third_party/WebKit/LayoutTests/webaudio/audioparam-negative-exponentialRamp.html - Issue 2581463002: Refactor WebAudio test directory

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Issue 2581463002: Refactor WebAudio test directory (Closed)

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

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diff --git a/third_party/WebKit/LayoutTests/webaudio/audioparam-negative-exponentialRamp.html b/third_party/WebKit/LayoutTests/webaudio/audioparam-negative-exponentialRamp.html

deleted file mode 100644

index 0d79c20945cb89bd9d8acd058081f370f6c9b81f..0000000000000000000000000000000000000000

--- a/third_party/WebKit/LayoutTests/webaudio/audioparam-negative-exponentialRamp.html

+++ /dev/null

@@ -1,157 +0,0 @@

-<!doctype html>

-<html>

- <head>

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

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

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

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

- <title>Test Negative AudioParam.exponentialRampToValueAtTime</title>

- </head>

- <body>

- <script>

- description("Test AudioParam.exponentialRampToValueAtTime() with Negative Values.");

- window.jsTestIsAsync = true;

- var sampleRate = 48000;

- var audit = Audit.createTaskRunner();

- audit.defineTask("both negative values", function (done) {

- var renderDuration = 0.125;

- // Create context with two channels. Channel 0 contains the positive-valued exponential and

- // channel 1 contains the negative-valued exponential. We'll compare the two channels to

- // verify that they're the same, as they should be.

- var context = new OfflineAudioContext(2, renderDuration * sampleRate, sampleRate);

- var source = context.createBufferSource();

- source.buffer = createConstantBuffer(context, 1, 1);

- source.loop = true;

- // Gain node gp is for the positive-valued exponential ramp, and gn is for the negative-valued

- // exponential ramp.

- var gp = context.createGain();

- var gn = context.createGain();

- var merger = context.createChannelMerger(2);

- source.connect(gp)

- .connect(merger, 0, 0);

- source.connect(gn)

- .connect(merger, 0, 1);

- merger.connect(context.destination);

- gp.gain.setValueAtTime(1, 0);

- gp.gain.exponentialRampToValueAtTime(2, renderDuration);

- gn.gain.setValueAtTime(-1, 0);

- gn.gain.exponentialRampToValueAtTime(-2, renderDuration);

- source.start();

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

- // Verify that channels have the same values, except for the sign.

- var expected = resultBuffer.getChannelData(0);

- var actual = resultBuffer.getChannelData(1);

- var inverted = expected.map(sample => -sample);

- Should("Negative exponential ramp from -1 to -2", actual)

- .beEqualToArray(inverted);

- }).then(done);

- });

- audit.defineTask("negative-end", function (done) {

- // Positive start value and negative end value should just do nothing.

- var renderDuration = 0.125;

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

- var source = context.createBufferSource();

- source.buffer = createConstantBuffer(context, 1, 1);

- source.loop = true;

- // Gain node gp is for the positive-valued exponential ramp, and gn is for the negative-valued

- // exponential ramp.

- var g = context.createGain();

- g.gain.setValueAtTime(2, 0);

- g.gain.exponentialRampToValueAtTime(-1, renderDuration);

- source.connect(g)

- .connect(context.destination);

- source.start();

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

- var actual = resultBuffer.getChannelData(0);

- Should("Exponential ramp from 2 to -1", actual)

- .beConstantValueOf(2);

- }).then(done);

- });

- audit.defineTask("positive-end", function (done) {

- // Positive start value and negative end value should just do nothing.

- var renderDuration = 0.125;

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

- var source = context.createBufferSource();

- source.buffer = createConstantBuffer(context, 1, 1);

- source.loop = true;

- var g = context.createGain();

- g.gain.setValueAtTime(-1, 0);

- g.gain.exponentialRampToValueAtTime(1, renderDuration);

- source.connect(g)

- .connect(context.destination);

- source.start();

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

- var actual = resultBuffer.getChannelData(0);

- Should("Exponential ramp from -1 to 1", actual)

- .beConstantValueOf(-1);

- }).then(done);

- });

- audit.defineTask("propagate", function (done) {

- // Test propagation of ramp if the exponential ramp start and end values have opposite sign.

- var renderDuration = 0.125;

- var linearRampEnd = renderDuration / 4;

- var exponentialRampEnd = renderDuration / 2;

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

- var source = context.createBufferSource();

- source.buffer = createConstantBuffer(context, 1, 1);

- source.loop = true;

- var g = context.createGain();

- g.gain.setValueAtTime(2, 0);

- g.gain.linearRampToValueAtTime(-1, linearRampEnd);

- g.gain.exponentialRampToValueAtTime(1, exponentialRampEnd);

- source.connect(g)

- .connect(context.destination);

- source.start();

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

- var actual = resultBuffer.getChannelData(0);

- // Since the start value of the exponential ramp is -1 and the end value is 1, the ramp

- // should just propagate -1 from the end of the linear ramp "forever".

- var endFrame = Math.ceil(linearRampEnd * sampleRate);

- Should("Exponential ramp from -1 to 1 after the end of the linear ramp",

- actual.slice(endFrame))

- .beConstantValueOf(-1);

- }).then(done);

- });

- audit.defineTask("finish", function (done) {

- finishJSTest();

- done();

- });

- audit.runTasks();

- </script>

- </body>

-</html>