diff --git a/src/test/java/com/alibaba/druid/bvt/pool/Case1.java b/src/test/java/com/alibaba/druid/bvt/pool/Case1.java
index 978e67dab7..3912652cdb 100644
--- a/src/test/java/com/alibaba/druid/bvt/pool/Case1.java
+++ b/src/test/java/com/alibaba/druid/bvt/pool/Case1.java
@@ -6,11 +6,16 @@ import java.util.Properties;
 
 import com.alibaba.druid.mock.MockDriver;
 import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.stat.DruidDataSourceStatManager;
 
+import junit.framework.Assert;
 import junit.framework.TestCase;
 
 public class Case1 extends TestCase {
-
+    protected void tearDown() throws Exception {
+        Assert.assertEquals(0, DruidDataSourceStatManager.getInstance().getDataSourceList().size());
+    }
+    
     public void test_f() throws Exception {
         final DruidDataSource dataSource = new DruidDataSource();
         dataSource.setTimeBetweenConnectErrorMillis(100);
@@ -37,5 +42,7 @@ public class Case1 extends TestCase {
 
         Connection conn = dataSource.getConnection();
         conn.close();
+        
+        dataSource.close();
     }
 }
diff --git a/src/test/java/com/alibaba/druid/bvt/pool/Case2.java b/src/test/java/com/alibaba/druid/bvt/pool/Case2.java
index c72a56959f..3c260d2d3f 100644
--- a/src/test/java/com/alibaba/druid/bvt/pool/Case2.java
+++ b/src/test/java/com/alibaba/druid/bvt/pool/Case2.java
@@ -22,6 +22,7 @@ import junit.framework.Assert;
 import junit.framework.TestCase;
 
 import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.stat.DruidDataSourceStatManager;
 import com.alibaba.druid.util.JMXUtils;
 
 /**
@@ -30,7 +31,10 @@ import com.alibaba.druid.util.JMXUtils;
  * @author admin 2011-5-4 下午02:45:21
  */
 public class Case2 extends TestCase {
-
+    protected void tearDown() throws Exception {
+        Assert.assertEquals(0, DruidDataSourceStatManager.getInstance().getDataSourceList().size());
+    }
+    
     public void test_singleThread() throws Exception {
 
         Class.forName("com.alibaba.druid.mock.MockDriver");