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Issue 1792623002: Revise layout tests to avoid race condition (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: nits Created 4 years, 9 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 <html> 2 <html>
3 <head> 3 <head>
4 <script src="../../../../resources/js-test.js"></script> 4 <script src="../../../../resources/js-test.js"></script>
5 </head> 5 </head>
6 <body> 6 <body>
7 <script> 7 <script>
8 jsTestIsAsync = true; 8 jsTestIsAsync = true;
9 var worker = startWorker('../../../../fast/canvas/resources/canvas-createImageBi tmap-blob-in-workers.js'); 9 var worker = new Worker('../../../../fast/canvas/resources/canvas-createImageBit map-blob-in-workers.js');
10 10
11 description('Test createImageBitmap with blob in workers.'); 11 description('Test race condition for createImageBitmap from blob in workers and main.');
12 12
13 var imgWidth = 20; 13 var imgWidth = 20;
14 var imgHeight = 20; 14 var imgHeight = 20;
15 var imageData2;
16 var numOfBitmaps = 5; 15 var numOfBitmaps = 5;
17 var bitmapArray = []; 16 var bitmapArray = [];
18 17
19 var canvas1 = document.createElement("canvas"); 18 var canvas1 = document.createElement("canvas");
20 var ctx1 = canvas1.getContext("2d"); 19 var ctx1 = canvas1.getContext("2d");
21 ctx1.fillStyle = "#FF0000"; 20 ctx1.fillStyle = "#FF0000";
22 ctx1.fillRect(0, 0, imgWidth, imgHeight); 21 ctx1.fillRect(0, 0, imgWidth, imgHeight);
23 22
24 function compareImageData(data1, data2) 23 function compareImageData(data1, data2)
25 { 24 {
26 if (data1.length != data2.length) { 25 if (data1.length != data2.length) {
27 testFailed("The two image have different dimensions"); 26 testFailed("The two image have different dimensions");
28 finishJSTest(); 27 finishJSTest();
29 } 28 }
30 for (var i = 0; i < data1.length; i++) { 29 for (var i = 0; i < data1.length; i++) {
31 if (data1[i] != data2[i]) { 30 if (data1[i] != data2[i]) {
32 testFailed("The two image have different pixel data"); 31 testFailed("The two image have different pixel data");
33 finishJSTest(); 32 finishJSTest();
34 } 33 }
35 } 34 }
36 } 35 }
37 36
37 var getMessageFromWorker = new Promise((resolve, reject) => {
38 function onMessage(e) {
39 resolve(e.data.data);
40 worker.removeEventListener("message", onMessage);
41 }
42 worker.addEventListener("message", onMessage);
43 });
44
45 // check that the created ImageBitmaps from worker and main have the same pixel
46 // data as the source, which is the canvas1.toBlob
38 var newImg = new Image(); 47 var newImg = new Image();
39 newImg.onload = function() { 48 canvas1.toBlob(function(blob) {
40 var canvas2 = document.createElement("canvas"); 49 worker.postMessage(blob);
41 var ctx2 = canvas2.getContext("2d"); 50 for (var i = 0; i < numOfBitmaps; i++) {
42 ctx2.drawImage(newImg, 0, 0, imgWidth, imgHeight); 51 createImageBitmap(blob).then(imageBitmap => {
43 imageData2 = ctx2.getImageData(0, 0, imgWidth, imgHeight).data; 52 bitmapArray.push(imageBitmap);
53 if (bitmapArray.length == numOfBitmaps) {
54 var url = URL.createObjectURL(blob);
55 newImg.src = url;
56 }
57 });
58 }
59 });
44 60
61 var imageLoaded = new Promise((resolve, reject) => {
62 newImg.onload = function() {
63 var canvas2 = document.createElement("canvas");
64 var ctx2 = canvas2.getContext("2d");
65 ctx2.drawImage(newImg, 0, 0, imgWidth, imgHeight);
66 resolve(ctx2.getImageData(0, 0, imgWidth, imgHeight).data);
67 };
68 });
69
70 Promise.all([imageLoaded, getMessageFromWorker]).then(([imageDataFromImg, imageB itmapFromWorker]) => {
45 var canvas3 = document.createElement("canvas"); 71 var canvas3 = document.createElement("canvas");
46 var ctx3 = canvas3.getContext("2d"); 72 var ctx3 = canvas3.getContext("2d");
47 for (var i = 0; i < numOfBitmaps; i++) { 73 for (var i = 0; i < numOfBitmaps; i++) {
48 ctx3.clearRect(0, 0, imgWidth, imgHeight); 74 ctx3.clearRect(0, 0, imgWidth, imgHeight);
49 ctx3.drawImage(bitmapArray[i], 0, 0, imgWidth, imgHeight); 75 ctx3.drawImage(bitmapArray[i], 0, 0, imgWidth, imgHeight);
50 var imageData = ctx3.getImageData(0, 0, imgWidth, imgHeight).data; 76 var imageData = ctx3.getImageData(0, 0, imgWidth, imgHeight).data;
51 compareImageData(imageData, imageData2); 77 compareImageData(imageData, imageDataFromImg);
52 } 78 }
53 79
54 worker.onmessage = function(e) { 80 ctx3.clearRect(0, 0, imgWidth, imgHeight);
55 var newImageBitmap = e.data.data; 81 ctx3.drawImage(imageBitmapFromWorker, 0, 0, imgWidth, imgHeight);
56 ctx3.clearRect(0, 0, imgWidth, imgHeight); 82 var imageData = ctx3.getImageData(0, 0, imgWidth, imgHeight).data;
57 ctx3.drawImage(newImageBitmap, 0, 0, imgWidth, imgHeight); 83 compareImageData(imageData, imageDataFromImg);
58 var imageData = ctx3.getImageData(0, 0, imgWidth, imgHeight).data; 84 testPassed("ImageBitmaps created from blob in worker and in main have the sa me pixel data");
59 compareImageData(imageData, imageData2); 85 finishJSTest();
60 testPassed("ImageBitmaps created from blob in worker and in main have th e same pixel data");
61 finishJSTest();
62 }
63 }
64
65 canvas1.toBlob(function(blob) {
66 worker.postMessage(blob);
67 var setImgSrc = false;
68 for (var i = 0; i < numOfBitmaps; i++) {
69 createImageBitmap(blob).then(imageBitmap => {
70 bitmapArray.push(imageBitmap);
71 if (i >= numOfBitmaps - 1 && setImgSrc == false) {
72 var url = URL.createObjectURL(blob);
73 newImg.src = url;
74 setImgSrc = true;
75 }
76 });
77 }
78 }); 86 });
79 87
80 </script> 88 </script>
81 </body> 89 </body>
82 </html> 90 </html>
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