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| (Empty) | |
| 1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> |
| 2 <html> |
| 3 <head> |
| 4 <script src="../../resources/js-test.js"></script> |
| 5 </head> |
| 6 <body> |
| 7 <script> |
| 8 |
| 9 description("Test OffscreenCanvas transferable with exception cases."); |
| 10 window.jsTestIsAsync = true; |
| 11 |
| 12 var worker = new Worker('./resources/OffscreenCanvas-transferable.js'); |
| 13 |
| 14 var width = 50; |
| 15 var height = 50; |
| 16 var offscreenCanvas1 = new OffscreenCanvas(width, height); |
| 17 |
| 18 var ctx; |
| 19 shouldNotThrow("ctx = offscreenCanvas1.getContext('2d')"); |
| 20 shouldBeType("ctx", "OffscreenCanvasRenderingContext2D"); |
| 21 try { |
| 22 worker.postMessage({data: offscreenCanvas1}, [offscreenCanvas1]); |
| 23 testFailed("Transfer an offscreenCanvas with a context succeed, expected to
fail"); |
| 24 } catch(e) { |
| 25 testPassed("Transfer an offscreenCanvas with a context should throw an excep
tion: " + e); |
| 26 } |
| 27 |
| 28 var offscreenCanvas2 = new OffscreenCanvas(width, height); |
| 29 worker.postMessage({data: offscreenCanvas2}, [offscreenCanvas2]); |
| 30 try { |
| 31 var image = offscreenCanvas2.transferToImageBitmap(); |
| 32 testFailed("Calling transferToImageBitmap from a neutered offscreenCanvas su
cceed, expected to fail"); |
| 33 } catch(e) { |
| 34 testPassed("Calling transferToImageBitmap from a neutered offscreenCanvas sh
ould throw an exception: " + e); |
| 35 } |
| 36 |
| 37 try { |
| 38 worker.postMessage({data: offscreenCanvas2}, [offscreenCanvas2]); |
| 39 testFailed("Transfer a neutered offscreenCanvas succeed, expected to fail"); |
| 40 } catch(e) { |
| 41 testPassed("Transfer a neutered offscreenCanvas should throw an exception: "
+ e); |
| 42 } |
| 43 |
| 44 try { |
| 45 var ctx = offscreenCanvas2.getContext('2d'); |
| 46 testFailed("Calling getContext('2d') from a neutered offscreenCanvas succeed
, expected to fail"); |
| 47 } catch(e) { |
| 48 testPassed("Calling getContext('2d') from a neutered offscreenCanvas should
throw an exception: " + e); |
| 49 } |
| 50 |
| 51 finishJSTest(); |
| 52 </script> |
| 53 </body> |
| 54 </html> |
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Chromium Code Reviews
Issue 1862033002:
Make OffscreenCanvas Transferable (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master