<!doctype HTML>

<!--
Runs an acquire on a container with no containment, then adds
containment and commits.
-->

<style>
.contained {
  contain: content;
  width: 100px;
  height: 100px;
  background: lightblue;
}
</style>
<div id="log"></div>

<script>
// TODO(vmpstr): In WPT this needs to be replaced with reftest-wait.
if (window.testRunner)
  window.testRunner.waitUntilDone();

function finishTest(status_string) {
  if (document.getElementById("log").innerHTML === "")
    document.getElementById("log").innerHTML = status_string;
  if (window.testRunner)
    window.testRunner.notifyDone();
}

async function runTest() {
  let container = document.createElement("div");
  await container.getDisplayLock().acquire();

  container.classList = "contained";
  document.body.appendChild(container);

  container.getDisplayLock().commit().then(
    () => { finishTest("PASS"); },
    () => { finishTest("FAIL"); });
}

window.onload = runTest;
</script>