01: /**
02: * Copyright (C) 2006 Google Inc.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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: */package com.google.inject;
16:
17: import junit.framework.TestCase;
18:
19: /**
20: * @author crazybob@google.com (Bob Lee)
21: */
22: public class ProviderInjectionTest extends TestCase {
23:
24: public void testProviderInjection() throws CreationException {
25: BinderImpl builder = new BinderImpl();
26:
27: builder.bind(Bar.class);
28: builder.bind(SampleSingleton.class).in(Scopes.SINGLETON);
29:
30: Injector injector = builder.createInjector();
31:
32: Foo foo = injector.getInstance(Foo.class);
33:
34: Bar bar = foo.barProvider.get();
35: assertNotNull(bar);
36: assertNotSame(bar, foo.barProvider.get());
37:
38: SampleSingleton singleton = foo.singletonProvider.get();
39: assertNotNull(singleton);
40: assertSame(singleton, foo.singletonProvider.get());
41: }
42:
43: static class Foo {
44: @Inject
45: Provider<Bar> barProvider;
46: @Inject
47: Provider<SampleSingleton> singletonProvider;
48: }
49:
50: static class Bar {
51: }
52:
53: static class SampleSingleton {
54: }
55: }
|