Add SolvedQuizDtoConverter

src/main/java/com/mangkyu/employment/interview/app/solvedquiz/converter/SolvedQuizDtoConverter.java

@@ -0,0 +1,18 @@
+package com.mangkyu.employment.interview.app.solvedquiz.converter;
+
+import com.mangkyu.employment.interview.app.member.entity.Member;
+import com.mangkyu.employment.interview.app.quiz.entity.Quiz;
+import com.mangkyu.employment.interview.app.solvedquiz.entity.SolvedQuiz;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class SolvedQuizDtoConverter {
+
+    public static SolvedQuiz convert(final Member member, final Quiz quiz) {
+        return SolvedQuiz.builder()
+                .member(member)
+                .quiz(quiz).build();
+    }
+
+}

src/main/java/com/mangkyu/employment/interview/app/solvedquiz/service/SolvedQuizService.java

@@ -2,6 +2,7 @@ package com.mangkyu.employment.interview.app.solvedquiz.service;
 
 import com.mangkyu.employment.interview.app.member.entity.Member;
 import com.mangkyu.employment.interview.app.quiz.entity.Quiz;
+import com.mangkyu.employment.interview.app.solvedquiz.converter.SolvedQuizDtoConverter;
 import com.mangkyu.employment.interview.app.solvedquiz.entity.SolvedQuiz;
 import com.mangkyu.employment.interview.app.solvedquiz.repository.SolvedQuizRepository;
 import lombok.RequiredArgsConstructor;
@@ -22,16 +23,10 @@ public class SolvedQuizService {
     @Transactional
     public void addSolvedQuizList(final Member member, final List<Quiz> quizList) {
         final List<SolvedQuiz> solvedQuizList = quizList.stream()
-                .map(quiz -> createSolvedQuizEntity(member, quiz))
+                .map(quiz -> SolvedQuizDtoConverter.convert(member, quiz))
                 .collect(Collectors.toList());
 
         solvedQuizRepository.saveAll(solvedQuizList);
     }
 
-    private SolvedQuiz createSolvedQuizEntity(final Member member, final Quiz quiz) {
-        return SolvedQuiz.builder()
-                .member(member)
-                .quiz(quiz).build();
-    }
-
 }

src/test/java/com/mangkyu/employment/interview/app/solvedquiz/converter/SolvedQuizDtoConverterTest.java

@@ -0,0 +1,27 @@
+package com.mangkyu.employment.interview.app.solvedquiz.converter;
+
+import com.mangkyu.employment.interview.app.member.entity.Member;
+import com.mangkyu.employment.interview.app.quiz.entity.Quiz;
+import com.mangkyu.employment.interview.app.solvedquiz.entity.SolvedQuiz;
+import com.mangkyu.employment.interview.testutils.EntityCreationUtils;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class SolvedQuizDtoConverterTest {
+
+    @Test
+    public void convertMemberAndQuizToSolvedQuizEntity() {
+        // given
+        final Member member = EntityCreationUtils.member();
+        final Quiz quiz = EntityCreationUtils.quiz();
+
+        // when
+        final SolvedQuiz result = SolvedQuizDtoConverter.convert(member, quiz);
+
+        // then
+        assertThat(result.getMember()).isEqualTo(member);
+        assertThat(result.getQuiz()).isEqualTo(quiz);
+    }
+
+}