node/test/parallel/test-net-dns-custom-lookup.js

41 lines
885 B
JavaScript

var common = require('../common');
var assert = require('assert');
var net = require('net');
var dns = require('dns');
var ok = false;
function check(addressType, cb) {
var server = net.createServer(function(client) {
client.end();
server.close();
cb && cb();
});
var address = addressType === 4 ? '127.0.0.1' : '::1';
server.listen(common.PORT, address, function() {
net.connect({
port: common.PORT,
host: 'localhost',
lookup: lookup
}).on('lookup', function(err, ip, type) {
assert.equal(err, null);
assert.equal(ip, address);
assert.equal(type, addressType);
ok = true;
});
});
function lookup(host, dnsopts, cb) {
dnsopts.family = addressType;
dns.lookup(host, dnsopts, cb);
}
}
check(4, function() {
common.hasIPv6 && check(6);
});
process.on('exit', function() {
assert.ok(ok);
});