@Test
public void testHelp() throws IOException {

    String footer = "------------";
    String divider = "\n";
    helpFormatter.setFooter(footer);
    helpFormatter.setDivider(divider);
    OptionException exception = mock(OptionException.class);
    when(exception.getOption()).thenReturn(mock(Option.class));
    helpFormatter.setException(exception);
    Writer writer = mock(Writer.class);
    helpFormatter.help(writer);
    verify(helpFormatter, times(2)).line(writer, divider);
    verify(exception, times(2)).getOption();
}