@Test
public void test22() throws Exception {

    request.setAttribute(ResultMessages.DEFAULT_MESSAGES_ATTRIBUTE_NAME,
            "hello world!");
    tag.setMessagesType("");
    int ret = tag.doStartTag();
    String expected = "<div class=\"alert\"><ul><li>hello world!</li></ul></div>";
    assertThat(getOutput(), is(expected));
    assertThat(ret, is(TagSupport.EVAL_BODY_INCLUDE));
}