outline-width-rounding.tentative.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-outline/outline-width-rounding.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

  <title>

    CSS Outline: width rounding

  </title>

  <link rel="author" title="Traian Captan" href="mailto:tcaptan@chromium.org">

  <link rel="help" href="https://www.w3.org/TR/css-ui-4/#outline-width">

  <meta name="assert" content="outline-width computed value after rounding.">

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

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

</head>

<body>

  <h1>

    Test passes if outline widths are rounded up

    when they are greater than 0px and less than 1px,

    and rounded down when they are greater than 1px.

  </h1>

  <script>

    const values = [

      { input: "0px", expected: "0px" },

      { input: "0.1px", expected: "1px" },

      { input: "0.25px", expected: "1px" },

      { input: "0.5px", expected: "1px" },

      { input: "0.9px", expected: "1px" },

      { input: "1px", expected: "1px" },

      { input: "1.25px", expected: "1px" },

      { input: "1.5px", expected: "1px" },

      { input: "2px", expected: "2px" },

      { input: "2.75px", expected: "2px" },

      { input: "2.99px", expected: "2px" },

      { input: "3px", expected: "3px" },

];

    for (const value of values) {

      const div = document.createElement("div");

      div.style = `outline: solid ${value.input} green; margin-bottom: 20px;`;

      document.body.appendChild(div);

    var targets = document.querySelectorAll("div");

    for (var i=0; i < targets.length; ++i) {

      test(() => {

        assert_equals(getComputedStyle(targets[i]).outlineWidth, values[i].expected);

      }, values[i].input);

    </script>

</body>

</html>