author Byron Campen [:bwc] <>
Mon, 29 Apr 2019 15:51:30 +0000
changeset 471964 f8a6a019f873aaebc47740ea1423c0985aaedf69
parent 469640 c9c0c6f2eed54a187e124942e53c3660b4cf17d8
permissions -rw-r--r--
Bug 1531803 - Part 3: Only set track id on JsepTrack if we're configured to emit track ids in SDP, and simplify some code. r=mjf Differential Revision:

  <title>Test for Bug 640387</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<a target="_blank" href="">Mozilla Bug 640387</a>

<script type='application/javascript'>

function* test() {
  /* Spin the event loop so we get out of the onload handler. */
  SimpleTest.executeSoon(function() {; });
  yield undefined;

  popup.history.pushState("", "", "#hash1");
  popup.history.pushState("", "", "#hash2");

  // Now the history looks like:
  //   file_bug640387.html
  //   file_bug640387.html#hash1
  //   file_bug640387.html#hash2  <-- current

  // Going back should trigger a hashchange, which will wake us up from the
  // yield.
  yield undefined;
  ok(true, "Got first hashchange.");

  // Going back should wake us up again.
  yield undefined;
  ok(true, "Got second hashchange.");

  // Now the history looks like:
  //   file_bug640387.html        <-- current
  //   file_bug640387.html#hash1
  //   file_bug640387.html#hash2

  // Going forward should trigger a hashchange.
  yield undefined;
  ok(true, "Got third hashchange.");

  // Now modify the history so it looks like:
  //   file_bug640387.html
  //   file_bug640387.html#hash1
  //   file_bug640387.html#hash1  <-- current
  popup.history.pushState("", "", "#hash1");

  // Now when we go back, we should not get a hashchange.  Instead, wait for a
  // popstate.  We need to asynchronously go back because popstate is fired
  // sync.
  gHashchangeExpected = false;
  gCallbackOnPopstate = true;
  SimpleTest.executeSoon(function() { popup.history.back(); });
  yield undefined;
  ok(true, "Got popstate.");
  gCallbackOnPopstate = false;

  // Spin the event loop so hashchange has a chance to fire, if it's going to.
  SimpleTest.executeSoon(function() {; });
  yield undefined;


var gGen = null;
function childLoad() {
  gGen = test();;

var gHashchangeExpected = true;
function childHashchange() {
  if (gHashchangeExpected) {;
  } else {
    ok(false, "Got hashchange when we weren't expecting one.");

var gCallbackOnPopstate = false;
function childPopstate() {
  if (gCallbackOnPopstate) {;

/* We need to run this test in a popup, because navigating an iframe
 * back/forwards tends to cause intermittent orange. */
var popup ="file_bug640387.html");

/* Control now flows up to childLoad(), called once the popup loads. */