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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.utils.time;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.util.Date;
import java.util.TimerTask;
import org.junit.Before;
import org.junit.Test;
public class PseudoTimerTest {
private static final long DELAY_MS = 1000L;
private static final long PERIOD_MS = 2000L;
private int count;
private TestTimeMulti currentTime;
private PseudoTimer timer;
/**
* Sets up objects, including {@link #timer}.
*/
@Before
public void setUp() {
count = 0;
currentTime = new TestTimeMulti();
timer = new PseudoTimer(currentTime);
}
@Test
public void testCancel() {
// schedule two tasks
timer.scheduleAtFixedRate(new MyTask(), DELAY_MS, PERIOD_MS);
timer.schedule(new MyTask(), DELAY_MS);
assertFalse(currentTime.isEmpty());
// cancel the timer
timer.cancel();
// invoke it again to ensure no exception
timer.cancel();
}
@Test
public void testPurge() {
assertEquals(0, timer.purge());
assertEquals(0, timer.purge());
}
@Test
public void testScheduleTimerTaskLong() throws InterruptedException {
timer.schedule(new MyTask(), DELAY_MS);
assertFalse(currentTime.isEmpty());
// wait for the initial delay
currentTime.waitFor(DELAY_MS);
assertEquals(1, count);
assertTrue(currentTime.isEmpty());
}
@Test
public void testScheduleTimerTaskDate() {
assertThatThrownBy(() -> timer.schedule(new MyTask(), new Date()))
.isInstanceOf(UnsupportedOperationException.class);
}
@Test
public void testScheduleTimerTaskLongLong() throws InterruptedException {
timer.schedule(new MyTask(), DELAY_MS, PERIOD_MS);
assertFalse(currentTime.isEmpty());
// wait for the initial delay plus a couple of additional periods
final long tbegin = System.currentTimeMillis();
currentTime.waitFor(DELAY_MS + PERIOD_MS * 2);
assertTrue(count >= 3);
assertFalse(currentTime.isEmpty());
// this thread should not have blocked while waiting
assertTrue(System.currentTimeMillis() < tbegin + 2000);
}
@Test
public void testScheduleTimerTaskDateLong() {
assertThatThrownBy(() -> timer.schedule(new MyTask(), new Date(), 1L))
.isInstanceOf(UnsupportedOperationException.class);
}
@Test
public void testScheduleAtFixedRateTimerTaskLongLong() throws InterruptedException {
timer.scheduleAtFixedRate(new MyTask(), DELAY_MS, PERIOD_MS);
assertFalse(currentTime.isEmpty());
// wait for the initial delay plus a couple of additional periods
final long tbegin = System.currentTimeMillis();
currentTime.waitFor(DELAY_MS + PERIOD_MS * 2);
assertTrue(count >= 3);
assertFalse(currentTime.isEmpty());
// this thread should not have blocked while waiting
assertTrue(System.currentTimeMillis() < tbegin + 2000);
}
@Test
public void testScheduleAtFixedRateTimerTaskDateLong() {
assertThatThrownBy(() -> timer.scheduleAtFixedRate(new MyTask(), new Date(), 1L))
.isInstanceOf(UnsupportedOperationException.class);
}
private class MyTask extends TimerTask {
@Override
public void run() {
++count;
}
}
}
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