diff --git a/src/test/java/net/javahippie/fitpub/service/ActivitySummaryServiceTest.java b/src/test/java/net/javahippie/fitpub/service/ActivitySummaryServiceTest.java
deleted file mode 100644
index e5296de..0000000
--- a/src/test/java/net/javahippie/fitpub/service/ActivitySummaryServiceTest.java
+++ /dev/null
@@ -1,95 +0,0 @@
-package net.javahippie.fitpub.service;
-
-import net.javahippie.fitpub.model.entity.Activity;
-import net.javahippie.fitpub.model.entity.ActivitySummary;
-import net.javahippie.fitpub.repository.ActivityRepository;
-import net.javahippie.fitpub.repository.ActivitySummaryRepository;
-import net.javahippie.fitpub.repository.AchievementRepository;
-import net.javahippie.fitpub.repository.PersonalRecordRepository;
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.DisplayName;
-import org.junit.jupiter.api.Test;
-import org.springframework.dao.DataIntegrityViolationException;
-
-import java.time.LocalDate;
-import java.time.LocalDateTime;
-import java.util.List;
-import java.util.Optional;
-import java.util.UUID;
-
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-class ActivitySummaryServiceTest {
-
-    private ActivitySummaryRepository activitySummaryRepository;
-    private ActivityRepository activityRepository;
-    private PersonalRecordRepository personalRecordRepository;
-    private AchievementRepository achievementRepository;
-    private ActivitySummaryService service;
-
-    @BeforeEach
-    void setUp() {
-        activitySummaryRepository = mock(ActivitySummaryRepository.class);
-        activityRepository = mock(ActivityRepository.class);
-        personalRecordRepository = mock(PersonalRecordRepository.class);
-        achievementRepository = mock(AchievementRepository.class);
-        service = new ActivitySummaryService(
-                activitySummaryRepository,
-                activityRepository,
-                personalRecordRepository,
-                achievementRepository
-        );
-    }
-
-    @Test
-    @DisplayName("Should retry summary save as update when concurrent insert hits unique constraint")
-    void shouldRetrySummarySaveAfterConcurrentInsert() {
-        UUID userId = UUID.fromString("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
-        LocalDate date = LocalDate.of(2025, 10, 8);
-        LocalDate weekStart = LocalDate.of(2025, 10, 6);
-        LocalDate weekEnd = LocalDate.of(2025, 10, 12);
-
-        ActivitySummary existingSummary = ActivitySummary.builder()
-                .id(UUID.fromString("bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb"))
-                .userId(userId)
-                .periodType(ActivitySummary.PeriodType.WEEK)
-                .periodStart(weekStart)
-                .periodEnd(weekEnd)
-                .build();
-
-        when(activitySummaryRepository.findByUserIdAndPeriodTypeAndPeriodStart(
-                userId, ActivitySummary.PeriodType.WEEK, weekStart
-        )).thenReturn(Optional.empty(), Optional.of(existingSummary));
-
-        when(activityRepository.findByUserIdAndStartedAtBetweenOrderByStartedAtDesc(
-                eq(userId),
-                eq(weekStart.atStartOfDay()),
-                eq(weekEnd.plusDays(1).atStartOfDay())
-        )).thenReturn(List.of(
-                Activity.builder()
-                        .userId(userId)
-                        .activityType(Activity.ActivityType.RIDE)
-                        .startedAt(LocalDateTime.of(2025, 10, 8, 9, 0))
-                        .totalDurationSeconds(3600L)
-                        .build()
-        ));
-
-        when(personalRecordRepository.countByUserIdAndDateRange(any(), any(), any())).thenReturn(0L);
-        when(achievementRepository.countByUserIdAndDateRange(any(), any(), any())).thenReturn(0L);
-
-        when(activitySummaryRepository.save(any(ActivitySummary.class)))
-                .thenThrow(new DataIntegrityViolationException("duplicate"))
-                .thenReturn(existingSummary);
-
-        service.updateWeeklySummary(userId, date);
-
-        verify(activitySummaryRepository, times(2))
-                .findByUserIdAndPeriodTypeAndPeriodStart(userId, ActivitySummary.PeriodType.WEEK, weekStart);
-        verify(activitySummaryRepository, times(2)).save(any(ActivitySummary.class));
-    }
-}