2d.gradient.conic.positive.rotation.html

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This test has a WPT meta file that disables it given conditions:
- (os == "win") and not swgl : https://bugzilla.mozilla.org/show_bug.cgi?id=1847850
This WPT test may be referenced by the following Test IDs:
- /html/canvas/element/fill-and-stroke-styles/2d.gradient.conic.positive.rotation.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->

<meta charset="UTF-8">

<title>Canvas test: 2d.gradient.conic.positive.rotation</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/html/canvas/resources/canvas-tests.js"></script>

<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">

<body class="show_output">

<h1>2d.gradient.conic.positive.rotation</h1>

<p class="desc">Conic gradient with positive rotation</p>

<p class="output">Actual output:</p>

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

<p class="output expectedtext">Expected output:<p><img src="/images/green-100x50.png" class="output expected" id="expected" alt="">

<ul id="d"></ul>

<script>

var t = async_test("Conic gradient with positive rotation");

_addTest(function(canvas, ctx) {

  const g = ctx.createConicGradient(3*Math.PI/2, 50, 25);

  // It's red in the upper right region and green on the lower left region

  g.addColorStop(0, "#f00");

  g.addColorStop(0.25, "#0f0");

  g.addColorStop(0.50, "#0f0");

  g.addColorStop(0.75, "#f00");

  ctx.fillStyle = g;

  ctx.fillRect(0, 0, 100, 50);

  _assertPixelApprox(canvas, 25,15, 255,0,0,255, 3);

  _assertPixelApprox(canvas, 75,40, 0,255,0,255, 3);

});

</script>