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org.picocontainer.injectors.MethodInjectionTestCase Maven / Gradle / Ivy
/*****************************************************************************
* 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.injectors;
import org.junit.Test;
import org.picocontainer.Characteristics;
import org.picocontainer.DefaultPicoContainer;
import org.picocontainer.MutablePicoContainer;
import org.picocontainer.PicoBuilder;
import org.picocontainer.annotations.Nullable;
import org.picocontainer.containers.EmptyPicoContainer;
import org.picocontainer.lifecycle.NullLifecycleStrategy;
import org.picocontainer.monitors.NullComponentMonitor;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.HashSet;
import static junit.framework.Assert.assertNull;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.picocontainer.Characteristics.USE_NAMES;
public class MethodInjectionTestCase {
public static interface IFoo {
void inject(Bar bar, Integer num);
}
public static class Foo implements IFoo {
private Bar bar;
private Integer num;
public void inject(Bar bar, Integer num) {
this.bar = bar;
this.num = num;
}
}
public static class Bar {
public Bar() {
}
}
@Test public void testMethodInjection() {
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection(), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(123);
pico.addComponent(Foo.class);
pico.addComponent(Bar.class);
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals("MethodInjector.ByMethodName[inject]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
@Test public void testMethodInjectionViaMethodDef() {
Method mthd = Foo.class.getMethods()[0];
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection(mthd), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(123);
pico.addComponent(Foo.class);
pico.addComponent(new Bar());
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals("MethodInjector.ByReflectionMethod["+mthd+"]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
@Test public void testMethodInjectionViaMethodDefViaInterface() {
Method mthd = IFoo.class.getMethods()[0];
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection(mthd), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(123);
pico.addComponent(Foo.class);
pico.addComponent(new Bar());
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals("MethodInjector.ByReflectionMethod["+mthd+"]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
@Test public void testMethodInjectionViaMethodName() {
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection("inject"), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(123);
pico.addComponent(Foo.class);
pico.addComponent(new Bar());
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals("MethodInjector.ByMethodName[inject]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
@Test public void testMethodInjectionSilentlyFailsSafeIfWrongMethodName() {
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection("sdjfhkjsdhf"), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(123);
pico.addComponent(Foo.class);
pico.addComponent(new Bar());
Foo foo = pico.getComponent(Foo.class);
assertNull(foo.bar);
assertNull(foo.num);
}
@Test public void testMethodInjectionWorksIfMethodNameOneOfAList() {
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection("sdjfhkjsdhf", "inject"), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(123);
pico.addComponent(Foo.class);
pico.addComponent(new Bar());
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals("MethodInjector.ByMethodName[sdjfhkjsdhf, inject]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
@Test public void testCompositeMethodInjectionSilentlyFailsSafeIfWrongMethodName() {
DefaultPicoContainer pico = new DefaultPicoContainer(new CompositeInjection(new ConstructorInjection(), new MethodInjection("sdjfhkjsdhf")), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(123);
pico.addComponent(Foo.class);
pico.addComponent(new Bar());
Foo foo = pico.getComponent(Foo.class);
assertNull(foo.bar);
assertNull(foo.num);
}
@Test public void testMethodInjectionViaCharacteristics() {
DefaultPicoContainer pico = new DefaultPicoContainer(new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(123);
pico.as(Characteristics.METHOD_INJECTION).addComponent(Foo.class);
pico.addComponent(Bar.class);
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals("MethodInjector.ByMethodName[inject]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
@Test public void testMethodInjectionViaAdapter() {
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection());
pico.addComponent(123);
pico.addAdapter(new MethodInjector.ByMethodName(Foo.class, Foo.class, null, new NullComponentMonitor(), new HashSet(Arrays.asList("inject")), false));
pico.addComponent(Bar.class);
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals("MethodInjector.ByMethodName[inject]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
@Test public void testMethodInjectionByBuilder() {
MutablePicoContainer pico = new PicoBuilder().withMethodInjection().build();
pico.addComponent(123);
pico.addComponent(Foo.class);
pico.addComponent(Bar.class);
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals("MethodInjector.ByMethodName[inject]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
public static class Foo2 implements IFoo {
private Bar bar;
private Integer num;
public void inject(Bar bar, @Nullable Integer num) {
this.bar = bar;
this.num = num;
}
}
@Test public void testMethodInjectionWithAllowedNullableParam() {
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection(), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.addComponent(Foo2.class);
pico.addComponent(Bar.class);
Foo2 foo = pico.getComponent(Foo2.class);
assertNotNull(foo.bar);
assertTrue(foo.num == null);
assertEquals("MethodInjector.ByMethodName[inject]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo2", pico.getComponentAdapter(Foo2.class).toString());
}
@Test public void testMethodInjectionWithDisallowedNullableParam() {
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection());
pico.addComponent(Foo.class);
pico.addComponent(Bar.class);
try {
Foo foo = pico.getComponent(Foo.class);
fail("should have barfed");
} catch (SingleMemberInjector.ParameterCannotBeNullException e) {
assertEquals("num", e.getParameterName());
assertTrue(e.getMessage().indexOf("Parameter 1") != -1);
assertTrue(e.getMessage().indexOf(Foo.class.getMethods()[0].toString()) != -1);
}
}
@Test public void testMethodInjectionWithIntegerParamCanBeconvertedFromString() {
DefaultPicoContainer pico = new DefaultPicoContainer(new MethodInjection(), new NullLifecycleStrategy(), new EmptyPicoContainer());
pico.as(USE_NAMES).addComponent(Foo.class);
pico.addComponent(Bar.class);
pico.addComponent("num", "123");
Foo foo = pico.getComponent(Foo.class);
assertNotNull(foo.bar);
assertNotNull(foo.num);
assertEquals(123, (int)foo.num);
assertEquals("MethodInjector.ByMethodName[inject]-class org.picocontainer.injectors.MethodInjectionTestCase$Foo", pico.getComponentAdapter(Foo.class).toString());
}
}
