HeirarchyDomainClassTests.java

/* Copyright 2004-2005 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.grails.core;

import groovy.lang.GroovyClassLoader;
import junit.framework.TestCase;

import grails.core.DefaultGrailsApplication;
import org.grails.core.artefact.DomainClassArtefactHandler;
import grails.core.GrailsApplication;
import grails.core.GrailsDomainClass;
import org.grails.core.support.MappingContextBuilder;

/**
 * Tests that class heirarchies get calculated appropriately.
 *
 * @author Graeme Rocher
 * @since 0.2
 */
public class HeirarchyDomainClassTests extends TestCase {

    public void testClassHeirarchy() throws Exception {
        GroovyClassLoader gcl = new GroovyClassLoader();

        gcl.parseClass("@grails.persistence.Entity class Super { Long id;Long version;}\n" +
                       "class Sub extends Super { }\n" +
                       "class Sub2 extends Sub { }");

        GrailsApplication ga = new DefaultGrailsApplication(gcl.getLoadedClasses(),gcl);
        ga.initialise();
        new MappingContextBuilder(ga).build(gcl.getLoadedClasses());

        GrailsDomainClass gdc1 = (GrailsDomainClass) ga.getArtefact(DomainClassArtefactHandler.TYPE, "Super");
        assertNotNull(gdc1);
        assertTrue(gdc1.isRoot());
        assertEquals(2,gdc1.getSubClasses().size());
        assertFalse(gdc1.getPropertyByName("id").isInherited());

        GrailsDomainClass gdc2 = (GrailsDomainClass) ga.getArtefact(DomainClassArtefactHandler.TYPE, "Sub");

        assertFalse(gdc2.isRoot());
        assertEquals(1,gdc2.getSubClasses().size());
        assertTrue(gdc2.getPropertyByName("id").isInherited());

        GrailsDomainClass gdc3 = (GrailsDomainClass) ga.getArtefact(DomainClassArtefactHandler.TYPE, "Sub2");

        assertFalse(gdc3.isRoot());
        assertEquals(0,gdc3.getSubClasses().size());
        assertTrue(gdc3.getPropertyByName("id").isInherited());
    }
}