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35 lines
1.2 KiB
HTML
35 lines
1.2 KiB
HTML
<!DOCTYPE HTML>
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<title>Canvas test: 2d.imageData.get.clamp</title>
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<!-- Testing: getImageData() clamps colours to the range [0, 255] -->
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<script src="/MochiKit/MochiKit.js"></script>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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<body>
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<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
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<script>
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SimpleTest.waitForExplicitFinish();
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MochiKit.DOM.addLoadEvent(function () {
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var canvas = document.getElementById('c');
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var ctx = canvas.getContext('2d');
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ctx.fillStyle = 'rgb(-100, -200, -300)';
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ctx.fillRect(0, 0, 100, 50);
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ctx.fillStyle = 'rgb(256, 300, 400)';
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ctx.fillRect(20, 10, 60, 10);
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var imgdata1 = ctx.getImageData(10, 5, 1, 1);
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ok(imgdata1.data[0] === 0, "imgdata1.data[\""+(0)+"\"] === 0");
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ok(imgdata1.data[1] === 0, "imgdata1.data[\""+(1)+"\"] === 0");
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ok(imgdata1.data[2] === 0, "imgdata1.data[\""+(2)+"\"] === 0");
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var imgdata2 = ctx.getImageData(30, 15, 1, 1);
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ok(imgdata2.data[0] === 255, "imgdata2.data[\""+(0)+"\"] === 255");
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ok(imgdata2.data[1] === 255, "imgdata2.data[\""+(1)+"\"] === 255");
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ok(imgdata2.data[2] === 255, "imgdata2.data[\""+(2)+"\"] === 255");
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SimpleTest.finish();
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});
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</script>
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