| // Copyright 2011 Google Inc. All Rights Reserved. |
| // |
| // 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.google.enterprise.adaptor; |
| |
| import static org.junit.Assert.*; |
| |
| import org.junit.*; |
| import org.junit.rules.ExpectedException; |
| |
| import java.util.concurrent.*; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| /** |
| * Tests for {@link Watchdog}. |
| */ |
| public class WatchdogTest { |
| @Rule |
| public ExpectedException thrown = ExpectedException.none(); |
| |
| private ScheduledExecutorService executor |
| = Executors.newSingleThreadScheduledExecutor(); |
| private Watchdog watchdog; |
| |
| @After |
| public void stopExecutor() { |
| executor.shutdownNow(); |
| } |
| |
| @Test |
| public void testNullExecutor() { |
| thrown.expect(NullPointerException.class); |
| new Watchdog(null); |
| } |
| |
| @Test |
| public void testInterruption() throws InterruptedException { |
| watchdog = new Watchdog(executor); |
| watchdog.processingStarting(1); |
| try { |
| thrown.expect(InterruptedException.class); |
| Thread.sleep(100); |
| } finally { |
| watchdog.processingCompleted(); |
| } |
| } |
| |
| @Test |
| public void testDifferentThread() throws InterruptedException { |
| watchdog = new Watchdog(executor); |
| final Thread thread = Thread.currentThread(); |
| watchdog.processingStarting(1000); |
| final AtomicBoolean success = new AtomicBoolean(); |
| Thread thread2 = new Thread() { |
| @Override |
| public void run() { |
| watchdog.processingCompleted(thread); |
| watchdog.processingStarting(thread, 1000); |
| success.set(true); |
| } |
| }; |
| thread2.start(); |
| thread2.join(); |
| assertTrue(success.get()); |
| |
| watchdog.processingCompleted(); |
| } |
| |
| @Test |
| public void testNoInterruption() throws InterruptedException { |
| watchdog = new Watchdog(executor); |
| watchdog.processingStarting(5); |
| try { |
| Thread.sleep(1); |
| } finally { |
| watchdog.processingCompleted(); |
| } |
| Thread.sleep(10); |
| } |
| |
| @Test |
| public void testDoubleAdd() { |
| watchdog = new Watchdog(executor); |
| watchdog.processingStarting(1000); |
| try { |
| thrown.expect(IllegalStateException.class); |
| watchdog.processingStarting(1000); |
| } finally { |
| watchdog.processingCompleted(); |
| } |
| } |
| |
| @Test |
| public void testRemoveButNoAdd() { |
| watchdog = new Watchdog(executor); |
| thrown.expect(IllegalStateException.class); |
| watchdog.processingCompleted(); |
| } |
| |
| @Test |
| public void testDoubleRemove() { |
| watchdog = new Watchdog(executor); |
| watchdog.processingStarting(1000); |
| watchdog.processingCompleted(); |
| thrown.expect(IllegalStateException.class); |
| watchdog.processingCompleted(); |
| } |
| } |