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30 lines
1 KiB
HTML
30 lines
1 KiB
HTML
<!DOCTYPE html>
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<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
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<title>OffscreenCanvas test: 2d.composite.uncovered.nocontext.source-in</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/canvas-tests.js"></script>
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<h1>2d.composite.uncovered.nocontext.source-in</h1>
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<p class="desc">drawImage() of a canvas with no context draws pixels as (0,0,0,0), and does not leave the pixels unchanged.</p>
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<script>
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var t = async_test("drawImage() of a canvas with no context draws pixels as (0,0,0,0), and does not leave the pixels unchanged.");
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t.step(function() {
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var offscreenCanvas = new OffscreenCanvas(100, 50);
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var ctx = offscreenCanvas.getContext('2d');
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ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
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ctx.fillRect(0, 0, 100, 50);
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ctx.globalCompositeOperation = 'source-in';
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var offscreenCanvas2 = new OffscreenCanvas(100, 50);
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ctx.drawImage(offscreenCanvas2, 0, 0);
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_assertPixelApprox(offscreenCanvas, 50,25, 0,0,0,0, "50,25", "0,0,0,0", 5);
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t.done();
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});
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</script>
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