org.picocontainer.defaults.issues.Issue0342TestCase Maven / Gradle / Ivy
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* 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 *
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* Original code by *
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package org.picocontainer.defaults.issues;
import static org.junit.Assert.fail;
import static org.junit.Assert.assertNotNull;
import org.junit.Test;
import org.junit.Assert;
import org.picocontainer.DefaultPicoContainer;
import org.picocontainer.MutablePicoContainer;
import org.picocontainer.injectors.AbstractInjector;
public final class Issue0342TestCase {
interface Interface {
}
interface SubInterface extends Interface {
}
public static class Generic {
private final I iface;
public Generic(final I iface) {
this.iface = iface;
}
}
public static class Implementation implements Interface {
}
public static class SubImplementation implements SubInterface {
}
@Test
public void testNotTheBug() {
//hard coded instantitation
Generic generic1 = new Generic(new Implementation());
Assert.assertNotNull(generic1);
Generic generic2 = new Generic(new SubImplementation());
Assert.assertNotNull(generic2);
}
@Test
public void testTheBug() {
//using picocontainer
DefaultPicoContainer container = new DefaultPicoContainer();
container.addComponent(Implementation.class);
container.addComponent(Generic.class);
Generic result = container.getComponent(Generic.class); // fails here.
Assert.assertNotNull(result);
Assert.assertNotNull(result.iface);
}
@Test
public void testTheBug2() {
DefaultPicoContainer container = new DefaultPicoContainer();
container.addComponent(SubImplementation.class);
container.addComponent(Generic.class);
//should be Generic but requires unsafe cast
Generic result2 = container.getComponent(Generic.class); // fails here
Assert.assertNotNull(result2);
Assert.assertNotNull(result2.iface);
}
}