/*
 * 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.proxy;

import java.util.Properties;

import junit.framework.TestCase;

import org.junit.Assert;

import com.alibaba.druid.filter.FilterAdapter;
import com.alibaba.druid.mock.MockDriver;
import com.alibaba.druid.proxy.DruidDriver;
import com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl;
import com.alibaba.druid.stat.JdbcStatManager;
import com.alibaba.druid.util.JdbcUtils;

public class DruidDriverTest extends TestCase {
    protected void tearDown() throws Exception {
        DruidDriver.getProxyDataSources().clear();
        Assert.assertEquals(0, JdbcStatManager.getInstance().getSqlList().size());
    }

    public static class PublicJdbcFilterAdapter extends FilterAdapter {
        public PublicJdbcFilterAdapter() {
        }

    }

    static class PrivateJdbcFilterAdapter extends FilterAdapter {
        private PrivateJdbcFilterAdapter() {
        }
    }

    public static class InitErrorJdbcFilterAdapter extends FilterAdapter {
        public InitErrorJdbcFilterAdapter() throws InstantiationException {
            throw new InstantiationException("init error");
        }

    }

    static class PrivateDriver extends MockDriver {
        private PrivateDriver() {
        }
    }

    public static class InitErrorDriver extends MockDriver {
        public InitErrorDriver() throws InstantiationException {
            throw new InstantiationException("init error");
        }
    }

    public void test_registerDriver() throws Exception {
        Assert.assertFalse(DruidDriver.registerDriver(null));
    }

    public void test_getRawDriverClassName() throws Exception {
        String className = JdbcUtils.getDriverClassName("jdbc:mysql:");
        if (className.equals("com.mysql.jdbc.Driver")) {
            assertEquals("com.mysql.jdbc.Driver", JdbcUtils.getDriverClassName("jdbc:mysql:"));
        } else {
            assertEquals("com.mysql.cj.jdbc.Driver", JdbcUtils.getDriverClassName("jdbc:mysql:"));
        }

        Assert.assertEquals("oracle.jdbc.OracleDriver", JdbcUtils.getDriverClassName("jdbc:oracle:"));
        Assert.assertEquals("com.microsoft.jdbc.sqlserver.SQLServerDriver",
                JdbcUtils.getDriverClassName("jdbc:microsoft:"));
        Assert.assertEquals("org.postgresql.Driver", JdbcUtils.getDriverClassName("jdbc:postgresql:xx"));
        Assert.assertEquals("net.sourceforge.jtds.jdbc.Driver", JdbcUtils.getDriverClassName("jdbc:jtds:"));
        {
            Exception error = null;
            try {
                JdbcUtils.getDriverClassName("jdbc:xxx:");
            } catch (Exception ex) {
                error = ex;
            }
            Assert.assertNotNull(error);
        }
    }

    public void test_getRawDriver() throws Exception {
        DruidDriver driver = new DruidDriver();
        Assert.assertNotNull(driver.createDriver(MockDriver.class.getName()));

        {
            Exception error = null;
            try {
                driver.createDriver(null);
            } catch (Exception ex) {
                error = ex;
            }
            Assert.assertNotNull(error);
        }
        {
            Exception error = null;
            try {
                driver.createDriver(PrivateDriver.class.getName());
            } catch (Exception ex) {
                error = ex;
            }
            Assert.assertNotNull(error);
        }

        {
            Exception error = null;
            try {
                driver.createDriver(InitErrorDriver.class.getName());
            } catch (Exception ex) {
                error = ex;
            }
            Assert.assertNotNull(error);
        }

    }

    public void test_driver_wrap() throws Exception {
        DruidDriver driver = new DruidDriver();

        {
            ConnectionProxyImpl conn = (ConnectionProxyImpl) driver.connect("jdbc:wrap-jdbc:filters=:name=driverWrapperTest:jdbc:derby:memory:driverWrapperTestDB;create=true",
                    new Properties());
            Assert.assertEquals(0, conn.getDirectDataSource().getProxyFilters().size());
            conn.close();
        }
        {
            ConnectionProxyImpl conn = (ConnectionProxyImpl) driver.connect("jdbc:wrap-jdbc:filters=,:name=driverWrapperTest:jdbc:derby:memory:driverWrapperTestDB;create=true",
                    new Properties());
            Assert.assertEquals(0, conn.getDirectDataSource().getProxyFilters().size());
            conn.close();
        }
        {
            ConnectionProxyImpl conn = (ConnectionProxyImpl) driver.connect("jdbc:wrap-jdbc:filters=,:jdbc:derby:memory:driverWrapperTestDB;create=true",
                    new Properties());
            Assert.assertEquals(0, conn.getDirectDataSource().getProxyFilters().size());
            conn.close();
        }
        {
            ConnectionProxyImpl conn = (ConnectionProxyImpl) driver.connect("jdbc:wrap-jdbc:filters=,:name=:jdbc:derby:memory:driverWrapperTestDB;create=true",
                    new Properties());
            Assert.assertEquals(0, conn.getDirectDataSource().getProxyFilters().size());
            conn.close();
        }
        {
            ConnectionProxyImpl conn = (ConnectionProxyImpl) driver.connect("jdbc:wrap-jdbc:driver=:filters=,:name=driverWrapperTest:jdbc:derby:memory:driverWrapperTestDB;create=true",
                    new Properties());
            Assert.assertEquals(0, conn.getDirectDataSource().getProxyFilters().size());
            conn.close();
        }
        {
            ConnectionProxyImpl conn = (ConnectionProxyImpl) driver.connect("jdbc:wrap-jdbc:name=driverWrapperTest:jdbc:derby:memory:driverWrapperTestDB;create=true",
                    new Properties());
            Assert.assertEquals(0, conn.getDirectDataSource().getProxyFilters().size());
            conn.close();
        }
        {
            ConnectionProxyImpl conn = (ConnectionProxyImpl) driver.connect("jdbc:wrap-jdbc:filters="
                            + PublicJdbcFilterAdapter.class.getName()
                            + ":name=driverWrapperTest:jdbc:derby:memory:driverWrapperTestDB;create=true",
                    new Properties());
            Assert.assertEquals(1, conn.getDirectDataSource().getProxyFilters().size());
            conn.close();
        }
        {
            Exception error = null;
            try {
                driver.connect("jdbc:wrap-jdbc:filters=" + PrivateJdbcFilterAdapter.class.getName()
                                + ":name=driverWrapperTest:jdbc:derby:memory:driverWrapperTestDB;create=true",
                        new Properties()).close();
            } catch (Exception ex) {
                error = ex;
            }
            Assert.assertNotNull(error);
        }
        {
            Exception error = null;
            try {
                driver.connect("jdbc:wrap-jdbc:filters=" + InitErrorJdbcFilterAdapter.class.getName()
                                + ":name=driverWrapperTest:jdbc:derby:memory:driverWrapperTestDB;create=true",
                        new Properties()).close();
            } catch (Exception ex) {
                error = ex;
            }
            Assert.assertNotNull(error);
        }
    }

}
