fix: timetableLecture 오류 수정

src/main/java/in/koreatech/koin/domain/timetableV2/dto/response/TimetableLectureResponse.java

@@ -15,7 +15,6 @@
 import in.koreatech.koin.domain.timetableV2.model.TimetableFrame;
 import in.koreatech.koin.domain.timetableV2.model.TimetableLecture;
 import io.swagger.v3.oas.annotations.media.Schema;
-import jakarta.validation.constraints.Size;
 
 @JsonNaming(value = SnakeCaseStrategy.class)
 public record TimetableLectureResponse(
@@ -83,7 +82,25 @@ public record ClassInfo(
             public static List<ClassInfo> of(String classTime, String classPlace) {
                 // 정규 강의인 경우 강의 장소가 없기 때문에 바로 반환
                 if (classPlace == null) {
-                    return List.of(new ClassInfo(parseClassTimes(classTime), null));
+                    String[] split = classTime.substring(1, classTime.length() - 1).trim().split(",\\s*");
+
+                    List<ClassInfo> classInfos = new ArrayList<>();
+                    List<Integer> currentTimes = new ArrayList<>();
+
+                    for (String str : split) {
+                        int num = Integer.parseInt(str);
+                        if (!currentTimes.isEmpty() && currentTimes.get(currentTimes.size() - 1) + 1 != num) {
+                            classInfos.add(new ClassInfo(new ArrayList<>(currentTimes), null));
+                            currentTimes.clear();
+                        }
+                        currentTimes.add(num);
+                    }
+
+                    if (!currentTimes.isEmpty()) {
+                        classInfos.add(new ClassInfo(new ArrayList<>(currentTimes), null));
+                    }
+
+                    return classInfos;
                 }
 
                 // 구분자를 바탕으로 강의 시간과 강의 장소 분리
@@ -98,11 +115,15 @@ public static List<ClassInfo> of(String classTime, String classPlace) {
                     int parseInt = Integer.parseInt(segment);
                     if (parseInt == -1) {
                         if (!currentTimes.isEmpty()) {
-                            classInfos.add(new ClassInfo(new ArrayList<>(currentTimes), classPlaceSegment[index++]));
+                            if (classPlaceSegment.length <= index + 1) {
+                                classInfos.add(new ClassInfo(new ArrayList<>(currentTimes), ""));
+                            } else {
+                                classInfos.add(
+                                    new ClassInfo(new ArrayList<>(currentTimes), classPlaceSegment[index++]));
+                            }
                             currentTimes.clear();
                         }
-                    }
-                    else {
+                    } else {
                         currentTimes.add(parseInt);
                     }
                 }
@@ -113,16 +134,6 @@ public static List<ClassInfo> of(String classTime, String classPlace) {
 
                 return classInfos;
             }
-
-            private static List<Integer> parseClassTimes(String classTime) {
-                if (classTime == null) return null;
-
-                String classTimeWithoutBrackets = classTime.substring(INITIAL_BRACE_INDEX, classTime.length() - 1);
-                return Arrays.stream(classTimeWithoutBrackets.split(SEPARATOR))
-                    .map(String::strip)
-                    .map(Integer::parseInt)
-                    .toList();
-            }
         }
 
         public static List<InnerTimetableLectureResponse> from(List<TimetableLecture> timetableLectures) {
@@ -200,8 +211,6 @@ private static String getClassTime(TimetableLecture timetableLecture, Lecture le
     }
 
     private static final String GRADE_ZERO = "0";
-    private static final int INITIAL_BRACE_INDEX = 1;
-    private static final String SEPARATOR = ",";
 
     public static TimetableLectureResponse of(TimetableFrame timetableFrame, Integer grades, Integer totalGrades) {
         return new TimetableLectureResponse(

src/test/java/in/koreatech/koin/acceptance/TimetableLectureApiTest.java

@@ -286,7 +286,11 @@ void setup() {
                             "design_score": "0",
                             "class_infos": [
                               {
-                                "class_time": [12, 13, 14, 15, 210, 211, 212, 213],
+                                "class_time": [12, 13, 14, 15],
+                                "class_place": null
+                              },
+                              {
+                                "class_time": [210, 211, 212, 213],
                                 "class_place": null
                               }
                             ],