foundation/eclipselink.core.test/src/it/java/org/eclipse/persistence/testing/tests/aggregate/AggregateCollectionClearTest.java

/*
 * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.testing.tests.aggregate;

import org.eclipse.persistence.testing.framework.*;
import org.eclipse.persistence.sessions.*;

public class AggregateCollectionClearTest extends TransactionalTestCase {
    public Object object;
    public Class<?> cls;

    public AggregateCollectionClearTest(Class<?> cls) {
        this.cls = cls;
        setName(getName() + AgentBuilderHelper.getNameInBrackets(cls));
        setDescription("Verifies that when aggregate collections get cleared that the changes are merged.  CR 3013");
    }

    @Override
    public void setup() {
        super.setup();
        java.util.Vector objects = getSession().readAllObjects(cls);
        int index = 0;
        while ((index < objects.size()) && ((object == null) || (AgentBuilderHelper.getCustomers(object).get(0) == null))) {
            object = objects.get(index);
            ++index;
        }
    }

    @Override
    public void test() {
        UnitOfWork uow = getSession().acquireUnitOfWork();
        Object objectClone = uow.readObject(object);
        AgentBuilderHelper.getCustomers(objectClone).clear();
        uow.commit();
    }

    @Override
    public void verify() {
        Object object1 = getSession().readObject(object);
        if (!AgentBuilderHelper.getCustomers(object1).isEmpty()) {
            throw new TestErrorException("Did not merge change");
        }
    }

    @Override
    public void reset() {
        super.reset();
    }
}