Divide AnswerService independently

src/main/java/com/mangkyu/employment/interview/app/answer/controller/AddAnswerController.java

@@ -1,6 +1,6 @@
 package com.mangkyu.employment.interview.app.answer.controller;
 
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.UpdateAnswerService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -13,7 +13,7 @@ import javax.validation.Valid;
 @RequiredArgsConstructor
 public class AddAnswerController {
 
-    private final AnswerService answerService;
+    private final UpdateAnswerService answerService;
 
     @PostMapping("/answers")
     public ResponseEntity<Void> postAnswer(@RequestBody @Valid final AddAnswerRequest addAnswerRequest) {

src/main/java/com/mangkyu/employment/interview/app/answer/controller/DeleteAnswerController.java

@@ -1,7 +1,6 @@
 package com.mangkyu.employment.interview.app.answer.controller;
 
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.DeleteAnswerService;
-import com.mangkyu.employment.interview.erros.exception.RestApiException;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.DeleteMapping;
@@ -12,7 +11,7 @@ import org.springframework.web.bind.annotation.RestController;
 @RequiredArgsConstructor
 public class DeleteAnswerController {
 
-    private final AnswerService answerService;
+    private final DeleteAnswerService answerService;
 
     @DeleteMapping("/answers/{resourceId}")
     public ResponseEntity<Void> deleteAnswer(@PathVariable final String resourceId) {

src/main/java/com/mangkyu/employment/interview/app/answer/controller/GetAnswerController.java

@@ -1,6 +1,6 @@
 package com.mangkyu.employment.interview.app.answer.controller;
 
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.GetAnswerService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -11,7 +11,7 @@ import org.springframework.web.bind.annotation.RestController;
 @RequiredArgsConstructor
 public class GetAnswerController {
 
-    private final AnswerService answerService;
+    private final GetAnswerService answerService;
 
     @GetMapping("/answers/{resourceId}")
     public ResponseEntity<GetAnswerResponse> getAnswer(@PathVariable final String resourceId) {

src/main/java/com/mangkyu/employment/interview/app/answer/controller/UpdateAnswerController.java

@@ -1,6 +1,7 @@
 package com.mangkyu.employment.interview.app.answer.controller;
 
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.GetAnswerService;
+import com.mangkyu.employment.interview.app.answer.service.UpdateAnswerService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.PutMapping;
@@ -13,7 +14,7 @@ import javax.validation.Valid;
 @RequiredArgsConstructor
 public class UpdateAnswerController {
 
-    private final AnswerService answerService;
+    private final UpdateAnswerService answerService;
 
     @PutMapping("/answers")
     public ResponseEntity<Void> putAnswer(@RequestBody @Valid final AddAnswerRequest addAnswerRequest) {

src/main/java/com/mangkyu/employment/interview/app/answer/service/DeleteAnswerService.java

@@ -0,0 +1,26 @@
+package com.mangkyu.employment.interview.app.answer.service;
+
+import com.mangkyu.employment.interview.app.answer.entity.Answer;
+import com.mangkyu.employment.interview.app.answer.repository.AnswerRepository;
+import com.mangkyu.employment.interview.app.quiz.service.QuizService;
+import com.mangkyu.employment.interview.erros.errorcode.CommonErrorCode;
+import com.mangkyu.employment.interview.erros.exception.RestApiException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class DeleteAnswerService {
+
+    private final AnswerRepository answerRepository;
+
+    @Transactional
+    public void deleteAnswer(final String resourceId) throws RestApiException {
+        final Answer answer = answerRepository.findByResourceId(resourceId)
+                .orElseThrow(() -> new RestApiException(CommonErrorCode.RESOURCE_NOT_FOUND));
+        answer.getQuiz().setAnswer(null);
+        answerRepository.delete(answer);
+    }
+}

src/main/java/com/mangkyu/employment/interview/app/answer/service/GetAnswerService.java

@@ -0,0 +1,27 @@
+package com.mangkyu.employment.interview.app.answer.service;
+
+import com.mangkyu.employment.interview.app.answer.controller.GetAnswerResponse;
+import com.mangkyu.employment.interview.app.answer.entity.Answer;
+import com.mangkyu.employment.interview.app.answer.repository.AnswerRepository;
+import com.mangkyu.employment.interview.app.quiz.converter.QuizDtoConverter;
+import com.mangkyu.employment.interview.erros.errorcode.CommonErrorCode;
+import com.mangkyu.employment.interview.erros.exception.RestApiException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class GetAnswerService {
+
+    private final AnswerRepository answerRepository;
+
+    public GetAnswerResponse getAnswer(final String resourceId) throws RestApiException {
+        final Answer answer = answerRepository.findByResourceId(resourceId)
+                .orElseThrow(() -> new RestApiException(CommonErrorCode.RESOURCE_NOT_FOUND));
+
+        return QuizDtoConverter.convert(answer);
+    }
+
+}

src/main/java/com/mangkyu/employment/interview/app/answer/service/UpdateAnswerService.java

@@ -1,11 +1,8 @@
 package com.mangkyu.employment.interview.app.answer.service;
 
 import com.mangkyu.employment.interview.app.answer.controller.AddAnswerRequest;
-import com.mangkyu.employment.interview.app.answer.controller.GetAnswerResponse;
 import com.mangkyu.employment.interview.app.answer.entity.Answer;
 import com.mangkyu.employment.interview.app.answer.repository.AnswerRepository;
-import com.mangkyu.employment.interview.erros.errorcode.CommonErrorCode;
-import com.mangkyu.employment.interview.erros.exception.RestApiException;
 import com.mangkyu.employment.interview.app.quiz.converter.QuizDtoConverter;
 import com.mangkyu.employment.interview.app.quiz.entity.Quiz;
 import com.mangkyu.employment.interview.app.quiz.service.QuizService;
@@ -16,20 +13,13 @@ import org.springframework.transaction.annotation.Transactional;
 @Service
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
-public class AnswerService {
+public class UpdateAnswerService {
 
     private final QuizService quizService;
     private final AnswerRepository answerRepository;
 
-    public GetAnswerResponse getAnswer(final String resourceId) throws RestApiException {
-        final Answer answer = answerRepository.findByResourceId(resourceId)
-                .orElseThrow(() -> new RestApiException(CommonErrorCode.RESOURCE_NOT_FOUND));
-
-        return QuizDtoConverter.convert(answer);
-    }
-
     @Transactional
-    public void addAnswer(final AddAnswerRequest addAnswerRequest) throws RestApiException {
+    public void addAnswer(final AddAnswerRequest addAnswerRequest) {
         final Quiz quiz = quizService.findQuiz(addAnswerRequest.getQuizResourceId());
         final Answer quizAnswer = quiz.getAnswer();
         if (quizAnswer == null) {
@@ -41,11 +31,4 @@ public class AnswerService {
         }
     }
 
-    @Transactional
-    public void deleteAnswer(final String resourceId) throws RestApiException {
-        final Answer answer = answerRepository.findByResourceId(resourceId)
-                .orElseThrow(() -> new RestApiException(CommonErrorCode.RESOURCE_NOT_FOUND));
-        answer.getQuiz().setAnswer(null);
-        answerRepository.delete(answer);
-    }
 }

src/main/java/com/mangkyu/employment/interview/app/quiz/controller/WebQuizController.java

@@ -1,7 +1,7 @@
 package com.mangkyu.employment.interview.app.quiz.controller;
 
 import com.mangkyu.employment.interview.app.answer.controller.GetAnswerResponse;
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.GetAnswerService;
 import com.mangkyu.employment.interview.app.quiz.dto.GetQuizResponse;
 import com.mangkyu.employment.interview.app.quiz.service.QuizService;
 import lombok.RequiredArgsConstructor;
@@ -16,7 +16,7 @@ import org.springframework.web.bind.annotation.PathVariable;
 public class WebQuizController {
 
     private final QuizService quizService;
-    private final AnswerService answerService;
+    private final GetAnswerService answerService;
 
     @GetMapping("/quiz/editView/{resourceId}")
     public String addUserPage(@PathVariable final String resourceId, final Model model) {

src/test/java/com/mangkyu/employment/interview/app/answer/controller/AddAnswerControllerTest.java

@@ -1,7 +1,7 @@
 package com.mangkyu.employment.interview.app.answer.controller;
 
 import com.google.gson.Gson;
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.GetAnswerService;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
@@ -25,7 +25,7 @@ class AddAnswerControllerTest {
     private MockMvc mockMvc;
 
     @Autowired
-    private AnswerService answerService;
+    private GetAnswerService answerService;
 
     @ParameterizedTest
     @MethodSource("provideParameters")

src/test/java/com/mangkyu/employment/interview/app/answer/controller/DeleteAnswerControllerTest.java

@@ -1,6 +1,6 @@
 package com.mangkyu.employment.interview.app.answer.controller;
 
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.GetAnswerService;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
@@ -19,7 +19,7 @@ class DeleteAnswerControllerTest {
     private MockMvc mockMvc;
 
     @Autowired
-    private AnswerService answerService;
+    private GetAnswerService answerService;
 
     @Test
     public void deleteAnswerSuccess() throws Exception {

src/test/java/com/mangkyu/employment/interview/app/answer/controller/GetAnswerControllerTest.java

@@ -1,6 +1,6 @@
 package com.mangkyu.employment.interview.app.answer.controller;
 
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.GetAnswerService;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
@@ -21,7 +21,7 @@ class GetAnswerControllerTest {
     private MockMvc mockMvc;
 
     @Autowired
-    private AnswerService answerService;
+    private GetAnswerService answerService;
 
     @Test
     public void getAnswer() throws Exception {

src/test/java/com/mangkyu/employment/interview/app/answer/controller/UpdateAnswerControllerTest.java

@@ -1,7 +1,7 @@
 package com.mangkyu.employment.interview.app.answer.controller;
 
 import com.google.gson.Gson;
-import com.mangkyu.employment.interview.app.answer.service.AnswerService;
+import com.mangkyu.employment.interview.app.answer.service.GetAnswerService;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
@@ -25,7 +25,7 @@ class UpdateAnswerControllerTest {
     private MockMvc mockMvc;
 
     @Autowired
-    private AnswerService answerService;
+    private GetAnswerService answerService;
 
     @ParameterizedTest
     @MethodSource("provideParameters")

src/test/java/com/mangkyu/employment/interview/app/answer/service/DeleteAnswerServiceTest.java

@@ -0,0 +1,63 @@
+package com.mangkyu.employment.interview.app.answer.service;
+
+import com.mangkyu.employment.interview.app.answer.controller.AddAnswerRequest;
+import com.mangkyu.employment.interview.app.answer.controller.GetAnswerResponse;
+import com.mangkyu.employment.interview.app.answer.entity.Answer;
+import com.mangkyu.employment.interview.app.answer.repository.AnswerRepository;
+import com.mangkyu.employment.interview.app.quiz.entity.Quiz;
+import com.mangkyu.employment.interview.app.quiz.service.QuizService;
+import com.mangkyu.employment.interview.erros.errorcode.CommonErrorCode;
+import com.mangkyu.employment.interview.erros.exception.RestApiException;
+import com.mangkyu.employment.interview.testutils.EntityCreationUtils;
+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 org.springframework.test.util.ReflectionTestUtils;
+
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+class DeleteAnswerServiceTest {
+
+    @InjectMocks
+    private DeleteAnswerService answerService;
+    @Mock
+    private AnswerRepository answerRepository;
+
+    @Test
+    public void deleteAnswerByQuizResourceIdFail_AnswerNotExists() {
+        // given
+        final String resourceId = UUID.randomUUID().toString();
+        doReturn(Optional.empty()).when(answerRepository).findByResourceId(resourceId);
+
+        // when
+        final RestApiException result = assertThrows(RestApiException.class, () -> answerService.deleteAnswer(resourceId));
+
+        // then
+        assertThat(result.getErrorCode()).isEqualTo(CommonErrorCode.RESOURCE_NOT_FOUND);
+    }
+
+    @Test
+    public void deleteAnswerByQuizResourceIdSuccess() throws RestApiException {
+        // given
+        final Quiz quiz = EntityCreationUtils.quiz();
+        final Answer answer = EntityCreationUtils.answer(quiz);
+        doReturn(Optional.of(answer)).when(answerRepository).findByResourceId(answer.getResourceId());
+
+        // when
+        answerService.deleteAnswer(answer.getResourceId());
+
+        // then
+
+        // verify
+        verify(answerRepository, times(1)).delete(answer);
+    }
+
+}

src/test/java/com/mangkyu/employment/interview/app/answer/service/GetAnswerServiceTest.java

@@ -0,0 +1,64 @@
+package com.mangkyu.employment.interview.app.answer.service;
+
+import com.mangkyu.employment.interview.app.answer.controller.AddAnswerRequest;
+import com.mangkyu.employment.interview.app.answer.controller.GetAnswerResponse;
+import com.mangkyu.employment.interview.app.answer.entity.Answer;
+import com.mangkyu.employment.interview.app.answer.repository.AnswerRepository;
+import com.mangkyu.employment.interview.erros.errorcode.CommonErrorCode;
+import com.mangkyu.employment.interview.erros.exception.RestApiException;
+import com.mangkyu.employment.interview.app.quiz.entity.Quiz;
+import com.mangkyu.employment.interview.app.quiz.service.QuizService;
+import com.mangkyu.employment.interview.testutils.EntityCreationUtils;
+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 org.springframework.test.util.ReflectionTestUtils;
+
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+class GetAnswerServiceTest {
+
+    @InjectMocks
+    private GetAnswerService answerService;
+
+    @Mock
+    private QuizService quizService;
+    @Mock
+    private AnswerRepository answerRepository;
+
+    @Test
+    public void getAnswerByQuizResourceIdFail_AnswerNotExists() {
+        // given
+        final String resourceId = UUID.randomUUID().toString();
+        doReturn(Optional.empty()).when(answerRepository).findByResourceId(resourceId);
+
+        // when
+        final RestApiException result = assertThrows(RestApiException.class, () -> answerService.getAnswer(resourceId));
+
+        // then
+        assertThat(result.getErrorCode()).isEqualTo(CommonErrorCode.RESOURCE_NOT_FOUND);
+    }
+
+    @Test
+    public void getAnswerByQuizResourceIdSuccess() throws RestApiException {
+        // given
+        final Quiz quiz = EntityCreationUtils.quiz();
+        final Answer answer = EntityCreationUtils.answer(quiz);
+        doReturn(Optional.of(answer)).when(answerRepository).findByResourceId(answer.getResourceId());
+
+        // when
+        final GetAnswerResponse result = answerService.getAnswer(answer.getResourceId());
+
+        // then
+        assertThat(result.getDescription()).isEqualTo(answer.getDescription());
+    }
+
+}

src/test/java/com/mangkyu/employment/interview/app/answer/service/UpdateAnswerServiceTest.java

@@ -1,13 +1,11 @@
 package com.mangkyu.employment.interview.app.answer.service;
 
 import com.mangkyu.employment.interview.app.answer.controller.AddAnswerRequest;
-import com.mangkyu.employment.interview.app.answer.controller.GetAnswerResponse;
 import com.mangkyu.employment.interview.app.answer.entity.Answer;
 import com.mangkyu.employment.interview.app.answer.repository.AnswerRepository;
-import com.mangkyu.employment.interview.erros.errorcode.CommonErrorCode;
-import com.mangkyu.employment.interview.erros.exception.RestApiException;
 import com.mangkyu.employment.interview.app.quiz.entity.Quiz;
 import com.mangkyu.employment.interview.app.quiz.service.QuizService;
+import com.mangkyu.employment.interview.erros.exception.RestApiException;
 import com.mangkyu.employment.interview.testutils.EntityCreationUtils;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
@@ -16,18 +14,15 @@ import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
 import org.springframework.test.util.ReflectionTestUtils;
 
-import java.util.Optional;
 import java.util.UUID;
 
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.mockito.Mockito.*;
 
 @ExtendWith(MockitoExtension.class)
-class AnswerServiceTest {
+class UpdateAnswerServiceTest {
 
     @InjectMocks
-    private AnswerService answerService;
+    private UpdateAnswerService answerService;
 
     @Mock
     private QuizService quizService;
@@ -74,31 +69,4 @@ class AnswerServiceTest {
         verify(answerRepository, times(1)).save(any(Answer.class));
     }
 
-    @Test
-    public void getAnswerByQuizResourceIdFail_AnswerNotExists() {
-        // given
-        final String resourceId = UUID.randomUUID().toString();
-        doReturn(Optional.empty()).when(answerRepository).findByResourceId(resourceId);
-
-        // when
-        final RestApiException result = assertThrows(RestApiException.class, () -> answerService.getAnswer(resourceId));
-
-        // then
-        assertThat(result.getErrorCode()).isEqualTo(CommonErrorCode.RESOURCE_NOT_FOUND);
-    }
-
-    @Test
-    public void getAnswerByQuizResourceIdSuccess() throws RestApiException {
-        // given
-        final Quiz quiz = EntityCreationUtils.quiz();
-        final Answer answer = EntityCreationUtils.answer(quiz);
-        doReturn(Optional.of(answer)).when(answerRepository).findByResourceId(answer.getResourceId());
-
-        // when
-        final GetAnswerResponse result = answerService.getAnswer(answer.getResourceId());
-
-        // then
-        assertThat(result.getDescription()).isEqualTo(answer.getDescription());
-    }
-
 }