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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.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import com.google.inject.name.Named;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import junit.framework.TestCase;
/** @author crazybob@google.com (Bob Lee) */
public class BoundInstanceInjectionTest extends TestCase {
public void testInstancesAreInjected() throws CreationException {
final O o = new O();
Injector injector =
Guice.createInjector(
new AbstractModule() {
@Override
protected void configure() {
bind(O.class).toInstance(o);
bind(int.class).toInstance(5);
}
});
assertEquals(5, o.fromMethod);
}
static class O {
int fromMethod;
@Inject
void setInt(int i) {
this.fromMethod = i;
}
}
public void testProvidersAreInjected() throws CreationException {
Injector injector =
Guice.createInjector(
new AbstractModule() {
@Override
protected void configure() {
bind(O.class)
.toProvider(
new Provider<O>() {
@Inject int i;
@Override
public O get() {
O o = new O();
o.setInt(i);
return o;
}
});
bind(int.class).toInstance(5);
}
});
assertEquals(5, injector.getInstance(O.class).fromMethod);
}
public void testMalformedInstance() {
try {
Guice.createInjector(
new AbstractModule() {
@Override
protected void configure() {
bind(Object.class).toInstance(new MalformedInjectable());
}
});
fail();
} catch (CreationException expected) {
Asserts.assertContains(
expected.getMessage(),
"BoundInstanceInjectionTest$MalformedInjectable.doublyAnnotated() has more than one ",
"annotation annotated with @BindingAnnotation: ",
"Named and BoundInstanceInjectionTest$Another");
}
}
public void testMalformedProvider() {
try {
Guice.createInjector(
new AbstractModule() {
@Override
protected void configure() {
bind(String.class).toProvider(new MalformedProvider());
}
});
fail();
} catch (CreationException expected) {
Asserts.assertContains(
expected.getMessage(),
"BoundInstanceInjectionTest$MalformedProvider.doublyAnnotated() has more than one ",
"annotation annotated with @BindingAnnotation: ",
"Named and BoundInstanceInjectionTest$Another");
}
}
static class MalformedInjectable {
@Inject
void doublyAnnotated(@Named("a") @Another String unused) {}
}
static class MalformedProvider implements Provider<String> {
@Inject
void doublyAnnotated(@Named("a") @Another String s) {}
@Override
public String get() {
return "a";
}
}
@BindingAnnotation
@Target({FIELD, PARAMETER, METHOD})
@Retention(RUNTIME)
public @interface Another {}
}
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