테스트

spring-boot-starter-test의존성 추가

(test scope추가)

@SpringBootTest

• @RunWith(SpringRunner.class)와 함께 써야함

• 빈 설정 파일은? 알아서 찾음

• webEnvironment

  • MOCK : mock servlet environment (내장 톰캣 사용 x)

    @RunWith(SpringRunner.class)
    @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.MOCK)
    public class SampleContorllerTest {
        
        @Autowired
        MockMvc mockMvc;
        
        @Test
        public void hello() throws Exception {
            mockMvc.perform(get("/hello"))
                            .andExpect(status().isOk())
                            .andExpect(content().string("hello juho"))
                            .andDo(print());
        }
    

  • RANDOM_PORT, DEFINED_PORT (내장 톰캣 사용 o)

    @RunWith(SpringRunner.class)
    @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
    public class SampleContorllerTest {
        
        @Autowired
        TestRestTemplate testRestTemplate;
        
        @MockBean
        SampleService mockSampleService;
        
        @Test
        public void hello() throws Exception {
            when(mockSampleService.getName()).thenReturn("shinypillar");
        
            String result = testRestTemplate.getForObject("/hello", String.class);
            assertThat(result).isEqualTo("hello shinypillar");
        }
    

    asynchronous하게 처리할 수 있는 WebClient (WebFlux)

    먼저 pom.xml에 WebFlux 의존성 추가해야 함

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-webflux</artifactId>
    </dependency>
    

    @RunWith(SpringRunner.class)
    @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
    public class SampleContorllerTest {
        
        @Autowired
        WebTestClient webTestClient;
        
        @MockBean
        SampleService mockSampleService;
        
        @Test
        public void hello() throws Exception {
            when(mockSampleService.getName()).thenReturn("shinypillar");
        
            webTestClient.get().uri("/hello").exchange()
                    .expectStatus().isOk()
                    .expectBody(String.class).isEqualTo("hello shinypillar");
        }
    

  • NONE : 서블릿 환경 제공 안함

@MockBean

• ApplicationContext에 들어있는 빈을 Mock으로 만든 객체로 교환

• 모든 @Test마다 자동으로 리셋.

슬라이스 테스트

• 레이어 별로 잘라서 테스트

• @JsonTest

• @WebMvcTest

  @RunWith(SpringRunner.class)
  @WebMvcTest(SampleController.class)
  public class SampleContorllerTest {
    
      @MockMvc
      SampleService mockSampleService;
    
      @Autowired
      MockMvc mockMvc;
    
      @Test
      public void hello() throws Exception {
          when(mockSampleService.getName()).thenReturn("shinypillar");
    
          mockMvc.perform(get("/hello"))
                          .andExpect(status().isOk())
                          .andExpect(content().string("hello shinypillar"))
                          .andDo(print());
      }
  

• @WebFluxTest

• @DataJpaTest

등등