third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-transferControlToOffscreen.html - Issue 2294963002: Submit Compositor Frame from OffscreenCanvas on main

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Issue 2294963002: Submit Compositor Frame from OffscreenCanvas on main (Closed)

Patch Set: a test to ensure resizing on transferred offscreencanvas has no effect Created 4 years, 3 months ago

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1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">	1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">

2 <html>	2 <html>

3 <head>	3 <head>

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

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

5 </head>	6 </head>

6 <body>	7 <body>

7 <script>	8 <script>

8

9 description("Test transferControlToOffscreen.");

10 window.jsTestIsAsync = true;

11

12 function createCanvas(width, height) {	9 function createCanvas(width, height) {

13 var canvas = document.createElement("canvas");	10 var canvas = document.createElement("canvas");

14 canvas.width = width;	11 canvas.width = width;

15 canvas.height = height;	12 canvas.height = height;

16 return canvas;	13 return canvas;

17 }	14 }

18	15

19 // Tests whether transferControlToOffscreen can be run correctly.	16 test(function() {

20 var width = 50;	17 var width = 50;

21 var height = 50;	18 var height = 50;

22 var canvas1 = createCanvas(width, height);	19 var canvas1 = createCanvas(width, height);

23 var offscreenCanvas1;	20 var offscreenCanvas1;

24 try {	21 try {

25 offscreenCanvas1 = canvas1.transferControlToOffscreen();	22 offscreenCanvas1 = canvas1.transferControlToOffscreen();

26 testPassed("Successfully created layer for offscreencanvas");	23 assert_equals(offscreenCanvas1.width, width);

27 shouldBe("offscreenCanvas1.width", "width");	24 assert_equals(offscreenCanvas1.height, height);

28 shouldBe("offscreenCanvas1.height", "height");	25 } catch (ex) {

29 } catch (ex) {	26 assert_false(ex.message);

30 testFailed(ex.message);	27 }

31 }	28 }, "Tests whether transferControlToOffscreen can be run correctly.");

32	29

33 // Tests whether transferControlToOffscreen throws exception correctly.	30 test(function() {

34 var canvas2 = createCanvas(50, 50);	31 var canvas2 = createCanvas(50, 50);

35 var offscreenCanvas2;	32 var offscreenCanvas2;

36 var ctx = canvas2.getContext("2d");	33 var ctx = canvas2.getContext("2d");

37 try {	34 assert_throws("InvalidStateError", function() {

38 offscreenCanvas2 = canvas2.transferControlToOffscreen();	35 offscreenCanvas2 = canvas2.transferControlToOffscreen();

39 testFailed("transferControlToOffscreen from a canvas with context didn't thr ow an exception.");	36 assert_false("transferControlToOffscreen from a canvas with context didn 't throw an exception.");

40 } catch (ex) {	37 }, "transferControlToOffscreen from a canvas with context throws an exceptio n");

41 testPassed("transferControlToOffscreen from a canvas with context throws an exception: " + ex);	38 }, "Tests whether transferControlToOffscreen throws exception correctly.");

42 }

43	39

44 finishJSTest();	40 test(function() {

	41 var canvas3 = createCanvas(10, 10);

	42 var offscreenCanvas3 = canvas3.transferControlToOffscreen();

	43 assert_equals(offscreenCanvas3.width, 10);

	44 assert_equals(offscreenCanvas3.height, 10);

	45 offscreenCanvas3.width = 20;

	46 offscreenCanvas3.height = 20;

	47 assert_equals(offscreenCanvas3.width, 10);

	48 assert_equals(offscreenCanvas3.height, 10);

	49 }, "Test if resizing on offscreencanvas transferred from html canvas has no effe ct");

	50

45 </script>	51 </script>

46 </body>	52 </body>

47 </html>	53 </html>

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