/*
 * Copyright (C) 2005-2011 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */
package org.alfresco.util.schemacomp;


import static org.junit.Assert.fail;

import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;

import org.alfresco.repo.domain.schema.SchemaBootstrap;
import org.alfresco.test_category.OwnJVMTestsCategory;
import org.alfresco.util.ApplicationContextHelper;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * Test intended for use in the continuous integration system that checks whether the
 * schema reference file (for whichever database the tests are being run against)
 * is in sync with the actual schema. If the test fails (and the schema comparator is
 * in working order) then the most likely cause is that a new up-to-date schema reference file
 * needs to be created.
 * <p>
 * Schema reference files are created using the {@link DbToXML} tool.
 * <p>
 * Note: if no reference file exists then the test will pass, this is to allow piece meal
 * introduction of schmea reference files.
 * 
 * @see DbToXML
 * @author Matt Ward
 */
@Category(OwnJVMTestsCategory.class)
public class SchemaReferenceFileTest
{
    private ClassPathXmlApplicationContext ctx;
    private SchemaBootstrap schemaBootstrap;
    
    @Before
    public void setUp() throws Exception
    {
        ctx = (ClassPathXmlApplicationContext) ApplicationContextHelper.getApplicationContext();    
        schemaBootstrap = (SchemaBootstrap) ctx.getBean("schemaBootstrap");
    }
    
    @After
    public void tearDown()
    {
        ctx.close();
    }

    @Test
    public void checkReferenceFile()
    {
        ByteArrayOutputStream buff = new ByteArrayOutputStream();
        PrintWriter out = new PrintWriter(buff);
        int numProblems = schemaBootstrap.validateSchema(null, out);
        out.flush();
        
        if (numProblems > 0)
        {
            fail(buff.toString());
        }
    }
}