diff --git a/test/src/test/java/cn/edu/tsinghua/iginx/integration/expansion/mysql/MySQLCapacityExpansionIT.java b/test/src/test/java/cn/edu/tsinghua/iginx/integration/expansion/mysql/MySQLCapacityExpansionIT.java
index 53d7e635a9..f75fbea476 100644
--- a/test/src/test/java/cn/edu/tsinghua/iginx/integration/expansion/mysql/MySQLCapacityExpansionIT.java
+++ b/test/src/test/java/cn/edu/tsinghua/iginx/integration/expansion/mysql/MySQLCapacityExpansionIT.java
@@ -18,7 +18,7 @@ public MySQLCapacityExpansionIT() {
         StorageEngineType.relational,
         "engine:mysql, username:root,"
             + "meta_properties_path:dataSources/relational/src/main/resources/mysql-meta-template.properties",
-            new MySQLHistoryDataGenerator());
+        new MySQLHistoryDataGenerator());
     ConfLoader conf = new ConfLoader(Controller.CONFIG_FILE);
     DBConf dbConf = conf.loadDBConf(conf.getStorageType());
     Constant.oriPort = dbConf.getDBCEPortMap().get(Constant.ORI_PORT_NAME);
diff --git a/test/src/test/java/cn/edu/tsinghua/iginx/integration/expansion/postgresql/PostgreSQLCapacityExpansionIT.java b/test/src/test/java/cn/edu/tsinghua/iginx/integration/expansion/postgresql/PostgreSQLCapacityExpansionIT.java
index bbd7957785..0ced1e22a1 100644
--- a/test/src/test/java/cn/edu/tsinghua/iginx/integration/expansion/postgresql/PostgreSQLCapacityExpansionIT.java
+++ b/test/src/test/java/cn/edu/tsinghua/iginx/integration/expansion/postgresql/PostgreSQLCapacityExpansionIT.java
@@ -15,7 +15,10 @@ public class PostgreSQLCapacityExpansionIT extends BaseCapacityExpansionIT {
   private static final Logger LOGGER = LoggerFactory.getLogger(PostgreSQLCapacityExpansionIT.class);
 
   public PostgreSQLCapacityExpansionIT() {
-    super(StorageEngineType.relational, "engine:postgresql, username:postgres, password:postgres", new PostgreSQLHistoryDataGenerator());
+    super(
+        StorageEngineType.relational,
+        "engine:postgresql, username:postgres, password:postgres",
+        new PostgreSQLHistoryDataGenerator());
     ConfLoader conf = new ConfLoader(Controller.CONFIG_FILE);
     DBConf dbConf = conf.loadDBConf(conf.getStorageType());
     Constant.oriPort = dbConf.getDBCEPortMap().get(Constant.ORI_PORT_NAME);