fixed a few tests so they will run on OSX
fixed a few tests so they will run on OSX


Former-commit-id: 6c663bb6e01d467177a23b46bd61bdba6fad0a5c [formerly 37e7cc19ef96223abb8c3ec41f867fb888acea2f] [formerly 37e7cc19ef96223abb8c3ec41f867fb888acea2f [formerly be2885ce25cd70edd7bc81b5c2b90b07c6593dcf]]
Former-commit-id: aec3010177fb6442c67d2303dda576f8225723a7
Former-commit-id: 8211f2910bd75469e0c72c3ec1850f8898dcad66
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine