File: test_cmd_fontFace_with_empty_string.html

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<!doctype html>
<html>
<head>
<title>Tests typing in empty paragraph after running `cmd_fontFace` with empty string</title>
<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" />
<script>
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(() => {
  document.designMode = "on";
  document.body.innerHTML = "<p><font face=\"monospace\">abc</font><br></p>";
  getSelection().collapse(document.querySelector("font").firstChild, "abc".length);
  document.execCommand("insertParagraph");
  // Calling document.execCommand("fontName", false, "") is NOOP, but HTMLEditor
  // accepts empty string param for cmd_fontFace.
  SpecialPowers.doCommand(window, "cmd_fontFace", "");
  document.execCommand("insertText", false, "d");
  is(
    document.querySelector("p+p").innerHTML,
    "d",
    "The typed text should not be wrapped in <font face=\"monospace\">"
  );
  document.designMode = "off";
  SimpleTest.finish();
});
</script>
</head>
<body></body>
</html>