Make test pass in 1.8.7
Make test pass in 1.8.7

masawada/review,murashitas/review,kuad9/review_study,takahashim/review,orangain/review,orangain/review,kmuto/review,suzuki/review,kmuto/review,krororo/review,takahashim/review,suzuki/review,masawada/review,kuad9/review_study,kmuto/review,murashitas/review,krororo/review,krororo/review