css/cssom/cssstyledeclaration-csstext.html

<!DOCTYPE html>
<html>
    <head>
        <title>CSSOM Test: CSSStyleDeclaration.cssText Test</title>
        <link rel="author" title="kkoichi" href="mailto:coarse.ground@gmail.com">
        <link rel="reviewer" title="Simon Pieters" href="mailto:simonp@opera.com"><!-- 06-27-2013 -->
        <link rel="help" href="https://drafts.csswg.org/cssom-1/#dom-cssstyledeclaration-csstext">
        <meta name="assert" content="CSS declarations is serialized as expected">
        <meta name="flags" content="dom">
        <script src="/resources/testharness.js"></script>
        <script src="/resources/testharnessreport.js"></script>
    </head>
    <body>
    <div id="log"></div>
    <script>
        function newElm() {
            return document.body.appendChild(document.createElement('div'));
        }

        test(function(){
            var style = newElm().style;
            style.COLOR = 'red';

            assert_equals(style.cssText, '');

        }, 'uppercase property');

        test(function(){
            var style = newElm().style;
            style.color = 'RED';

            // https://www.w3.org/Bugs/Public/show_bug.cgi?id=29317
            assert_any(assert_equals, style.cssText, ['color: red;', 'color: RED;']);

        }, 'uppercase value');

        test(function(){
            var style = newElm().style;

            style.color = 'red';

            style.color = 'unknown color';

            assert_equals(style.cssText, 'color: red;');

        }, 'overwriting with invalid value');

        test(function(){
            var style = newElm().style;
            style.color = 'rgb(255, 0, 0)';

            assert_equals(style.cssText, 'color: rgb(255, 0, 0);');

        }, 'use rgb');

        test(function(){
            var e = newElm();
            var style = e.style;

            style.color = 'red';
            style.fontSize = '10pt';
            style.fontWeight = 'bold';

            assert_equals(style.cssText, 'color: red; font-size: 10pt; font-weight: bold;');

        }, 'cssText order');

        test(function(){
            var e = newElm();
            var style = e.style;

            style.fontWeight = 'bold';
            style.color = 'red';
            style.fontSize = '10pt';

            assert_equals(style.cssText, 'font-weight: bold; color: red; font-size: 10pt;');

        }, 'another cssText order (non-alphabetical order)');

        test(function(){
            var style = newElm().style;

            style.color = '   red';
            style.fontSize = '10pt   ';

            assert_equals(style.cssText, 'color: red; font-size: 10pt;');

        }, 'whitespaces in value');

        test(function(){
            var style = newElm().style;

            style.color = 'red';
            style.unknown = 'unknown';
            style.fontSize = '10pt';
            assert_equals(style.cssText, 'color: red; font-size: 10pt;');

        }, 'invalid property does not appear');

        // https://github.com/w3c/csswg-drafts/issues/1033
        test(function() {
            var elm = newElm();
            var style = elm.style;

            style.color = 'red';
            style.unknown = 'unknown';
            style.fontSize = '10pt';

            assert_not_equals(getComputedStyle(elm).length, 0, "Should have a style");
            assert_equals(getComputedStyle(elm).cssText, "", "cssText is empty");
        }, 'cssText on computed style declaration returns the empty string');
    </script>
    </body>
</html>