@Test
    public void testConstructor() throws Exception{
        WelcomeDisplay wDisp = PowerMock.createMock(WelcomeDisplay.class);      //setup Mocks
        PowerMock.expectNew(WelcomeDisplay.class).andReturn(wDisp).anyTimes();
        ParkingNotification pDisp = PowerMock.createMock(ParkingNotification.class);
        PowerMock.expectNew(ParkingNotification.class).andReturn(pDisp).anyTimes();
        SpotNumberDisplay sDisp = PowerMock.createMock(SpotNumberDisplay.class);
        PowerMock.expectNew(SpotNumberDisplay.class).andReturn(sDisp).anyTimes();
        DisplayDirections dDisp = PowerMock.createMock(DisplayDirections.class);
        PowerMock.expectNew(DisplayDirections.class).andReturn(dDisp).anyTimes();
        PowerMock.replay(wDisp, WelcomeDisplay.class, pDisp, ParkingNotification.class, sDisp, SpotNumberDisplay.class, dDisp, DisplayDirections.class);
        
        EntranceDisplayController test = new EntranceDisplayController();
        assertEquals("",test.getCurrentUserID());
        assertEquals(false,test.getDuplicate());
        assertEquals(null,test.getSpot());
        
    }