third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-placeholder-createImageBitmap.html - Issue 2738773004: No longer clamp setTimeout(..., 0) to 1ms.

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Issue 2738773004: No longer clamp setTimeout(..., 0) to 1ms. (Closed)

Patch Set: update webgl2 conformance expectations as well Created 3 years, 8 months ago

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1 <!DOCTYPE HTML>	1 <!DOCTYPE HTML>

2 <html>	2 <html>

3 <head>	3 <head>

4 <script src="../../resources/testharness.js"></script>	4 <script src="../../resources/testharness.js"></script>

5 <script src="../../resources/testharnessreport.js"></script>	5 <script src="../../resources/testharnessreport.js"></script>

6 </head>	6 </head>

7 <body>	7 <body>

8 <script>	8 <script>

9 async_test(function(t) {	9 async_test(function(t) {

10 var canvas = document.createElement('canvas');	10 var canvas = document.createElement('canvas');

11 var offscreen = canvas.transferControlToOffscreen();	11 var offscreen = canvas.transferControlToOffscreen();

12 var ctx = offscreen.getContext('2d');	12 var ctx = offscreen.getContext('2d');

13 ctx.fillStyle = '#0f0';	13 ctx.fillStyle = '#0f0';

14 ctx.fillRect(0, 0, canvas.width, canvas.height);	14 ctx.fillRect(0, 0, canvas.width, canvas.height);

15 ctx.commit();	15 ctx.commit();

16	16

17 var testCanvas = document.createElement('canvas');	17 var testCanvas = document.createElement('canvas');

18 var testCtx = testCanvas.getContext('2d');	18 var testCtx = testCanvas.getContext('2d');

19	19

20 createImageBitmap(canvas).then(image => {	20 createImageBitmap(canvas).then(image => {

21 testCtx.drawImage(image, 0, 0);	21 testCtx.drawImage(image, 0, 0);

22 t.step( function() {	22 t.step( function() {

23 var pixel = testCtx.getImageData(0, 0, 1, 1).data;	23 var pixel = testCtx.getImageData(0, 0, 1, 1).data;

24 var expectedValue = [0, 0, 0, 0]; // pixel is blank because commit() is as ync	24 var expectedValue = [0, 0, 0, 0]; // pixel is blank because commit() is as ync

25 assert_array_equals(pixel, expectedValue, "Verify that commit() is not syn chronous.");	25 assert_array_equals(pixel, expectedValue, "Verify that commit() is not syn chronous.");

26 });	26 });

27	27

28 // The call to setTimeout acts as a synchronization barrier to guarantee tha t	28 // TODO(junov): Use the Promise returned by commit to schedule after the

29 // the commit has propagated.	29 // commit. (crbug.com/709484)

30 setTimeout(function() {	30 setTimeout(function() {

31 createImageBitmap(canvas).then(image => {	31 setTimeout(function() {

32 testCtx.drawImage(image, 0, 0);	32 createImageBitmap(canvas).then(image => {

33 t.step( function() {	33 testCtx.drawImage(image, 0, 0);

34 var pixel = testCtx.getImageData(0, 0, 1, 1).data;	34 t.step( function() {

35 var expectedValue = [0, 255, 0, 255];	35 var pixel = testCtx.getImageData(0, 0, 1, 1).data;

36 assert_array_equals(pixel, expectedValue, "Verify that async update of placeholder propagated through createImageData");	36 var expectedValue = [0, 255, 0, 255];

	37 assert_array_equals(pixel, expectedValue, "Verify that async update of placeholder propagated through createImageData");

	38 });

	39 t.done();

37 });	40 });

38 t.done();	41 }, 0);

39 });

40 }, 0);	42 }, 0);

41 });	43 });

42 }, "Test whether createImageBitmap on a placeholder canvas captures the image co mmitted to the associated OffscreenCanvas.");	44 }, "Test whether createImageBitmap on a placeholder canvas captures the image co mmitted to the associated OffscreenCanvas.");

43 </script>	45 </script>

44 </body>	46 </body>

45 </html>	47 </html>

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