content: package com.alibaba.druid.pool;
  
  import com.alibaba.druid.pool.vendor.MySqlExceptionSorter;
  import com.alibaba.druid.util.JdbcUtils;
  import com.mysql.jdbc.Driver;
  import junit.framework.TestCase;
  
  import java.lang.reflect.Method;
  import java.sql.SQLException;
  
  public class ExeptionSorterTest extends TestCase {
      private DruidDataSource dataSource;
  
      protected void setUp() throws Exception {
          dataSource = new DruidDataSource();
          dataSource.setDriver(new MyDriver());
      }
  
      protected void tearDown() throws Exception {
          JdbcUtils.close(dataSource);
      }
  
      public void test_dataSource() throws Exception {
          Method method = DruidDataSource.class.getDeclaredMethod("initExceptionSorter");
          method.setAccessible(true);
          method.invoke(dataSource);
  
          assertEquals(dataSource.getExceptionSorter().getClass(), MySqlExceptionSorter.class);
      }
  
      public static class MyDriver extends Driver {
          /**
           * Construct a new driver and register it with DriverManager
           *
           * @throws SQLException if a database error occurs.
           */
          public MyDriver() throws SQLException {
          }
      }
  }
  