CLAP-253 test:Usecase 단위 테스트로 변경

Author: Sihun23

src/test/java/clap/server/application/service/admin/CsvParseServiceTest.java

@@ -0,0 +1,125 @@
+package clap.server.application.service.admin;
+
+import clap.server.application.port.inbound.domain.MemberService;
+import clap.server.application.port.outbound.member.CommandMemberPort;
+import clap.server.domain.model.member.Member;
+import clap.server.exception.ApplicationException;
+import clap.server.exception.code.MemberErrorCode;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.springframework.mock.web.MockMultipartFile;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+class RegisterMemberCSVServiceTest {
+
+    private RegisterMemberCSVService registerMemberCSVService;
+    private MemberService memberService;
+    private CommandMemberPort commandMemberPort;
+    private CsvParseService csvParseService;
+
+
+    @BeforeEach
+    void setup() {
+        memberService = Mockito.mock(MemberService.class);
+        commandMemberPort = Mockito.mock(CommandMemberPort.class);
+        csvParseService = Mockito.mock(CsvParseService.class);
+        registerMemberCSVService = new RegisterMemberCSVService(memberService, commandMemberPort, csvParseService);
+    }
+
+    /**
+     *  정상적인 회원 등록 테스트
+     * - 주어진 CSV 파일을 정상적으로 파싱하여 회원이 등록되는지 검증
+     */
+    @Test
+    void testRegisterMembersFromCsvSuccess() {
+        Long adminId = 1L;
+        MultipartFile file = new MockMultipartFile("file", "members.csv", "text/csv", "dummy-content".getBytes());
+
+        Member admin = Mockito.mock(Member.class);
+        List<Member> parsedMembers = List.of(Mockito.mock(Member.class), Mockito.mock(Member.class));
+
+        when(memberService.findActiveMember(adminId)).thenReturn(admin);
+        when(csvParseService.parse(file)).thenReturn(parsedMembers);
+
+        int addedCount = registerMemberCSVService.registerMembersFromCsv(adminId, file);
+
+        assertEquals(2, addedCount);
+        verify(commandMemberPort, times(2)).save(any(Member.class));
+        verify(parsedMembers.get(0), times(1)).register(admin);
+        verify(parsedMembers.get(1), times(1)).register(admin);
+    }
+
+    /**
+     * ❌ 관리자 찾기 실패 (MEMBER_NOT_FOUND)
+     */
+    @Test
+    void testRegisterMembersFromCsvThrowsWhenAdminNotFound() {
+        Long adminId = 99L;
+        MultipartFile file = new MockMultipartFile("file", "members.csv", "text/csv", "dummy-content".getBytes());
+
+        when(memberService.findActiveMember(adminId)).thenThrow(new ApplicationException(MemberErrorCode.MEMBER_NOT_FOUND));
+
+        ApplicationException exception = assertThrows(ApplicationException.class, () -> {
+            registerMemberCSVService.registerMembersFromCsv(adminId, file);
+        });
+
+        // 검증: 발생한 예외가 `MEMBER_NOT_FOUND`인지 확인
+        assertEquals(MemberErrorCode.MEMBER_NOT_FOUND.getCustomCode(), exception.getCode().getCustomCode());
+        verifyNoInteractions(commandMemberPort); // 회원 저장 로직이 실행안됨
+    }
+
+    /**
+     * ❌ CSV 파싱 실패 (CSV_PARSING_ERROR)
+     */
+    @Test
+    void testRegisterMembersFromCsvThrowsWhenCsvParsingFails() {
+        Long adminId = 1L;
+        MultipartFile file = new MockMultipartFile("file", "members.csv", "text/csv", "dummy-content".getBytes());
+
+        // ✅ Mock 객체 설정: CSV 파싱 과정에서 예외 발생하도록 설정
+        when(csvParseService.parse(file)).thenThrow(new ApplicationException(MemberErrorCode.CSV_PARSING_ERROR));
+
+        // 🔹 유스케이스 실행 및 예외 검증
+        ApplicationException exception = assertThrows(ApplicationException.class, () -> {
+            registerMemberCSVService.registerMembersFromCsv(adminId, file);
+        });
+
+        // ✅ 검증: 발생한 예외가 `CSV_PARSING_ERROR`인지 확인
+        assertEquals(MemberErrorCode.CSV_PARSING_ERROR.getCustomCode(), exception.getCode().getCustomCode());
+        verifyNoInteractions(commandMemberPort); // ❗ 회원 저장 로직이 실행되지 않아야 함
+    }
+
+    /**
+     * ❌ 회원 등록 실패 (MEMBER_REGISTRATION_FAILED)
+     *
+     */
+    @Test
+    void testRegisterMembersFromCsvThrowsWhenSavingMemberFails() {
+        Long adminId = 1L;
+        MultipartFile file = new MockMultipartFile("file", "members.csv", "text/csv", "dummy-content".getBytes());
+
+        Member admin = Mockito.mock(Member.class);
+        Member failingMember = Mockito.mock(Member.class);
+        List<Member> parsedMembers = List.of(failingMember, Mockito.mock(Member.class));
+
+        //  특정 회원 등록 중 예외 발생
+        when(memberService.findActiveMember(adminId)).thenReturn(admin);
+        when(csvParseService.parse(file)).thenReturn(parsedMembers);
+        doThrow(new ApplicationException(MemberErrorCode.MEMBER_REGISTRATION_FAILED))
+                .when(commandMemberPort).save(failingMember);
+
+        // Usecase 실행
+        ApplicationException exception = assertThrows(ApplicationException.class, () -> {
+            registerMemberCSVService.registerMembersFromCsv(adminId, file);
+        });
+
+        assertEquals(MemberErrorCode.MEMBER_REGISTRATION_FAILED.getCustomCode(), exception.getCode().getCustomCode());
+        verify(commandMemberPort, times(1)).save(failingMember); // ❗ 실패한 회원만 저장 시도해야 함
+    }
+}