<meta charset="utf-8">

<title>Shorthand serialization should be done correctly.</title>

<link rel="help" href="https://drafts.csswg.org/cssom/#serialize-a-css-declaration-block">

<link rel="help" href="https://drafts.csswg.org/css-variables/#variables-in-shorthands">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div id="foo1" style="background: red;">foo</div>

<div id="foo2" style="background-color: blue; background: red !important; background-color: green;">foo</div>

<div id="foo3" style="background-color: blue; background: red; background-color: green !important;">foo</div>

<div id="foo4" style="margin-right: 10px; margin-left: 10px; margin-top: 10px; margin-bottom: 10px;">foo</div>

<div id="foo5" style="margin-right: 10px; margin-left: 10px; margin-top: 10px; margin-bottom: 10px!important;">foo</div>

<div id="foo6" style="margin-right: 10px !important; margin-left: 10px !important; margin-top: 10px !important; margin-bottom: 10px!important;">foo</div>

<div id="foo7" style="background:var(--a);">foo</div>

<div id="test"></div>

<script>

test(function() {

var elem1 = document.getElementById('foo1');

var elem2 = document.getElementById('foo2');

var elem3 = document.getElementById('foo3');

assert_false(elem1.style.cssText.endsWith('!important;'));

assert_true(elem2.style.cssText.endsWith('!important;'));

assert_false(elem3.style.background.endsWith('!important'));

}, "Shorthand serialization with shorthand and longhands mixed.");

test(function() {

var elem4 = document.getElementById('foo4');

var elem5 = document.getElementById('foo5');

var elem6 = document.getElementById('foo6');

assert_equals(elem4.style.cssText, 'margin: 10px;');

assert_equals(elem4.style.margin, '10px');

assert_equals(elem5.style.cssText, 'margin-right: 10px; margin-left: 10px; margin-top: 10px; margin-bottom: 10px !important;');

assert_equals(elem5.style.margin, '');

assert_equals(elem6.style.cssText, 'margin: 10px !important;');

assert_equals(elem6.style.margin, '10px');

}, "Shorthand serialization with just longhands.");

test(function() {

var elem7 = document.getElementById('foo7');

assert_equals(elem7.style.background, 'var(--a)');

assert_equals(elem7.style.backgroundPosition, '');

}, "Shorthand serialization with variable and variable from other shorthand.");

test(function() {

var testElem = document.getElementById("test");

testElem.style.margin = "20px 20px 20px 20px";

assert_equals(testElem.style.margin, "20px");

assert_equals(testElem.style.cssText, "margin: 20px;")

}, "Shorthand serialization after setting");

test(function() {

const testElem = document.getElementById("test");

testElem.style.cssText = "margin: initial;";

assert_equals(testElem.style.margin, "initial");

assert_equals(testElem.style.cssText, "margin: initial;");

}, "Shorthand serialization with 'initial' value.");

test(function() {

const testElem = document.getElementById("test");

testElem.style.setProperty("margin-top", "initial", "important");

assert_equals(testElem.style.margin, "");

}, "Shorthand serialization with 'initial' value, one longhand with important flag.");

test(function() {

const testElem = document.getElementById("test");

testElem.style.cssText = "";

testElem.style.setProperty("margin-top", "initial");

testElem.style.setProperty("margin-right", "initial");

testElem.style.setProperty("margin-bottom", "initial");

testElem.style.setProperty("margin-left", "initial", "important");

assert_equals(testElem.style.margin, "");

}, "Shorthand serialization with 'initial' value, longhands set individually, one with important flag.");

</script>