| // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.shadow.image.alpha |
| // Description:Shadows are drawn correctly for partially-transparent images |
| // Note: |
| |
| importScripts("/resources/testharness.js"); |
| importScripts("/html/canvas/resources/canvas-tests.js"); |
| |
| promise_test(async t => { |
| var canvas = new OffscreenCanvas(100, 50); |
| var ctx = canvas.getContext('2d'); |
| |
| ctx.fillStyle = '#f00'; |
| ctx.fillRect(0, 0, 100, 50); |
| ctx.shadowOffsetY = 50; |
| ctx.shadowColor = '#00f'; |
| var response = await fetch('/images/transparent50.png') |
| var blob = await response.blob(); |
| var img = await createImageBitmap(blob); |
| ctx.drawImage(img, 0, -50); |
| |
| _assertPixelApprox(canvas, 50,25, 127,0,127,255, 2); |
| }, "Shadows are drawn correctly for partially-transparent images"); |
| done(); |