content: package com.alibaba.druid;
  
  import com.alibaba.druid.stat.DruidDataSourceStatManager;
  import junit.framework.TestCase;
  import org.junit.Assert;
  
  import javax.management.openmbean.CompositeData;
  
  public class PoolTestCase extends TestCase {
      protected void setUp() throws Exception {
          DruidDataSourceStatManager.clear();
      }
  
      protected void tearDown() throws Exception {
          int size = DruidDataSourceStatManager.getInstance().getDataSourceList().size();
          String errorInfo = null;
          if (size > 0) {
              CompositeData compositeData = (CompositeData) DruidDataSourceStatManager
                      .getInstance()
                      .getDataSourceList()
                      .values()
                      .iterator()
                      .next();
              String name = (String) compositeData.get("Name");
              String url = (String) compositeData.get("URL");
              String initStackTrace = (String) compositeData.get("InitStackTrace");
  
              errorInfo = "Name " + name + ", URL " + url + ", initStackTrace=" + initStackTrace;
          }
          Assert.assertEquals(errorInfo, 0, size);
      }
  }
  