<svg xmlns="http://www.w3.org/2000/svg"
     xmlns:html="http://www.w3.org/1999/xhtml">
  <title>'textLength' on &#x3c;textPath&#x3e; with 'text-anchor' adjustments</title>
  <html:script src="/resources/testharness.js"/>
  <html:script src="/resources/testharnessreport.js"/>
  <html:link rel="stylesheet" href="/fonts/ahem.css"/>
  <html:link rel="help" href="https://w3c.github.io/svgwg/svg2-draft/text.html#TextPathElement"/>
  <html:link rel="help" href="https://w3c.github.io/svgwg/svg2-draft/text.html#TextElementTextLengthAttribute"/>
  <defs>
    <path id="p" d="M0,25h100"/>
  </defs>
  <g font-family="Ahem" font-size="20px">
    <text expected-x="0">
      <textPath href="#p" textLength="25" lengthAdjust="spacing"
                text-anchor="start">XXXX</textPath>
    </text>
    <text expected-x="0" transform="translate(0 50)">
      <textPath href="#p" textLength="25" lengthAdjust="spacingAndGlyphs"
                text-anchor="start">XXXX</textPath>
    </text>

    <text expected-x="37.5">
      <textPath href="#p" textLength="25" lengthAdjust="spacing"
                text-anchor="middle" startOffset="50%">XXXX</textPath>
    </text>
    <text expected-x="37.5" transform="translate(0 50)">
      <textPath href="#p" textLength="25" lengthAdjust="spacingAndGlyphs"
                text-anchor="middle" startOffset="50%">XXXX</textPath>
    </text>

    <text expected-x="75">
      <textPath href="#p" textLength="25" lengthAdjust="spacing"
                text-anchor="end" startOffset="100%">XXXX</textPath>
    </text>
    <text expected-x="75" transform="translate(0 50)">
      <textPath href="#p" textLength="25" lengthAdjust="spacingAndGlyphs"
                text-anchor="end" startOffset="100%">XXXX</textPath>
    </text>
  </g>
  <script>
    test(t => {
      let texts = Array.from(document.getElementsByTagName('text'));
      for (let text of texts) {
        let bbox = text.getBBox();
        let textpath = text.firstElementChild;
        let description = 'text-anchor=' + textpath.getAttribute('text-anchor');
        assert_approx_equals(bbox.x, parseFloat(text.getAttribute('expected-x')), 0.5,
                             'x, ' + description);
        assert_approx_equals(bbox.width, 25, 0.5,
                             'width, ' + description);
      }
    });
  </script>
</svg>