test: 알림 이벤트 리스너 테스트 추가

backend/pium/src/test/java/com/official/pium/notification/application/NotificationEventListenerTest.java

@@ -0,0 +1,38 @@
+package com.official.pium.notification.application;
+
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import com.official.pium.IntegrationTest;
+import com.official.pium.petPlant.event.notification.NotificationEvent;
+import java.util.UUID;
+import org.junit.jupiter.api.DisplayNameGeneration;
+import org.junit.jupiter.api.DisplayNameGenerator;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.ApplicationEventPublisher;
+
+@SuppressWarnings("NonAsciiCharacters")
+@DisplayNameGeneration(DisplayNameGenerator.ReplaceUnderscores.class)
+class NotificationEventListenerTest extends IntegrationTest {
+
+    @Autowired
+    private ApplicationEventPublisher eventPublisher;
+
+    @MockBean
+    private NotificationEventListener notificationEventListener;
+
+    @Test
+    void 알림_이벤트가_발행되면_알림_이벤트_리스너가_동작한다() {
+        NotificationEvent event = NotificationEvent.builder()
+                .deviceToken(UUID.randomUUID().toString())
+                .title("알림 이벤트")
+                .body("발송")
+                .build();
+
+        eventPublisher.publishEvent(event);
+
+        verify(notificationEventListener, times(1)).handleNotificationEvent(event);
+    }
+}