/*****************************************************************************
* 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. *
* *
* Idea by Rachel Davies, Original code by Aslak Hellesoy and Paul Hammant *
*****************************************************************************/
package org.picocontainer.defaults;
import junit.framework.TestCase;
import org.picocontainer.MutablePicoContainer;
import org.picocontainer.PicoInitializationException;
import org.picocontainer.PicoRegistrationException;
import org.picocontainer.testmodel.DependsOnTouchable;
import org.picocontainer.testmodel.SimpleTouchable;
public class DelegatingPicoContainerTestCase extends TestCase {
private MutablePicoContainer parent;
private DefaultPicoContainer child;
public void setUp() throws PicoRegistrationException, PicoInitializationException {
parent = new DefaultPicoContainer();
child = new DefaultPicoContainer(parent);
}
public void testChildGetsFromParent() {
parent.registerComponentImplementation(SimpleTouchable.class);
child.registerComponentImplementation(DependsOnTouchable.class);
DependsOnTouchable dependsOnTouchable = (DependsOnTouchable) child.getComponentInstance(DependsOnTouchable.class);
assertNotNull(dependsOnTouchable);
}
public void testParentDoesntGetFromChild() {
child.registerComponentImplementation(SimpleTouchable.class);
parent.registerComponentImplementation(DependsOnTouchable.class);
try {
parent.getComponentInstance(DependsOnTouchable.class);
fail();
} catch (UnsatisfiableDependenciesException e) {
}
}
public void testChildOverridesParent() {
parent.registerComponentImplementation(SimpleTouchable.class);
child.registerComponentImplementation(SimpleTouchable.class);
SimpleTouchable parentTouchable = (SimpleTouchable) parent.getComponentInstance(SimpleTouchable.class);
SimpleTouchable childTouchable = (SimpleTouchable) child.getComponentInstance(SimpleTouchable.class);
assertEquals(1, child.getComponentInstances().size());
assertNotSame(parentTouchable, childTouchable);
}
}