| /** |
| * 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 com.google.inject.Asserts.assertContains; |
| import static java.lang.annotation.RetentionPolicy.RUNTIME; |
| |
| import junit.framework.TestCase; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.annotation.Retention; |
| |
| /** |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| public class BindingAnnotationTest extends TestCase { |
| |
| public void testAnnotationWithValueMatchesKeyWithTypeOnly() throws CreationException { |
| Injector c = Guice.createInjector(new AbstractModule() { |
| @Override |
| protected void configure() { |
| bindConstant().annotatedWith(Blue.class).to("foo"); |
| bind(BlueFoo.class); |
| } |
| }); |
| |
| BlueFoo foo = c.getInstance(BlueFoo.class); |
| |
| assertEquals("foo", foo.s); |
| } |
| |
| public void testRequireExactAnnotationsDisablesFallback() { |
| try { |
| Guice.createInjector(new AbstractModule() { |
| @Override |
| protected void configure() { |
| binder().requireExactBindingAnnotations(); |
| bindConstant().annotatedWith(Blue.class).to("foo"); |
| bind(BlueFoo.class); |
| } |
| }); |
| fail(); |
| } catch (CreationException expected) { |
| assertContains(expected.getMessage(), "No implementation for java.lang.String annotated with", |
| "BindingAnnotationTest$Blue(value=5) was bound", |
| "at " + BindingAnnotationTest.class.getName(), ".configure(BindingAnnotationTest.java:"); |
| } |
| } |
| |
| public void testRequireExactAnnotationsDoesntBreakIfDefaultsExist() { |
| Guice.createInjector(new AbstractModule() { |
| @Override |
| protected void configure() { |
| binder().requireExactBindingAnnotations(); |
| bindConstant().annotatedWith(Red.class).to("foo"); |
| bind(RedFoo.class); |
| } |
| }).getInstance(RedFoo.class); |
| } |
| |
| public void testRequireExactAnnotationsRequireAllOptionals() { |
| try { |
| Guice.createInjector(new AbstractModule() { |
| @Override |
| protected void configure() { |
| binder().requireExactBindingAnnotations(); |
| bindConstant().annotatedWith(Color.class).to("foo"); |
| bind(ColorFoo.class); |
| } |
| }); |
| fail(); |
| } catch (CreationException expected) { |
| assertContains(expected.getMessage(), "No implementation for java.lang.String annotated with", |
| "BindingAnnotationTest$Color", |
| "at " + BindingAnnotationTest.class.getName(), ".configure(BindingAnnotationTest.java:"); |
| } |
| } |
| |
| public void testAnnotationWithValueThatDoesntMatch() { |
| try { |
| Guice.createInjector(new AbstractModule() { |
| @Override |
| protected void configure() { |
| bindConstant().annotatedWith(createBlue(6)).to("six"); |
| bind(String.class).toInstance("bar"); |
| bind(BlueFoo.class); |
| } |
| }); |
| fail(); |
| } catch (CreationException expected) { |
| assertContains(expected.getMessage(), "No implementation for java.lang.String annotated with", |
| "BindingAnnotationTest$Blue(value=5) was bound", |
| "at " + BindingAnnotationTest.class.getName(), ".configure(BindingAnnotationTest.java:"); |
| } |
| } |
| |
| static class BlueFoo { |
| @Inject @Blue(5) String s; |
| } |
| |
| static class RedFoo { |
| @Inject @Red String s; |
| } |
| |
| static class ColorFoo { |
| @Inject @Color(b=2) String s; |
| } |
| |
| @Retention(RUNTIME) |
| @BindingAnnotation |
| @interface Blue { |
| int value(); |
| } |
| |
| @Retention(RUNTIME) |
| @BindingAnnotation |
| @interface Red { |
| int r() default 42; |
| int g() default 42; |
| int b() default 42; |
| } |
| |
| @Retention(RUNTIME) |
| @BindingAnnotation |
| @interface Color { |
| int r() default 0; |
| int g() default 0; |
| int b(); |
| } |
| |
| public Blue createBlue(final int value) { |
| return new Blue() { |
| public int value() { |
| return value; |
| } |
| |
| public Class<? extends Annotation> annotationType() { |
| return Blue.class; |
| } |
| |
| @Override public boolean equals(Object o) { |
| return o instanceof Blue |
| && ((Blue) o).value() == value; |
| } |
| |
| @Override public int hashCode() { |
| return 127 * "value".hashCode() ^ value; |
| } |
| }; |
| } |
| } |