[Feat] 선택 문항 응답에 직접 추가 여부 추가

src/main/java/com/jobdri/jobdri_api/domain/analysis/dto/response/QuestionResponse.java

@@ -6,14 +6,16 @@ public record QuestionResponse(
         Long questionId,
         String content,
         int charLimit,
-        String answer
+        String answer,
+        boolean custom
 ) {
-    public static QuestionResponse from(Question question) {
+    public static QuestionResponse from(Question question, boolean custom) {
         return new QuestionResponse(
                 question.getId(),
                 question.getContent(),
                 question.getLimit(),
-                question.getAnswer()
+                question.getAnswer(),
+                custom
         );
     }
 }

src/main/java/com/jobdri/jobdri_api/domain/analysis/service/QuestionService.java

@@ -136,7 +136,7 @@ private CustomQuestionCandidate saveCustomCandidate(
     public QuestionSelectionResponse getSelectedQuestions(User user, Long mockApplyId) {
         MockApply mockApply = getOwnedMockApply(user, mockApplyId);
         List<QuestionResponse> questions = questionRepository.findAllByMockApplyIdOrderByIdAsc(mockApply.getId()).stream()
-                .map(QuestionResponse::from)
+                .map(this::toQuestionResponse)
                 .toList();
 
         return new QuestionSelectionResponse(mockApply.getId(), mockApply.getStatus(), questions);
@@ -169,7 +169,7 @@ public QuestionSelectionResponse saveSelectedQuestions(
         return new QuestionSelectionResponse(
                 mockApply.getId(),
                 mockApply.getStatus(),
-                savedQuestions.stream().map(QuestionResponse::from).toList()
+                savedQuestions.stream().map(this::toQuestionResponse).toList()
         );
     }
 
@@ -200,10 +200,14 @@ public QuestionAnswerResponse saveAnswers(
                 mockApply.getId(),
                 mockApply.getStatus(),
                 mockApplyRepository.calculateSequence(mockApply),
-                questions.stream().map(QuestionResponse::from).toList()
+                questions.stream().map(this::toQuestionResponse).toList()
         );
     }
 
+    private QuestionResponse toQuestionResponse(Question question) {
+        return QuestionResponse.from(question, isCustomQuestion(question.getContent()));
+    }
+
     private MockApply getOwnedMockApply(User user, Long mockApplyId) {
         MockApply mockApply = mockApplyRepository.findById(mockApplyId)
                 .orElseThrow(() -> new GeneralException(
@@ -234,10 +238,13 @@ private int resolveCharLimit(Integer charLimit) {
         return charLimit;
     }
 
+    private boolean isCustomQuestion(String content) {
+        return DEFAULT_CANDIDATES.stream()
+                .noneMatch(candidate -> candidate.content().equals(content));
+    }
+
     private void validateCustomCandidate(String content) {
-        boolean existsInDefault = DEFAULT_CANDIDATES.stream()
-                .anyMatch(candidate -> candidate.content().equals(content));
-        if (existsInDefault) {
+        if (!isCustomQuestion(content)) {
             throw new GeneralException(GeneralErrorCode.INVALID_PARAMETER, "이미 기본 후보에 존재하는 문항입니다.");
         }
     }

src/test/java/com/jobdri/jobdri_api/domain/analysis/service/QuestionServiceTest.java

@@ -37,6 +37,7 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.assertj.core.api.Assertions.tuple;
 
 @SpringBootTest
 @ActiveProfiles("test")
@@ -73,7 +74,7 @@ void saveSelectedQuestions() {
         User user = saveUser("question-save@example.com");
         MockApply mockApply = saveMockApply(user);
         QuestionSelectionSaveRequest request = new QuestionSelectionSaveRequest(List.of(
-                new QuestionSelectionSaveRequest.QuestionItem("지원 동기를 작성해주세요.", 700, false),
+                new QuestionSelectionSaveRequest.QuestionItem("지원 동기와 입사 후 목표를 작성해주세요.", 700, false),
                 new QuestionSelectionSaveRequest.QuestionItem("직접 추가한 문항입니다.", null, true)
         ));
 
@@ -82,10 +83,12 @@ void saveSelectedQuestions() {
         assertThat(response.mockApplyId()).isEqualTo(mockApply.getId());
         assertThat(response.status()).isEqualTo(MockApplyStatus.ANSWER_WRITE);
         assertThat(response.questions()).hasSize(2);
-        assertThat(response.questions().get(0).content()).isEqualTo("지원 동기를 작성해주세요.");
+        assertThat(response.questions().get(0).content()).isEqualTo("지원 동기와 입사 후 목표를 작성해주세요.");
         assertThat(response.questions().get(0).charLimit()).isEqualTo(700);
+        assertThat(response.questions().get(0).custom()).isFalse();
         assertThat(response.questions().get(1).content()).isEqualTo("직접 추가한 문항입니다.");
         assertThat(response.questions().get(1).charLimit()).isEqualTo(1000);
+        assertThat(response.questions().get(1).custom()).isTrue();
         assertThat(mockApply.getStatus()).isEqualTo(MockApplyStatus.ANSWER_WRITE);
         assertThat(questionRepository.findAllByMockApplyId(mockApply.getId())).hasSize(2);
     }
@@ -106,11 +109,33 @@ void saveSelectedQuestionsReplacesExistingQuestions() {
 
         assertThat(response.questions()).hasSize(1);
         assertThat(response.questions().get(0).content()).isEqualTo("새 문항");
+        assertThat(response.questions().get(0).custom()).isTrue();
         assertThat(questionRepository.findAllByMockApplyId(mockApply.getId()))
                 .extracting(Question::getContent)
                 .containsExactly("새 문항");
     }
 
+    @Test
+    @DisplayName("선택 문항 조회 시 직접 추가 여부를 함께 반환한다")
+    void getSelectedQuestionsReturnsCustomFlag() {
+        User user = saveUser("question-selected-custom-flag@example.com");
+        MockApply mockApply = saveMockApply(user);
+        questionService.saveSelectedQuestions(user, mockApply.getId(), new QuestionSelectionSaveRequest(List.of(
+                new QuestionSelectionSaveRequest.QuestionItem("지원 동기와 입사 후 목표를 작성해주세요.", 700, false),
+                new QuestionSelectionSaveRequest.QuestionItem("직접 추가한 문항입니다.", 1000, true)
+        )));
+
+        QuestionSelectionResponse response = questionService.getSelectedQuestions(user, mockApply.getId());
+
+        assertThat(response.questions()).hasSize(2);
+        assertThat(response.questions())
+                .extracting("content", "custom")
+                .containsExactlyInAnyOrder(
+                        tuple("지원 동기와 입사 후 목표를 작성해주세요.", false),
+                        tuple("직접 추가한 문항입니다.", true)
+                );
+    }
+
     @Test
     @DisplayName("직접 추가 문항은 선택 문항으로 저장하지 않고 후보 목록에 추가한다")
     void addCustomQuestionCandidate() {