| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.settingslib.utils; |
| |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import static org.junit.Assert.fail; |
| |
| import com.android.settingslib.SettingsLibRobolectricTestRunner; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.robolectric.shadows.ShadowLooper; |
| |
| @RunWith(SettingsLibRobolectricTestRunner.class) |
| public class ThreadUtilsTest { |
| |
| @Test |
| public void testMainThread() throws InterruptedException { |
| assertThat(ThreadUtils.isMainThread()).isTrue(); |
| Thread background = new Thread(new Runnable() { |
| public void run() { |
| assertThat(ThreadUtils.isMainThread()).isFalse(); |
| } |
| }); |
| background.start(); |
| background.join(); |
| } |
| |
| @Test |
| public void testEnsureMainThread() throws InterruptedException { |
| ThreadUtils.ensureMainThread(); |
| Thread background = new Thread(new Runnable() { |
| public void run() { |
| try { |
| ThreadUtils.ensureMainThread(); |
| fail("Should not pass ensureMainThread in a background thread"); |
| } catch (RuntimeException e) { |
| } |
| } |
| }); |
| background.start(); |
| background.join(); |
| } |
| |
| @Test |
| public void testPostOnMainThread_shouldRunOnMainTread() throws Exception { |
| TestRunnable cr = new TestRunnable(); |
| ShadowLooper.pauseMainLooper(); |
| ThreadUtils.postOnMainThread(cr); |
| assertThat(cr.called).isFalse(); |
| |
| ShadowLooper.runUiThreadTasks(); |
| assertThat(cr.called).isTrue(); |
| assertThat(cr.onUiThread).isTrue(); |
| } |
| |
| private static class TestRunnable implements Runnable { |
| volatile boolean called; |
| volatile boolean onUiThread; |
| |
| public void run() { |
| this.called = true; |
| this.onUiThread = ThreadUtils.isMainThread(); |
| } |
| } |
| |
| } |