CAY_743Test.java

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package org.apache.cayenne.unit.jira;

import org.apache.cayenne.access.DataDomain;
import org.apache.cayenne.configuration.server.ServerModule;
import org.apache.cayenne.di.DIBootstrap;
import org.apache.cayenne.di.Injector;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.map.ObjEntity;
import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;

public class CAY_743Test {

    @Test
    public void testLoad2MapsWithCrossMapInheritance() throws Exception {

        Injector injector = DIBootstrap.createInjector(new ServerModule(
                "cay743/cayenne-domain.xml"));

        try {
            DataDomain domain = injector.getInstance(DataDomain.class);
            assertEquals(2, domain.getDataMaps().size());

            DataMap m1 = domain.getDataMap("map1");
            DataMap m2 = domain.getDataMap("map2");

            ObjEntity oe11 = m1.getObjEntity("Entity11");
            ObjEntity oe12 = m1.getObjEntity("Entity12");

            ObjEntity oe21 = m2.getObjEntity("Entity21");
            ObjEntity oe22 = m2.getObjEntity("Entity22");

            // this causes StackOverflow per CAY-743
            ObjEntity oe21Super = oe21.getSuperEntity();
            ObjEntity oe12Super = oe12.getSuperEntity();

            assertSame(oe12Super, oe22);
            assertSame(oe21Super, oe11);
        }
        finally {
            injector.shutdown();
        }
    }
}