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<!doctype html>
<html>
<link rel="author" title="Erik Nordin" href="mailto:enordin@mozilla.com">
<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#propdef-border">
<link rel="help" href="https://drafts.csswg.org/cssom-1/#serialize-a-css-declaration-block">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1594241">
<meta charset="utf-8">
<title>serialization of border shorthand</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style id="target">
.a {
border-width: 1px;
border-style: solid;
border-color: black;
}
.b {
border-width: 1px;
border-style: solid;
border-color: black;
border-image: linear-gradient(white,black);
}
.c {
border: 1px solid black;
}
</style>
<script>
test(function() {
let rule = document.getElementById('target').sheet.cssRules[0];
assert_equals(rule.style.border, "", "border shorthand isn't serialized if border-image longhands are not initial");
}, "Declaration with border longhands is not serialized to a border shorthand declaration.");
test(function() {
let rule = document.getElementById('target').sheet.cssRules[1];
assert_equals(rule.style.border, "", "border shorthand isn't serialized if border-image longhands are not initial");
}, "Declaration with border longhands and border-image is not serialized to a border shorthand declaration.");
test(function() {
let rule = document.getElementById('target').sheet.cssRules[2];
assert_not_equals(rule.style.border, "", "border shorthand ");
assert_equals(rule.cssText, ".c { border: 1px solid black; }");
}, "Border shorthand is serialized correctly if all border-image-* are set to their initial specified values.");
</script>
</html>
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