@Test
public void testShowNextButton() {

    presenter.showNextButton();
    verify(view, times(1)).addButton(anyString(), anyString(), anyBoolean(), any(Command.class));
    verify(view, times(0)).add(any(IsWidget.class));
    verify(view, times(0)).init(presenter);
    verify(view, times(0)).clearButtons();
    verify(view, times(0)).clearView();
}