third_party/WebKit/LayoutTests/webaudio/biquad-tail.html - Issue 2581463002: Refactor WebAudio test directory

Unified Diff: third_party/WebKit/LayoutTests/webaudio/biquad-tail.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/biquad-tail.html

diff --git a/third_party/WebKit/LayoutTests/webaudio/biquad-tail.html b/third_party/WebKit/LayoutTests/webaudio/biquad-tail.html

deleted file mode 100644

index a3972fd629b1e9c704058dddf59a9587701f3e42..0000000000000000000000000000000000000000

--- a/third_party/WebKit/LayoutTests/webaudio/biquad-tail.html

+++ /dev/null

@@ -1,68 +0,0 @@

-<!doctype html>

-<html>

- <head>

- <title>Test Biquad Tail Output</title>

- <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>

- </head>

- <body>

- <script>

- description("Test Biquad Tail Output");

- window.jsTestIsAsync = true;

- // A high sample rate shows the issue more clearly.

- var sampleRate = 192000;

- // Some short duration because we don't need to run the test for very long.

- var testDurationSec = 0.5;

- var testDurationFrames = testDurationSec * sampleRate;

- // Amplitude experimentally determined to give a biquad output close to 1. (No attempt was

- // made to produce exactly 1; it's not needed.)

- var sourceAmplitude = 100;

- // The output of the biquad filter should not change by more than this much between output

- // samples. Threshold was determined experimentally.

- var glitchThreshold = 0.012968;

- // Test that a Biquad filter doesn't have it's output terminated because the input has gone

- // away. Generally, when a source node is finished, it disconnects itself from any downstream

- // nodes. This is the correct behavior. Nodes that have no inputs (disconnected) are

- // generally assumed to output zeroes. This is also desired behavior. However, biquad

- // filters have memory so they should not suddenly output zeroes when the input is

- // disconnected. This test checks to see if the output doesn't suddenly change to zero.

- function runTest() {

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

- // Create an impulse source.

- var buffer = context.createBuffer(1, 1, context.sampleRate);

- buffer.getChannelData(0)[0] = sourceAmplitude;

- var source = context.createBufferSource();

- source.buffer = buffer;

- // Create the biquad filter. It doesn't really matter what kind, so the default filter type

- // and parameters is fine. Connect the source to it.

- var biquad = context.createBiquadFilter();

- source.connect(biquad);

- biquad.connect(context.destination);

- source.start();

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

- // There should be no large discontinuities in the output

- var success = true;

- success = success && Should("Biquad output", result.getChannelData(0)).notGlitch(glitchThreshold);

- if (success)

- testPassed("Biquad tail output correctly completed.");

- else

- testFailed("Biquad tail output not correctly completed.");

- }).then(finishJSTest);

- }

- runTest();

- successfullyParsed = true;

- </script>

- </body>

-</html>