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https://github.com/LadybirdBrowser/ladybird
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LibWeb: Align AudioContext constructor with current spec steps
This commit is contained in:
Tim Ledbetter
committed by
Tim Ledbetter
Tim Ledbetter
parent
c33d72bb41
commit
f01ccf5424
Notes:
github-actions[bot]
2025-01-16 13:57:27 +00:00
Author: https://github.com/tcl3 Commit: https://github.com/LadybirdBrowser/ladybird/commit/f01ccf54248 Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3203 Reviewed-by: https://github.com/shannonbooth ✅
@@ -0,0 +1,215 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>
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Test AudioContextOptions
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</title>
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<script src="../../../resources/testharness.js"></script>
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<script src="../../../resources/testharnessreport.js"></script>
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<script src="../../../webaudio/resources/audit.js"></script>
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</head>
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<body>
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<script id="layout-test-code">
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let context;
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let defaultLatency;
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let interactiveLatency;
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let balancedLatency;
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let playbackLatency;
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let audit = Audit.createTaskRunner();
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audit.define(
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{
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label: 'test-audiocontextoptions-latencyHint-basic',
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description: 'Test creating contexts with basic latencyHint types.'
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},
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function(task, should) {
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let closingPromises = [];
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// Verify that an AudioContext can be created with default options.
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should(function() {
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context = new AudioContext()
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}, 'context = new AudioContext()').notThrow();
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should(context.sampleRate,
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`context.sampleRate (${context.sampleRate} Hz)`).beGreaterThan(0);
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defaultLatency = context.baseLatency;
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should(defaultLatency, 'default baseLatency').beGreaterThanOrEqualTo(0);
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// Verify that an AudioContext can be created with the expected
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// latency types.
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should(
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function() {
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context = new AudioContext({'latencyHint': 'interactive'})
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},
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'context = new AudioContext({\'latencyHint\': \'interactive\'})')
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.notThrow();
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interactiveLatency = context.baseLatency;
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should(interactiveLatency, 'interactive baseLatency')
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.beEqualTo(defaultLatency);
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closingPromises.push(context.close());
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should(
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function() {
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context = new AudioContext({'latencyHint': 'balanced'})
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},
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'context = new AudioContext({\'latencyHint\': \'balanced\'})')
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.notThrow();
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balancedLatency = context.baseLatency;
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should(balancedLatency, 'balanced baseLatency')
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.beGreaterThanOrEqualTo(interactiveLatency);
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closingPromises.push(context.close());
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should(
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function() {
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context = new AudioContext({'latencyHint': 'playback'})
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},
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'context = new AudioContext({\'latencyHint\': \'playback\'})')
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.notThrow();
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playbackLatency = context.baseLatency;
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should(playbackLatency, 'playback baseLatency')
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.beGreaterThanOrEqualTo(balancedLatency);
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closingPromises.push(context.close());
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Promise.all(closingPromises).then(function() {
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task.done();
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});
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});
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audit.define(
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{
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label: 'test-audiocontextoptions-latencyHint-double',
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description:
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'Test creating contexts with explicit latencyHint values.'
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},
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function(task, should) {
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let closingPromises = [];
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// Verify too small exact latency clamped to 'interactive'
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should(
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function() {
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context =
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new AudioContext({'latencyHint': interactiveLatency / 2})
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},
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'context = new AudioContext({\'latencyHint\': ' +
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'interactiveLatency/2})')
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.notThrow();
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should(context.baseLatency, 'double-constructor baseLatency small')
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.beLessThanOrEqualTo(interactiveLatency);
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closingPromises.push(context.close());
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// Verify that exact latency in range works as expected
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let validLatency = (interactiveLatency + playbackLatency) / 2;
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should(
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function() {
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context = new AudioContext({'latencyHint': validLatency})
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},
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'context = new AudioContext({\'latencyHint\': validLatency})')
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.notThrow();
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should(
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context.baseLatency, 'double-constructor baseLatency inrange 1')
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.beGreaterThanOrEqualTo(interactiveLatency);
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should(
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context.baseLatency, 'double-constructor baseLatency inrange 2')
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.beLessThanOrEqualTo(playbackLatency);
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closingPromises.push(context.close());
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// Verify too big exact latency clamped to some value
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let context1;
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let context2;
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should(function() {
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context1 =
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new AudioContext({'latencyHint': playbackLatency * 10});
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context2 =
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new AudioContext({'latencyHint': playbackLatency * 20});
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}, 'creating two high latency contexts').notThrow();
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should(context1.baseLatency, 'high latency context baseLatency')
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.beEqualTo(context2.baseLatency);
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should(context1.baseLatency, 'high latency context baseLatency')
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.beGreaterThanOrEqualTo(interactiveLatency);
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closingPromises.push(context1.close());
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closingPromises.push(context2.close());
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// Verify that invalid latencyHint values are rejected.
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should(
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function() {
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context = new AudioContext({'latencyHint': 'foo'})
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},
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'context = new AudioContext({\'latencyHint\': \'foo\'})')
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.throw(TypeError);
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// Verify that no extra options can be passed into the
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// AudioContextOptions.
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should(
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function() {
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context = new AudioContext('latencyHint')
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},
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'context = new AudioContext(\'latencyHint\')')
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.throw(TypeError);
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Promise.all(closingPromises).then(function() {
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task.done();
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});
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});
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audit.define(
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{
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label: 'test-audiocontextoptions-sampleRate',
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description:
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'Test creating contexts with non-default sampleRate values.'
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},
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function(task, should) {
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// A sampleRate of 1 is unlikely to be supported on any browser,
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// test that this rate is rejected.
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should(
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() => {
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context = new AudioContext({sampleRate: 1})
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},
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'context = new AudioContext({sampleRate: 1})')
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.throw(DOMException, 'NotSupportedError');
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// A sampleRate of 1,000,000 is unlikely to be supported on any
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// browser, test that this rate is also rejected.
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should(
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() => {
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context = new AudioContext({sampleRate: 1000000})
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},
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'context = new AudioContext({sampleRate: 1000000})')
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.throw(DOMException, 'NotSupportedError');
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// A negative sample rate should not be accepted
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should(
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() => {
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context = new AudioContext({sampleRate: -1})
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},
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'context = new AudioContext({sampleRate: -1})')
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.throw(DOMException, 'NotSupportedError');
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// A null sample rate should not be accepted
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should(
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() => {
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context = new AudioContext({sampleRate: 0})
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},
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'context = new AudioContext({sampleRate: 0})')
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.throw(DOMException, 'NotSupportedError');
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should(
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() => {
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context = new AudioContext({sampleRate: 24000})
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},
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'context = new AudioContext({sampleRate: 24000})')
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.notThrow();
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should(
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context.sampleRate, 'sampleRate inrange')
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.beEqualTo(24000);
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context.close();
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task.done();
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});
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audit.run();
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</script>
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</body>
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</html>
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