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 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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package org.apache.cayenne.util;

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

import java.sql.SQLException;

import org.apache.cayenne.PersistenceState;
import org.apache.cayenne.access.DataContext;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.testdo.inheritance_people.Department;
import org.apache.cayenne.testdo.inheritance_people.Employee;
import org.apache.cayenne.testdo.inheritance_people.Manager;
import org.apache.cayenne.unit.di.DataChannelInterceptor;
import org.apache.cayenne.unit.di.UnitTestClosure;
import org.apache.cayenne.unit.di.server.PeopleProjectCase;
import org.junit.Test;

public class DeepMergeOperationInheritanceIT extends PeopleProjectCase {

    @Inject
    private DataContext context;

    @Inject
    private DataContext context1;

    @Inject
    protected DataChannelInterceptor queryInterceptor;

    @Test
    public void testDeepMergeExistingSubclass() {

        final Department d1 = context.newObject(Department.class);
        d1.setName("D1");

        // need to do double commit as Ashwood sorter blows on Employees/Departments
        // ordering...
        context.commitChanges();

        Employee e1 = context.newObject(Employee.class);
        e1.setName("E1");
        e1.setPersonType("EE");
        d1.addToEmployees(e1);

        Manager e2 = context.newObject(Manager.class);
        e2.setName("E2");
        e2.setPersonType("EM");
        d1.addToEmployees(e2);

        context.commitChanges();

        // need to make sure source relationship is resolved as a result of some Ashwood
        // strangeness...
        d1.getEmployees().size();

        // resolve Employees
        context1.performQuery(new SelectQuery(Employee.class));

        final DeepMergeOperation op = new DeepMergeOperation(context1);

        queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

            public void execute() {
                Department d2 = (Department) op.merge(d1);
                assertNotNull(d2);
                assertEquals(PersistenceState.COMMITTED, d2.getPersistenceState());

                for (Employee ex : d2.getEmployees()) {
                    if ("E2".equals(ex.getName())) {
                        assertTrue(ex instanceof Manager);
                    }
                    else {
                        assertFalse(ex instanceof Manager);
                    }
                }
            }
        });

    }

    @Test
    public void testDeepMergeNonExistentSubclass() throws SQLException {

        final Department d1 = context.newObject(Department.class);
        d1.setName("D1");

        // need to do double commit as Ashwood sorter blows on Employees/Departments
        // ordering...
        context.commitChanges();

        Employee e1 = context.newObject(Employee.class);
        e1.setName("E1");
        e1.setPersonType("EE");
        d1.addToEmployees(e1);

        Manager e2 = context.newObject(Manager.class);
        e2.setName("E2");
        e2.setPersonType("EM");
        d1.addToEmployees(e2);

        context.commitChanges();

        // need to make sure source relationship is resolved as a result of some Ashwood
        // strangeness...
        d1.getEmployees().size();
        final DeepMergeOperation op = new DeepMergeOperation(context1);

        queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

            public void execute() {
                Department d2 = (Department) op.merge(d1);
                assertNotNull(d2);
                assertEquals(PersistenceState.COMMITTED, d2.getPersistenceState());

                for (Employee ex : d2.getEmployees()) {
                    if ("E2".equals(ex.getName())) {
                        assertTrue(ex instanceof Manager);
                    }
                    else {
                        assertFalse(ex instanceof Manager);
                    }
                }
            }
        });
    }
}