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Add unit tests
설문조사 앱에 유닛 테스트를 추가합니다
Step 1
-
Unit Test란?
- Unit이란?
- A single function or class.
- 최소한의 코드 조각
- Unit Test란
- 개발자가 자신이 구현한 Unit이 생각한대로 작동하는 지 확인하는 행위
- 유닛 테스트를 100% 다 구성하고 코드가 Pass를 하면
- 문제 없음을 확신하며 바로 배포 준비에 들어간다
- 좀 불안. 별도로 추가 테스트가 필요할 것 같다
- 유닛 코드를 짜는 것은 테스트 행위가 아님
- 프로덕트의 테스트는 별도로 필요
- Integration Test
- End to End Test
- Unit이란?
-
그렇다면 Unit Test는 왜 필요한 걸까?
- 굳이 필요 없을 것만 같다
- 어느 정도는 공감을 하는 부분 (개인 취향)
- 하지만 다음과 같은 경우에는 꼭 필요
- Component
- Actions (Action Creator)
- Higher Order Components
- Reducers
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