content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.druid.pool;
  
  import junit.framework.TestCase;
  import org.junit.Assert;
  
  import java.sql.Connection;
  import java.util.concurrent.CountDownLatch;
  
  public class ConcurrentTest extends TestCase {
      private String jdbcUrl;
      private String user;
      private String password;
      private String driverClass;
      private int minPoolSize = 50;
      private int maxPoolSize = 100;
      private int maxActive = 500;
  
      protected void setUp() throws Exception {
          // jdbcUrl =
          // "jdbc:mysql://a.b.c.d/dragoon_v25masterdb?useUnicode=true&characterEncoding=UTF-8";
          // user = "dragoon25";
          // password = "dragoon25";
          // driverClass = "com.mysql.jdbc.Driver";
  
          jdbcUrl = "jdbc:fake:dragoon_v25masterdb";
          user = "dragoon25";
          password = "dragoon25";
          driverClass = "com.alibaba.druid.mock.MockDriver";
      }
  
      public void test_concurrent_2() throws Exception {
          final DruidDataSource dataSource = new DruidDataSource();
  
          Class.forName("com.alibaba.druid.mock.MockDriver");
  
          dataSource.setInitialSize(10);
          dataSource.setMaxActive(maxActive);
          dataSource.setMinIdle(minPoolSize);
          dataSource.setMaxIdle(maxPoolSize);
          dataSource.setPoolPreparedStatements(true);
          dataSource.setDriverClassName(driverClass);
          dataSource.setUrl(jdbcUrl);
          dataSource.setPoolPreparedStatements(true);
          dataSource.setUsername(user);
          dataSource.setPassword(password);
  
          final int THREAD_COUNT = 2;
          final int LOOP_COUNT = 1000 * 1000;
  
          final CountDownLatch startLatch = new CountDownLatch(1);
          final CountDownLatch endLatch = new CountDownLatch(THREAD_COUNT);
  
          for (int threadIndex = 0; threadIndex < THREAD_COUNT; ++threadIndex) {
              Thread thread = new Thread() {
                  public void run() {
                      try {
                          startLatch.await();
  
                          for (int i = 0; i < LOOP_COUNT; ++i) {
                              Connection conn = dataSource.getConnection();
                              conn.close();
                          }
                      } catch (Throwable e) {
                          e.printStackTrace();
                      } finally {
                          endLatch.countDown();
                      }
                  }
              };
              thread.start();
          }
  
          startLatch.countDown();
          endLatch.await();
  
          Assert.assertEquals(THREAD_COUNT * LOOP_COUNT, dataSource.getConnectCount());
          Assert.assertEquals(THREAD_COUNT * LOOP_COUNT, dataSource.getCloseCount());
          Assert.assertEquals(0, dataSource.getConnectErrorCount());
          Assert.assertEquals(0, dataSource.getActiveCount());
      }
  }
  