test_error_codes.js

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

*/

var prefs = Services.prefs;

function asyncXHR(expectedStatus, nextTestFunc) {

  var xhr = new XMLHttpRequest();

  xhr.open("GET", "http://localhost:4444/test_error_code.xml", true);

  var sawError = false;

  xhr.addEventListener("loadend", function doAsyncRequest_onLoad() {

    Assert.ok(sawError, "Should have received an error");

    nextTestFunc();

});

  xhr.addEventListener("error", function doAsyncRequest_onError(event) {

    var request = event.target.channel.QueryInterface(Ci.nsIRequest);

    Assert.equal(request.status, expectedStatus);

    sawError = true;

});

  xhr.send(null);

function run_test() {

  do_test_pending();

  do_timeout(0, run_test_pt1);

// network offline

function run_test_pt1() {

  try {

    Services.io.manageOfflineStatus = false;

  } catch (e) {}

  Services.io.offline = true;

  prefs.setBoolPref("network.dns.offline-localhost", false);

  // We always resolve localhost as it's hardcoded without the following pref:

  prefs.setBoolPref("network.proxy.allow_hijacking_localhost", true);

  dump("Testing error returned by async XHR when the network is offline\n");

  asyncXHR(Cr.NS_ERROR_OFFLINE, run_test_pt2);

// connection refused

function run_test_pt2() {

  Services.io.offline = false;

  prefs.clearUserPref("network.dns.offline-localhost");

  prefs.clearUserPref("network.proxy.allow_hijacking_localhost");

  dump("Testing error returned by aync XHR when the connection is refused\n");

  asyncXHR(Cr.NS_ERROR_CONNECTION_REFUSED, end_test);

function end_test() {

  do_test_finished();