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<!DOCTYPE html>
<script src="../../resources/js-test.js"></script>
<style>
#before:before,
#after:after {
content: "";
display: block;
height: 50px;
width: 50px;
top: 50px;
position: relative;
-webkit-transition: width 2s, top 2s;
-moz-transition: width 2s, top 2s;
transition: width 2s, top 2s;
}
#before.transition:before,
#after.transition:after {
top: 200px;
height: 10px;
width: 10px;
}
#before,
#after {
display: inline-block;
border: 1px solid black;
background: red;
}
#after.transition,
#before.transition {
background: green;
}
</style>
<div id="before"></div>
<div id="after"></div>
<script>
description('Transitions on :before and :after pseudo elements should run');
if (window.testRunner)
testRunner.dumpAsText();
function getPseudoComputedTop(id)
{
return Math.round(parseFloat(getComputedStyle(document.getElementById(id), ':' + id).top));
}
// FIXME: This test should be modified so subpixel doesn't cause off by one
// below and it no longer needs shouldBeCloseTo.
function testTransition(id)
{
var div = document.getElementById(id);
div.className = 'transition';
window.div = div;
shouldBe('div.offsetWidth', '52');
if (window.internals) {
internals.pauseAnimations(1);
shouldBeCloseTo('div.offsetWidth', 20, 1);
computedTop = getPseudoComputedTop(id);
shouldBeCloseTo('computedTop', 170, 1);
internals.pauseAnimations(2);
shouldBeCloseTo('div.offsetWidth', 12, 1);
computedTop = getPseudoComputedTop(id);
shouldBeCloseTo('computedTop', 200, 1);
} else {
// This will be flaky, but it's a reasonable approximation for testing
// in a browser instead of DRT.
setTimeout(function() {
window.div = div;
shouldBeCloseTo('div.offsetWidth', 20, 1);
computedTop = getPseudoComputedTop(id);
shouldBeCloseTo('computedTop', 170, 1);
}, 1000);
setTimeout(function() {
window.div = div;
shouldBeCloseTo('div.offsetWidth', 12, 1);
computedTop = getPseudoComputedTop(id);
shouldBeCloseTo('computedTop', 200, 1);
}, 2000);
}
}
onload = function() {
testTransition('before');
testTransition('after');
if (window.internals)
isSuccessfullyParsed();
else
setTimeout(isSuccessfullyParsed, 2000);
};
</script>
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