org.activiti5.standalone.initialization.ProcessEngineInitializationTest.java Source code

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Here is the source code for org.activiti5.standalone.initialization.ProcessEngineInitializationTest.java

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/* 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.activiti5.standalone.initialization;

import java.util.HashMap;
import java.util.Map;

import org.activiti.engine.ActivitiException;
import org.activiti.engine.ActivitiWrongDbException;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.impl.ProcessEngineImpl;
import org.activiti.engine.impl.db.DbSqlSession;
import org.activiti.engine.impl.db.DbSqlSessionFactory;
import org.activiti5.engine.impl.test.PvmTestCase;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;

/**
 * @author Tom Baeyens
 */
public class ProcessEngineInitializationTest extends PvmTestCase {

    public void testNoTables() {
        try {
            ProcessEngineConfiguration
                    .createProcessEngineConfigurationFromResource(
                            "org/activiti5/standalone/initialization/notables.activiti.cfg.xml")
                    .buildProcessEngine();
            fail("expected exception");
        } catch (Exception e) {
            // OK
            assertTextPresent("no activiti tables in db", e.getMessage());
        }
    }

    public void testVersionMismatch() {
        // first create the schema
        ProcessEngineImpl processEngine = (ProcessEngineImpl) ProcessEngineConfiguration
                .createProcessEngineConfigurationFromResource(
                        "org/activiti5/standalone/initialization/notables.activiti.cfg.xml")
                .setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_CREATE_DROP)
                .buildProcessEngine();

        // then update the version to something that is different to the library
        // version
        DbSqlSessionFactory dbSqlSessionFactory = (DbSqlSessionFactory) processEngine
                .getProcessEngineConfiguration().getSessionFactories().get(DbSqlSession.class);
        SqlSessionFactory sqlSessionFactory = dbSqlSessionFactory.getSqlSessionFactory();
        SqlSession sqlSession = sqlSessionFactory.openSession();
        boolean success = false;
        try {
            Map<String, Object> parameters = new HashMap<String, Object>();
            parameters.put("name", "schema.version");
            parameters.put("value", "25.7");
            parameters.put("revision", 1);
            parameters.put("newRevision", 2);
            sqlSession.update("updateProperty", parameters);
            success = true;
        } catch (Exception e) {
            throw new ActivitiException("couldn't update db schema version", e);
        } finally {
            if (success) {
                sqlSession.commit();
            } else {
                sqlSession.rollback();
            }
            sqlSession.close();
        }

        try {
            // now we can see what happens if when a process engine is being
            // build with a version mismatch between library and db tables
            ProcessEngineConfiguration
                    .createProcessEngineConfigurationFromResource(
                            "org/activiti5/standalone/initialization/notables.activiti.cfg.xml")
                    .setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_FALSE)
                    .buildProcessEngine();

            fail("expected exception");
        } catch (ActivitiWrongDbException e) {
            assertTextPresent("version mismatch", e.getMessage());
            assertEquals("25.7", e.getDbVersion());
            assertEquals(ProcessEngine.VERSION, e.getLibraryVersion());
        }

        // closing the original process engine to drop the db tables
        processEngine.close();
    }
}