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<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.pattern.basic.type</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>
<h1>2d.pattern.basic.type</h1>
<p class="desc"></p>
<script>
promise_test(async t => {
var canvas = new OffscreenCanvas(100, 50);
var ctx = canvas.getContext('2d');
_assertDifferent(window.CanvasPattern, undefined, "window.CanvasPattern", "undefined");
window.CanvasPattern.prototype.thisImplementsCanvasPattern = true;
var response = await fetch('/images/green.png')
var blob = await response.blob();
var img = await createImageBitmap(blob);
var pattern = ctx.createPattern(img, 'no-repeat');
_assert(pattern.thisImplementsCanvasPattern, "pattern.thisImplementsCanvasPattern");
}, "");
</script>
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