chromium/third_party/blink/web_tests/editing/inserting/insert_input_element.html

<!doctype html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../assert_selection.js"></script>
<script>
// Inserting <input> should not cause infinite loop.
selection_test(
    '<div contenteditable>abc|</div>',
    'InsertHTML <div><input></div>',
    '<div contenteditable>abc<input>|</div>');
</script>