public function getIdentifierByObjectUsesUnitOfWorkIdentityWithEmptyFlowPersistenceIdentifier()
{
$entity = (object) ['Persistence_Object_Identifier' => null];
$this->mockEntityManager->expects($this->any())->method('contains')->with($entity)->will($this->returnValue(true));
$this->mockUnitOfWork->expects($this->any())->method('getEntityIdentifier')->with($entity)->will($this->returnValue(['SomeIdentifier']));
$this->assertEquals('SomeIdentifier', $this->persistenceManager->getIdentifierByObject($entity));
}