1 /* 2 * Copyright (C) 2016 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 package com.android.settings.utils; 17 18 19 import com.android.settings.TestConfig; 20 import org.junit.Test; 21 import org.junit.runner.RunWith; 22 import org.robolectric.RobolectricTestRunner; 23 import org.robolectric.annotation.Config; 24 25 import static com.google.common.truth.Truth.assertThat; 26 import static org.junit.Assert.fail; 27 28 @RunWith(RobolectricTestRunner.class) 29 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION) 30 public class ThreadUtilsTest { 31 32 @Test testMainThread()33 public void testMainThread() throws InterruptedException { 34 assertThat(ThreadUtils.isMainThread()).isTrue(); 35 Thread background = new Thread(new Runnable() { 36 public void run() { 37 assertThat(ThreadUtils.isMainThread()).isFalse(); 38 } 39 }); 40 background.start(); 41 background.join(); 42 } 43 44 @Test testEnsureMainThread()45 public void testEnsureMainThread() throws InterruptedException { 46 ThreadUtils.ensureMainThread(); 47 Thread background = new Thread(new Runnable() { 48 public void run() { 49 try { 50 ThreadUtils.ensureMainThread(); 51 fail("Should not pass ensureMainThread in a background thread"); 52 } catch (RuntimeException e) { 53 } 54 } 55 }); 56 background.start(); 57 background.join(); 58 } 59 } 60