1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/webspeech/recognition/test/test_nested_eventloop.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,86 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=650295
1.8 +-->
1.9 +<head>
1.10 + <meta charset="utf-8">
1.11 + <title>Test for Bug 650295 -- Spin the event loop from inside a callback</title>
1.12 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.13 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.14 + <script type="application/javascript" src="head.js"></script>
1.15 +</head>
1.16 +<body>
1.17 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=650295">Mozilla Bug 650295</a>
1.18 +<p id="display"></p>
1.19 +<div id="content" style="display: none">
1.20 +
1.21 +</div>
1.22 +<pre id="test">
1.23 +<script type="text/javascript">
1.24 + SimpleTest.waitForExplicitFinish();
1.25 +
1.26 + /*
1.27 + * window.showModalDialog() can be used to spin the event loop, causing
1.28 + * queued SpeechEvents (such as those created by calls to start(), stop()
1.29 + * or abort()) to be processed immediately.
1.30 + * When this is done from inside DOM event handlers, it is possible to
1.31 + * cause reentrancy in our C++ code, which we should be able to withstand.
1.32 + */
1.33 +
1.34 + function abortAndSpinEventLoop(evt, sr) {
1.35 + sr.abort();
1.36 + window.showModalDialog("javascript:window.close()");
1.37 + }
1.38 +
1.39 + function doneFunc() {
1.40 + // Trigger gc now and wait some time to make sure this test gets the blame
1.41 + // for any assertions caused by showModalDialog
1.42 + //
1.43 + // NB - The assertions should be gone, but this looks too scary to touch
1.44 + // during batch cleanup.
1.45 + var count = 0, GC_COUNT = 4;
1.46 +
1.47 + function triggerGCOrFinish() {
1.48 + SpecialPowers.gc();
1.49 + count++;
1.50 +
1.51 + if (count == GC_COUNT) {
1.52 + SimpleTest.finish();
1.53 + }
1.54 + }
1.55 +
1.56 + for (var i = 0; i < GC_COUNT; i++) {
1.57 + setTimeout(triggerGCOrFinish, 0);
1.58 + }
1.59 + }
1.60 +
1.61 + /*
1.62 + * We start by performing a normal start, then abort from the audiostart
1.63 + * callback and force the EVENT_ABORT to be processed while still inside
1.64 + * the event handler. This causes the recording to stop, which raises
1.65 + * the audioend and (later on) end events.
1.66 + * Then, we abort (once again spinning the event loop) from the audioend
1.67 + * handler, attempting to cause a re-entry into the abort code. This second
1.68 + * call should be ignored, and we get the end callback and finish.
1.69 + */
1.70 +
1.71 + performTest({
1.72 + eventsToRequest: [
1.73 + "EVENT_START",
1.74 + "EVENT_AUDIO_DATA",
1.75 + ],
1.76 + expectedEvents: {
1.77 + "audiostart": abortAndSpinEventLoop,
1.78 + "audioend": abortAndSpinEventLoop,
1.79 + "end": null
1.80 + },
1.81 + doneFunc: doneFunc,
1.82 + prefs: [["media.webspeech.test.fake_fsm_events", true],
1.83 + ["media.webspeech.test.fake_recognition_service", true]]
1.84 + });
1.85 +
1.86 +</script>
1.87 +</pre>
1.88 +</body>
1.89 +</html>
