/*
    *    Copyright 2009-2021 the original author or authors.
    *
    *    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 org.apache.ibatis.jdbc;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  import java.sql.Connection;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Properties;
  
  import org.apache.ibatis.BaseDataTest;
  import org.apache.ibatis.datasource.pooled.PooledDataSource;
  import org.hsqldb.jdbc.JDBCConnection;
  import org.junit.jupiter.api.Test;
  
  class PooledDataSourceTest extends BaseDataTest {
  
    @Test
    void shouldProperlyMaintainPoolOf3ActiveAnd2IdleConnections() throws Exception {
      PooledDataSource ds = createPooledDataSource(JPETSTORE_PROPERTIES);
      try {
        runScript(ds, JPETSTORE_DDL);
        ds.setDefaultAutoCommit(false);
        ds.setDriverProperties(new Properties() {
          {
            setProperty("username", "sa");
            setProperty("password", "");
          }
        });
        ds.setPoolMaximumActiveConnections(3);
        ds.setPoolMaximumIdleConnections(2);
        ds.setPoolMaximumCheckoutTime(10000);
        ds.setPoolPingConnectionsNotUsedFor(1);
        ds.setPoolPingEnabled(true);
        ds.setPoolPingQuery("SELECT * FROM PRODUCT");
        ds.setPoolTimeToWait(10000);
        ds.setLogWriter(null);
        List<Connection> connections = new ArrayList<>();
        for (int i = 0; i < 3; i++) {
          connections.add(ds.getConnection());
        }
        assertEquals(3, ds.getPoolState().getActiveConnectionCount());
        for (Connection c : connections) {
          c.close();
        }
        assertEquals(2, ds.getPoolState().getIdleConnectionCount());
        assertEquals(4, ds.getPoolState().getRequestCount());
        assertEquals(0, ds.getPoolState().getBadConnectionCount());
        assertEquals(0, ds.getPoolState().getHadToWaitCount());
        assertEquals(0, ds.getPoolState().getAverageOverdueCheckoutTime());
        assertEquals(0, ds.getPoolState().getClaimedOverdueConnectionCount());
        assertEquals(0, ds.getPoolState().getAverageWaitTime());
        assertNotNull(ds.getPoolState().toString());
      } finally {
        ds.forceCloseAll();
      }
    }
  
    @Test
    void shouldNotFailCallingToStringOverAnInvalidConnection() throws Exception {
      PooledDataSource ds = createPooledDataSource(JPETSTORE_PROPERTIES);
      Connection c = ds.getConnection();
      c.close();
      c.toString();
    }
  
    @Test
    void ShouldReturnRealConnection() throws Exception {
      PooledDataSource ds = createPooledDataSource(JPETSTORE_PROPERTIES);
      Connection c = ds.getConnection();
      JDBCConnection realConnection = (JDBCConnection) PooledDataSource.unwrapConnection(c);
      c.close();
    }
  }