Added a serialization test
Added a serialization test


Former-commit-id: 153e63b6fadaae5bb0decf1ee2f36c6ed1df6358 [formerly 1556d752f72581ae5946bcf4639d54eccc1a05a1]
Former-commit-id: 1fcb282706b3e242c8681cb4c02cc659db99c6f5
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine