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1 <!DOCTYPE html> | |
2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> | |
3 <title>OffscreenCanvas test: initial.reset.different</title> | |
4 <script src="/resources/testharness.js"></script> | |
5 <script src="/resources/testharnessreport.js"></script> | |
6 <script src="/common/canvas-tests.js"></script> | |
7 | |
8 <h1>initial.reset.different</h1> | |
9 <p class="desc">Changing size resets canvas to transparent black</p> | |
10 | |
11 | |
12 <script> | |
13 var t = async_test("Changing size resets canvas to transparent black"); | |
14 t.step(function() { | |
15 | |
16 var offscreenCanvas = new OffscreenCanvas(100, 50); | |
17 var ctx = offscreenCanvas.getContext('2d'); | |
18 | |
19 ctx.fillStyle = '#f00'; | |
20 ctx.fillRect(0, 0, 50, 50); | |
21 _assertPixel(offscreenCanvas, 20,20, 255,0,0,255, "20,20", "255,0,0,255"); | |
22 offscreenCanvas.width = 50; | |
23 _assertPixel(offscreenCanvas, 20,20, 0,0,0,0, "20,20", "0,0,0,0"); | |
24 | |
25 t.done(); | |
26 | |
27 }); | |
28 </script> | |
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