Added a missing tearDown
Added a missing tearDown


Former-commit-id: 1c8e4c1bbfe7609c7af40e8008ff7668a1e5c15f [formerly b1d04287c8a5ed803e4b6e0401918c4edbc02d01]
Former-commit-id: 1e9bdd9aa4ae6f7d11ecb91c260d23c926792b1b
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine