| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| Test MessagePort in AudioWorkletNode and AudioWorkletProcessor |
| </title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/webaudio/resources/audit.js"></script> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| let audit = Audit.createTaskRunner(); |
| |
| let context = new AudioContext(); |
| |
| let filePath = 'processors/port-processor.js'; |
| |
| // Creates an AudioWorkletNode and sets an EventHandler on MessagePort |
| // object. The associated PortProcessor will post a message upon its |
| // construction. Test if the message is received correctly. |
| audit.define( |
| 'Test postMessage from AudioWorkletProcessor to AudioWorkletNode', |
| (task, should) => { |
| let porterWorkletNode = |
| new AudioWorkletNode(context, 'port-processor'); |
| |
| // Upon the creation of PortProcessor, it will post a message to the |
| // node with 'created' status. |
| porterWorkletNode.port.onmessage = (event) => { |
| should(event.data.state, |
| 'The initial message from PortProcessor') |
| .beEqualTo('created'); |
| task.done(); |
| }; |
| }); |
| |
| // PortProcessor is supposed to echo the message back to the |
| // AudioWorkletNode. |
| audit.define( |
| 'Test postMessage from AudioWorkletNode to AudioWorkletProcessor', |
| (task, should) => { |
| let porterWorkletNode = |
| new AudioWorkletNode(context, 'port-processor'); |
| |
| porterWorkletNode.port.onmessage = (event) => { |
| // Ignore if the delivered message has |state|. This is already |
| // tested in the previous task. |
| if (event.data.state) |
| return; |
| |
| should(event.data.message, |
| 'The response from PortProcessor') |
| .beEqualTo('hello'); |
| task.done(); |
| }; |
| |
| porterWorkletNode.port.postMessage('hello'); |
| }); |
| |
| context.audioWorklet.addModule(filePath).then(() => { |
| audit.run(); |
| }); |
| </script> |
| </body> |
| </html> |
