chromium/third_party/blink/web_tests/animations/responsive/interpolation/border-image-slice-responsive.html

<!DOCTYPE html>
<script src="resources/responsive-test.js"></script>
<script>
assertCSSResponsive({
  property: 'border-image-slice',
  from: neutralKeyframe,
  to: '110 120%',
  configurations: [{
    state: {underlying: '10 20%'},
    expect: [
      {at: 0.25, is: '35 45%'},
      {at: 0.75, is: '85 95%'},
    ],
  }, {
    state: {underlying: '10 20% fill'},
    expect: [
      {at: 0.25, is: '10 20% fill'},
      {at: 0.75, is: '110 120%'},
    ],
  }, {
    state: {underlying: '10% 20'},
    expect: [
      {at: 0.25, is: '10% 20'},
      {at: 0.75, is: '110 120%'},
    ],
  }],
});

assertCSSResponsive({
  property: 'border-image-slice',
  from: 'inherit',
  to: '110 120% fill',
  configurations: [{
    state: {inherited: '10 20% fill'},
    expect: [
      {at: 0.25, is: '35 45% fill'},
      {at: 0.75, is: '85 95% fill'},
    ],
  }, {
    state: {inherited: '10% 20 fill'},
    expect: [
      {at: 0.25, is: '10% 20 fill'},
      {at: 0.75, is: '110 120% fill'},
    ],
  }, {
    state: {inherited: '10 20%'},
    expect: [
      {at: 0.25, is: '10 20%'},
      {at: 0.75, is: '110 120% fill'},
    ],
  }],
});
</script>