[Refactor] 동시성 테스트 스레드 카운트 톰켓 스레드 수치 동결

src/test/java/com/daedan/festabook/announcement/controller/AnnouncementControllerTest.java

@@ -23,14 +23,15 @@
 import com.daedan.festabook.festival.domain.Festival;
 import com.daedan.festabook.festival.domain.FestivalFixture;
 import com.daedan.festabook.festival.infrastructure.FestivalJpaRepository;
-import com.daedan.festabook.global.lock.ConcurrencyTestHelper;
 import com.daedan.festabook.global.security.JwtTestHelper;
 import com.daedan.festabook.global.security.role.RoleType;
 import com.daedan.festabook.support.AcceptanceTestSupport;
 import io.restassured.RestAssured;
 import io.restassured.http.ContentType;
 import io.restassured.http.Header;
+import io.restassured.response.Response;
 import java.util.List;
+import java.util.concurrent.Callable;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
@@ -453,21 +454,18 @@ class ConcurrentTest {
 
             AnnouncementRequest request = AnnouncementRequestFixture.create(true);
 
-            int requestCount = 100;
-            Runnable httpRequest = () -> {
-                RestAssured
-                        .given()
-                        .header(authorizationHeader)
-                        .contentType(ContentType.JSON)
-                        .body(request)
-                        .when()
-                        .post("/announcements");
-            };
+            Callable<Response> httpRequest = () -> RestAssured
+                    .given()
+                    .header(authorizationHeader)
+                    .contentType(ContentType.JSON)
+                    .body(request)
+                    .when()
+                    .post("/announcements");
 
             int expectedPinnedAnnouncementCount = 3;
 
             // when
-            ConcurrencyTestHelper.test(requestCount, httpRequest);
+            concurrencyTestHelper.execute(httpRequest);
 
             // then
             Long result = announcementJpaRepository.countByFestivalIdAndIsPinnedTrue(festival.getId());
@@ -488,31 +486,26 @@ class ConcurrentTest {
             AnnouncementRequest createAnnouncement = AnnouncementRequestFixture.create(true);
             AnnouncementPinUpdateRequest updateAnnouncement = AnnouncementPinUpdateRequestFixture.create(true);
 
-            int requestCount = 100;
-            Runnable createAnnouncementRequest = () -> {
-                RestAssured
-                        .given()
-                        .header(authorizationHeader)
-                        .contentType(ContentType.JSON)
-                        .body(createAnnouncement)
-                        .when()
-                        .post("/announcements");
-            };
-
-            Runnable updateAnnouncementRequest = () -> {
-                RestAssured
-                        .given()
-                        .header(authorizationHeader)
-                        .contentType(ContentType.JSON)
-                        .body(updateAnnouncement)
-                        .when()
-                        .post("announcement/{announcementId}/pin", initAnnouncement.getId());
-            };
+            Callable<Response> createAnnouncementRequest = () -> RestAssured
+                    .given()
+                    .header(authorizationHeader)
+                    .contentType(ContentType.JSON)
+                    .body(createAnnouncement)
+                    .when()
+                    .post("/announcements");
+
+            Callable<Response> updateAnnouncementRequest = () -> RestAssured
+                    .given()
+                    .header(authorizationHeader)
+                    .contentType(ContentType.JSON)
+                    .body(updateAnnouncement)
+                    .when()
+                    .patch("/announcements/{announcementId}/pin", initAnnouncement.getId());
 
             int expectedPinnedAnnouncementCount = 3;
 
             // when
-            ConcurrencyTestHelper.test(requestCount, createAnnouncementRequest, updateAnnouncementRequest);
+            concurrencyTestHelper.execute(createAnnouncementRequest, updateAnnouncementRequest);
 
             // then
             Long result = announcementJpaRepository.countByFestivalIdAndIsPinnedTrue(festival.getId());

src/test/java/com/daedan/festabook/festival/service/FestivalNotificationConcurrencyTest.java

@@ -11,12 +11,12 @@
 import com.daedan.festabook.festival.dto.FestivalNotificationRequestFixture;
 import com.daedan.festabook.festival.infrastructure.FestivalJpaRepository;
 import com.daedan.festabook.festival.infrastructure.FestivalNotificationJpaRepository;
-import com.daedan.festabook.global.lock.ConcurrencyTestHelper;
 import com.daedan.festabook.support.AcceptanceTestSupport;
+import com.daedan.festabook.support.ConcurrencyTestResult;
 import io.restassured.RestAssured;
 import io.restassured.http.ContentType;
 import io.restassured.response.Response;
-import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.Callable;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -47,34 +47,24 @@ class subscribeFestivalNotification {
 
             FestivalNotificationRequest request = FestivalNotificationRequestFixture.create(device.getId());
 
-            int requestCount = 100;
-            AtomicInteger duplicateErrorCount = new AtomicInteger(0);
-
-            Runnable httpRequest = () -> {
-                Response response = RestAssured
-                        .given()
-                        .contentType(ContentType.JSON)
-                        .body(request)
-                        .when()
-                        .post("/festivals/{festivalId}/notifications", festival.getId());
-
-                if (response.getStatusCode() == HttpStatus.CONFLICT.value()) {
-                    String responseBody = response.getBody().asString();
-                    if (responseBody.contains("FestivalNotification 데이터베이스에 이미 존재합니다.")) {
-                        duplicateErrorCount.incrementAndGet();
-                    }
-                }
-            };
+            Callable<Response> httpRequest = () -> RestAssured
+                    .given()
+                    .contentType(ContentType.JSON)
+                    .body(request)
+                    .when()
+                    .post("/festivals/{festivalId}/notifications", festival.getId());
 
             // when
-            ConcurrencyTestHelper.test(requestCount, httpRequest);
+            ConcurrencyTestResult result = concurrencyTestHelper.execute(httpRequest);
 
             // then
-            Long result = festivalNotificationJpaRepository.countByFestivalIdAndDeviceId(
+            Long notificationCount = festivalNotificationJpaRepository.countByFestivalIdAndDeviceId(
                     festival.getId(), device.getId());
-            assertThat(result).isEqualTo(1);
+            assertThat(notificationCount).isEqualTo(1);
 
-            assertThat(duplicateErrorCount.get()).isEqualTo(99);
+            assertThat(result.getSuccessCount()).isEqualTo(1);
+            assertThat(result.getStatusCodeCount(HttpStatus.CONFLICT))
+                    .isEqualTo(result.getRequestCount() - result.getSuccessCount());
         }
     }
 }

src/test/java/com/daedan/festabook/support/AcceptanceTestSupport.java

@@ -8,17 +8,21 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayNameGeneration;
 import org.junit.jupiter.api.DisplayNameGenerator;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.test.web.server.LocalServerPort;
 import org.springframework.context.annotation.Import;
 import org.springframework.test.context.bean.override.mockito.MockitoBean;
 
-@Import(TestSecurityConfig.class)
+@Import({TestSecurityConfig.class, ConcurrencyTestHelper.class})
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
 @DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
 public abstract class AcceptanceTestSupport {
 
+    @Autowired
+    protected ConcurrencyTestHelper concurrencyTestHelper;
+
     @MockitoBean
     protected Clock clock;
 

src/test/java/com/daedan/festabook/support/ConcurrencyTestHelper.java

@@ -0,0 +1,60 @@
+package com.daedan.festabook.support;
+
+import io.restassured.response.Response;
+import java.util.concurrent.Callable;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@Component
+public class ConcurrencyTestHelper {
+
+    @Value("${server.tomcat.threads.max}")
+    private int tomcatThreadCount;
+
+    @SafeVarargs
+    public final ConcurrencyTestResult execute(Callable<Response>... requests) {
+        validateRequests(requests);
+        ConcurrencyTestResult result = new ConcurrencyTestResult();
+
+        try (ExecutorService executorService = Executors.newFixedThreadPool(tomcatThreadCount)) {
+            CountDownLatch startLatch = new CountDownLatch(1);
+            CountDownLatch endLatch = new CountDownLatch(tomcatThreadCount);
+
+            for (int i = 0; i < tomcatThreadCount; i++) {
+                int currentCount = i % requests.length;
+                executorService.submit(() -> {
+                    try {
+                        startLatch.await();
+                        Response response = requests[currentCount].call();
+
+                        HttpStatus httpStatus = HttpStatus.valueOf(response.getStatusCode());
+                        result.recordStatusCode(httpStatus);
+                    } catch (Exception e) {
+                        log.error("동시성 테스트 실행 중 예외 발생", e);
+                        result.recordStatusCode(HttpStatus.INTERNAL_SERVER_ERROR);
+                    } finally {
+                        endLatch.countDown();
+                    }
+                });
+            }
+
+            startLatch.countDown();
+            endLatch.await();
+        } catch (InterruptedException ignore) {
+        }
+        return result;
+    }
+
+    @SafeVarargs
+    private void validateRequests(Callable<Response>... requests) {
+        if (requests == null || requests.length == 0) {
+            throw new IllegalArgumentException("실행할 API 인자는 최소 1개 이상이어야 합니다.");
+        }
+    }
+}

src/test/java/com/daedan/festabook/support/ConcurrencyTestResult.java

@@ -0,0 +1,32 @@
+package com.daedan.festabook.support;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicLong;
+import org.springframework.http.HttpStatus;
+
+public class ConcurrencyTestResult {
+
+    private final Map<HttpStatus, Integer> statusCodeCounts = new ConcurrentHashMap<>();
+    private final AtomicLong requestCount = new AtomicLong();
+
+    public void recordStatusCode(HttpStatus status) {
+        statusCodeCounts.merge(status, 1, Integer::sum);
+        requestCount.incrementAndGet();
+    }
+
+    public int getStatusCodeCount(HttpStatus status) {
+        return statusCodeCounts.getOrDefault(status, 0);
+    }
+
+    public int getSuccessCount() {
+        return statusCodeCounts.entrySet().stream()
+                .filter(entry -> entry.getKey().is2xxSuccessful())
+                .mapToInt(Map.Entry::getValue)
+                .sum();
+    }
+
+    public long getRequestCount() {
+        return requestCount.get();
+    }
+}

src/test/resources/application.yml

@@ -31,3 +31,8 @@ secret:
 fcm:
   topic:
     festival-prefix: example-festival
+
+server:
+  tomcat:
+    threads:
+      max: 15