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.bvt.pool;
  
  import com.alibaba.druid.mock.MockDriver;
  import com.alibaba.druid.pool.DruidDataSource;
  import com.alibaba.druid.stat.DruidDataSourceStatManager;
  import junit.framework.TestCase;
  
  import javax.management.ObjectName;
  
  import java.lang.management.ManagementFactory;
  import java.sql.Connection;
  
  public class TestIdle3 extends TestCase {
      protected void setUp() throws Exception {
          DruidDataSourceStatManager.clear();
      }
  
      protected void tearDown() throws Exception {
          assertEquals(0, DruidDataSourceStatManager.getInstance().getDataSourceList().size());
      }
  
      public void test_idle2() throws Exception {
          MockDriver driver = new MockDriver();
  
          DruidDataSource dataSource = new DruidDataSource();
          dataSource.setUrl("jdbc:mock:xxx");
          dataSource.setDriver(driver);
          dataSource.setInitialSize(1);
          dataSource.setMaxActive(14);
          dataSource.setMaxIdle(14);
          dataSource.setMinIdle(1);
          dataSource.setMinEvictableIdleTimeMillis(30 * 100); // 300 / 10
          dataSource.setTimeBetweenEvictionRunsMillis(18 * 100); // 180 / 10
          dataSource.setTestWhileIdle(true);
          dataSource.setTestOnBorrow(false);
          dataSource.setValidationQuery("SELECT 1");
          dataSource.setFilters("stat");
  
          ManagementFactory.getPlatformMBeanServer().registerMBean(dataSource,
                  new ObjectName(
                          "com.alibaba:type=DataSource,name=mysql"));
          ManagementFactory.getPlatformMBeanServer().registerMBean(dataSource,
                  new ObjectName(
                          "com.alibaba:type=DataSource,name=oracle"));
  
          // 第一次创建连接
          {
              assertEquals(0, dataSource.getCreateCount());
              assertEquals(0, dataSource.getActiveCount());
  
              Connection conn = dataSource.getConnection();
  
              assertEquals(dataSource.getInitialSize(), dataSource.getCreateCount());
              assertEquals(dataSource.getInitialSize(), driver.getConnections().size());
              assertEquals(1, dataSource.getActiveCount());
  
              conn.close();
              assertEquals(0, dataSource.getDestroyCount());
              assertEquals(1, driver.getConnections().size());
              assertEquals(1, dataSource.getCreateCount());
              assertEquals(0, dataSource.getActiveCount());
          }
  
          {
              // 并发创建14个
              int count = 14;
              Connection[] connections = new Connection[count];
              for (int i = 0; i < count; ++i) {
                  connections[i] = dataSource.getConnection();
                  assertEquals(i + 1, dataSource.getActiveCount());
              }
  
              assertEquals(dataSource.getMaxActive(), dataSource.getCreateCount());
              assertEquals(count, driver.getConnections().size());
  
              // 全部关闭
              for (int i = 0; i < count; ++i) {
                  connections[i].close();
                  assertEquals(count - i - 1, dataSource.getActiveCount());
              }
  
              assertEquals(dataSource.getMaxActive(), dataSource.getCreateCount());
              assertEquals(0, dataSource.getActiveCount());
              assertEquals(14, driver.getConnections().size());
          }
  
          // 连续打开关闭单个连接
          for (int i = 0; i < 1000; ++i) {
              assertEquals(0, dataSource.getActiveCount());
              Connection conn = dataSource.getConnection();
  
              assertEquals(1, dataSource.getActiveCount());
  
              Thread.sleep(10);
              conn.close();
          }
          assertEquals(true, dataSource.getPoolingCount() == 2 || dataSource.getPoolingCount() == 1);
  
          dataSource.close();
      }
  }
  