LayoutTests/fast/borders/border-radius-cubic-bezier-timing-function-negative-value.html

<style>
  html {
    transition-timing-function: cubic-bezier(1, -100, 1, 1);
  }
  html, div {
    transition-duration: 10ms;
  }
  div {
    border-radius: 1%;
    transition-timing-function: steps(1, jump-start);
  }
</style>
<script>
  onload = () => {
    document.documentElement.style.zoom = '2';
    let div0 = document.createElement('div');
    document.body.appendChild(div0);
    document.body.offsetTop;
    div0.style.borderTopLeftRadius = '1px';
    if (window.testRunner) {
        testRunner.dumpAsText();
    }
  };

</script>
PASS