test_speech_synthesis.html (3741B)
1 <!DOCTYPE HTML> 2 <html> 3 <!-- 4 https://bugzilla.mozilla.org/show_bug.cgi?id=1333641 5 --> 6 <head> 7 <meta charset="utf-8"> 8 <title>Test for Bug 1333641</title> 9 <script src="/tests/SimpleTest/SimpleTest.js"></script> 10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> 11 <script type="application/javascript"> 12 13 /** Test for Bug 1333641 */ 14 SimpleTest.waitForExplicitFinish(); 15 window.onload = setupSpeechSynthesis; 16 17 // This function setup the speechSynthesis and flip 'privacy.resistFingerprinting' 18 // after it has been setup correctly. 19 function setupSpeechSynthesis() { 20 window.speechSynthesis.addEventListener("voiceschanged", () => { 21 isnot(window.speechSynthesis.getVoices().length, 0, "Voices added"); 22 SimpleTest.waitForFocus(() => { 23 SpecialPowers.pushPrefEnv({"set": 24 [["privacy.resistFingerprinting", true]], 25 }, doGetVoicesTest); 26 }, window); 27 }, {once: true}); 28 29 is(window.speechSynthesis.getVoices().length, 0, "No voices added initially"); 30 } 31 32 function doGetVoicesTest() { 33 is(window.speechSynthesis.getVoices().length, 0, 34 "There should be no voices after fingerprinting resistance is enabled."); 35 doVoiceschangedEventTest(); 36 } 37 38 function doVoiceschangedEventTest() { 39 window.speechSynthesis.addEventListener("voiceschanged", () => { 40 ok(false, "The voiceschanged event should not be fired."); 41 doSpeakTestAsync(); 42 }, {once: true}); 43 44 window.addEventListener("TestEvent", () => { 45 // If we receive this event without receiving a 'voiceschanged' event, this means 46 // the voiceschanged event has been blocked correctly. 47 ok(true, "Got the 'TestEvent' event."); 48 doSpeakTestAsync(); 49 }, {once: true}); 50 51 // Notify 'synth-voices-changed' for triggering the voiceschanged event. 52 SpecialPowers.Services.obs.notifyObservers(null, "synth-voices-changed"); 53 window.dispatchEvent(new CustomEvent("TestEvent")); 54 } 55 56 // This tests Speak() and its asynchronousness. 57 function doSpeakTestAsync() { 58 // For non-e10s, this test will always fail since the event will be triggered immediately 59 // after speak() is called. So, new added events after speak() won't be called. We skip 60 // this test if it is non-e10s. 61 if (SpecialPowers.Services.appinfo.browserTabsRemoteAutostart) { 62 let utterance = new window.SpeechSynthesisUtterance("Hello, world!"); 63 window.speechSynthesis.speak(utterance); 64 65 utterance.addEventListener("start", () => { 66 ok(false, "speechSynthesis should not start speaking if fingerprinting resistance is enabled."); 67 doSpeakTestSync(); 68 }, {once: true}); 69 70 utterance.addEventListener("error", () => { 71 ok(true, "speechSynthesis.speak should fail if fingerprinting resistance is enabled."); 72 doSpeakTestSync(); 73 }, {once: true}); 74 } else { 75 doSpeakTestSync(); 76 } 77 } 78 79 // This tests Speak() and its synchronousness. 80 function doSpeakTestSync() { 81 let utterance = new window.SpeechSynthesisUtterance("Hello, world!"); 82 utterance.addEventListener("start", () => { 83 ok(false, "speechSynthesis should not start speaking if fingerprinting resistance is enabled."); 84 SimpleTest.finish(); 85 }, {once: true}); 86 87 utterance.addEventListener("error", () => { 88 ok(true, "speechSynthesis.speak should fail if fingerprinting resistance is enabled."); 89 SimpleTest.finish(); 90 }, {once: true}); 91 92 window.speechSynthesis.speak(utterance); 93 } 94 95 </script> 96 </head> 97 <body> 98 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=">Mozilla Bug </a> 99 <p id="display"></p> 100 <div id="content" style="display: none"> 101 102 </div> 103 <pre id="test"></pre> 104 </body> 105 </html>