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Unified Diff: third_party/WebKit/LayoutTests/webaudio/Gain/gain.html

Issue 2895963003: Apply layout-test-tidy to LayoutTests/webaudio (Closed)
Patch Set: Created 3 years, 7 months ago
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Index: third_party/WebKit/LayoutTests/webaudio/Gain/gain.html
diff --git a/third_party/WebKit/LayoutTests/webaudio/Gain/gain.html b/third_party/WebKit/LayoutTests/webaudio/Gain/gain.html
index b7bf8ccc97d00886b025f0dc2a2f1b31ca1192f1..eceeda5e7c94b438a61a9fec1ce238b93d2388b6 100644
--- a/third_party/WebKit/LayoutTests/webaudio/Gain/gain.html
+++ b/third_party/WebKit/LayoutTests/webaudio/Gain/gain.html
@@ -1,122 +1,118 @@
<!DOCTYPE html>
-
<!--
Tests that GainNode is properly scaling the gain.
We'll render 11 notes, starting at a gain of 1.0, decreasing in gain by 0.1.
The 11th note will be of gain 0.0, so it should be silent (at the end in the rendered output).
-->
-
<html>
-<head>
-<script src="../../resources/testharness.js"></script>
-<script src="../../resources/testharnessreport.js"></script>
-<script src="../resources/audit-util.js"></script>
-<script src="../resources/audit.js"></script>
-<script src="../resources/buffer-loader.js"></script>
-</head>
-<body>
-
-<script>
-let audit = Audit.createTaskRunner();
-
-let sampleRate = 44100.0;
-let bufferDurationSeconds = 0.125;
-let numberOfNotes = 11;
-let noteSpacing =
- bufferDurationSeconds + 0.020; // leave 20ms of silence between each "note"
-let lengthInSeconds = numberOfNotes * noteSpacing;
-
-let context = 0;
-let sinWaveBuffer = 0;
-let reference = 0;
-
-function createSinWaveBuffer(lengthInSeconds, frequency) {
- let audioBuffer =
- context.createBuffer(2, lengthInSeconds * sampleRate, sampleRate);
-
- let n = audioBuffer.length;
- let channelL = audioBuffer.getChannelData(0);
- let channelR = audioBuffer.getChannelData(1);
-
- for (let i = 0; i < n; ++i) {
- channelL[i] = Math.sin(frequency * 2.0 * Math.PI * i / sampleRate);
- channelR[i] = channelL[i];
- }
-
- return audioBuffer;
-}
-
-function playNote(time, gain) {
- let source = context.createBufferSource();
- source.buffer = sinWaveBuffer;
-
- let gainNode = context.createGain();
- gainNode.gain.value = gain;
-
- source.connect(gainNode);
- gainNode.connect(context.destination);
-
- source.start(time);
-}
-
-audit.define({
- label: 'create context',
- description: 'Create context for test'
-}, function(task, should) {
- // Create offline audio context.
- context =
- new OfflineAudioContext(2, sampleRate * lengthInSeconds, sampleRate);
- task.done();
-});
-
-audit.define({
- label: 'load-ref',
- description: 'Load reference audio file'
-}, function(task, should) {
- let bufferLoader =
- new BufferLoader(context, ['gain-expected.wav'], bufferList => {
- reference = bufferList[0].getChannelData(0);
- task.done();
- });
-
- bufferLoader.load();
-});
-
-audit.define({
- label: 'test',
- description: 'GainNode functionality'
-}, function(task, should) {
-
- // Create a buffer for a short "note".
- sinWaveBuffer = createSinWaveBuffer(bufferDurationSeconds, 880.0);
-
- // Render 11 notes, starting at a gain of 1.0, decreasing in gain by 0.1.
- // The last note will be of gain 0.0, so shouldn't be perceptible in the
- // rendered output.
- for (let i = 0; i < numberOfNotes; ++i) {
- let time = i * noteSpacing;
- let gain = 1.0 - i / (numberOfNotes - 1);
- playNote(time, gain);
- }
-
- context.startRendering()
- .then(buffer => {
- let actual = buffer.getChannelData(0);
- should(actual, 'Output from gain node').beCloseToArray(reference, {
- absoluteThreshold: 3.0503e-5
- });
- let snr = 10 * Math.log10(computeSNR(actual, reference));
- should(snr, 'SNR (in dB)').beGreaterThanOrEqualTo(89.088);
- let filename = 'gain-actual.wav';
- if (downloadAudioBuffer(buffer, filename))
- should(true, 'Saved reference file').message(filename, "");
- })
- .then(() => task.done());
- ;
-});
-
-audit.run();
-</script>
-
-</body>
+ <head>
+ <title>
+ gain.html
+ </title>
+ <script src="../../resources/testharness.js"></script>
+ <script src="../../resources/testharnessreport.js"></script>
+ <script src="../resources/audit-util.js"></script>
+ <script src="../resources/audit.js"></script>
+ <script src="../resources/buffer-loader.js"></script>
+ </head>
+ <body>
+ <script id="layout-test-code">
+ let audit = Audit.createTaskRunner();
+
+ let sampleRate = 44100.0;
+ let bufferDurationSeconds = 0.125;
+ let numberOfNotes = 11;
+ let noteSpacing = bufferDurationSeconds +
+ 0.020; // leave 20ms of silence between each "note"
+ let lengthInSeconds = numberOfNotes * noteSpacing;
+
+ let context = 0;
+ let sinWaveBuffer = 0;
+ let reference = 0;
+
+ function createSinWaveBuffer(lengthInSeconds, frequency) {
+ let audioBuffer =
+ context.createBuffer(2, lengthInSeconds * sampleRate, sampleRate);
+
+ let n = audioBuffer.length;
+ let channelL = audioBuffer.getChannelData(0);
+ let channelR = audioBuffer.getChannelData(1);
+
+ for (let i = 0; i < n; ++i) {
+ channelL[i] = Math.sin(frequency * 2.0 * Math.PI * i / sampleRate);
+ channelR[i] = channelL[i];
+ }
+
+ return audioBuffer;
+ }
+
+ function playNote(time, gain) {
+ let source = context.createBufferSource();
+ source.buffer = sinWaveBuffer;
+
+ let gainNode = context.createGain();
+ gainNode.gain.value = gain;
+
+ source.connect(gainNode);
+ gainNode.connect(context.destination);
+
+ source.start(time);
+ }
+
+ audit.define(
+ {label: 'create context', description: 'Create context for test'},
+ function(task, should) {
+ // Create offline audio context.
+ context = new OfflineAudioContext(
+ 2, sampleRate * lengthInSeconds, sampleRate);
+ task.done();
+ });
+
+ audit.define(
+ {label: 'load-ref', description: 'Load reference audio file'},
+ function(task, should) {
+ let bufferLoader =
+ new BufferLoader(context, ['gain-expected.wav'], bufferList => {
+ reference = bufferList[0].getChannelData(0);
+ task.done();
+ });
+
+ bufferLoader.load();
+ });
+
+ audit.define(
+ {label: 'test', description: 'GainNode functionality'},
+ function(task, should) {
+
+ // Create a buffer for a short "note".
+ sinWaveBuffer = createSinWaveBuffer(bufferDurationSeconds, 880.0);
+
+ // Render 11 notes, starting at a gain of 1.0, decreasing in gain by
+ // 0.1. The last note will be of gain 0.0, so shouldn't be
+ // perceptible in the rendered output.
+ for (let i = 0; i < numberOfNotes; ++i) {
+ let time = i * noteSpacing;
+ let gain = 1.0 - i / (numberOfNotes - 1);
+ playNote(time, gain);
+ }
+
+ context.startRendering()
+ .then(buffer => {
+ let actual = buffer.getChannelData(0);
+ should(actual, 'Output from gain node')
+ .beCloseToArray(
+ reference, {absoluteThreshold: 3.0503e-5});
+ let snr = 10 * Math.log10(computeSNR(actual, reference));
+ should(snr, 'SNR (in dB)').beGreaterThanOrEqualTo(89.088);
+ let filename = 'gain-actual.wav';
+ if (downloadAudioBuffer(buffer, filename))
+ should(true, 'Saved reference file').message(filename, '');
+ })
+ .then(() => task.done());
+ ;
+ });
+
+ audit.run();
+ </script>
+ </body>
</html>

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