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+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.html
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+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.basic</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.basic</h1>
+<p class="desc">putImageData() puts image data from getImageData() onto the canvas</p>
+
+
+<script>
+var t = async_test("putImageData() puts image data from getImageData() onto the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+ var canvas = new OffscreenCanvas(100, 50);
+ var ctx = canvas.getContext('2d');
+
+ ctx.fillStyle = '#0f0';
+ ctx.fillRect(0, 0, 100, 50)
+ var imgdata = ctx.getImageData(0, 0, 100, 50);
+ ctx.fillStyle = '#f00';
+ ctx.fillRect(0, 0, 100, 50)
+ ctx.putImageData(imgdata, 0, 0);
+ _assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+ t.done();
+
+});
+</script>