unicode-bidi-ua-rules.html

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This test has a WPT meta file that expects 85 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/rendering/bidi-rendering/unicode-bidi-ua-rules.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>unicode-bidi UA stylesheet rules</title>

<link rel="author" href="masonf@chromium.org">

<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#bidi-rendering">

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

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

<script src='../../resources/common.js'></script>

<body>

<script>

  function getUnicodeBidi(el) {

    return window.getComputedStyle(el, "").unicodeBidi;

  // These elements should have `unicode-bidi: isolate` in the UA stylesheet:

  const isolateElements = ['address', 'blockquote', 'center', 'div', 'figure',

      'figcaption', 'footer', 'form', 'header', 'hr', 'legend', 'listing',

      'main', 'p', 'plaintext', 'pre', 'summary', 'xmp', 'article', 'aside',

      'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'hgroup', 'nav', 'section', 'search',

      'table', 'caption', 'colgroup', 'col', 'thead', 'tbody', 'tfoot', 'tr',

      'td', 'th', 'dir', 'dd', 'dl', 'dt', 'menu', 'ol', 'ul', 'li', 'bdi',

      'output'];

  const allButSeparateTests = HTML5_ELEMENTS.filter(el => (!['bdo','input','textarea','pre'].includes(el)));

  for(let tagname of allButSeparateTests) {

    test((t) => {

      const element = document.createElement(tagname);

      t.add_cleanup(() => element.remove());

      document.body.appendChild(element);

      const expectation = isolateElements.includes(tagname) ? 'isolate' : 'normal';

      assert_equals(getUnicodeBidi(element),expectation);

      element.setAttribute('dir','ltr');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=ltr');

      element.setAttribute('dir','LtR');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=LtR (case insensitive)');

      element.setAttribute('dir','rtl');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=rtl');

      element.setAttribute('dir','auto');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=auto');

      element.setAttribute('dir','INVALID');

      assert_equals(getUnicodeBidi(element),expectation,'invalid dir value goes back to normal defaults');

    },`UA stylesheet rule for unicode-bidi, for <${tagname}>`);

  test((t) => {

    const element = document.createElement('bdo');

    t.add_cleanup(() => element.remove());

    document.body.appendChild(element);

    assert_equals(getUnicodeBidi(element),'isolate-override');

    element.setAttribute('dir','ltr');

    assert_equals(getUnicodeBidi(element),'isolate-override','with dir=ltr');

    element.setAttribute('dir','LtR');

    assert_equals(getUnicodeBidi(element),'isolate-override','with dir=LtR (case insensitive)');

    element.setAttribute('dir','rtl');

    assert_equals(getUnicodeBidi(element),'isolate-override','with dir=rtl');

    element.setAttribute('dir','auto');

    assert_equals(getUnicodeBidi(element),'isolate-override','with dir=auto');

    element.setAttribute('dir','INVALID');

    assert_equals(getUnicodeBidi(element),'isolate-override','invalid dir value');

  },`UA stylesheet rule for unicode-bidi, for <bdo>`);

  const shouldBePlaintext = ['search','tel','url','email'];

  for(let type of HTML5_INPUT_TYPES) {

    test((t) => {

      const element = document.createElement('input');

      t.add_cleanup(() => element.remove());

      element.type = type;

      document.body.appendChild(element);

      const autoExpectation = shouldBePlaintext.includes(type) ? 'plaintext' : 'isolate';

      assert_equals(getUnicodeBidi(element),'normal');

      element.setAttribute('dir','ltr');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=ltr');

      element.setAttribute('dir','LtR');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=LtR (case insensitive)');

      element.setAttribute('dir','rtl');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=rtl');

      element.setAttribute('dir','auto');

      assert_equals(getUnicodeBidi(element),autoExpectation,'with dir=auto');

      element.setAttribute('dir','AuTo');

      assert_equals(getUnicodeBidi(element),autoExpectation,'with dir=auto (case insensitive)');

      element.setAttribute('dir','INVALID');

      assert_equals(getUnicodeBidi(element),'normal','invalid dir value');

    },`UA stylesheet rule for unicode-bidi, for <input type=${type}>`);

  for(let tagname of ['textarea','pre']) {

    test((t) => {

      const element = document.createElement(tagname);

      t.add_cleanup(() => element.remove());

      document.body.appendChild(element);

      const expectation = tagname === 'textarea' ? 'normal' : 'isolate';

      assert_equals(getUnicodeBidi(element),expectation);

      element.setAttribute('dir','ltr');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=ltr');

      element.setAttribute('dir','LtR');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=LtR (case insensitive)');

      element.setAttribute('dir','rtl');

      assert_equals(getUnicodeBidi(element),'isolate','with dir=rtl');

      element.setAttribute('dir','auto');

      assert_equals(getUnicodeBidi(element),'plaintext','with dir=auto');

      element.setAttribute('dir','AuTo');

      assert_equals(getUnicodeBidi(element),'plaintext','with dir=auto (case insensitive)');

      element.setAttribute('dir','INVALID');

      assert_equals(getUnicodeBidi(element),expectation,'invalid dir value');

    },`UA stylesheet rule for unicode-bidi, for <${tagname}>`);

</script>