1 /*
2  * Copyright (C) 2015 The Dagger Authors.
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 dagger.producers;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 import static org.junit.Assert.fail;
21 
22 import com.google.common.testing.EqualsTester;
23 import java.util.concurrent.CancellationException;
24 import java.util.concurrent.ExecutionException;
25 import org.junit.Test;
26 import org.junit.runner.RunWith;
27 import org.junit.runners.JUnit4;
28 
29 /**
30  * Tests {@link Produced}.
31  */
32 @RunWith(JUnit4.class)
33 public class ProducedTest {
successfulProduced()34   @Test public void successfulProduced() throws ExecutionException {
35     Object o = new Object();
36     assertThat(Produced.successful(5).get()).isEqualTo(5);
37     assertThat(Produced.successful("monkey").get()).isEqualTo("monkey");
38     assertThat(Produced.successful(o).get()).isSameInstanceAs(o);
39   }
40 
failedProduced()41   @Test public void failedProduced() {
42     RuntimeException cause = new RuntimeException("monkey");
43     try {
44       Produced.failed(cause).get();
45       fail();
46     } catch (ExecutionException e) {
47       assertThat(e).hasCauseThat().isSameInstanceAs(cause);
48     }
49   }
50 
producedEquivalence()51   @Test public void producedEquivalence() {
52     RuntimeException e1 = new RuntimeException("monkey");
53     RuntimeException e2 = new CancellationException();
54     new EqualsTester()
55         .addEqualityGroup(Produced.successful(132435), Produced.successful(132435))
56         .addEqualityGroup(Produced.successful("hi"), Produced.successful("hi"))
57         .addEqualityGroup(Produced.failed(e1), Produced.failed(e1))
58         .addEqualityGroup(Produced.failed(e2), Produced.failed(e2))
59         .testEquals();
60   }
61 }
62