| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| audiobuffersource-channels.html |
| </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> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| let audit = Audit.createTaskRunner(); |
| let context; |
| let source; |
| |
| audit.define( |
| { |
| label: 'validate .buffer', |
| description: |
| 'Validatation of AudioBuffer in .buffer attribute setter' |
| }, |
| function(task, should) { |
| context = new AudioContext(); |
| source = context.createBufferSource(); |
| |
| // Make sure we can't set to something which isn't an AudioBuffer. |
| should(function() { |
| source.buffer = 57; |
| }, 'source.buffer = 57').throw(TypeError); |
| |
| // It's ok to set the buffer to null. |
| should(function() { |
| source.buffer = null; |
| }, 'source.buffer = null').notThrow(); |
| |
| // Set the buffer to a valid AudioBuffer |
| let buffer = |
| new AudioBuffer({length: 128, sampleRate: context.sampleRate}); |
| |
| should(function() { |
| source.buffer = buffer; |
| }, 'source.buffer = buffer').notThrow(); |
| |
| // The buffer has been set; we can't set it again. |
| should(function() { |
| source.buffer = |
| new AudioBuffer({length: 128, sampleRate: context.sampleRate}) |
| }, 'source.buffer = new buffer').throw(DOMException, 'InvalidStateError'); |
| |
| // The buffer has been set; it's ok to set it to null. |
| should(function() { |
| source.buffer = null; |
| }, 'source.buffer = null again').notThrow(); |
| |
| // The buffer was already set (and set to null). Can't set it |
| // again. |
| should(function() { |
| source.buffer = buffer; |
| }, 'source.buffer = buffer again').throw(DOMException, 'InvalidStateError'); |
| |
| // But setting to null is ok. |
| should(function() { |
| }, 'source.buffer = null after setting to null').notThrow(); |
| |
| // Check that mono buffer can be set. |
| should(function() { |
| let monoBuffer = |
| context.createBuffer(1, 1024, context.sampleRate); |
| let testSource = context.createBufferSource(); |
| testSource.buffer = monoBuffer; |
| }, 'Setting source with mono buffer').notThrow(); |
| |
| // Check that stereo buffer can be set. |
| should(function() { |
| let stereoBuffer = |
| context.createBuffer(2, 1024, context.sampleRate); |
| let testSource = context.createBufferSource(); |
| testSource.buffer = stereoBuffer; |
| }, 'Setting source with stereo buffer').notThrow(); |
| |
| // Check buffers with more than two channels. |
| for (let i = 3; i < 10; ++i) { |
| should(function() { |
| let buffer = context.createBuffer(i, 1024, context.sampleRate); |
| let testSource = context.createBufferSource(); |
| testSource.buffer = buffer; |
| }, 'Setting source with ' + i + ' channels buffer').notThrow(); |
| } |
| task.done(); |
| }); |
| |
| audit.run(); |
| </script> |
| </body> |
| </html> |
