com.jolbox.bonecp.spring.TestDynamicDataSourceProxy.java Source code

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Here is the source code for com.jolbox.bonecp.spring.TestDynamicDataSourceProxy.java

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/**
 *  Copyright 2010 Wallace Wadge
 *
 *    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.jolbox.bonecp.spring;

import static org.easymock.EasyMock.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.fail;

import java.sql.SQLException;

import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.jdbc.datasource.DelegatingDataSource;

import com.jolbox.bonecp.BoneCPConfig;
import com.jolbox.bonecp.BoneCPDataSource;
import com.jolbox.bonecp.MockJDBCDriver;

/**
 * Tests DynamicDataSourceProxy.
 * @author Wallace
 *
 */
public class TestDynamicDataSourceProxy {

    /**
     * @throws ClassNotFoundException
     * @throws SQLException 
     */
    @BeforeClass
    public static void setup() throws ClassNotFoundException, SQLException {
        Class.forName("com.jolbox.bonecp.MockJDBCDriver");
        new MockJDBCDriver();
    }

    /**
     * Test method for {@link com.jolbox.bonecp.spring.DynamicDataSourceProxy#DynamicDataSourceProxy(javax.sql.DataSource)}.
     */
    @Test
    public void testDynamicDataSourceProxyDataSource() {
        DelegatingDataSource mockDataSource = createNiceMock(DelegatingDataSource.class);
        DynamicDataSourceProxy ddsp = new DynamicDataSourceProxy(mockDataSource);
        assertEquals(mockDataSource, ddsp.getTargetDataSource());
    }

    /**
     * Test method for {@link com.jolbox.bonecp.spring.DynamicDataSourceProxy#DynamicDataSourceProxy()}.
     */
    @Test
    public void testDynamicDataSourceProxy() {
        new DynamicDataSourceProxy(); // coverage
    }

    /**
     * Test method for {@link com.jolbox.bonecp.spring.DynamicDataSourceProxy#switchDataSource(com.jolbox.bonecp.BoneCPConfig)}.
     * @throws SQLException 
     * @throws ClassNotFoundException 
     */
    @Test
    public void testSwitchDataSource() throws SQLException, ClassNotFoundException {

        BoneCPDataSource mockDataSource = createNiceMock(BoneCPDataSource.class);
        DynamicDataSourceProxy ddsp = new DynamicDataSourceProxy();
        // Test #1: Check for correct instance.
        ddsp.setTargetDataSource(new DelegatingDataSource());
        try {
            ddsp.switchDataSource(null);
            fail("Should throw an exception");
        } catch (SQLException e) {
            // do nothing
        }

        // Test #2: Given a good config, should initialize pool and switch datasource to it
        BoneCPConfig config = new BoneCPConfig();
        config.setJdbcUrl("jdbc:mock");
        config.setUsername("sa");
        config.setPassword("");
        config.setMinConnectionsPerPartition(2);
        config.setMaxConnectionsPerPartition(2);
        config.setPartitionCount(1);

        ddsp = new DynamicDataSourceProxy(mockDataSource);

        // Old datasource should be closed.
        mockDataSource.close();
        expectLastCall().once();
        replay(mockDataSource);
        ddsp.switchDataSource(config);
        // and a new datasource should be in place
        assertNotSame(mockDataSource, ddsp.getTargetDataSource());
        verify(mockDataSource);
    }

}