diff --git a/src/test/java/com/alibaba/druid/bvt/pool/TestStat.java b/src/test/java/com/alibaba/druid/bvt/pool/TestStat.java
index 279d10d618..28c7ddebaa 100644
--- a/src/test/java/com/alibaba/druid/bvt/pool/TestStat.java
+++ b/src/test/java/com/alibaba/druid/bvt/pool/TestStat.java
@@ -1,9 +1,12 @@
 package com.alibaba.druid.bvt.pool;
 
+import java.lang.management.ManagementFactory;
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 
+import javax.management.ObjectName;
+
 import junit.framework.Assert;
 import junit.framework.TestCase;
 
@@ -23,6 +26,7 @@ public class TestStat extends TestCase {
 
     protected void tearDown() throws Exception {
         dataSource.close();
+        Assert.assertEquals(0, DruidDataSourceStatManager.getInstance().getDataSourceList().size());
     }
 
     public void test_stat() throws Exception {
@@ -43,7 +47,9 @@ public class TestStat extends TestCase {
         stmt.close();
         
         JdbcStatManager.getInstance().getDataSourceList();
-        DruidDataSourceStatManager.getInstance().getDataSourceList();
+        Assert.assertEquals(1, DruidDataSourceStatManager.getInstance().getDataSourceList().size());
 
+        ManagementFactory.getPlatformMBeanServer().registerMBean(DruidDataSourceStatManager.getInstance(), new ObjectName("com.alibaba.druid:type=DruidDataSourceStat"));
+        
     }
 }