패스트캠퍼스 챌린지 33일차

Part 1. Spring Framework

 Ch 05. 예외처리

  02. Junit, Mockito 설명

  - Junit

  -- 자바의 unit test를 위한 Framework

package com.fastcampus.programmin.dmaker.service;

import com.fastcampus.programmin.dmaker.dto.CreateDeveloper;
import com.fastcampus.programmin.dmaker.dto.DeveloperDto;
import com.fastcampus.programmin.dmaker.type.DeveloperLevel;
import com.fastcampus.programmin.dmaker.type.DeveloperSkillType;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

import java.util.List;

@SpringBootTest // application을 test할 때도 실제 환경과 동일하게 실행한다.
class dMakerServiceTest_Junit {

    @Autowired // dMakerService를 injection
    private dMakerService dMakerService;

    @Test
    public void testSomething() {
        dMakerService.createDeveloper(CreateDeveloper.Request.builder()
                .developerLevel(DeveloperLevel.SENIOR)
                .developerSkillType(DeveloperSkillType.FRONT_END)
                .experienceYears(12)
                .memberId("memberId")
                .name("name")
                .age(32)
                .build());

        List<DeveloperDto> allEmployedDevelopers = dMakerService.getAllEmployedDevelopers();
        System.out.println("====================");
        System.out.println(allEmployedDevelopers);
        System.out.println("====================");
    }
}

<dMakerServiceTest_Junit.java>

 

  - Mockito

   -- db에 데이터 없이, 격리성을 높이며 테스트하는 방법 : Mocking
   -- Mockito는 Spring에 기본 내장되어 있어 쉽게 사용 가능

package com.fastcampus.programmin.dmaker.service;

import com.fastcampus.programmin.dmaker.Repository.DeveloperRepository;
import com.fastcampus.programmin.dmaker.Repository.RetiredDeveloperRepository;
import com.fastcampus.programmin.dmaker.code.StatusCode;
import com.fastcampus.programmin.dmaker.dto.CreateDeveloper;
import com.fastcampus.programmin.dmaker.dto.DeveloperDetailDto;
import com.fastcampus.programmin.dmaker.dto.DeveloperDto;
import com.fastcampus.programmin.dmaker.entity.Developer;
import com.fastcampus.programmin.dmaker.type.DeveloperLevel;
import com.fastcampus.programmin.dmaker.type.DeveloperSkillType;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

import java.util.List;
import java.util.Optional;

import static com.fastcampus.programmin.dmaker.type.DeveloperLevel.SENIOR;
import static com.fastcampus.programmin.dmaker.type.DeveloperSkillType.FRONT_END;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.BDDMockito.given;

@ExtendWith(MockitoExtension.class)
class dMakerServiceTest_Mockito {
    //db에 데이터 없이, 격리성을 높이며 테스트하는 방법 : Mocking
    //Mockito는 Spring에 기본 내장되어 있어 쉽게 사용 가능
    @Mock
    private DeveloperRepository developerRepository;

    @Mock
    private RetiredDeveloperRepository retiredDeveloperRepository;

    @InjectMocks //Mock = 가짜, 가짜를 dMakerService에 주입한다는 뜻
    // 위쪽의 2개의 Mock을 자동으로 주입
    private dMakerService dMakerService;

    @Test
    public void testSomething() {
        given(developerRepository.findByMemberId(anyString()))
                .willReturn(Optional.of(Developer.builder()
                        .developerLevel(SENIOR)
                        .developerSkillType(FRONT_END)
                        .experienceYears(12)
                        .statusCode(StatusCode.EMPLOYED)
                        .name("name")
                        .age(12)
                        .build()));

        DeveloperDetailDto developerDetail = dMakerService.getAllDeveloperDetail("memberId");

        assertEquals(SENIOR, developerDetail.getDeveloperLevel());
        assertEquals(FRONT_END, developerDetail.getDeveloperSkillType());
        assertEquals(12, developerDetail.getExperienceYears());
    }
}

<dMakerServiceTest_Mockito.java>

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