[EA3-162] feature: 출석 체크, 조회 테스트 작성

Author: pia01190

src/test/java/grep/neogul_coder/domain/attendance/service/AttendanceServiceTest.java

@@ -0,0 +1,120 @@
+package grep.neogul_coder.domain.attendance.service;
+
+import grep.neogul_coder.domain.IntegrationTestSupport;
+import grep.neogul_coder.domain.attendance.Attendance;
+import grep.neogul_coder.domain.attendance.controller.dto.response.AttendanceInfoResponse;
+import grep.neogul_coder.domain.attendance.repository.AttendanceRepository;
+import grep.neogul_coder.domain.study.Study;
+import grep.neogul_coder.domain.study.StudyMember;
+import grep.neogul_coder.domain.study.repository.StudyMemberRepository;
+import grep.neogul_coder.domain.study.repository.StudyRepository;
+import grep.neogul_coder.domain.users.entity.User;
+import grep.neogul_coder.domain.users.repository.UserRepository;
+import grep.neogul_coder.global.exception.business.BusinessException;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+
+import static grep.neogul_coder.domain.attendance.exception.code.AttendanceErrorCode.ATTENDANCE_ALREADY_CHECKED;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+class AttendanceServiceTest extends IntegrationTestSupport {
+
+    @Autowired
+    private UserRepository userRepository;
+
+    @Autowired
+    private StudyRepository studyRepository;
+
+    @Autowired
+    private StudyMemberRepository studyMemberRepository;
+
+    @Autowired
+    private AttendanceService attendanceService;
+
+    @Autowired
+    private AttendanceRepository attendanceRepository;
+
+    private Long userId;
+    private Long studyId;
+
+    @BeforeEach
+    void init() {
+        User user = createUser("test1");
+        userRepository.save(user);
+        userId = user.getId();
+
+        Study study = createStudy("스터디", LocalDateTime.parse("2025-07-25T20:20:20"), LocalDateTime.parse("2025-07-28T20:20:20"));
+        studyRepository.save(study);
+        studyId = study.getId();
+
+        StudyMember studyMember = createStudyMember(study, userId);
+        studyMemberRepository.save(studyMember);
+    }
+
+    @DisplayName("출석을 조회합니다.")
+    @Test
+    void getAttendances() {
+        // given
+        Attendance attendance = Attendance.create(studyId, userId);
+        attendanceRepository.save(attendance);
+
+        // when
+        AttendanceInfoResponse response = attendanceService.getAttendances(studyId, userId);
+
+        // then
+        assertThat(response.getAttendances().getFirst().getStudyId()).isEqualTo(studyId);
+    }
+
+    @DisplayName("스터디에 출석 체크를 합니다.")
+    @Test
+    void createAttendance() {
+        // given
+        Attendance attendance = Attendance.create(studyId, userId);
+
+        // when
+        attendanceRepository.save(attendance);
+
+        // then
+        assertThat(attendance.getAttendanceDate().toLocalDate()).isEqualTo(LocalDate.now());
+    }
+
+    @DisplayName("스터디에 이미 출석한 경우 예외가 발생합니다.")
+    @Test
+    void createAttendanceFail() {
+        // given
+        Attendance attendance = Attendance.create(studyId, userId);
+        attendanceRepository.save(attendance);
+
+        // when then
+        assertThatThrownBy(() ->
+            attendanceService.createAttendance(studyId, userId))
+            .isInstanceOf(BusinessException.class).hasMessage(ATTENDANCE_ALREADY_CHECKED.getMessage());
+    }
+
+    private static User createUser(String nickname) {
+        return User.builder()
+            .nickname(nickname)
+            .build();
+    }
+
+    private static Study createStudy(String name, LocalDateTime startDate, LocalDateTime endDate) {
+        return Study.builder()
+            .name(name)
+            .startDate(startDate)
+            .endDate(endDate)
+            .build();
+    }
+
+    private StudyMember createStudyMember(Study study, long userId) {
+        return StudyMember.builder()
+            .study(study)
+            .userId(userId)
+            .build();
+    }
+}