Add hierarchy level unit tests
Add hierarchy level unit tests

WouterJ/KnpMenuBundle,Soullivaneuh/KnpMenuBundle,piotrantosik/KnpMenuBundle,craue/MenuBundle,benji07/KnpMenuBundle,Soullivaneuh/KnpMenuBundle,Nek-/KnpMenuBundle,bocharsky-bw/KnpMenuBundle,KnpLabs/KnpMenuBundle,stof/KnpMenuBundle,javiereguiluz/KnpMenuBundle