@Test
	public void testSetNumberOfPictures() {
		model.setNumberOfLocations(9);
		assertTrue(model.getNumberOfLocations() != 9);
		model.setNumberOfLocations(-2);
		assertTrue(model.getNumberOfLocations() != -2); 
		model.setNumberOfLocations(1);
		assertTrue(model.getNumberOfLocations() == 1);
	}