inserttext-at-end-of-block-when-br-always-block.html

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Typing white-space and another character at end of a block should preserve the white-space when br element is always block</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
br { display: block; }
</style>
<script>
"use strict";

addEventListener("load", () => {
  test(
    () => {
      const editingHost = document.querySelector("div[contenteditable]");
      editingHost.focus();
      getSelection().collapse(editingHost.firstChild, "abc".length);
      document.execCommand("insertText", false, " ");
      document.execCommand("insertText", false, "d");
      assert_in_array(
        editingHost.innerHTML,
        [
          "abc d",
          "abc d<br>",
        ]
      );
    },
    "Inserting white-space and a character at block end should keep the white-space even before block <br> element"
  );
}, {once: true});
</script>
</head>
<body><div contenteditable>abc</div></body>
</html>

chromium/third_party/blink/web_tests/external/wpt/editing/other/inserttext-at-end-of-block-when-br-always-block.html