chromium/third_party/blink/web_tests/animations/interpolation/clip-path-interpolation.html

<!DOCTYPE html>
<meta charset="UTF-8">
<body>
<script src="resources/interpolation-test.js"></script>
<script>
// Regression test for crbug.com/920122.
assertInterpolation({
  property: 'clip-path',
  from: 'inset(20px)',
  to: 'inset(40%)',
}, [
  {at: 3.40282e+38, is: 'inset(calc(3.40282e+38% + -3.40282e+38px))'},
]);

// clip-path <geometry-box> support is not yet implemented in Blink.
// crbug.com/694218

</script>
</body>