third_party/WebKit/LayoutTests/fast/canvas/canvas-ImageBitmap-close.html - Issue 1911793003: drawImage throw when ImageBitmap is neutered

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Issue 1911793003: drawImage throw when ImageBitmap is neutered (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: address comments Created 4 years, 8 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <script src="../../resources/js-test.js"></script>	2 <script src="../../resources/js-test.js"></script>

3 <script>	3 <script>

4 jsTestIsAsync = true;	4 jsTestIsAsync = true;

5 var worker = new Worker('./resources/worker-onmessage-noop.js');	5 var worker = new Worker('./resources/worker-onmessage-noop.js');

6	6

7 description("Tests that the close method of ImageBitmap does dispose the image d ata");	7 description("Tests that the close method of ImageBitmap does dispose the image d ata");

8	8

9 var imgHeight = 10;	9 var imgHeight = 10;

10 var imgWidth = 10;	10 var imgWidth = 10;

11 var imageData = new ImageData(10, 10);	11 var imageData = new ImageData(10, 10);

12 var bitmap;	12 var bitmap;

	13 var ctx;

13 createImageBitmap(imageData).then(imageBitmap => {	14 createImageBitmap(imageData).then(imageBitmap => {

14 bitmap = imageBitmap;	15 bitmap = imageBitmap;

15 shouldBe("bitmap.width", "imgWidth");	16 shouldBe("bitmap.width", "imgWidth");

16 shouldBe("bitmap.height", "imgHeight");	17 shouldBe("bitmap.height", "imgHeight");

17	18

18 // Apply structured clone to the bitmap, nothing should be changed	19 // Apply structured clone to the bitmap, nothing should be changed

19 worker.postMessage({data: bitmap});	20 worker.postMessage({data: bitmap});

20 shouldBe("bitmap.width", "imgWidth");	21 shouldBe("bitmap.width", "imgWidth");

21 shouldBe("bitmap.height", "imgHeight");	22 shouldBe("bitmap.height", "imgHeight");

22	23

23 // After calling close, the image data associated with the bitmap should no longer exist	24 // After calling close, the image data associated with the bitmap should no longer exist

24 bitmap.close();	25 bitmap.close();

25 shouldBe("bitmap.width", "0");	26 shouldBe("bitmap.width", "0");

26 shouldBe("bitmap.height", "0");	27 shouldBe("bitmap.height", "0");

27	28

	29 var canvas = document.createElement("canvas");

	30 canvas.width = imgWidth;

	31 canvas.height = imgHeight;

	32 ctx = canvas.getContext("2d");

	33 shouldThrow("ctx.drawImage(bitmap, 0, 0)");

	34

28 // Try to apply structured clone to an already closed bitmap	35 // Try to apply structured clone to an already closed bitmap

29 try {	36 try {

30 worker.postMessage({data: bitmap});	37 worker.postMessage({data: bitmap});

31 testFailed("Apply structured clone to an already closed bitmap passed un expectedly");	38 testFailed("Apply structured clone to an already closed bitmap passed un expectedly");

32 } catch(ex) {	39 } catch(ex) {

33 testPassed("Apply structured clone to an already closed bitmap is reject ed as expected: " + ex);	40 testPassed("Apply structured clone to an already closed bitmap is reject ed as expected: " + ex);

34 }	41 }

35	42

36 // Try to apply transfering to an already closed bitmap	43 // Try to apply transfering to an already closed bitmap

37 try {	44 try {

(...skipping 30 matching lines...) Expand all Loading...
68	75

69 // Calling close to a neutered bitmap should be noop.	76 // Calling close to a neutered bitmap should be noop.

70 bitmap.close();	77 bitmap.close();

71 shouldBe("bitmap.width", "0");	78 shouldBe("bitmap.width", "0");

72 shouldBe("bitmap.height", "0");	79 shouldBe("bitmap.height", "0");

73 });	80 });

74 }).catch(function(ex) {	81 }).catch(function(ex) {

75 testFailed("Unexpected failure: " + ex);	82 testFailed("Unexpected failure: " + ex);

76 }).then(() => { finishJSTest(); });	83 }).then(() => { finishJSTest(); });

77 </script>	84 </script>

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