<html><head>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
</head><body><script>
"use strict"

document.designMode = "on";

test(() => {
  document.querySelector("script")?.remove();
  document.head?.remove();
  document.body.firstChild?.remove();
  document.body.appendChild(document.createElement("p"));
  getSelection().collapse(document.querySelector("p"), 0);
  document.querySelector("p").firstChild?.remove();
  document.execCommand("delete");
  assert_in_array(
    document.documentElement?.outerHTML.replace(/\n/g, ""),
    [
      "<html><body></body></html>",
      "<html><body><br></body></html>",
      "<html><body><p></p></body></html>",
      "<html><body><p><br></p></body></html>"
    ],
    "Body element shouldn't be deleted even if it becomes empty"
  );
}, "Delete in empty paragraph shouldn't delete parent body and html elements even if they become empty by Backspace");

test(() => {
  document.querySelector("script")?.remove();
  document.head?.remove();
  document.body.firstChild?.remove();
  document.body.appendChild(document.createElement("p"));
  getSelection().collapse(document.querySelector("p"), 0);
  document.querySelector("p").firstChild?.remove();
  document.execCommand("delete");
  assert_in_array(
    document.documentElement?.outerHTML.replace(/\n/g, ""),
    [
      "<html><body></body></html>",
      "<html><body><br></body></html>",
      "<html><body><p></p></body></html>",
      "<html><body><p><br></p></body></html>"
    ],
    "Body element shouldn't be deleted even if it becomes empty"
  );

  document.designMode = "off";
}, "Delete in empty paragraph shouldn't delete parent body and html elements even if they become empty by Delete");

</script></body></html>