/*
    *    Copyright 2009-2023 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
    *
    *       https://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.datasource.pooled;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.sql.Statement;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.ibatis.testcontainers.MysqlContainer;
  import org.junit.jupiter.api.Tag;
  import org.junit.jupiter.api.Test;
  
  @Tag("TestcontainersTests")
  public class MysqlTimeoutTest {
  
    @Test
    void shouldReconnectWhenServerKilledLeakedConnection() throws Exception {
      // See #748
      PooledDataSource ds = MysqlContainer.getPooledDataSource();
      ds.setPoolMaximumActiveConnections(1);
      ds.setPoolMaximumIdleConnections(1);
      ds.setPoolTimeToWait(1000);
      ds.setPoolMaximumCheckoutTime(2000);
      ds.setPoolPingEnabled(true);
      ds.setPoolPingQuery("select 1");
      ds.setDefaultAutoCommit(true);
      // MySQL wait_timeout * 1000 or less. (unit:ms)
      ds.setPoolPingConnectionsNotUsedFor(1000);
  
      Connection con1 = ds.getConnection();
  
      Statement stmt = con1.createStatement();
      stmt.execute("set session wait_timeout = 3");
  
      executeQuery(con1);
      // Simulate connection leak by not closing.
      // con1.close();
  
      // Wait for disconnected from mysql...
      Thread.sleep(TimeUnit.SECONDS.toMillis(3));
  
      // Should return usable connection.
      Connection con2 = ds.getConnection();
      executeQuery(con2);
  
      con1.close();
      con2.close();
    }
  
    private void executeQuery(Connection con) throws SQLException {
      try (PreparedStatement st = con.prepareStatement("select 1"); ResultSet rs = st.executeQuery()) {
        while (rs.next()) {
          assertEquals(1, rs.getInt(1));
        }
      }
    }
  
  }