gecko/layout/reftests/image-rect/background-monster-rect.html

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HTML

<!DOCTYPE html>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/licenses/publicdomain/
Checks if huge values that overflow when converted to PRInt32 and small
non-zero values do not cause a crash or an unexpected behavior.
-->
<html>
<head>
<title>Testcases: -moz-image-rect() [bug 113577]</title>
<style>
div.wrapper {
width: 32px;
height: 32px;
margin: 10px;
background-color: red;
}
div.wrapper div {
width: 32px;
height: 32px;
}
/* Huge values that exceed PR_INT32_MAX are clamped to PR_INT32_MAX, so
all the tests below should display the entire 32x32 image. */
#test1 {
background-image: -moz-image-rect(url(green-16x16-in-blue-32x32.png), 0, 10000000000, 32, 0);
}
#test2 {
background-image: -moz-image-rect(url(green-16x16-in-blue-32x32.png), 0%, 10000000000%, 100%, 0%);
}
/* Small values (smaller than machine epsilon) are rounded to zero, so
all the tests below should display the entire 32x32 image. */
#test3 {
background-image: -moz-image-rect(url(green-16x16-in-blue-32x32.png), 0.00000000001, 32, 32, 0);
}
#test4 {
background-image: -moz-image-rect(url(green-16x16-in-blue-32x32.png), 0.00000000001%, 100%, 100%, 0%);
}
</style>
</head>
<body>
<div class="wrapper"><div id="test1"></div></div>
<div class="wrapper"><div id="test2"></div></div>
<div class="wrapper"><div id="test3"></div></div>
<div class="wrapper"><div id="test4"></div></div>
</body>
</html>