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<!DOCTYPE HTML>
<html>
<body>
<script src="../../resources/js-test.js"></script>
<script type="text/javascript">
description("Verifies createPattern using a source image that is a canvas 40k pixels wide.");
// This test does not currently succeed because skia does not handle
// canvases more than 32k pixels wide. For now, this test serves the
// purpose of verifying that this use case does not crash the browser.
// Crasher bug: crbug.com/281504
var canvas = document.createElement('canvas');
canvas.width = 40000;
var context = canvas.getContext('2d');
context.fillStyle = '#0f0';
context.fillRect(0, 0, 1, 1);
var dstCanvas = document.createElement('canvas');
var dstContext = dstCanvas.getContext('2d');
var pattern = dstContext.createPattern(canvas, 'repeat');
dstContext.fillStyle = pattern;
dstContext.fillRect(0, 0, dstCanvas.width, dstCanvas.height);
var imageData = dstContext.getImageData(0, 0, 1, 1);
var imgdata = imageData.data;
shouldBe("imgdata[0]", "0");
shouldBe("imgdata[1]", "255");
shouldBe("imgdata[2]", "0");
shouldBe("imgdata[3]", "255");
imageData = dstContext.getImageData(1, 0, 1, 1);
imgdata = imageData.data;
shouldBe("imgdata[0]", "0");
shouldBe("imgdata[1]", "0");
shouldBe("imgdata[2]", "0");
shouldBe("imgdata[3]", "0");
imageData = dstContext.getImageData(0, 1, 1, 1);
imgdata = imageData.data;
shouldBe("imgdata[0]", "0");
shouldBe("imgdata[1]", "0");
shouldBe("imgdata[2]", "0");
shouldBe("imgdata[3]", "0");
</script>
</body>
</html>
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