third_party/web_platform_tests/2dcontext/pixel-manipulation/2d.imageData.create2.negative.html

<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>Canvas test: 2d.imageData.create2.negative</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/canvas-tests.js"></script>
<link rel="stylesheet" href="/common/canvas-tests.css">
<body class="show_output">

<h1>2d.imageData.create2.negative</h1>
<p class="desc">createImageData(sw, sh) takes the absolute magnitude of the size arguments</p>


<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>

<ul id="d"></ul>
<script>
var t = async_test("createImageData(sw, sh) takes the absolute magnitude of the size arguments");
_addTest(function(canvas, ctx) {

var imgdata1 = ctx.createImageData(10, 20);
var imgdata2 = ctx.createImageData(-10, 20);
var imgdata3 = ctx.createImageData(10, -20);
var imgdata4 = ctx.createImageData(-10, -20);
_assertSame(imgdata1.data.length, imgdata2.data.length, "imgdata1.data.length", "imgdata2.data.length");
_assertSame(imgdata2.data.length, imgdata3.data.length, "imgdata2.data.length", "imgdata3.data.length");
_assertSame(imgdata3.data.length, imgdata4.data.length, "imgdata3.data.length", "imgdata4.data.length");


});
</script>