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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| 3 <title>OffscreenCanvas test: 2d.imageData.create2.initial</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>2d.imageData.create2.initial</h1> |
| 9 <p class="desc">createImageData(sw, sh) returns transparent black data of the ri
ght size</p> |
| 10 |
| 11 |
| 12 <script> |
| 13 var t = async_test("createImageData(sw, sh) returns transparent black data of th
e right size"); |
| 14 t.step(function() { |
| 15 |
| 16 var offscreenCanvas = new OffscreenCanvas(100, 50); |
| 17 var ctx = offscreenCanvas.getContext('2d'); |
| 18 |
| 19 var imgdata = ctx.createImageData(10, 20); |
| 20 _assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.l
ength", "imgdata.width*imgdata.height*4"); |
| 21 _assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height"); |
| 22 _assert(imgdata.width > 0, "imgdata.width > 0"); |
| 23 var isTransparentBlack = true; |
| 24 for (var i = 0; i < imgdata.data.length; ++i) |
| 25 if (imgdata.data[i] !== 0) |
| 26 isTransparentBlack = false; |
| 27 _assert(isTransparentBlack, "isTransparentBlack"); |
| 28 |
| 29 t.done(); |
| 30 |
| 31 }); |
| 32 </script> |
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Chromium Code Reviews
Issue 2550713004:
Import wpt@5915964199b07226bf6d8fbb177a63b1f272907a (Closed)
