| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| OfflineAudioContext - Thread Smoke Test |
| </title> |
| <script src="../../imported/w3c/web-platform-tests/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(); |
| |
| // The common sample rate. |
| const sampleRate = 48000; |
| |
| // To make channel count and buffer length irrelevant to this test. |
| const numberOfChannels = 1; |
| const renderLength = 1; |
| |
| // 1000 concurrent contexts caused this test to time out on Mac OS and |
| // Linux. (See: crbug.com/1092145, crbug.com/741699) |
| const maxNumberOfContexts = 500; |
| |
| let contexts = []; |
| |
| // For recursive and sequential rendering of multiple context. |
| function recurseContextRendering(index, oncomplete) { |
| if (index < maxNumberOfContexts) { |
| contexts[index].startRendering().then(() => { |
| recurseContextRendering(index + 1, oncomplete); |
| }); |
| } else { |
| oncomplete(index); |
| } |
| } |
| |
| // Create contexts up front, but do not start rendering. Based on |
| // crbug.com/716800, this caused a crash with out-of-threads error. |
| audit.define( |
| { |
| label: 'context-creation-smoketest', |
| description: |
| 'Creating ' + maxNumberOfContexts + ' contexts up front.' |
| }, |
| (task, should) => { |
| let i; |
| for (i = 0; i < maxNumberOfContexts; ++i) { |
| contexts.push(new OfflineAudioContext( |
| numberOfChannels, renderLength, sampleRate)); |
| } |
| should(i, 'The number of created contexts without a crash') |
| .beEqualTo(maxNumberOfContexts); |
| task.done(); |
| }); |
| |
| // Create contexts, render and drop them sequentially. This should not |
| // crash the browser with out-of-threads error. |
| audit.define( |
| { |
| label: 'rendering-thread-smoketest', |
| description: |
| 'Rendering ' + maxNumberOfContexts + ' contexts sequentially.' |
| }, |
| (task, should) => { |
| recurseContextRendering(0, (counter) => { |
| should(counter, 'The number of contexts rendered without a crash') |
| .beEqualTo(maxNumberOfContexts); |
| task.done(); |
| }); |
| }); |
| |
| audit.run(); |
| </script> |
| </body> |
| </html> |
