| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| Test AudioBuffer.getChannelData() Returns the Same Object |
| </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/audioparam-testing.js"></script> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| let sampleRate = 48000; |
| let renderDuration = 0.5; |
| |
| let audit = Audit.createTaskRunner(); |
| |
| audit.define('buffer-eq', (task, should) => { |
| // Verify that successive calls to getChannelData return the same |
| // buffer. |
| let context = new AudioContext(); |
| let channelCount = 2; |
| let frameLength = 1000; |
| let buffer = |
| context.createBuffer(channelCount, frameLength, context.sampleRate); |
| |
| for (let c = 0; c < channelCount; ++c) { |
| let a = buffer.getChannelData(c); |
| let b = buffer.getChannelData(c); |
| |
| let message = 'buffer.getChannelData(' + c + ')'; |
| should(a === b, message + ' === ' + message).beEqualTo(true); |
| } |
| |
| task.done(); |
| }); |
| |
| audit.define('buffer-not-eq', (task, should) => { |
| let context = new AudioContext(); |
| let channelCount = 2; |
| let frameLength = 1000; |
| let buffer1 = |
| context.createBuffer(channelCount, frameLength, context.sampleRate); |
| let buffer2 = |
| context.createBuffer(channelCount, frameLength, context.sampleRate); |
| let success = true; |
| |
| for (let c = 0; c < channelCount; ++c) { |
| let a = buffer1.getChannelData(c); |
| let b = buffer2.getChannelData(c); |
| |
| let message = 'getChannelData(' + c + ')'; |
| should(a === b, 'buffer1.' + message + ' === buffer2.' + message) |
| .beEqualTo(false) && |
| success; |
| } |
| |
| task.done(); |
| }); |
| |
| audit.run(); |
| </script> |
| </body> |
| </html> |
