org.picocontainer.behaviors.CircularTestCase Maven / Gradle / Ivy
package org.picocontainer.behaviors;
import org.junit.Test;
import static org.junit.Assert.assertNotNull;
import org.picocontainer.DefaultPicoContainer;
import org.picocontainer.Characteristics;
import org.picocontainer.ComponentAdapter;
import org.picocontainer.injectors.SetterInjection;import static junit.framework.Assert.assertEquals;
public class CircularTestCase {
public static interface IFish {
IWater getWater();
}
public static class Fish implements IFish {
IWater water;
public void setWater(IWater water) {
this.water = water;
}
public IWater getWater() {
return water;
}
}
public static interface IWater {
IFish getFish();
}
public static class Water implements IWater {
IFish fish;
public void setFish(IFish fish) {
this.fish = fish;
}
public IFish getFish() {
return fish;
}
}
@Test
public void circularIsPossibleWithACharacteristic() {
DefaultPicoContainer pico = new DefaultPicoContainer(new Caching().wrap(new SetterInjection()));
pico.as(Characteristics.ENABLE_CIRCULAR).addComponent(IFish.class, Fish.class);
pico.addComponent(IWater.class, Water.class);
IWater water = pico.getComponent(IWater.class);
IFish fish = pico.getComponent(IFish.class);
assertNotNull(water.getFish());
assertNotNull(fish.getWater());
}
@Test
public void enableCircularCharacteristicIsRedundantForImplementationHiding() {
DefaultPicoContainer pico = new DefaultPicoContainer(new ImplementationHiding().wrap(new SetterInjection()));
pico.as(Characteristics.ENABLE_CIRCULAR).addComponent(IFish.class, Fish.class);
pico.addComponent(IWater.class, Water.class);
IWater water = pico.getComponent(IWater.class);
IFish fish = pico.getComponent(IFish.class);
assertNotNull(water.getFish());
assertNotNull(fish.getWater());
ComponentAdapter ca = pico.getComponentAdapter(IFish.class);
assertEquals("Hidden:SetterInjector-" + IFish.class,ca.toString());
}
}