@Test
  @Transactional
  public void testRemoveContactFromEventMultipleGroups() throws Exception {

    groupService.create(group);
    groupService.addAggregation(event, group);

    Group secondGroup = new Group();
    secondGroup.setGroupName("Second Group");
    groupService.create(secondGroup);
    groupService.addAggregation(event, secondGroup);

    Contact newContact = new Contact();
    newContact.setFirstName("Fresh Contact");
    newContact.setEmail("Fresh email");
    contactService.create(newContact);

    event = eventService.findById(event.getId());
    contactService.attendEvent(newContact, event);

    newContact = contactService.findById(newContact.getId());
    contactService.unattendEvent(newContact, event);

    event = eventService.findById(event.getId());
    assertFalse(event.getAttendees().contains(newContact));

    newContact = contactService.findById(newContact.getId());
    assertFalse(newContact.getAttendedEvents().contains(event));
  }
  @Before
  public void setup() throws ConstraintViolation, NullDomainReference {

    createContacts();

    committee = new Committee();
    committee.setName("Committee Name");
    committeeService.create(committee);
    contactService.addContactToCommittee(first, committee);
    contactService.addContactToCommittee(second, committee);

    organization = new Organization();
    organization.setName("Organization Name");
    organizationService.create(organization);
    contactService.addContactToOrganization(first, organization);
    contactService.addContactToOrganization(second, organization);

    event = new Event();
    event.setName("Event Name");
    event.setDateHeld("2015-01-01");
    eventService.create(event);
    contactService.attendEvent(first, event);
    contactService.attendEvent(second, event);

    group = new Group();
    group.setGroupName("New AlinskyGroup");
  }
 @After
 public void tearDown() {
   groupService.deleteAll();
   organizationService.deleteAll();
   committeeService.deleteAll();
   eventService.deleteAll();
   contactService.deleteAll();
 }
  @Test
  @Transactional
  public void testAddContactToMultipleGroupsMultipleConstituents() throws Exception {

    groupService.create(group);
    groupService.addAggregation(committee, group);
    groupService.addAggregation(event, group);

    Group secondGroup = new Group();
    secondGroup.setGroupName("Second Group");
    groupService.create(secondGroup);
    groupService.addAggregation(committee, secondGroup);
    groupService.addAggregation(event, secondGroup);

    Contact contact = new Contact();
    contact.setFirstName("Test Contact");
    contact.setEmail("*****@*****.**");
    contactService.create(contact);

    contactService.addContactToCommittee(contact, committee);
    contactService.attendEvent(contact, event);
    contactService.addToGroup(contact, group);
    contactService.addToGroup(contact, secondGroup);

    contact = contactService.findById(contact.getId());
    group = groupService.findById(group.getId());
    secondGroup = groupService.findById(secondGroup.getId());
    event = eventService.findById(event.getId());
    committee = committeeService.findById(committee.getId());

    assertTrue(contact.getGroups().contains(group));
    assertTrue(contact.getGroups().contains(secondGroup));
    assertTrue(contact.getCommittees().contains(committee));
    assertTrue(contact.getAttendedEvents().contains(event));

    assertTrue(event.getAttendees().contains(contact));
    assertTrue(event.getGroups().contains(group));
    assertTrue(event.getGroups().contains(secondGroup));

    assertTrue(committee.getMembers().contains(contact));
    assertTrue(committee.getGroups().contains(group));
    assertTrue(committee.getGroups().contains(secondGroup));

    assertTrue(group.getTopLevelMembers().contains(contact));
    assertTrue(group.getAggregations().contains(committee));
    assertTrue(group.getAggregations().contains(event));

    assertTrue(secondGroup.getTopLevelMembers().contains(contact));
    assertTrue(secondGroup.getAggregations().contains(committee));
    assertTrue(secondGroup.getAggregations().contains(event));
  }
  @Test
  @Transactional
  public void testAddEventMultipleGroups() throws Exception {

    groupService.create(group);
    groupService.addAggregation(event, group);
    groupService.addAggregation(committee, group);

    Group secondGroup = new Group();
    secondGroup.setGroupName("Second Group");
    groupService.create(secondGroup);
    groupService.addAggregation(event, secondGroup);
    groupService.addAggregation(organization, secondGroup);

    event = eventService.findById(event.getId());
    assertTrue(event.getGroups().contains(group));
    assertTrue(event.getGroups().contains(secondGroup));

    group = groupService.findById(group.getId());
    assertTrue(group.getAggregations().contains(event));

    secondGroup = groupService.findById(secondGroup.getId());
    assertTrue(secondGroup.getAggregations().contains(event));
  }