/** Prepare example objects */
  @Before
  public void createRoom() {

    MockitoAnnotations.initMocks(this);
    room1 = new Room();
    room2 = new Room();
    room3 = new Room();

    room1.setId((long) 1);
    room1.setName("57");
    room1.setNumberOfBeds(3);
    room1.setPrice(new BigDecimal("80.00"));
    room1.setHotel(hotel1);

    room2.setId((long) 2);
    room2.setName("120");
    room2.setNumberOfBeds(1);
    room2.setPrice(new BigDecimal("150.00"));
    room2.setHotel(hotel2);

    room3.setId((long) 3);
    room3.setName("58");
    room3.setNumberOfBeds(3);
    room3.setPrice(new BigDecimal("80.00"));

    hotel1 = new Hotel();
    hotel2 = new Hotel();

    hotel1.setName("Hotel 1");
    hotel1.setAddress("Hotel address 1");

    hotel2.setName("Hotel 2");
    hotel2.setAddress("Hotel address 2");

    Calendar calendar = Calendar.getInstance();
    calendar.add(Calendar.MONTH, 1);
    calendar.set(Calendar.DATE, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));
    nextMonthFirstDay = calendar.getTime();
    calendar.set(Calendar.DATE, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
    nextMonthLastDay = calendar.getTime();

    reservation1 = new Reservation();
    reservation2 = new Reservation();

    reservation1.setStartOfReservation(nextMonthFirstDay);
    reservation1.setEndOfReservation(nextMonthLastDay);
    reservation1.setRoom(room1);

    reservation2.setStartOfReservation(nextMonthFirstDay);
    reservation2.setEndOfReservation(nextMonthLastDay);
    reservation2.setRoom(room2);
  }
  /** Test of changing price of room */
  @Test
  public void changeRoomPriceTest() {

    BigDecimal price = new BigDecimal("99.0");

    doAnswer(
            invocationOnMock -> {
              room1.setPrice(price);
              return null;
            })
        .when(roomDao)
        .update(any(Room.class));
    assertNotEquals(room1.getPrice(), price);
    roomService.changeRoomPrice(room1, price);
    verify(roomDao).update(any(Room.class));
    assertEquals(room1.getPrice(), price);
  }