content: package com.alibaba.druid.bvt.pool;
  
  import com.alibaba.druid.filter.FilterAdapter;
  import com.alibaba.druid.filter.FilterChain;
  import com.alibaba.druid.pool.DruidDataSource;
  import com.alibaba.druid.proxy.jdbc.ConnectionProxy;
  import junit.framework.TestCase;
  
  import java.sql.Connection;
  import java.sql.SQLException;
  
  /**
   * 这个场景测试minIdle > maxActive
   *
   * @author wenshao [szujobs@hotmail.com]
   */
  public class DruidDataSourceTest_lastError extends TestCase {
      private DruidDataSource dataSource;
  
      protected void setUp() throws Exception {
          dataSource = new DruidDataSource();
          dataSource.setUrl("jdbc:mock:xxx");
          dataSource.setTestOnBorrow(false);
  
          dataSource.getProxyFilters().add(new FilterAdapter() {
              public void connection_setAutoCommit(FilterChain chain, ConnectionProxy connection, boolean autoCommit)
                      throws SQLException {
                  throw new SQLException();
              }
          });
      }
  
      protected void tearDown() throws Exception {
          dataSource.close();
      }
  
      public void test_error() throws Exception {
          assertNull(dataSource.getLastError());
          assertNull(dataSource.getLastErrorTime());
          assertEquals(0, dataSource.getLastErrorTimeMillis());
  
          Connection conn = dataSource.getConnection();
  
          Exception error = null;
          try {
              conn.setAutoCommit(false);
          } catch (Exception e) {
              error = e;
          }
  
          assertNotNull(error);
  
          assertNotNull(dataSource.getLastError());
          assertNotNull(dataSource.getLastErrorTime());
          assertEquals(true, dataSource.getLastErrorTimeMillis() > 0);
      }
  }
  