[BE] 방 참가 로직에서 잘못된 요청 값 수정(#564)

backend/src/main/java/corea/participation/controller/ParticipationController.java

@@ -2,6 +2,7 @@
 
 import corea.auth.annotation.LoginMember;
 import corea.auth.domain.AuthInfo;
+import corea.participation.dto.ParticipationHttpRequest;
 import corea.participation.dto.ParticipationRequest;
 import corea.participation.service.ParticipationService;
 import lombok.RequiredArgsConstructor;
@@ -20,8 +21,8 @@ public class ParticipationController implements ParticipationControllerSpecifica
     public ResponseEntity<Void> participate(@PathVariable long id,
                                             @LoginMember AuthInfo authInfo,
                                             @RequestParam(value = "role", defaultValue = "both") String role,
-                                            @RequestBody int matchingSize) {
-        participationService.participate(new ParticipationRequest(id, authInfo.getId(), role, matchingSize));
+                                            @RequestBody ParticipationHttpRequest participationHttpRequest) {
+        participationService.participate(new ParticipationRequest(id, authInfo.getId(), role, participationHttpRequest.matchingSize()));
         return ResponseEntity.ok()
                 .build();
     }

backend/src/main/java/corea/participation/controller/ParticipationControllerSpecification.java

@@ -4,6 +4,7 @@
 import corea.exception.ExceptionType;
 import corea.exception.ExceptionTypeGroup;
 import corea.global.annotation.ApiErrorResponses;
+import corea.participation.dto.ParticipationHttpRequest;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -31,7 +32,7 @@ ResponseEntity<Void> participate(
             String role,
 
             @Parameter(description = "참여자가 원하는 매칭 인원 수")
-            int matchingSize);
+            ParticipationHttpRequest matchingSize);
 
     @Operation(summary = "방 참여를 취소합니다.",
             description = "참여 취소를 원하는 방 상세 페이지에 위치한 취소 버튼을 누르면 참여를 취소할 수 있습니다. <br>" +

backend/src/main/java/corea/participation/dto/ParticipationHttpRequest.java

@@ -0,0 +1,8 @@
+package corea.participation.dto;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record ParticipationHttpRequest(
+        @Schema(description = "참여자가 원하는 매칭 인원 수", example = "3")
+        int matchingSize) {
+}

backend/src/test/java/corea/participation/controller/ParticipationControllerTest.java

@@ -6,6 +6,7 @@
 import corea.fixture.RoomFixture;
 import corea.member.domain.Member;
 import corea.member.repository.MemberRepository;
+import corea.participation.dto.ParticipationHttpRequest;
 import corea.room.domain.Room;
 import corea.room.repository.RoomRepository;
 import io.restassured.RestAssured;
@@ -35,7 +36,7 @@ void participate() {
         String token = tokenService.createAccessToken(member);
 
         RestAssured.given().auth().oauth2(token)
-                .body(2)
+                .body(new ParticipationHttpRequest(2))
                 .contentType(ContentType.JSON)
                 .when().post("/participate/" + room.getId())
                 .then().log().all()