/**
  * Updates an object state.
  *
  * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException if the user is not allowed to update an object state
  * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if the object state with provided identifier already exists in the same group
  *
  * @param \eZ\Publish\API\Repository\Values\ObjectState\ObjectState $objectState
  * @param \eZ\Publish\API\Repository\Values\ObjectState\ObjectStateUpdateStruct $objectStateUpdateStruct
  *
  * @return \eZ\Publish\API\Repository\Values\ObjectState\ObjectState
  */
 public function updateObjectState(APIObjectState $objectState, ObjectStateUpdateStruct $objectStateUpdateStruct)
 {
     if ($this->repository->hasAccess('state', 'administrate') !== true) {
         throw new UnauthorizedException('state', 'administrate');
     }
     $loadedObjectState = $this->loadObjectState($objectState->id);
     $inputStruct = $this->buildObjectStateUpdateInputStruct($loadedObjectState, $objectStateUpdateStruct->identifier, $objectStateUpdateStruct->defaultLanguageCode, $objectStateUpdateStruct->names, $objectStateUpdateStruct->descriptions);
     if ($objectStateUpdateStruct->identifier !== null) {
         try {
             $existingObjectState = $this->objectStateHandler->loadByIdentifier($inputStruct->identifier, $loadedObjectState->getObjectStateGroup()->id);
             if ($existingObjectState->id != $loadedObjectState->id) {
                 throw new InvalidArgumentException('objectStateUpdateStruct', 'Object state with provided identifier already exists in provided object state group');
             }
         } catch (APINotFoundException $e) {
             // Do nothing
         }
     }
     $this->repository->beginTransaction();
     try {
         $spiObjectState = $this->objectStateHandler->update($loadedObjectState->id, $inputStruct);
         $this->repository->commit();
     } catch (Exception $e) {
         $this->repository->rollback();
         throw $e;
     }
     return $this->buildDomainObjectStateObject($spiObjectState);
 }
 /**
  * @covers \eZ\Publish\Core\Persistence\InMemory\ObjectStateHandler::loadByIdentifier
  * @expectedException \eZ\Publish\API\Repository\Exceptions\NotFoundException
  */
 public function testLoadByIdentifierThrowsNotFoundException()
 {
     $this->handler->loadByIdentifier('unknown', 2);
 }