node/test/simple/test-c-ares.js

var common = require('../common');
var assert = require('assert');

var dns = require('dns');


// Try resolution without callback

dns.getHostByName('localhost', function(error, result) {
  console.dir(result);
  assert.deepEqual(['127.0.0.1'], result);
});

dns.getHostByName('127.0.0.1', function(error, result) {
  console.dir(result);
  assert.deepEqual(['127.0.0.1'], result);
});

dns.lookup(null, function(error, result, addressType) {
  assert.equal(null, result);
  assert.equal(4, addressType);
});

dns.lookup('127.0.0.1', function(error, result, addressType) {
  assert.equal('127.0.0.1', result);
  assert.equal(4, addressType);
});

dns.lookup('::1', function(error, result, addressType) {
  assert.equal('::1', result);
  assert.equal(6, addressType);
});

dns.lookup('ipv6.google.com', function(error, result, addressType) {
  if (error) throw error;
  console.dir(arguments);
  //assert.equal('string', typeof result);
  assert.equal(6, addressType);
});