Mockito

Mockito 사용 예시

@Test
@DisplayName("회원 가입")
public void addUser() {
    // given
    UserDto userDto = UserDto.builder()
            .email(email)
            .username(username)
            .password(password)
            .name(name)
            .build();

    when(userRepository.save(any())).thenReturn(user);

    // when
    UserDto saved_user = userService.signUp(userDto);

    // then
    assertThat(saved_user.getUsername()).isEqualTo(userDto.getUsername());
}

 

 

Argument matchers

any()	nulls, varargs를 포함해서 어떤 것이든 매칭
anyBoolean()	Any boolean or non-null Boolean
anyByte()	Any byte or non-null Byte
anyChar()	Any char or non-null Character
anyInt()	Any int or non-null Integer
anyLong()	Any long or non-null Long
anyFloat()	Any float or non-null Float
anyDouble()	Any double or non-null Double
anyShort()	Any short or non-null Short
anyString()	Any non-null String
anyList()	Any non-null List
anySet()	Any non-null Set
anyMap()	Any non-null Map
anyCollection	Any non-null Collection
anyIterable	Any non-null Iterable

 

// 예시
when(mockedList.get(anyInt())).thenReturn("element");

 

 

verify(객체).메소드	메소드 호출 검증 ex) List mockedList = mock(List.class); mockedList.add("one"); verify(mockedList).add("one");

 

 

 

참고👇

https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/ArgumentMatchers.html

ArgumentMatchers - mockito-core 5.1.1 javadoc

 

https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#3

Mockito - mockito-core 5.1.1 javadoc

 

https://minkwon4.tistory.com/181

[JUnit] Mockito를 이용한 단위 테스트