css/css-grid/animation/grid-template-rows-neutral-keyframe-002.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>grid-template-rows neutral keyframe</title>
    <link rel="help" href="https://drafts.csswg.org/css-grid/#track-sizing">
    <meta name="assert" content="grid-template-rows supports neutral keyframe.">
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="/css/support/interpolation-testcommon.js"></script>
  </head>
  <body>
    <div id="target"></div>
    <script>
      test(() => {
        target.style.gridTemplateRows = '10px minmax(10px, 1fr)';
        var animation = target.animate([{}, {gridTemplateRows: '30px minmax(30px, 3fr)'}], 1000);
        animation.pause();
        animation.currentTime = 500;
        assert_equals(getComputedStyle(target).gridTemplateRows, '20px minmax(20px, 2fr)');
        target.style.gridTemplateRows = '10px fit-content(10px)';
        assert_equals(getComputedStyle(target).gridTemplateRows, '20px minmax(30px, 3fr)');
      }, 'Invalidate the result for the neutral keyframe if the type of <track-size> changes.');
    </script>
  </body>
</html>