test: 지도 클러스터 API 단위 테스트 추가

Author: dnzp75

src/test/java/com/example/log4u/domain/Map/service/MapServiceTest.java

@@ -0,0 +1,78 @@
+package com.example.log4u.domain.Map.service;
+
+import static org.assertj.core.api.AssertionsForInterfaceTypes.*;
+import static org.mockito.BDDMockito.*;
+
+import java.util.List;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import com.example.log4u.fixture.AreaClusterFixture;
+import com.example.log4u.domain.map.dto.response.DiaryClusterResponseDto;
+import com.example.log4u.domain.map.repository.SidoAreasDiaryCountRepository;
+import com.example.log4u.domain.map.repository.SidoAreasRepository;
+import com.example.log4u.domain.map.repository.SiggAreasDiaryCountRepository;
+import com.example.log4u.domain.map.repository.SiggAreasRepository;
+import com.example.log4u.domain.map.service.MapService;
+
+@DisplayName("지도 API 단위 테스트")
+@ExtendWith(MockitoExtension.class)
+class MapServiceTest {
+
+	@InjectMocks
+	private MapService mapService;
+
+	@Mock
+	private SidoAreasRepository sidoAreasRepository;
+	@Mock
+	private SidoAreasDiaryCountRepository sidoAreasDiaryCountRepository;
+	@Mock
+	private SiggAreasRepository siggAreasRepository;
+	@Mock
+	private SiggAreasDiaryCountRepository siggAreasDiaryCountRepository;
+
+	@DisplayName("성공 테스트: 줌레벨이 10 이하이면 시/도 클러스터 조회")
+	@Test
+	void getDiaryClusters_sidoAreas_success() {
+		// given
+		double south = 37.0, north = 38.0, west = 126.0, east = 127.0;
+		int zoom = 9;
+
+		given(sidoAreasRepository.findSidoAreaClusters(south, north, west, east))
+			.willReturn(AreaClusterFixture.sidoAreaList());
+
+		// when
+		List<DiaryClusterResponseDto> result = mapService.getDiaryClusters(south, north, west, east, zoom);
+
+		// then
+		assertThat(result).hasSize(2);
+		assertThat(result.getFirst().areaName()).isEqualTo("서울특별시");
+		assertThat(result.getFirst().diaryCount()).isEqualTo(100L);
+		verify(sidoAreasRepository).findSidoAreaClusters(south, north, west, east);
+	}
+
+	@DisplayName("성공 테스트: 줌레벨이 11 이상이면 시군구 클러스터 조회")
+	@Test
+	void getDiaryClusters_siggAreas_success() {
+		// given
+		double south = 37.0, north = 38.0, west = 126.0, east = 127.0;
+		int zoom = 12;
+
+		given(siggAreasRepository.findSiggAreaClusters(south, north, west, east))
+			.willReturn(AreaClusterFixture.siggAreaList());
+
+		// when
+		List<DiaryClusterResponseDto> result = mapService.getDiaryClusters(south, north, west, east, zoom);
+
+		// then
+		assertThat(result).hasSize(2);
+		assertThat(result.get(1).areaName()).isEqualTo("송파구");
+		assertThat(result.get(1).diaryCount()).isEqualTo(30L);
+		verify(siggAreasRepository).findSiggAreaClusters(south, north, west, east);
+	}
+}

src/test/java/com/example/log4u/fixture/AreaClusterFixture.java

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+package com.example.log4u.fixture;
+
+
+import java.util.List;
+
+import com.example.log4u.domain.map.dto.response.AreaClusterProjection;
+
+public class AreaClusterFixture {
+
+	public static AreaClusterProjection createSidoArea(Long id, String name, double lat, double lon, long diaryCount) {
+		return new AreaClusterProjectionStub(id, name, lat, lon, diaryCount);
+	}
+
+	public static AreaClusterProjection createSiggArea(Long id, String name, double lat, double lon, long diaryCount) {
+		return new AreaClusterProjectionStub(id, name, lat, lon, diaryCount);
+	}
+
+	public static List<AreaClusterProjection> sidoAreaList() {
+		return List.of(
+			createSidoArea(1L, "서울특별시", 37.5, 126.9, 100L),
+			createSidoArea(2L, "경기도", 37.6, 127.0, 80L)
+		);
+	}
+
+	public static List<AreaClusterProjection> siggAreaList() {
+		return List.of(
+			createSiggArea(11L, "강남구", 37.4, 127.0, 42L),
+			createSiggArea(12L, "송파구", 37.5, 127.1, 30L)
+		);
+	}
+}

src/test/java/com/example/log4u/fixture/AreaClusterProjectionStub.java

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+package com.example.log4u.fixture;
+
+import com.example.log4u.domain.map.dto.response.AreaClusterProjection;
+
+public class AreaClusterProjectionStub implements AreaClusterProjection {
+	private final Long id;
+	private final String name;
+	private final Double lat;
+	private final Double lon;
+	private final Long diaryCount;
+
+	public AreaClusterProjectionStub(Long id, String name, Double lat, Double lon, Long diaryCount) {
+		this.id = id;
+		this.name = name;
+		this.lat = lat;
+		this.lon = lon;
+		this.diaryCount = diaryCount;
+	}
+
+	@Override public Long getId() { return id; }
+	@Override public String getName() { return name; }
+	@Override public Double getLat() { return lat; }
+	@Override public Double getLon() { return lon; }
+	@Override public Long getDiaryCount() { return diaryCount; }
+}
+