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Issue 1589923002:
Add more layout test cases to createImageBitmap (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master| Index: third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-from-canvas-toBlob.html |
| diff --git a/third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-from-canvas-toBlob.html b/third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-from-canvas-toBlob.html |
| new file mode 100644 |
| index 0000000000000000000000000000000000000000..99da913b175c5b493ab9beeae821a4a051129c44 |
| --- /dev/null |
| +++ b/third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-from-canvas-toBlob.html |
| @@ -0,0 +1,47 @@ |
| +<!DOCTYPE html> |
| +<script src="../../resources/js-test.js"></script> |
| +<script> |
| +jsTestIsAsync = true; |
| + |
| +description("Tests that createImageBitmap from a canvas.toBlob object should have the same pixel data as the blob."); |
| + |
| +var imageData2; |
| +var imageData3; |
| + |
| +var canvas1 = document.createElement("canvas"); |
| +var ctx1 = canvas1.getContext("2d"); |
| +ctx1.fillStyle = "#FF0000"; |
| +ctx1.fillRect(0, 0, 150, 75); |
| + |
| +var newImg = new Image(); |
| +newImg.onload = function() { |
| + var canvas3 = document.createElement("canvas"); |
| + var ctx3 = canvas3.getContext("2d"); |
| + ctx3.drawImage(newImg, 0, 0, 150, 75); |
| + |
| + imageData3 = ctx3.getImageData(0, 0, 150, 75).data; |
| + var imageMatched = true; |
| + for (var i = 1; i < imageData2.length; i++) { |
| + if (imageData2[i] != imageData3[i]) { |
| + imageMatched = false; |
| + break; |
| + } |
| + } |
| + if (imageMatched) |
| + testPassed("image data from the created ImageBitmap and the originated blob is the same"); |
| + else |
| + testFailed("image data from the created ImageBitmap and the originated blob is NOT the same"); |
| + finishJSTest(); |
| +} |
| + |
| +canvas1.toBlob(function(blob) { |
| + createImageBitmap(blob).then(imageBitmap => { |
|
Justin Novosad
2016/01/14 15:02:53
As discussed on blink-dev, there may be concurrenc
|
| + var canvas2 = document.createElement("canvas"); |
| + var ctx2 = canvas2.getContext("2d"); |
| + ctx2.drawImage(imageBitmap, 0, 0, 150, 75); |
| + imageData2 = ctx2.getImageData(0, 0, 150, 75).data; |
| + url = URL.createObjectURL(blob); |
| + newImg.src = url; |
| + }); |
| +}); |
| +</script> |
