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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSSOM: getComputedStyle property order</title>
<link rel="help" href="https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle">
<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
<meta name="assert" content="This test checks that in a computed style, properties are sorted in lexicographical order." />
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
test(function() {
const properties = [...getComputedStyle(document.documentElement)];
const sorted = properties.slice().sort(function(a,b) {
if (a === b) {
assert_unreached("There shouldn't be repeated properties");
return 0;
}
// Sort vendor-prefixed properties after standard ones
if (a.startsWith("-") != b.startsWith("-")) {
return b.startsWith("-") ? -1 : 1;
}
// Sort with lexicographical order
return a < b ? -1 : 1;
});
assert_array_equals(properties, sorted);
}, "Computed style properties should be sorted lexicographically");
</script>
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