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Diffstat (limited to 'testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffer-interface/ctor-audiobuffer.html')
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diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffer-interface/ctor-audiobuffer.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffer-interface/ctor-audiobuffer.html new file mode 100644 index 0000000000..fbe6e42e31 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffer-interface/ctor-audiobuffer.html @@ -0,0 +1,236 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test Constructor: AudioBuffer + </title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/resources/audit-util.js"></script> + <script src="/webaudio/resources/audit.js"></script> + <script src="/webaudio/resources/audionodeoptions.js"></script> + </head> + <body> + <script id="layout-test-code"> + let context; + + let audit = Audit.createTaskRunner(); + + audit.define('initialize', (task, should) => { + context = initializeContext(should); + task.done(); + }); + + audit.define('invalid constructor', (task, should) => { + should(() => { + new AudioBuffer(); + }, 'new AudioBuffer()').throw(TypeError); + should(() => { + new AudioBuffer(1); + }, 'new AudioBuffer(1)').throw(TypeError); + should(() => { + new AudioBuffer(Date, 42); + }, 'new AudioBuffer(Date, 42)').throw(TypeError); + + task.done(); + }); + + audit.define('required options', (task, should) => { + let buffer; + + // The length and sampleRate attributes are required; all others are + // optional. + should(() => { + new AudioBuffer({}); + }, 'buffer = new AudioBuffer({})').throw(TypeError); + + should(() => { + new AudioBuffer({length: 1}); + }, 'buffer = new AudioBuffer({length: 1})').throw(TypeError); + + should(() => { + new AudioBuffer({sampleRate: 48000}); + }, 'buffer = new AudioBuffer({sampleRate: 48000})').throw(TypeError); + + should(() => { + buffer = new AudioBuffer({numberOfChannels: 1}); + }, 'buffer = new AudioBuffer({numberOfChannels: 1}').throw(TypeError); + + // Length and sampleRate are required, but others are optional. + should( + () => { + buffer = + new AudioBuffer({length: 21, sampleRate: context.sampleRate}); + }, + 'buffer0 = new AudioBuffer({length: 21, sampleRate: ' + + context.sampleRate + '}') + .notThrow(); + // Verify the buffer has the correct values. + should(buffer.numberOfChannels, 'buffer0.numberOfChannels') + .beEqualTo(1); + should(buffer.length, 'buffer0.length').beEqualTo(21); + should(buffer.sampleRate, 'buffer0.sampleRate') + .beEqualTo(context.sampleRate); + + should( + () => { + buffer = new AudioBuffer( + {numberOfChannels: 3, length: 1, sampleRate: 48000}); + }, + 'buffer1 = new AudioBuffer(' + + '{numberOfChannels: 3, length: 1, sampleRate: 48000})') + .notThrow(); + // Verify the buffer has the correct values. + should(buffer.numberOfChannels, 'buffer1.numberOfChannels') + .beEqualTo(3); + should(buffer.length, 'buffer1.length').beEqualTo(1); + should(buffer.sampleRate, 'buffer1.sampleRate').beEqualTo(48000); + + task.done(); + }); + + audit.define('invalid option values', (task, should) => { + let options = {numberOfChannels: 0, length: 1, sampleRate: 16000}; + should( + () => { + let buffer = new AudioBuffer(options); + }, + 'new AudioBuffer(' + JSON.stringify(options) + ')') + .throw(DOMException, 'NotSupportedError'); + + options = {numberOfChannels: 99, length: 0, sampleRate: 16000}; + should( + () => { + let buffer = new AudioBuffer(options); + }, + 'new AudioBuffer(' + JSON.stringify(options) + ')') + .throw(DOMException, 'NotSupportedError'); + + options = {numberOfChannels: 1, length: 0, sampleRate: 16000}; + should( + () => { + let buffer = new AudioBuffer(options); + }, + 'new AudioBuffer(' + JSON.stringify(options) + ')') + .throw(DOMException, 'NotSupportedError'); + + options = {numberOfChannels: 1, length: 1, sampleRate: 100}; + should( + () => { + let buffer = new AudioBuffer(options); + }, + 'new AudioBuffer(' + JSON.stringify(options) + ')') + .throw(DOMException, 'NotSupportedError'); + + task.done(); + }); + + audit.define('default constructor', (task, should) => { + let buffer; + + let options = {numberOfChannels: 5, length: 17, sampleRate: 16000}; + should( + () => { + buffer = new AudioBuffer(options); + }, + 'buffer = new AudioBuffer(' + JSON.stringify(options) + ')') + .notThrow(); + + should(buffer.numberOfChannels, 'buffer.numberOfChannels') + .beEqualTo(options.numberOfChannels); + should(buffer.length, 'buffer.length').beEqualTo(options.length); + should(buffer.sampleRate, 'buffer.sampleRate').beEqualTo(16000); + + task.done(); + }); + + audit.define('valid constructor', (task, should) => { + let buffer; + + let options = {numberOfChannels: 3, length: 42, sampleRate: 54321}; + + let message = 'new AudioBuffer(' + JSON.stringify(options) + ')'; + should(() => { + buffer = new AudioBuffer(options); + }, message).notThrow(); + + should(buffer.numberOfChannels, 'buffer.numberOfChannels') + .beEqualTo(options.numberOfChannels); + + should(buffer.length, 'buffer.length').beEqualTo(options.length); + + should(buffer.sampleRate, 'buffer.sampleRate') + .beEqualTo(options.sampleRate); + + // Verify that we actually got the right number of channels + for (let k = 0; k < options.numberOfChannels; ++k) { + let data; + let message = 'buffer.getChannelData(' + k + ')'; + should(() => { + data = buffer.getChannelData(k); + }, message).notThrow(); + + should(data.length, message + ' length').beEqualTo(options.length); + } + + should( + () => { + buffer.getChannelData(options.numberOfChannels); + }, + 'buffer.getChannelData(' + options.numberOfChannels + ')') + .throw(DOMException, 'IndexSizeError'); + + task.done(); + }); + + audit.define('multiple contexts', (task, should) => { + // Test that an AudioBuffer can be used for different contexts. + let buffer = + new AudioBuffer({length: 128, sampleRate: context.sampleRate}); + + // Don't use getChannelData here because we want to be able to use + // |data| to compare the final results of playing out this buffer. (If + // we did, |data| gets detached when the sources play.) + let data = new Float32Array(buffer.length); + for (let k = 0; k < data.length; ++k) + data[k] = 1 + k; + buffer.copyToChannel(data, 0); + + let c1 = new OfflineAudioContext(1, 128, context.sampleRate); + let c2 = new OfflineAudioContext(1, 128, context.sampleRate); + + let s1 = new AudioBufferSourceNode(c1, {buffer: buffer}); + let s2 = new AudioBufferSourceNode(c2, {buffer: buffer}); + + s1.connect(c1.destination); + s2.connect(c2.destination); + + s1.start(); + s2.start(); + + Promise + .all([ + c1.startRendering().then(function(resultBuffer) { + return resultBuffer; + }), + c2.startRendering().then(function(resultBuffer) { + return resultBuffer; + }), + ]) + .then(resultBuffers => { + let c1ResultValue = should(resultBuffers[0].getChannelData(0), 'c1 result') + .beEqualToArray(data); + let c2ResultValue = should(resultBuffers[1].getChannelData(0), 'c2 result') + .beEqualToArray(data); + should( + c1ResultValue && c2ResultValue, + 'AudioBuffer shared between two different contexts') + .message('correctly', 'incorrectly'); + task.done(); + }); + }); + + audit.run(); + </script> + </body> +</html> |