| /* |
| * Copyright 2019 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 androidx.core.os; |
| |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import android.os.Handler; |
| import android.os.Looper; |
| |
| import androidx.test.ext.junit.runners.AndroidJUnit4; |
| import androidx.test.filters.SmallTest; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Tests for {@link HandlerExecutor}. |
| */ |
| @RunWith(AndroidJUnit4.class) |
| @SmallTest |
| public class HandlerExecutorTest { |
| |
| private static final long TIMEOUT_MS = 5000; |
| |
| @Test |
| public void testExecutor() throws Exception { |
| final CountDownLatch latch = new CountDownLatch(1); |
| HandlerExecutor executor = new HandlerExecutor(new Handler(Looper.getMainLooper())); |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| latch.countDown(); |
| } |
| }); |
| assertTrue(latch.await(TIMEOUT_MS, TimeUnit.MILLISECONDS)); |
| } |
| |
| @Test |
| public void testConstructor_Null() { |
| try { |
| new HandlerExecutor(null); |
| fail(); |
| } catch (NullPointerException e) { |
| // pass |
| } |
| } |
| |
| @Test |
| public void testExecute_Null() { |
| HandlerExecutor executor = new HandlerExecutor(new Handler(Looper.getMainLooper())); |
| try { |
| executor.execute(null); |
| fail(); |
| } catch (NullPointerException e) { |
| // pass |
| } |
| } |
| } |
| |