/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.test.collection.bag;

import java.util.ArrayList;

import org.hibernate.Session;
import org.hibernate.collection.internal.PersistentBag;

import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

/**
 * Tests related to operations on a PersistentBag.
 *
 * @author Steve Ebersole
 */
public class PersistentBagTest extends BaseCoreFunctionalTestCase {
	@Override
	public String[] getMappings() {
		return new String[] { "collection/bag/Mappings.hbm.xml" };
	}

	@Test
	public void testWriteMethodDirtying() {
		BagOwner parent = new BagOwner( "root" );
		BagOwner child = new BagOwner( "c1" );
		parent.getChildren().add( child );
		child.setParent( parent );
		BagOwner otherChild = new BagOwner( "c2" );

		Session session = openSession();
		session.beginTransaction();
		session.save( parent );
		session.flush();
		// at this point, the list on parent has now been replaced with a PersistentBag...
		PersistentBag children = ( PersistentBag ) parent.getChildren();

		assertFalse( children.remove( otherChild ) );
		assertFalse( children.isDirty() );

		ArrayList otherCollection = new ArrayList();
		otherCollection.add( child );
		assertFalse( children.retainAll( otherCollection ) );
		assertFalse( children.isDirty() );

		otherCollection = new ArrayList();
		otherCollection.add( otherChild );
		assertFalse( children.removeAll( otherCollection ) );
		assertFalse( children.isDirty() );

		children.clear();
		session.delete( child );
		assertTrue( children.isDirty() );

		session.flush();

		children.clear();
		assertFalse( children.isDirty() );

		session.delete( parent );
		session.getTransaction().commit();
		session.close();
	}

	@Test
	public void testMergePersistentEntityWithNewOneToManyElements() {
		Order order = new Order();

		Session s = openSession();
		s.getTransaction().begin();
		s.persist( order );
		s.getTransaction().commit();
		s.close();

		s = openSession();
		s.getTransaction().begin();
		order = s.get( Order.class, order.getId() );
		Item item1 = new Item();
		item1.setName( "i1" );
		Item item2 = new Item();
		item2.setName( "i2" );
		order.addItem( item1 );
		order.addItem( item2 );
		order = (Order) s.merge( order );
		//s.flush();
		s.getTransaction().commit();
		s.close();

		s = openSession();
		s.getTransaction().begin();
		order = s.get( Order.class, order.getId() );
		assertEquals( 2, order.getItems().size() );
		s.delete( order );
		s.getTransaction().commit();
		s.close();
	}
}