foundation/eclipselink.core.test/src/it/java/org/eclipse/persistence/testing/tests/unitofwork/ConcurrentNewObjectTest.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.unitofwork;

import org.eclipse.persistence.internal.sessions.UnitOfWorkImpl;
import org.eclipse.persistence.testing.framework.AutoVerifyTestCase;
import org.eclipse.persistence.testing.framework.TestErrorException;
import org.eclipse.persistence.testing.framework.TestWarningException;
import org.eclipse.persistence.testing.models.employee.domain.Address;
import org.eclipse.persistence.testing.models.employee.domain.Employee;
import org.eclipse.persistence.testing.models.employee.domain.EmployeePopulator;


/**
 * <p>
 * <b>Purpose</b>: This test to veify that new objects read by one thread before that object has
 * been merged by the creating thread will not cause the merging thread to throw UOW verification exception.
 */
public class ConcurrentNewObjectTest extends AutoVerifyTestCase {

    public ConcurrentNewObjectTest() {
        super();
    }

    @Override
    public void setup() {
        if (getSession() instanceof org.eclipse.persistence.sessions.remote.RemoteSession) {
            throw new TestWarningException("Test not supported in remote, it uses internal jta callbacks.");
        }
        getAbstractSession().beginTransaction();
        getSession().getIdentityMapAccessor().initializeAllIdentityMaps();
    }

    @Override
    protected void test() {
        UnitOfWorkImpl unitOfWork1 = (UnitOfWorkImpl)getSession().acquireUnitOfWork();
        Address address = new EmployeePopulator().addressExample1();
        Employee originalClone = (Employee)unitOfWork1.readObject(Employee.class);
        originalClone.setAddress(address);
        unitOfWork1.issueSQLbeforeCompletion();
        // Simulate use of the JTS
        unitOfWork1.setPendingMerge();
        address = (Address)getSession().readObject(address);
        try {
            unitOfWork1.mergeClonesAfterCompletion();
        } catch (Exception exception) {
            throw new TestErrorException("New Object was read into Cache before Merged by creator, creator threw error");
        }
    }

    @Override
    public void reset() {
        getAbstractSession().commitTransaction();
        getSession().getIdentityMapAccessor().initializeAllIdentityMaps();
    }
}