1 /*
2  * Copyright (C) 2015 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.jdk8;
18 
19 import com.google.inject.AbstractModule;
20 import com.google.inject.Guice;
21 import com.google.inject.Inject;
22 import com.google.inject.Injector;
23 import com.google.inject.assistedinject.Assisted;
24 import com.google.inject.assistedinject.FactoryModuleBuilder;
25 import junit.framework.TestCase;
26 
27 /**
28  * Test static methods in interfaces.
29  *
30  * @author tavianator@tavianator.com (Tavian Barnes)
31  */
32 public class StaticInterfaceMethodsTest extends TestCase {
33 
34   private static class Thing {
35     final int i;
36 
37     @Inject
Thing(@ssisted int i)38     Thing(@Assisted int i) {
39       this.i = i;
40     }
41   }
42 
43   private interface Factory {
create(int i)44     Thing create(int i);
45 
getDefault()46     static Factory getDefault() {
47       return Thing::new;
48     }
49   }
50 
testAssistedInjection()51   public void testAssistedInjection() {
52     Injector injector =
53         Guice.createInjector(
54             new AbstractModule() {
55               @Override
56               protected void configure() {
57                 install(new FactoryModuleBuilder().build(Factory.class));
58               }
59             });
60     Factory factory = injector.getInstance(Factory.class);
61     assertEquals(1, factory.create(1).i);
62   }
63 }
64