001/*****************************************************************************
002 * Copyright (C) PicoContainer Organization. All rights reserved.            *
003 * ------------------------------------------------------------------------- *
004 * The software in this package is published under the terms of the BSD      *
005 * style license a copy of which has been included with this distribution in *
006 * the LICENSE.txt file.                                                     *
007 *                                                                           *
008 * Original code by                                                          *
009 *****************************************************************************/
010package org.picocontainer.tck;
011
012import static org.junit.Assert.assertEquals;
013import static org.junit.Assert.assertNotNull;
014import static org.junit.Assert.assertSame;
015
016import org.junit.Test;
017import org.picocontainer.Characteristics;
018import org.picocontainer.MutablePicoContainer;
019import org.picocontainer.PicoException;
020
021/**
022 * @author Aslak Hellesøy
023 */
024public abstract class AbstractLazyInstantiationTest {
025
026    protected abstract MutablePicoContainer createPicoContainer();
027
028    public static class Kilroy {
029        public Kilroy(Havana havana) {
030            havana.graffiti("Kilroy was here");
031        }
032    }
033
034    public static class Havana {
035        public String paint = "Clean wall";
036
037        public void graffiti(String paint) {
038            this.paint = paint;
039        }
040    }
041
042    @Test public void testLazyInstantiation() throws PicoException {
043        MutablePicoContainer pico = createPicoContainer();
044
045        pico.as(Characteristics.CACHE).addComponent(Kilroy.class);
046        pico.as(Characteristics.CACHE).addComponent(Havana.class);
047
048        assertSame(pico.getComponent(Havana.class), pico.getComponent(Havana.class));
049        assertNotNull(pico.getComponent(Havana.class));
050        assertEquals("Clean wall", pico.getComponent(Havana.class).paint);
051        assertNotNull(pico.getComponent(Kilroy.class));
052        assertEquals("Kilroy was here", pico.getComponent(Havana.class).paint);
053    }
054}