@Test
public void noPopOverWhenEventNotOverDecisionTableHeader() {

    when(modellerPresenter.getAvailableDecisionTables()).thenReturn(new HashSet<GuidedDecisionTableView.Presenter>() {{
        add(dtPresenter1);
    }});
    when(event.getX()).thenReturn(50);
    when(event.getY()).thenReturn(100);
    when(dtView1.getComputedLocation()).thenReturn(new Point2D(0,
                                                               0));
    handler.onNodeMouseMove(event);
    verify(columnPopOverPresenter,
           never()).show(any(GuidedDecisionTableModellerView.class),
                         any(GuidedDecisionTableView.Presenter.class),
                         any(Integer.class));
}