/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program 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 this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.type.descriptor.java;
import java.sql.Blob;
import java.sql.SQLException;

import org.junit.Test;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import org.hibernate.engine.jdbc.BlobProxy;

/**
 * @author Steve Ebersole
 */
public class BlobDescriptorTest extends AbstractDescriptorTest<Blob> {
	final Blob original = BlobProxy.generateProxy( new byte[] { 1, 2, 3 } );
	final Blob copy = BlobProxy.generateProxy( new byte[] { 1, 2, 3 } );
	final Blob different = BlobProxy.generateProxy( new byte[] { 3, 2, 1 } );

	public BlobDescriptorTest() {
		super( BlobTypeDescriptor.INSTANCE );
	}

	@Override
	protected Data<Blob> getTestData() {
		return new Data<Blob>( original, copy, different );
	}

	@Override
	protected boolean shouldBeMutable() {
		return false;
	}

	@Test
	@Override
	public void testEquality() {
		// blobs of the same internal value are not really comparable
		assertFalse( original == copy );
		assertTrue( BlobTypeDescriptor.INSTANCE.areEqual( original, original ) );
		assertFalse( BlobTypeDescriptor.INSTANCE.areEqual( original, copy ) );
		assertFalse( BlobTypeDescriptor.INSTANCE.areEqual( original, different ) );
	}

	@Test
	@Override
	public void testExternalization() {
		// blobs of the same internal value are not really comparable
		String externalized = BlobTypeDescriptor.INSTANCE.toString( original );
		Blob consumed = BlobTypeDescriptor.INSTANCE.fromString( externalized );
		try {
			PrimitiveByteArrayTypeDescriptor.INSTANCE.areEqual(
					DataHelper.extractBytes( original.getBinaryStream() ),
					DataHelper.extractBytes( consumed.getBinaryStream() )
			);
		}
		catch ( SQLException e ) {
			fail( "SQLException accessing blob : " + e.getMessage() );
		}
	}
}