<!doctype html>
<meta charset="utf-8">
<title>Test for page up/down in collapsed select (bug 1488828)</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
<style>
.reframe {
  display: flex;
}
</style>
<div id="container">
  <select>
    <option>ABC</option>
    <option>DEF</option>
  </select>
</div>
<script>
(async function() {
  SimpleTest.waitForExplicitFinish();

  const utils = SpecialPowers.DOMWindowUtils;
  const select = document.querySelector("select");
  await SimpleTest.promiseFocus(window);

  ok(!select.openInParentProcess, "Should not be open")

  select.focus();
  synthesizeKey("VK_SPACE");

  ok(SpecialPowers.wrap(select).openInParentProcess, "Should open");

  const container = document.getElementById("container");
  container.getBoundingClientRect(); // flush layout

  const frameCountBeforeReframe = utils.framesConstructed;

  container.classList.add("reframe");

  container.getBoundingClientRect(); // flush layout

  ok(utils.framesConstructed > frameCountBeforeReframe, "Should have reframed");
  ok(SpecialPowers.wrap(select).openInParentProcess, "Should remain open");

  select.remove();

  container.getBoundingClientRect(); // flush layout
  ok(!SpecialPowers.wrap(select).openInParentProcess, "Should close after removal");

  SimpleTest.finish();
}());
</script>