content/media/webspeech/recognition/test/test_nested_eventloop.html@44a2da4a2ab2 (annotated)
content/media/webspeech/recognition/test/test_nested_eventloop.html
Fri, 16 Jan 2015 04:50:19 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 04:50:19 +0100
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
- permissions
- -rw-r--r--
Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32
| michael@0 | 1 | <!DOCTYPE HTML> |
| michael@0 | 2 | <html> |
| michael@0 | 3 | <!-- |
| michael@0 | 4 | https://bugzilla.mozilla.org/show_bug.cgi?id=650295 |
| michael@0 | 5 | --> |
| michael@0 | 6 | <head> |
| michael@0 | 7 | <meta charset="utf-8"> |
| michael@0 | 8 | <title>Test for Bug 650295 -- Spin the event loop from inside a callback</title> |
| michael@0 | 9 | <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 10 | <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> |
| michael@0 | 11 | <script type="application/javascript" src="head.js"></script> |
| michael@0 | 12 | </head> |
| michael@0 | 13 | <body> |
| michael@0 | 14 | <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=650295">Mozilla Bug 650295</a> |
| michael@0 | 15 | <p id="display"></p> |
| michael@0 | 16 | <div id="content" style="display: none"> |
| michael@0 | 17 | |
| michael@0 | 18 | </div> |
| michael@0 | 19 | <pre id="test"> |
| michael@0 | 20 | <script type="text/javascript"> |
| michael@0 | 21 | SimpleTest.waitForExplicitFinish(); |
| michael@0 | 22 | |
| michael@0 | 23 | /* |
| michael@0 | 24 | * window.showModalDialog() can be used to spin the event loop, causing |
| michael@0 | 25 | * queued SpeechEvents (such as those created by calls to start(), stop() |
| michael@0 | 26 | * or abort()) to be processed immediately. |
| michael@0 | 27 | * When this is done from inside DOM event handlers, it is possible to |
| michael@0 | 28 | * cause reentrancy in our C++ code, which we should be able to withstand. |
| michael@0 | 29 | */ |
| michael@0 | 30 | |
| michael@0 | 31 | function abortAndSpinEventLoop(evt, sr) { |
| michael@0 | 32 | sr.abort(); |
| michael@0 | 33 | window.showModalDialog("javascript:window.close()"); |
| michael@0 | 34 | } |
| michael@0 | 35 | |
| michael@0 | 36 | function doneFunc() { |
| michael@0 | 37 | // Trigger gc now and wait some time to make sure this test gets the blame |
| michael@0 | 38 | // for any assertions caused by showModalDialog |
| michael@0 | 39 | // |
| michael@0 | 40 | // NB - The assertions should be gone, but this looks too scary to touch |
| michael@0 | 41 | // during batch cleanup. |
| michael@0 | 42 | var count = 0, GC_COUNT = 4; |
| michael@0 | 43 | |
| michael@0 | 44 | function triggerGCOrFinish() { |
| michael@0 | 45 | SpecialPowers.gc(); |
| michael@0 | 46 | count++; |
| michael@0 | 47 | |
| michael@0 | 48 | if (count == GC_COUNT) { |
| michael@0 | 49 | SimpleTest.finish(); |
| michael@0 | 50 | } |
| michael@0 | 51 | } |
| michael@0 | 52 | |
| michael@0 | 53 | for (var i = 0; i < GC_COUNT; i++) { |
| michael@0 | 54 | setTimeout(triggerGCOrFinish, 0); |
| michael@0 | 55 | } |
| michael@0 | 56 | } |
| michael@0 | 57 | |
| michael@0 | 58 | /* |
| michael@0 | 59 | * We start by performing a normal start, then abort from the audiostart |
| michael@0 | 60 | * callback and force the EVENT_ABORT to be processed while still inside |
| michael@0 | 61 | * the event handler. This causes the recording to stop, which raises |
| michael@0 | 62 | * the audioend and (later on) end events. |
| michael@0 | 63 | * Then, we abort (once again spinning the event loop) from the audioend |
| michael@0 | 64 | * handler, attempting to cause a re-entry into the abort code. This second |
| michael@0 | 65 | * call should be ignored, and we get the end callback and finish. |
| michael@0 | 66 | */ |
| michael@0 | 67 | |
| michael@0 | 68 | performTest({ |
| michael@0 | 69 | eventsToRequest: [ |
| michael@0 | 70 | "EVENT_START", |
| michael@0 | 71 | "EVENT_AUDIO_DATA", |
| michael@0 | 72 | ], |
| michael@0 | 73 | expectedEvents: { |
| michael@0 | 74 | "audiostart": abortAndSpinEventLoop, |
| michael@0 | 75 | "audioend": abortAndSpinEventLoop, |
| michael@0 | 76 | "end": null |
| michael@0 | 77 | }, |
| michael@0 | 78 | doneFunc: doneFunc, |
| michael@0 | 79 | prefs: [["media.webspeech.test.fake_fsm_events", true], |
| michael@0 | 80 | ["media.webspeech.test.fake_recognition_service", true]] |
| michael@0 | 81 | }); |
| michael@0 | 82 | |
| michael@0 | 83 | </script> |
| michael@0 | 84 | </pre> |
| michael@0 | 85 | </body> |
| michael@0 | 86 | </html> |
