mozilla-central/dom/media/webspeech/recognition/test/test_online_http.html

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Test Info:

<!DOCTYPE HTML>
<html>
<!--
The intent of this file is to test a successfull speech recognition request and
that audio is being properly encoded
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1248897 -- Online speech service</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript" src="head.js"></script>
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="text/javascript">
SimpleTest.waitForExplicitFinish();
async function validateRawAudio(buffer) {
const ac = new AudioContext();
const decodedData = await ac.decodeAudioData(buffer);
const source = ac.createBufferSource();
source.buffer = decodedData;
source.loop = true;
const analyser = ac.createAnalyser();
analyser.smoothingTimeConstant = 0.2;
analyser.fftSize = 1024;
source.connect(analyser);
const binIndexForFrequency = frequency =>
1 + Math.round(frequency * analyser.fftSize / ac.sampleRate);
source.start();
const data = new Uint8Array(analyser.frequencyBinCount);
const start = performance.now();
while (true) {
if (performance.now() - start > 10000) {
return false;
}
analyser.getByteFrequencyData(data);
if (data[binIndexForFrequency(200)] < 50 &&
data[binIndexForFrequency(440)] > 180 &&
data[binIndexForFrequency(1000)] < 50) {
return true;
}
await new Promise(r => requestAnimationFrame(r));
}
}
async function verifyEncodedAudio(requestUrl) {
try {
const response = await fetch(requestUrl);
const buffer = await response.arrayBuffer();
ok(await validateRawAudio(buffer), "Audio encoding is valid");
} catch(e) {
ok(false, e);
} finally {
SimpleTest.finish();
}
}
performTest({
eventsToRequest: {},
expectedEvents: {
"start": null,
"audiostart": null,
"audioend": null,
"end": null,
"result": () => verifyEncodedAudio("http_requesthandler.sjs?save"),
"speechstart": null,
"speechend": null
},
audioSampleFile: "sinoid+hello.ogg",
prefs: [["media.webspeech.recognition.enable", true],
["media.webspeech.recognition.force_enable", true],
["media.webspeech.service.endpoint",
["media.webspeech.recognition.timeout", 100000]]
});
</script>
</pre>
</body>
</html>