| /** |
| * 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 junit.framework.TestCase; |
| |
| /** |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| public class GeneratorTest extends TestCase { |
| |
| public void testFooGenerator() throws ContainerCreationException { |
| ContainerBuilder cb = new ContainerBuilder(); |
| cb.bind(Foo.class).toGenerator(FooGenerator.class); |
| Container c = cb.create(); |
| |
| Foo a = c.getInstance(Foo.class); |
| Foo b = c.getInstance(Foo.class); |
| |
| assertEquals(0, a.i); |
| assertEquals(0, b.i); |
| assertNotNull(a.bar); |
| assertNotNull(b.bar); |
| assertNotSame(a.bar, b.bar); |
| } |
| |
| public void testContainerScopedFooGenerator() |
| throws ContainerCreationException { |
| ContainerBuilder cb = new ContainerBuilder(); |
| cb.bind(Foo.class).toGenerator(ContainerScopedFooGenerator.class); |
| Container c = cb.create(); |
| |
| Foo a = c.getInstance(Foo.class); |
| Foo b = c.getInstance(Foo.class); |
| |
| assertEquals(0, a.i); |
| assertEquals(1, b.i); |
| assertNotNull(a.bar); |
| assertNotNull(b.bar); |
| assertSame(a.bar, b.bar); |
| } |
| |
| static class Bar {} |
| |
| static class Foo { |
| final Bar bar; |
| final int i; |
| |
| Foo(Bar bar, int i) { |
| this.bar = bar; |
| this.i = i; |
| } |
| } |
| |
| static class FooGenerator implements Generator<Foo> { |
| |
| final Bar bar; |
| int count = 0; |
| |
| @Inject |
| public FooGenerator(Bar bar) { |
| this.bar = bar; |
| } |
| |
| public Foo generate(Context context) { |
| assertNull(context.getMember()); |
| assertEquals(-1, context.getParameterIndex()); |
| assertEquals(Foo.class, context.getKey().getRawType()); |
| return new Foo(this.bar, count++); |
| } |
| } |
| |
| @ContainerScoped |
| static class ContainerScopedFooGenerator implements Generator<Foo> { |
| |
| final Bar bar; |
| int count = 0; |
| |
| @Inject |
| public ContainerScopedFooGenerator(Bar bar) { |
| this.bar = bar; |
| } |
| |
| public Foo generate(Context context) { |
| assertNull(context.getMember()); |
| assertEquals(-1, context.getParameterIndex()); |
| assertEquals(Foo.class, context.getKey().getRawType()); |
| return new Foo(this.bar, count++); |
| } |
| } |
| } |