Update and rename PostRepositoryTest.java to PostRepositoryIntegrationTest.java

persistence-modules/java-jpa/src/test/java/com/baeldung/jpa/entitygraph/repo/PostRepositoryIntegrationTest.java

@@ -10,7 +10,7 @@ import org.junit.Test;
 
 import static org.junit.Assert.*;
 
-public class PostRepositoryTest {
+public class PostRepositoryIntegrationTest {
 
     private static PostRepository postRepository = null;
 
@@ -65,4 +65,4 @@ public class PostRepositoryTest {
     public static void destroy() {
         postRepository.clean();
     }
-}
+}