Fix spec for edge case
Fix spec for edge case

Co-authored-by: Takeshi Arabiki <bfb7e6a3865acfca8f4aaa9b0aced2e95f3b809e@gmail.com>
joker1007/crono_trigger,joker1007/crono_trigger,joker1007/crono_trigger,joker1007/crono_trigger