fix test names/doc strings
fix test names/doc strings


Former-commit-id: 4a3d97c821af0ba7455c8598934d1983cbf4a4cf [formerly 10c3ef8a2835d10111342561814dc3513f0b375d]
Former-commit-id: 015e18606732928c7fb4761634a7f50f52a5f2ab
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine