| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| OfflineAudioContext.startRendering Promise with oncomplete |
| </title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="../resources/audit-util.js"></script> |
| <script src="../resources/audit.js"></script> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| let audit = Audit.createTaskRunner(); |
| |
| let context; |
| let promise; |
| let renderedData; |
| let promiseData; |
| |
| let sampleRate = 48000; |
| let renderSeconds = 1; |
| let renderFrames = sampleRate * renderSeconds; |
| let contextChannels = 2; |
| |
| function compareData(should) { |
| // The spec implies that the same buffer is returned by both oncomplete |
| // and the promise. Check that they are identical. |
| |
| should( |
| renderedData === promiseData, |
| 'AudioBuffer returned by oncomplete and promise are identical') |
| .beTrue(); |
| } |
| |
| function checkResult(task, should, event) { |
| renderedData = event.renderedBuffer; |
| promise.then(function(result) { |
| promiseData = result; |
| compareData(should); |
| task.done(); |
| }); |
| } |
| |
| // Create an offline context and verify that both the oncomplete and |
| // promise are returned with the same stuff. |
| audit.define( |
| { |
| label: 'test', |
| description: |
| 'OfflineAudioContext.startRendering Promise with oncomplete' |
| }, |
| (task, should) => { |
| context = new OfflineAudioContext( |
| contextChannels, renderFrames, sampleRate); |
| |
| let buffer = |
| context.createBuffer(contextChannels, renderFrames, sampleRate); |
| for (let k = 0; k < renderFrames; ++k) { |
| buffer.getChannelData(0)[k] = 1; |
| buffer.getChannelData(1)[k] = 2; |
| } |
| |
| let source = context.createBufferSource(); |
| source.buffer = buffer; |
| source.connect(context.destination); |
| source.start(); |
| |
| context.oncomplete = (event) => { |
| checkResult(task, should, event); |
| }; |
| |
| promise = context.startRendering(); |
| |
| }); |
| |
| audit.run(); |
| </script> |
| </body> |
| </html> |
