update risk eb unit test
update risk eb unit test


Former-commit-id: 4d754d1e4ddc97de414c1bf044b9931424e30c96 [formerly 4d754d1e4ddc97de414c1bf044b9931424e30c96 [formerly df40afa9cc97d5d7850ceacee0582cf61eb3c7d1]]
Former-commit-id: ace048dcf43f8f3378319f9a56e640412ed3dbf4
Former-commit-id: a60e8a4b31abf9ada3e502693527b1ea812f4d38
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine