overflow-bug-chrome-ng-001.html | Explore in Territory

<!doctype html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<style>
#container {
  overflow: auto;
  position: relative;
  border: 1px solid black;
  width: 200px;
  height: 100px;
}
#target {
  width: 100px;
  height: 50px;
  position: absolute;
  top: 10px;
  left: 10px;
  background-color: rgba(0, 255, 0, 0.3);
  transform: translateX(7px) translateY(9px)
}
</style>
<p>Overflow, transfrom 2D + absolute</p>
<p>This is LayoutNG-specific failure</p>
<div id="container">
  <div id="target"></div>
</div>
<div id="log"></div>
<script>

var container = document.querySelector('#container');
var target = document.querySelector('#target');

test(function() {
  var targetStyle = window.getComputedStyle(target);
  assert_equals(container.scrollWidth,
    container.clientWidth,
    "width");
  assert_equals(container.scrollHeight,
    container.clientHeight,
    "height");
}, "overflow, 2D transform + absolute, no scrollbars");

test(function() {
  target.style.transform = "translateX(200px) translateY(200px)";
  var targetStyle = window.getComputedStyle(target);
  assert_equals(container.scrollWidth,
    target.offsetWidth + 200 + parseInt(targetStyle.left),
    "width");
  assert_equals(container.scrollHeight,
    target.offsetHeight + 200 + parseInt(targetStyle.top),
    "height");
}, "overflow, 2D transform + absolute, after css change.");

</script>
chromium/third_party/blink/web_tests/overflow/overflow-bug-chrome-ng-001.html
