third_party/WebKit/LayoutTests/webaudio/constant-source-output.html - Issue 2581463002: Refactor WebAudio test directory

Unified Diff: third_party/WebKit/LayoutTests/webaudio/constant-source-output.html

Issue 2581463002: Refactor WebAudio test directory (Closed)

Patch Set: Use correct path for wav result files Created 4 years ago

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Index: third_party/WebKit/LayoutTests/webaudio/constant-source-output.html

diff --git a/third_party/WebKit/LayoutTests/webaudio/constant-source-output.html b/third_party/WebKit/LayoutTests/webaudio/constant-source-output.html

deleted file mode 100644

index 60e76c573ac81bafbc7f1b424f99a4a719f7a81b..0000000000000000000000000000000000000000

--- a/third_party/WebKit/LayoutTests/webaudio/constant-source-output.html

+++ /dev/null

@@ -1,182 +0,0 @@

-<!doctype html>

-<html>

- <head>

- <title>Test ConstantSourceNode Output</title>

- <script src="../resources/testharness.js"></script>

- <script src="../resources/testharnessreport.js"></script>

- <script src="resources/audit-util.js"></script>

- <script src="resources/audio-testing.js"></script>

- <script src="resources/audioparam-testing.js"></script>

- </head>

- <body>

- <script>

- var sampleRate = 48000;

- var renderDuration = 0.125;

- var renderFrames = sampleRate * renderDuration;

- var audit = Audit.createTaskRunner();

- audit.defineTask("constant source", function (taskDone) {

- // Verify a constant source outputs the correct (fixed) constant.

- var context = new OfflineAudioContext(1, renderFrames, sampleRate);

- var node = new ConstantSourceNode(context, {

- offset: 0.5

- });

- node.connect(context.destination);

- node.start();

- context.startRendering().then(function (buffer) {

- var actual = buffer.getChannelData(0);

- var expected = new Float32Array(actual.length);

- expected.fill(node.offset.value);

- Should("ConstantSourceNode({offset: 0.5})", actual)

- .beEqualToArray(expected);

- }).then(taskDone);

- });

- audit.defineTask("start/stop", function (taskDone) {

- // Verify a constant source starts and stops at the correct time and has

- // the correct (fixed) value.

- var context = new OfflineAudioContext(1, renderFrames, sampleRate);

- var node = new ConstantSourceNode(context, {

- offset: 1

- });

- node.connect(context.destination);

- var startFrame = 10;

- var stopFrame = 300;

- node.start(startFrame / context.sampleRate);

- node.stop(stopFrame / context.sampleRate);

- context.startRendering().then(function (buffer) {

- var actual = buffer.getChannelData(0);

- var expected = new Float32Array(actual.length);

- // The expected output is all 1s from start to stop time.

- expected.fill(0);

- for (var k = startFrame; k < stopFrame; ++k) {

- expected[k] = node.offset.value;

- }

- var success = Should("ConstantSourceNode frames [0, " +

- startFrame + ")",

- actual.slice(0, startFrame))

- .beConstantValueOf(0);

- success = Should("ConstantSourceNode frames [" + startFrame +

- ", " +

- stopFrame + ")",

- actual.slice(startFrame, stopFrame))

- .beConstantValueOf(1) && success;

- success = Should("ConstantSourceNode frames [" + stopFrame + ", " +

- renderFrames + ")",

- actual.slice(stopFrame))

- .beConstantValueOf(0) && success;

- Should("ConstantSourceNode started and stopped", success)

- .summarize(

- "at the correct times with the correct values",

- "with the incorrect times or values");

- }).then(taskDone);

- });

- audit.defineTask("basic automation", function (taskDone) {

- // Verify that automation works as expected.

- var context = new OfflineAudioContext(1, renderFrames, sampleRate);

- var source = context.createConstantSource();

- source.connect(context.destination);

- var rampEndTime = renderDuration / 2;

- source.offset.setValueAtTime(0.5, 0);

- source.offset.linearRampToValueAtTime(1, rampEndTime);

- source.start();

- context.startRendering()

- .then(function (buffer) {

- var actual = buffer.getChannelData(0);

- var expected = createLinearRampArray(0, rampEndTime, 0.5, 1,

- context.sampleRate);

- var rampEndFrame = Math.ceil(rampEndTime * context.sampleRate);

- var success = Should("ConstantSourceNode.linearRamp(1, 0.5)",

- actual.slice(0, rampEndFrame))

- .beCloseToArray(expected, {

- // Experimentally determined threshold..

- relativeThreshold: 7.1610e-7

- });

- success = Should("ConstantSourceNode after ramp",

- actual.slice(rampEndFrame))

- .beConstantValueOf(1) && success;

- Should("ConstantSourceNode automation", success)

- .summarize(

- "produced the correct values",

- "did not produce the correct values");

- })

- .then(taskDone);

- });

- audit.defineTask("connected audioparam", function (taskDone) {

- // Verify the constant source output with connected AudioParam produces

- // the correct output.

- var context = new OfflineAudioContext(2, renderFrames, sampleRate)

- context.destination.channelInterpretation = "discrete";

- var source = new ConstantSourceNode(context, {

- offset: 1

- });

- var osc = context.createOscillator();

- var merger = context.createChannelMerger(2);

- merger.connect(context.destination);

- source.connect(merger, 0, 0);

- osc.connect(merger, 0, 1);

- osc.connect(source.offset);

- osc.start();

- var sourceStartFrame = 10;

- source.start(sourceStartFrame / context.sampleRate);

- context.startRendering()

- .then(function (buffer) {

- // Channel 0 and 1 should be identical, except channel 0 (the

- // source) is silent at the beginning.

- var actual = buffer.getChannelData(0);

- var expected = buffer.getChannelData(1);

- // The expected output should be oscillator + 1 because offset

- // is 1.

- expected = expected.map(x => 1 + x);

- var success = true;

- // The initial part of the output should be silent because the

- // source node hasn't started yet.

- success = Should("ConstantSourceNode frames [0, " +

- sourceStartFrame + ")", actual.slice(0, sourceStartFrame)

- )

- .beConstantValueOf(0);

- // The rest of the output should be the same as the oscillator (in

- // channel 1)

- success = Should("ConstantSourceNode frames [" +

- sourceStartFrame + ", " + renderFrames + ")",

- actual.slice(sourceStartFrame))

- .beCloseToArray(expected.slice(sourceStartFrame), 0);

- Should("ConstantSourceNode with connected AudioParam",

- success)

- .summarize(

- "had the expected output",

- "did not have the expected output");

- })

- .then(taskDone);

- });

- audit.runTasks();

- </script>

- </body>

-</html>