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<!DOCTYPE html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi=id=1385905
-->
<html>
<head>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1385905">Mozilla Bug 1385905</a>
<div id="display"></div>
<div id="editor" contenteditable style="padding: 5px;"><div>contents</div></div>
<pre id="test">
</pre>

<script class="testbody" type="application/javascript">
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(() => {
  function ensureNoPaddingBR() {
    for (let br of document.querySelectorAll("#editor > div > br")) {
      ok(!SpecialPowers.wrap(br).isPaddingForEmptyLastLine,
         "padding <br> element shouldn't be used with this test");
    }
  }
  document.execCommand("defaultparagraphseparator", false, "div");
  var editor = document.getElementById("editor");
  // Click the left blank area of the first line to set cursor to the start of "contents".
  synthesizeMouse(editor, 3, 10, {});
  synthesizeKey("KEY_Enter");
  is(editor.innerHTML, "<div><br></div><div>contents</div>",
     "Typing Enter at start of the <div> element should split the <div> element");
  synthesizeKey("KEY_ArrowUp");
  sendString("x");
  is(editor.innerHTML, "<div>x<br></div><div>contents</div>",
     "Typing 'x' at the empty <div> element should just insert 'x' into the <div> element");
  ensureNoPaddingBR();
  synthesizeKey("KEY_Enter");
  is(editor.innerHTML, "<div>x</div><div><br></div><div>contents</div>",
     "Typing Enter next to 'x' in the first <div> element should split the <div> element and inserts <br> element to a new <div> element");
  ensureNoPaddingBR();
  synthesizeKey("KEY_Enter");
  is(editor.innerHTML, "<div>x</div><div><br></div><div><br></div><div>contents</div>",
     "Typing Enter in the empty <div> should split the <div> element and inserts <br> element to a new <div> element");
  ensureNoPaddingBR();
  SimpleTest.finish();
});
</script>
</body>
</html>