[OPR-152]: Adds missing tests in OperationQueue
[OPR-152]: Adds missing tests in OperationQueue

cezarywojcik/Operations,danthorpe/Operations,danthorpe/Operations,cezarywojcik/Operations,blg-andreasbraun/ProcedureKit,blg-andreasbraun/ProcedureKit,cezarywojcik/Operations,ProcedureKit/ProcedureKit,blg-andreasbraun/Operations,ProcedureKit/ProcedureKit,blg-andreasbraun/Operations,blg-andreasbraun/ProcedureKit,danthorpe/Operations,blg-andreasbraun/Operations,ProcedureKit/ProcedureKit