31 lines
780 B
HTML
31 lines
780 B
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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<head>
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<script src="../../resources/js-test-pre.js"></script>
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</head>
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<body>
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<script>
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description("Series of tests to ensure correct behaviour of composite on a fully transparent color.");
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var ctx = document.createElement('canvas').getContext('2d');
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ctx.globalCompositeOperation = "source-over";
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ctx.fillStyle = 'rgba(0,0,0,0)';
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ctx.fillRect(0,0,100,100);
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ctx.save();
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ctx.translate(0,100);
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ctx.scale(1,-1);
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ctx.fillStyle = 'green';
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ctx.fillRect(0,0,100,100);
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ctx.restore();
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var imageData = ctx.getImageData(1, 1, 98, 98);
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var imgdata = imageData.data;
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shouldBe("imgdata[4]", "0");
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shouldBe("imgdata[5]", "128");
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shouldBe("imgdata[6]", "0");
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</script>
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<script src="../../resources/js-test-post.js"></script>
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</body>
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</html>
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