M3-238 Feat : version test작성, exception추가

src/main/java/com/m3pro/groundflip/exception/ErrorCode.java

@@ -15,6 +15,7 @@ public enum ErrorCode {
 	IMAGE_NOT_FOUND(HttpStatus.NOT_FOUND, "존재하지 않는 이미지입니다."),
 	PLACE_NOT_FOUND(HttpStatus.NOT_FOUND, "장소가 등록되어 있지 않습니다."),
 	INTERNAL_SERVER_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, "서버 에러 입니다"),
+	VERSION_NOT_FOUND(HttpStatus.NOT_FOUND, "버전이 존재하지 않습니다."),
 
 	// 권한 관련 에러
 	UNAUTHORIZED(HttpStatus.UNAUTHORIZED, "권한이 없습니다"),

src/main/java/com/m3pro/groundflip/repository/AppVersionRepository.java

@@ -1,5 +1,7 @@
 package com.m3pro.groundflip.repository;
 
+import java.util.Optional;
+
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.CrudRepository;
 
@@ -13,5 +15,5 @@ public interface AppVersionRepository extends CrudRepository<AppVersion, Long> {
 		ORDER BY av.created_date DESC 
 		limit 1
 		""", nativeQuery = true)
-	AppVersion findLaestetVersion();
+	Optional<AppVersion> findLaestetVersion();
 }

src/main/java/com/m3pro/groundflip/service/VersionService.java

@@ -5,6 +5,8 @@
 import com.m3pro.groundflip.domain.dto.version.VersionRequest;
 import com.m3pro.groundflip.domain.dto.version.VersionResponse;
 import com.m3pro.groundflip.domain.entity.AppVersion;
+import com.m3pro.groundflip.exception.AppException;
+import com.m3pro.groundflip.exception.ErrorCode;
 import com.m3pro.groundflip.repository.AppVersionRepository;
 
 import jakarta.transaction.Transactional;
@@ -25,7 +27,8 @@ public void postVersion(VersionRequest versionRequest) {
 	}
 
 	public VersionResponse getVersion() {
-		AppVersion appVersion = appVersionRepository.findLaestetVersion();
+		AppVersion appVersion = appVersionRepository.findLaestetVersion()
+			.orElseThrow(() -> new AppException(ErrorCode.VERSION_NOT_FOUND));
 
 		return VersionResponse.builder()
 			.version(appVersion.getVersion())

src/test/java/com/m3pro/groundflip/service/VersionServiceTest.java

@@ -0,0 +1,81 @@
+package com.m3pro.groundflip.service;
+
+import static org.assertj.core.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+import java.time.LocalDateTime;
+import java.util.Optional;
+
+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.m3pro.groundflip.domain.dto.version.VersionRequest;
+import com.m3pro.groundflip.domain.dto.version.VersionResponse;
+import com.m3pro.groundflip.domain.entity.AppVersion;
+import com.m3pro.groundflip.exception.AppException;
+import com.m3pro.groundflip.exception.ErrorCode;
+import com.m3pro.groundflip.repository.AppVersionRepository;
+
+@ExtendWith(MockitoExtension.class)
+public class VersionServiceTest {
+	@Mock
+	private AppVersionRepository appVersionRepository;
+
+	@InjectMocks
+	private VersionService versionService;
+
+	@Test
+	@DisplayName("[postVersion] version이 잘 post 되는지")
+	void postVersionTest() {
+		//Given
+		LocalDateTime localDate = LocalDateTime.now();
+
+		VersionRequest versionRequest = VersionRequest.builder().version("1.0.3").build();
+		//When
+		versionService.postVersion(versionRequest);
+
+		//Then
+		verify(appVersionRepository, times(1)).save(any(AppVersion.class));
+	}
+
+	@Test
+	@DisplayName("[getVersion] version이 잘 get 되는지")
+	void getVersionTest() {
+		//Given
+		LocalDateTime localDate = LocalDateTime.now();
+		AppVersion appVersion = AppVersion.builder()
+			.version("1.0.3")
+			.createdDate(localDate)
+			.build();
+
+		when(appVersionRepository.findLaestetVersion()).thenReturn(Optional.of(appVersion));
+
+		//When
+		VersionResponse versionResponse = versionService.getVersion();
+
+		//Then
+		assertThat(versionResponse).isNotNull();
+		assertThat(versionResponse.getVersion()).isEqualTo("1.0.3");
+		assertThat(versionResponse.getCreatedDate()).isEqualTo(localDate);
+
+	}
+
+	@Test
+	@DisplayName("[getVersion] version이 없을때 예외가 잘 나오는지")
+	void getVersionExceptionTest() {
+		//When
+		when(appVersionRepository.findLaestetVersion()).thenReturn(Optional.empty());
+
+		AppException thrown = assertThrows(AppException.class, () -> {
+			versionService.getVersion();
+		});
+
+		assertEquals(thrown.getErrorCode(), ErrorCode.VERSION_NOT_FOUND);
+	}
+
+}