### Question:
MachineDAO extends DefaultDAOBase<Integer, Machine> { public boolean existsAnyOtherWithDatacenterAndName(final Machine machine, final String name) { assert machine != null; assert !StringUtils.isEmpty(name); return existsAnyOtherByCriterions(machine, sameDatacenter(machine.getDatacenter()), sameName(name)); } MachineDAO();  MachineDAO(final EntityManager entityManager); List<Machine> findMachines(final Datacenter datacenter); List<Machine> findRackMachines(final Rack rack); List<Machine> findRackMachines(final Rack rack, final String filter); List<Machine> findMachinesWithHAInProgress(); List<Machine> findRackEnabledForHAMachines(final Rack rack); List<Machine> findRackEnabledForHAMachinesInUcs(final UcsRack rack); boolean existsAnyWithDatacenterAndName(final Datacenter datacenter, final String name); boolean existsAnyOtherWithDatacenterAndName(final Machine machine, final String name); int deleteRackMachines(final Rack rack); List<Machine> findCandidateMachines(final Integer idRack,
        final Integer idVirtualDatacenter, final Long hdRequiredOnDatastore,
        final Enterprise enterprise); List<Machine> findCandidateMachines(final Integer idRack,
        final Integer idVirtualDatacenter, final Enterprise enterprise, final String datastoreUuid,
        final Integer originalHypervisorId); List<Machine> findReservedMachines(final Enterprise enterprise); Machine findReservedMachine(final Enterprise enterprise, final Integer machineId); void reserveMachine(final Machine machine, final Enterprise enterprise); void releaseMachine(final Machine machine); Machine findByIds(final Integer datacenterId, final Integer rackId,
        final Integer machineId); Machine findByIp(final Datacenter datacenter, final String ip); Set<Integer> findAllIds(); List<Integer> findAllIdsInDatacenters(final Datacenter... datacenters); Long getTotalUsedCores(); Long getTotalUsedCoresExceptMachine(final Machine machine);  }### Answer:
@Test public void test_existsAnyOtherWithDatacenterAndName() { DatacenterGenerator generator = new DatacenterGenerator(getSeed()); MachineGenerator machineGenerator = new MachineGenerator(getSeed()); Datacenter datacenter1 = generator.createUniqueInstance(); Datacenter datacenter2 = generator.createUniqueInstance(); Machine machine1_1 = machineGenerator.createMachine(datacenter1); machine1_1.setName("Name 1"); Machine machine2_1 = machineGenerator.createMachine(datacenter2); machine2_1.setName("Name 1"); Machine machine2_2 = machineGenerator.createMachine(datacenter2); machine2_2.setName("Name 2"); ds().persistAll(datacenter1, datacenter2, machine1_1, machine2_1, machine2_2); Assert.assertFalse(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine1_1, "Name 1")); Assert.assertFalse(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine1_1, "Name 2")); Assert.assertFalse(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine1_1, "Name 3")); Assert.assertFalse(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine2_1, "Name 1")); Assert.assertTrue(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine2_1, "Name 2")); Assert.assertFalse(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine2_1, "Name 3")); Assert.assertTrue(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine2_2, "Name 1")); Assert.assertFalse(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine2_2, "Name 2")); Assert.assertFalse(createDaoForRollbackTransaction().existsAnyOtherWithDatacenterAndName( machine2_2, "Name 3")); }