| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| Test if starting source node does not resume an explicitly suspended |
| context |
| </title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="../resources/audit.js"></script> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| const audit = Audit.createTaskRunner(); |
| const autoplayFlag = internals.settings.autoplayIgnoresWebAudioEnabled; |
| |
| internals.settings.setAutoplayPolicy('document-user-activation-required'); |
| internals.settings.autoplayIgnoresWebAudioEnabled = false; |
| |
| // Suspend a context explicitly and then start a source node after |
| // user gesture. The context state should stay the same. |
| audit.define({label: 'suspend-and-start'}, async (task, should) => { |
| const context = new AudioContext(); |
| const source = new OscillatorNode(context); |
| source.connect(context.destination); |
| |
| await context.suspend(); |
| should(context.state, 'The context state after explicit suspension') |
| .beEqualTo('suspended'); |
| |
| // Starting a source node should not unlock an explicitly suspended |
| // context, even if the event is originated from user gesture. |
| await emulateUserGesture(); |
| source.start(); |
| should(context.state, |
| 'The context state after user gesture followed by source start') |
| .beEqualTo('suspended'); |
| |
| task.done(); |
| }); |
| |
| audit.define({label: 'clean-up'}, (task, should) => { |
| internals.runtimeFlags.autoplayIgnoresWebAudioEnabled = autoplayFlag; |
| internals.settings.setAutoplayPolicy('no-user-gesture-required'); |
| task.done(); |
| }); |
| |
| audit.run(); |
| |
| function emulateUserGesture() { |
| return new Promise((resolve, reject) => { |
| chrome.gpuBenchmarking.pointerActionSequence([{ |
| source: 'mouse', |
| actions: [ |
| { name: 'pointerDown', x: 1, y: 1 }, |
| { name: 'pointerUp' }, |
| ] |
| }], resolve); |
| }); |
| } |
| </script> |
| </body> |
| </html> |
