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1 <!DOCTYPE html> | |
2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> | |
3 <title>OffscreenCanvas test: 2d.imageData.create2.negative</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.negative</h1> | |
9 <p class="desc">createImageData(sw, sh) takes the absolute magnitude of the size
arguments</p> | |
10 | |
11 | |
12 <script> | |
13 var t = async_test("createImageData(sw, sh) takes the absolute magnitude of the
size arguments"); | |
14 t.step(function() { | |
15 | |
16 var offscreenCanvas = new OffscreenCanvas(100, 50); | |
17 var ctx = offscreenCanvas.getContext('2d'); | |
18 | |
19 var imgdata1 = ctx.createImageData(10, 20); | |
20 var imgdata2 = ctx.createImageData(-10, 20); | |
21 var imgdata3 = ctx.createImageData(10, -20); | |
22 var imgdata4 = ctx.createImageData(-10, -20); | |
23 _assertSame(imgdata1.data.length, imgdata2.data.length, "imgdata1.data.length",
"imgdata2.data.length"); | |
24 _assertSame(imgdata2.data.length, imgdata3.data.length, "imgdata2.data.length",
"imgdata3.data.length"); | |
25 _assertSame(imgdata3.data.length, imgdata4.data.length, "imgdata3.data.length",
"imgdata4.data.length"); | |
26 | |
27 t.done(); | |
28 | |
29 }); | |
30 </script> | |
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