fixed-under-composited-absolute-scrolled.html

<!DOCTYPE html>
<script src="../resources/text-based-repaint.js"></script>
<script>
function repaintTest() {
  document.getElementById('fixed').style.height = '200px';
}
onload = function() {
  // Scroll before repaint test to test correct scroll offset of invalidation rect
  // for fixed-position element when it needs repaint.
  window.scrollTo(0, 400);
  runRepaintAndPixelTest();
};
</script>
<style>
#indicator {
  position: absolute;
  height: 200px;
  width: 100px;
  top: 400px;
  left: 0;
  background-color: red;
}
#absolute {
  position: absolute;
  top: 2000px;
  width: 1px;
  height: 1px;
  background-color: red;
  backface-visibility: hidden;
  z-index: 1000;
}
#fixed {
  position: fixed;
  top: 0;
  left: 0;
  width: 100px;
  height: 100px; 
  background-color: green;
}
</style>
Tests paint invalidation of fixed element under a composited absolute element on resize after scrolled.
Passes if there is a 100x200 green rectangle and no red.
<div id="indicator"></div>
<div id="absolute">
  <div id="fixed">
  </div>
</div>

chromium/third_party/blink/web_tests/paint/invalidation/scroll/fixed-under-composited-absolute-scrolled.html