/*****************************************************************************
* Copyright (C) PicoContainer Organization. All rights reserved. *
* ------------------------------------------------------------------------- *
* The software in this package is published under the terms of the BSD *
* style license a copy of which has been included with this distribution in *
* the LICENSE.txt file. *
* *
* Original code by *
*****************************************************************************/
package org.picocontainer.defaults;
import junit.framework.TestCase;
import org.picocontainer.Parameter;
import org.picocontainer.testmodel.DecoratedTouchable;
import org.picocontainer.testmodel.SimpleTouchable;
import org.picocontainer.testmodel.Touchable;
import java.util.Collections;
/**
* @author Thomas Heller
* @author Aslak Hellesøy
* @version $Revision: 1307 $
*/
public class ComponentKeysTestCase extends TestCase {
public void testComponensRegisteredWithClassKeyTakePrecedenceOverOthersWhenThereAreMultipleImplementations() throws Exception {
DefaultPicoContainer pico = new DefaultPicoContainer();
pico.registerComponentImplementation("default", SimpleTouchable.class);
/**
* By using a class as key, this should take precedence over the other Touchable
*/
pico.registerComponentImplementation(Touchable.class, DecoratedTouchable.class, new Parameter[]{
new ComponentParameter("default")
});
Touchable touchable = (Touchable) pico.getComponentInstanceOfType(Touchable.class);
assertEquals(DecoratedTouchable.class, touchable.getClass());
}
public void testComponentAdapterResolutionIsFirstLookedForByClassKeyToTheTopOfTheContainerHierarchy() {
DefaultPicoContainer pico = new DefaultPicoContainer();
pico.registerComponentImplementation("default", SimpleTouchable.class);
// Use the List variant instead, so we get better test coverage.
pico.registerComponentImplementation(Touchable.class, DecoratedTouchable.class, Collections.singletonList(new ComponentParameter("default")));
DefaultPicoContainer grandChild = new DefaultPicoContainer(new DefaultPicoContainer(new DefaultPicoContainer(pico)));
Touchable touchable = (Touchable) grandChild.getComponentInstanceOfType(Touchable.class);
assertEquals(DecoratedTouchable.class, touchable.getClass());
}
}