Divide AddAnswerService and UpdateAnswerService

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

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

@@ -0,0 +1,31 @@
+package com.mangkyu.employment.interview.app.answer.service;
+
+import com.mangkyu.employment.interview.app.answer.controller.AddAnswerRequest;
+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.app.quiz.entity.Quiz;
+import com.mangkyu.employment.interview.app.quiz.service.QuizService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+@Transactional
+public class AddAnswerService {
+
+    private final QuizService quizService;
+    private final AnswerRepository answerRepository;
+
+    public void add(final AddAnswerRequest request) {
+        final Quiz quiz = quizService.findQuiz(request.getQuizResourceId());
+        final Answer quizAnswer = quiz.getAnswer();
+        if (quizAnswer == null) {
+            final Answer answer = QuizDtoConverter.convert(request, quiz);
+            answerRepository.save(answer);
+            quiz.setAnswer(answer);
+        }
+    }
+
+}

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

@@ -2,8 +2,6 @@ package com.mangkyu.employment.interview.app.answer.service;
 
 import com.mangkyu.employment.interview.app.answer.controller.AddAnswerRequest;
 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.app.quiz.entity.Quiz;
 import com.mangkyu.employment.interview.app.quiz.service.QuizService;
 import lombok.RequiredArgsConstructor;
@@ -16,16 +14,11 @@ import org.springframework.transaction.annotation.Transactional;
 public class UpdateAnswerService {
 
     private final QuizService quizService;
-    private final AnswerRepository answerRepository;
 
     public void add(final AddAnswerRequest request) {
         final Quiz quiz = quizService.findQuiz(request.getQuizResourceId());
         final Answer quizAnswer = quiz.getAnswer();
-        if (quizAnswer == null) {
-            final Answer answer = QuizDtoConverter.convert(request, quiz);
-            answerRepository.save(answer);
-            quiz.setAnswer(answer);
-        } else {
+        if (quizAnswer != null) {
             quizAnswer.setDescription(request.getDescription());
         }
     }

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

@@ -0,0 +1,51 @@
+package com.mangkyu.employment.interview.app.answer.service;
+
+import com.mangkyu.employment.interview.app.answer.controller.AddAnswerRequest;
+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.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 java.util.UUID;
+
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+class AddAnswerServiceTest {
+
+    @InjectMocks
+    private AddAnswerService answerService;
+
+    @Mock
+    private QuizService quizService;
+    @Mock
+    private AnswerRepository answerRepository;
+
+    @Test
+    void addAnswer_Success_Insert() throws RestApiException {
+        // given
+        final AddAnswerRequest addAnswerRequest = AddAnswerRequest.builder()
+                .quizResourceId(UUID.randomUUID().toString())
+                .description("desc")
+                .build();
+        final Quiz quiz = EntityCreationUtils.quiz();
+
+        doReturn(quiz)
+                .when(quizService)
+                .findQuiz(addAnswerRequest.getQuizResourceId());
+
+        // when
+        answerService.add(addAnswerRequest);
+
+        // then
+        verify(answerRepository, times(1)).save(any(Answer.class));
+    }
+
+}

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

@@ -30,7 +30,7 @@ class UpdateAnswerServiceTest {
     private AnswerRepository answerRepository;
 
     @Test
-    public void addAnswer_Success_Modify() throws RestApiException {
+    void updateAnswer_Success() throws RestApiException {
         // given
         final AddAnswerRequest addAnswerRequest = AddAnswerRequest.builder()
                 .quizResourceId(UUID.randomUUID().toString())
@@ -53,24 +53,4 @@ class UpdateAnswerServiceTest {
         verify(answerRepository, times(0)).save(answer);
     }
 
-    @Test
-    public void addAnswer_Success_Insert() throws RestApiException {
-        // given
-        final AddAnswerRequest addAnswerRequest = AddAnswerRequest.builder()
-                .quizResourceId(UUID.randomUUID().toString())
-                .description("desc")
-                .build();
-        final Quiz quiz = EntityCreationUtils.quiz();
-
-        doReturn(quiz)
-                .when(quizService)
-                .findQuiz(addAnswerRequest.getQuizResourceId());
-
-        // when
-        answerService.add(addAnswerRequest);
-
-        // then
-        verify(answerRepository, times(1)).save(any(Answer.class));
-    }
-
 }