org.activiti.test.db.ProcessEngineInitializationTest.java Source code

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Here is the source code for org.activiti.test.db.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.activiti.test.db;

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

import org.activiti.ActivitiException;
import org.activiti.ActivitiWrongDbException;
import org.activiti.DbProcessEngineBuilder;
import org.activiti.DbSchemaStrategy;
import org.activiti.ProcessEngine;
import org.activiti.impl.ProcessEngineImpl;
import org.activiti.impl.persistence.IbatisPersistenceSessionFactory;
import org.activiti.impl.persistence.PersistenceSessionFactory;
import org.activiti.test.LogInitializer;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.hamcrest.Description;
import org.junit.Rule;
import org.junit.Test;
import org.junit.internal.matchers.TypeSafeMatcher;
import org.junit.rules.ExpectedException;

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

    @Rule
    public ExpectedException exception = ExpectedException.none();

    @Rule
    public LogInitializer logInitializer = new LogInitializer();

    @Test
    public void testNoTables() {

        exception.expect(ActivitiException.class);
        exception.expectMessage(
                "no activiti tables in db.  set property db.schema.strategy=create-drop in activiti.properties for automatic schema creation");

        new DbProcessEngineBuilder().configureFromPropertiesResource("org/activiti/test/db/activiti.properties")
                .buildProcessEngine();

    }

    @Test
    public void testVersionMismatch() {
        // first create the schema
        ProcessEngineImpl processEngine = (ProcessEngineImpl) new DbProcessEngineBuilder()
                .configureFromPropertiesResource("org/activiti/test/db/activiti.properties")
                .setDbSchemaStrategy(DbSchemaStrategy.CREATE_DROP).buildProcessEngine();

        // then update the version to something that is different to the library
        // version
        PersistenceSessionFactory persistenceSessionFactory = processEngine.getPersistenceSessionFactory();
        SqlSessionFactory sqlSessionFactory = ((IbatisPersistenceSessionFactory) persistenceSessionFactory)
                .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", new Integer(1));
            parameters.put("newRevision", new Integer(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(true);
            } else {
                sqlSession.rollback(true);
            }
            sqlSession.close();
        }

        exception.expect(ActivitiWrongDbException.class);
        exception.expect(new TypeSafeMatcher<ActivitiWrongDbException>() {

            @Override
            public boolean matchesSafely(ActivitiWrongDbException e) {
                return e.getMessage().contains("version mismatch") && "25.7".equals(e.getDbVersion())
                        && ProcessEngine.VERSION == e.getLibraryVersion();
            }

            public void describeTo(Description description) {
                description.appendText("'version mismatch' with dbVersion=25.7 and libraryVersion=")
                        .appendValue(ProcessEngine.VERSION);
            }
        });

        // now we can see what happens if when a process engine is being
        // build with a version mismatch between library and db tables
        new DbProcessEngineBuilder().configureFromPropertiesResource("org/activiti/test/db/activiti.properties")
                .setDbSchemaStrategy(DbSchemaStrategy.CHECK_VERSION).buildProcessEngine();

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