* @param a The associated {@link Account}
* @param persist
*/
private AccountInterface stubAccountInterface(Interface intf, Account a, boolean persist) {
final IEntityFactory efactory = injector.getInstance(IEntityFactory.class);
final AccountInterface ai = efactory.createEntity(AccountInterface.class, false);
ai.setAccountId(a.getId());
ai.setInterfaceId(intf.getId());
for(final InterfaceOption io : intf.getOptions()) {
final AccountInterfaceOption aio = efactory.createEntity(AccountInterfaceOption.class, false);
aio.setId(io.getId());