font-weight-lighter-bolder.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-fonts/variations/font-weight-lighter-bolder.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

    <title>Testing new font-weight lighter/bolder table introduced in CSS Fonts level 4</title>

    <link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-weight-prop" />

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

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

</head>

<body>

    <div id="testcases">

        <div class="testcase" style="font-family: 'CSSTest Weights Full';">

            <span style="font-weight:lighter;color:red;">A</span>A<span style="font-weight:bolder;color:red;">A</span>

            <span style="font: menu; font-size: 10px;">(default)</span>

        </div>

    </div>

    <script>

        testRelativeWeights = [

            { baseWeight: 99,   lighter: "99",  bolder: "400" },

            { baseWeight: 100,  lighter: "100", bolder: "400" },

            { baseWeight: 349,  lighter: "100", bolder: "400" },

            { baseWeight: 350,  lighter: "100", bolder: "700" },

            { baseWeight: 549,  lighter: "100", bolder: "700" },

            { baseWeight: 550,  lighter: "400", bolder: "900" },

            { baseWeight: 749,  lighter: "400", bolder: "900" },

            { baseWeight: 750,  lighter: "700", bolder: "900" },

            { baseWeight: 899,  lighter: "700", bolder: "900" },

            { baseWeight: 900,  lighter: "700", bolder: "900" },

            { baseWeight: 901,  lighter: "700", bolder: "901" },

];

        var testcases = document.getElementById("testcases");

        var testcase_template = testcases.firstElementChild; testcases.removeChild(testcase_template);

        testRelativeWeights.forEach(function(element) {

            var base = testcase_template.cloneNode(true);

            base.children[2].textContent = element.baseWeight;

            base.style.fontWeight = element.baseWeight;

            testcases.appendChild(base);

            test(() => {

                var actualLighter = window.getComputedStyle(base.children[0]).fontWeight;

                assert_equals(actualLighter, element.lighter, "Lighter value for " + element.baseWeight + " should match expected value.");

                base.children[0].style.color = 'green';

            }, "Test lighter font-weight for base weight " + element.baseWeight);

            test(() => {

                var actualBolder = window.getComputedStyle(base.children[1]).fontWeight;

                assert_equals(actualBolder, element.bolder, "Bolder value " + element.baseWeight + " should match expected value.");

                base.children[1].style.color = 'green';

            }, "Test bolder font-weight for base weight " + element.baseWeight);

});

    </script>

</body>

</html>