1 /*
2  * Copyright (C) 2017 The Android Open Source Project
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 androidx.arch.core.executor.testing;
18 
19 import static org.junit.Assert.assertTrue;
20 
21 import androidx.arch.core.executor.ArchTaskExecutor;
22 
23 import org.junit.Rule;
24 import org.junit.Test;
25 import org.junit.runner.RunWith;
26 import org.junit.runners.JUnit4;
27 
28 import java.util.concurrent.Callable;
29 import java.util.concurrent.ExecutionException;
30 import java.util.concurrent.FutureTask;
31 import java.util.concurrent.TimeUnit;
32 import java.util.concurrent.TimeoutException;
33 
34 @RunWith(JUnit4.class)
35 public class InstantTaskExecutorRuleTest {
36     @Rule
37     public InstantTaskExecutorRule mInstantTaskExecutorRule = new InstantTaskExecutorRule();
38 
39     @Test
executeOnMain()40     public void executeOnMain() throws ExecutionException, InterruptedException, TimeoutException {
41         final Thread current = Thread.currentThread();
42         FutureTask<Void> check = new FutureTask<>(new Callable<Void>() {
43             @Override
44             public Void call() throws Exception {
45                 assertTrue(Thread.currentThread() == current);
46                 return null;
47             }
48         });
49         ArchTaskExecutor.getInstance().executeOnMainThread(check);
50         check.get(1, TimeUnit.SECONDS);
51     }
52 
53     @Test
executeOnIO()54     public void executeOnIO() throws ExecutionException, InterruptedException, TimeoutException {
55         final Thread current = Thread.currentThread();
56         FutureTask<Void> check = new FutureTask<>(new Callable<Void>() {
57             @Override
58             public Void call() throws Exception {
59                 assertTrue(Thread.currentThread() == current);
60                 return null;
61             }
62         });
63         ArchTaskExecutor.getInstance().executeOnDiskIO(check);
64         check.get(1, TimeUnit.SECONDS);
65     }
66 }
67