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https://thetales.co/2017/10/15/%ec%9d%b4%ec%95%bc%ea%b8%b0-43-%ed%85%8c%ec%8a%a4%ed%8a%b8-%ec%9a%b0%ec%84%a0-%ec%88%9c%ec%9c%84-%ec%a0%95%ed%95%98%ea%b8%b0-you-should-test-that3/
이야기 43. 테스트 우선 순위 정하기 : You Should Test That(3)