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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Transitions: getComputedStyle().transition</title>
<link rel="help" href="https://drafts.csswg.org/css-transitions/#transition-shorthand-property">
<meta name="assert" content="transition computed value is as specified.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/computed-testcommon.js"></script>
</head>
<body>
<div id="target"></div>
<script>
// <single-transition> = [ none | <single-transition-property> ] ||
// <time> || <easing-function> || <time>
test(() => {
assert_equals(getComputedStyle(document.getElementById('target')).transition, "all");
}, "Default transition value");
test_computed_value("transition", "1s");
test_computed_value("transition", "cubic-bezier(0, -2, 1, 3)");
test_computed_value("transition", "1s -3s");
test_computed_value("transition", "none");
test_computed_value("transition", "top");
test_computed_value("transition", "1s -3s cubic-bezier(0, -2, 1, 3) top", "top 1s cubic-bezier(0, -2, 1, 3) -3s");
test_computed_value("transition", "1s -3s, cubic-bezier(0, -2, 1, 3) top", "1s -3s, top cubic-bezier(0, -2, 1, 3)");
test_computed_value("transition", "all, all");
test(() => {
const target = document.getElementById('target');
target.style.transition = "initial";
target.style.transitionDelay = "1s";
assert_equals(getComputedStyle(target).transition, "0s 1s");
}, "Transition with a delay but no duration");
// TODO: Add test with a single timing-function keyword.
</script>
</body>
</html>
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