reflection-invalidation-after-display.html

<!DOCTYPE html>
<style>
.green {
  background-color: green;
}
.box {
  width: 200px;
  height: 200px;
  position: absolute;
  left: 300px;
}
.reflected {
  -webkit-box-reflect: right 50px;
}
</style>
<!--
    This test checks that we correctly invalidate reflection when they are removed.
    There should be only one green box below.
-->
<div class="green reflected box" id="box"></div>
<script src="../resources/text-based-repaint.js"></script>
<script>
function repaintTest() {
    var box = document.getElementById('box');
    box.classList.toggle('reflected');
}
window.onload = runRepaintAndPixelTest;
</script>

chromium/third_party/blink/web_tests/paint/invalidation/reflection/reflection-invalidation-after-display.html