| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.felix.useradmin.filestore; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * Test case for {@link ResettableTimer}. |
| */ |
| public class ResettableTimerTest extends TestCase { |
| |
| private ResettableTimer m_timer; |
| private CountDownLatch m_latch; |
| |
| /** |
| * Tests that a executor service is mandatory. |
| */ |
| public void testExecutorSerivceIsMandatory() throws Exception { |
| Runnable task = createStubTask(); |
| |
| try { |
| new ResettableTimer(null, task, 10, TimeUnit.HOURS); |
| fail("IllegalArgumentException expected!"); |
| } catch (Exception e) { |
| // Ok; expected |
| } |
| } |
| |
| /** |
| * Tests that multiple calls to {@link ResettableTimer#schedule()} causes |
| * pending tasks to be cancelled. |
| */ |
| public void testScheduleCancelsPendingTasksOk() throws Exception { |
| final AtomicInteger m_counter = new AtomicInteger(0); |
| |
| Runnable task = new Runnable() { |
| public void run() { |
| m_counter.incrementAndGet(); |
| } |
| }; |
| |
| m_timer = new ResettableTimer(task, 100, TimeUnit.MILLISECONDS); |
| m_timer.schedule(); |
| |
| TimeUnit.MILLISECONDS.sleep(75); |
| |
| Future f = m_timer.schedule(); |
| f.get(); |
| |
| assertEquals(1, m_counter.get()); |
| } |
| |
| /** |
| * Test method for {@link org.apache.felix.useradmin.impl.ResettableTimer#schedule()}. |
| */ |
| public void testScheduleMultipleTasksOk() throws Exception { |
| final AtomicInteger m_counter = new AtomicInteger(0); |
| |
| Runnable task = new Runnable() { |
| public void run() { |
| m_counter.incrementAndGet(); |
| } |
| }; |
| |
| m_timer = new ResettableTimer(task, 100, TimeUnit.MILLISECONDS); |
| |
| Future f = m_timer.schedule(); |
| f.get(); |
| |
| f = m_timer.schedule(); |
| f.get(); |
| |
| assertEquals(2, m_counter.get()); |
| } |
| |
| /** |
| * Tests that a task is invoked as single shot. |
| */ |
| public void testScheduleSingleShotOk() throws Exception { |
| m_latch = new CountDownLatch(1); |
| |
| Runnable task = new Runnable() { |
| public void run() { |
| m_latch.countDown(); |
| } |
| }; |
| |
| m_timer = new ResettableTimer(task, 100, TimeUnit.MILLISECONDS); |
| m_timer.schedule(); |
| |
| assertTrue(m_latch.await(200, TimeUnit.MILLISECONDS)); |
| } |
| |
| /** |
| * Test method for {@link org.apache.felix.useradmin.impl.ResettableTimer#shutDown()}. |
| */ |
| public void testShutDownOk() throws Exception { |
| final AtomicInteger m_counter = new AtomicInteger(0); |
| |
| Runnable task = new Runnable() { |
| public void run() { |
| m_counter.incrementAndGet(); |
| } |
| }; |
| |
| m_timer = new ResettableTimer(task, 100, TimeUnit.MILLISECONDS); |
| m_timer.schedule(); |
| |
| TimeUnit.MILLISECONDS.sleep(75); |
| |
| m_timer.schedule(); |
| m_timer.shutDown(); |
| |
| assertEquals(1, m_counter.get()); |
| } |
| |
| /** |
| * Tests that a task is mandatory. |
| */ |
| public void testTaskIsMandatory() throws Exception { |
| try { |
| new ResettableTimer(null, 10, TimeUnit.HOURS); |
| fail("IllegalArgumentException expected!"); |
| } catch (Exception e) { |
| // Ok; expected |
| } |
| } |
| |
| /** |
| * Tests that a timeout cannot be zero. |
| */ |
| public void testTimeoutCannotBeNegative() throws Exception { |
| Runnable task = createStubTask(); |
| |
| try { |
| new ResettableTimer(task, -1, TimeUnit.MILLISECONDS); |
| fail("IllegalArgumentException expected!"); |
| } catch (Exception e) { |
| // Ok; expected |
| } |
| } |
| |
| /** |
| * Tests that a timeout cannot be zero. |
| */ |
| public void testTimeoutCannotBeZero() throws Exception { |
| Runnable task = createStubTask(); |
| |
| try { |
| new ResettableTimer(task, 0, TimeUnit.MILLISECONDS); |
| fail("IllegalArgumentException expected!"); |
| } catch (Exception e) { |
| // Ok; expected |
| } |
| } |
| |
| /** |
| * Tests that a time unit is mandatory. |
| */ |
| public void testTimeUnitIsMandatory() throws Exception { |
| Runnable task = createStubTask(); |
| |
| try { |
| new ResettableTimer(task, 10, null); |
| fail("IllegalArgumentException expected!"); |
| } catch (Exception e) { |
| // Ok; expected |
| } |
| } |
| |
| /** |
| * @return a {@link Runnable} that does nothing, never <code>null</code>. |
| */ |
| private Runnable createStubTask() { |
| return new Runnable() { |
| public void run() { |
| // No-op |
| } |
| }; |
| } |
| } |