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/*
* Copyright (C) 2006 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.inject;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import com.google.inject.spi.ElementSource;
import java.lang.annotation.Retention;
import junit.framework.TestCase;
/** @author crazybob@google.com (Bob Lee) */
public class ReflectionTest extends TestCase {
@Retention(RUNTIME)
@BindingAnnotation
@interface I {}
public void testNormalBinding() throws CreationException {
final Foo foo = new Foo();
Injector injector =
Guice.createInjector(
new AbstractModule() {
@Override
protected void configure() {
bind(Foo.class).toInstance(foo);
}
});
Binding<Foo> fooBinding = injector.getBinding(Key.get(Foo.class));
assertSame(foo, fooBinding.getProvider().get());
ElementSource source = (ElementSource) fooBinding.getSource();
assertNotNull(source.getDeclaringSource());
assertEquals(Key.get(Foo.class), fooBinding.getKey());
}
public void testConstantBinding() throws CreationException {
Injector injector =
Guice.createInjector(
new AbstractModule() {
@Override
protected void configure() {
bindConstant().annotatedWith(I.class).to(5);
}
});
Binding<?> i = injector.getBinding(Key.get(int.class, I.class));
assertEquals(5, i.getProvider().get());
ElementSource source = (ElementSource) i.getSource();
assertNotNull(source.getDeclaringSource());
assertEquals(Key.get(int.class, I.class), i.getKey());
}
public void testLinkedBinding() throws CreationException {
final Bar bar = new Bar();
Injector injector =
Guice.createInjector(
new AbstractModule() {
@Override
protected void configure() {
bind(Bar.class).toInstance(bar);
bind(Key.get(Foo.class)).to(Key.get(Bar.class));
}
});
Binding<Foo> fooBinding = injector.getBinding(Key.get(Foo.class));
assertSame(bar, fooBinding.getProvider().get());
ElementSource source = (ElementSource) fooBinding.getSource();
assertNotNull(source.getDeclaringSource());
assertEquals(Key.get(Foo.class), fooBinding.getKey());
}
static class Foo {}
static class Bar extends Foo {}
}
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