More informative assertions
More informative assertions


Former-commit-id: 5a96d7f4d151a78ebc1165a02966758972408627 [formerly 58b386f8ca877cf73d0296afea4af6b6c90201b5]
Former-commit-id: 5ff8c0b85321d5543cb59252be0d1bc734bbf7fd
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine