testPartialBasicRemoveFormatting() {
    const div = document.getElementById('html');
    div.innerHTML = '<b>bold<i>italic</i></b>';

    Range
        .createFromNodes(
            div.firstChild.firstChild, 2, div.firstChild.lastChild.firstChild,
            3)
        .select();

    FORMATTER.removeFormatting_();
    assertHTMLEquals('<b>bo</b>ldita<b><i>lic</i></b>', div.innerHTML);
    FIELDMOCK.$verify();
  }
@bug 1480260
@suppress {visibility} suppression added to enable type checking