'use strict';

const common = require('../common');

const assert = require('assert');

const dns = require('dns');

dns.setDefaultResultOrder('ipv4first');

let dnsOrder = dns.getDefaultResultOrder();

assert.ok(dnsOrder === 'ipv4first');

dns.setDefaultResultOrder('ipv6first');

dnsOrder = dns.getDefaultResultOrder();

assert.ok(dnsOrder === 'ipv6first');

dns.setDefaultResultOrder('verbatim');

dnsOrder = dns.getDefaultResultOrder();

assert.ok(dnsOrder === 'verbatim');

{

(async function() {

const result = await dns.promises.lookup('localhost');

const result1 = await dns.promises.lookup('localhost', { order: 'verbatim' });

assert.ok(result !== undefined);

assert.ok(result1 !== undefined);

assert.ok(result.address === result1.address);

assert.ok(result.family === result1.family);

})().then(common.mustCall());

}

{

(async function() {

const result = await dns.promises.lookup('localhost', { order: 'ipv4first' });

assert.ok(result !== undefined);

assert.ok(result.family === 4);

})().then(common.mustCall());

}

if (common.hasIPv6) {

(async function() {

const result = await dns.promises.lookup('localhost', { order: 'ipv6first' });

assert.ok(result !== undefined);

assert.ok(result.family === 6);

})().then(common.mustCall());

}