LayoutTests/fast/canvas/drawImage-with-small-values.html - WebKit - Git at Google

 <!doctype html>
 <html>
 <head>
 <script src="../../resources/js-test-pre.js"></script>
 </head>
 <body>
 <script>
 description("Test canvas context after draw too small surface.");
 if (window.internals)
   internals.settings.setCanvasUsesAcceleratedDrawing(false);

 var tmpimg = document.createElement('canvas');
 tmpimg.width = 720;
 tmpimg.height = 960;
 ctx = tmpimg.getContext('2d');

 var img = document.createElement('canvas');
 img.width = 300;
 img.height = 233;

 ctx.drawImage(img, 337.208496, 735.022339, 225.473785, 0.005207);
 ctx.fillStyle = '#808080';
 ctx.fillRect(0, 0, 100, 100);
 ctx.fillRect(200, 0, 100, 100);

 debug("Test left box.");
 imgdata = ctx.getImageData(0, 0, 1, 1).data;
 shouldBe("imgdata[0]", "128");
 debug("Test right box.");
 imgdata = ctx.getImageData(200, 0, 1, 1).data;
 shouldBe("imgdata[0]", "128");
 </script>
 <script src="../../resources/js-test-post.js"></script>
 </body>
	<!doctype html>
	<html>
	<head>
	<script src="../../resources/js-test-pre.js"></script>
	</head>
	<body>
	<script>
	description("Test canvas context after draw too small surface.");
	if (window.internals)
	internals.settings.setCanvasUsesAcceleratedDrawing(false);

	var tmpimg = document.createElement('canvas');
	tmpimg.width = 720;
	tmpimg.height = 960;
	ctx = tmpimg.getContext('2d');

	var img = document.createElement('canvas');
	img.width = 300;
	img.height = 233;

	ctx.drawImage(img, 337.208496, 735.022339, 225.473785, 0.005207);
	ctx.fillStyle = '#808080';
	ctx.fillRect(0, 0, 100, 100);
	ctx.fillRect(200, 0, 100, 100);

	debug("Test left box.");
	imgdata = ctx.getImageData(0, 0, 1, 1).data;
	shouldBe("imgdata[0]", "128");
	debug("Test right box.");
	imgdata = ctx.getImageData(200, 0, 1, 1).data;
	shouldBe("imgdata[0]", "128");
	</script>
	<script src="../../resources/js-test-post.js"></script>
	</body>