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Java > Open Source Codes > com > google > inject > BoundInstanceInjectionTest


1 /**
2  * Copyright (C) 2006 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package com.google.inject;
18
19 import junit.framework.TestCase;
20
21 /**
22  * @author crazybob@google.com (Bob Lee)
23  */
24 public class BoundInstanceInjectionTest extends TestCase {
25
26   public void testInstancesAreInjected() throws CreationException {
27     final O o = new O();
28
29     Injector injector = Guice.createInjector(new AbstractModule() {
30       protected void configure() {
31         bind(O.class).toInstance(o);
32         bind(int.class).toInstance(5);
33       }
34     });
35
36     assertEquals(5, o.fromMethod);
37   }
38
39   static class O {
40     int fromMethod;
41     @Inject
42     void setInt(int i) {
43       this.fromMethod = i;
44     }
45   }
46
47   public void testProvidersAreInjected() throws CreationException {
48     Injector injector = Guice.createInjector(new AbstractModule() {
49       protected void configure() {
50         bind(O.class).toProvider(new Provider<O>() {
51           @Inject int i;
52           public O get() {
53             O o = new O();
54             o.setInt(i);
55             return o;
56           }
57         });
58         bind(int.class).toInstance(5);
59       }
60     });
61
62     assertEquals(5, injector.getInstance(O.class).fromMethod);
63   }
64
65 }
66
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