### Question:
VehicleAssignmentServiceImpl implements VehicleAssignmentService { @Override public String getAssignedDepotForVehicleId(AgencyAndId vehicle) { return _vehicleIdToDepotMap.get(vehicle); }  @Autowired void setConfigurationService(ConfigurationService configurationService); void setTransitDataManagerApiLibrary(
      TransitDataManagerApiLibrary apiLibrary); synchronized void refreshData(); @PreDestroy void destroy(); @Override ArrayList<AgencyAndId> getAssignedVehicleIdsForDepot(
      String depotId); @Override String getAssignedDepotForVehicleId(AgencyAndId vehicle);  }### Answer:
@Test public void testGetAssignedDepotForVehicleId() throws Exception { String depot = service.getAssignedDepotForVehicleId(new AgencyAndId("MTA", "45")); assertEquals("JG", depot); }