4first');
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await allowFailed(promisify(dns.lookup)('example.org'));
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checkParameter(false);
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await allowFailed(dnsPromises.lookup('example.org'));
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checkParameter(false);
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await allowFailed(promisify(dns.lookup)('example.org', {}));
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checkParameter(false);
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await allowFailed(dnsPromises.lookup('example.org', {}));
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checkParameter(false);
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})().then(common.mustCall());
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