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 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne.access;

import org.apache.cayenne.ObjectContext;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.exp.Expression;
import org.apache.cayenne.exp.ExpressionFactory;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.testdo.inheritance_flat.Group;
import org.apache.cayenne.testdo.inheritance_flat.Role;
import org.apache.cayenne.testdo.inheritance_flat.User;
import org.apache.cayenne.unit.di.server.CayenneProjects;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
import org.junit.Test;

import static org.junit.Assert.assertTrue;

/**
 * Special test cases per CAY-1378, CAY-1379.
 */
@UseServerRuntime(CayenneProjects.INHERITANCE_SINGLE_TABLE1_PROJECT)
public class SingleTableInheritance1IT extends ServerCase {

    @Inject
    private ObjectContext context;

    @Test
    public void testGroupActions() throws Exception {

        User user = context.newObject(User.class);
        user.setName("test_user");

        Group group1 = context.newObject(Group.class);
        group1.setName("test_group1");

        Group group2 = context.newObject(Group.class);
        group2.setName("test_group2");

        group1.addToGroupMembers(user);
        group2.addToGroupMembers(group1);

        group2.getObjectContext().commitChanges();

        // Per CAY-1379 removing user and then refetching resulted in a FFE downstream
        group1.removeFromGroupMembers(user);
        Expression exp = ExpressionFactory.matchExp(Role.ROLE_GROUPS.getName(), group2);
        SelectQuery query = new SelectQuery(Group.class, exp);
        context.performQuery(query);
        context.commitChanges();

        context.deleteObjects(group1);
        context.deleteObjects(group2);
        context.deleteObjects(user);
        context.commitChanges();
    }

    @Test
    public void testFlattenedNullifyNullifyDeleteRules() throws Exception {

        User user = context.newObject(User.class);
        user.setName("test_user");
        Group group = context.newObject(Group.class);
        group.setName("test_group");
        group.addToGroupMembers(user);
        context.commitChanges();

        context.deleteObjects(user);
        assertTrue(group.getGroupMembers().isEmpty());

        context.commitChanges();

        // here Cayenne would throw per CAY-1378 on an attempt to delete a previously
        // related transient object
        context.deleteObjects(group);
        context.commitChanges();
    }
}