// CHECKSTYLE IGNORE Javadoc
/*
*
* Copyright 2012 Netflix, Inc.
*
* 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.netflix.simianarmy.basic;
import static org.mockito.Mockito.when;
import static org.mockito.Mockito.mock;
import java.util.Calendar;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicLong;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.google.common.util.concurrent.Callables;
import com.netflix.simianarmy.EventType;
import com.netflix.simianarmy.Monkey;
import com.netflix.simianarmy.MonkeyType;
import com.netflix.simianarmy.TestMonkeyContext;
// CHECKSTYLE IGNORE MagicNumber
public class TestBasicScheduler {
@Test
public void testConstructors() {
BasicScheduler sched = new BasicScheduler();
Assert.assertNotNull(sched);
Assert.assertEquals(sched.frequency(), 1);
Assert.assertEquals(sched.frequencyUnit(), TimeUnit.HOURS);
BasicScheduler sched2 = new BasicScheduler(12, TimeUnit.MINUTES, 2);
Assert.assertEquals(sched2.frequency(), 12);
Assert.assertEquals(sched2.frequencyUnit(), TimeUnit.MINUTES);
}
private enum Enums implements MonkeyType {
MONKEY
};
private enum EventEnums implements EventType {
EVENT
}
@Test
public void testRunner() throws InterruptedException {
BasicScheduler sched = new BasicScheduler(200, TimeUnit.MILLISECONDS, 1);
Monkey mockMonkey = mock(Monkey.class);
when(mockMonkey.context()).thenReturn(new TestMonkeyContext(Enums.MONKEY));
when(mockMonkey.type()).thenReturn(Enums.MONKEY).thenReturn(Enums.MONKEY);
final AtomicLong counter = new AtomicLong(0L);
sched.start(mockMonkey, new Runnable() {
@Override
public void run() {
counter.incrementAndGet();
}
});
Thread.sleep(100);
Assert.assertEquals(counter.get(), 1);
Thread.sleep(200);
Assert.assertEquals(counter.get(), 2);
sched.stop(mockMonkey);
Thread.sleep(200);
Assert.assertEquals(counter.get(), 2);
}
@Test
public void testDelayedStart() throws Exception {
BasicScheduler sched = new BasicScheduler(1, TimeUnit.HOURS, 1);
TestMonkeyContext context = new TestMonkeyContext(Enums.MONKEY);
Monkey mockMonkey = mock(Monkey.class);
when(mockMonkey.context()).thenReturn(context).thenReturn(context);
when(mockMonkey.type()).thenReturn(Enums.MONKEY).thenReturn(Enums.MONKEY);
// first monkey has no previous events, so it runs practically immediately
FutureTask<Void> task = new FutureTask<Void>(Callables.<Void>returning(null));
sched.start(mockMonkey, task);
// make sure that the task gets completed within 100ms
task.get(100L, TimeUnit.MILLISECONDS);
sched.stop(mockMonkey);
// create an event 5 min ago
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MINUTE, -5);
BasicRecorderEvent evt = new BasicRecorderEvent(
Enums.MONKEY, EventEnums.EVENT, "region", "test-id", cal.getTime().getTime());
context.recorder().recordEvent(evt);
// this time when it runs it will not run immediately since it should be scheduled for 55m from now.
task = new FutureTask<Void>(Callables.<Void>returning(null));
sched.start(mockMonkey, task);
try {
task.get(100, TimeUnit.MILLISECONDS);
Assert.fail("The task shouldn't have been completed in 100ms");
} catch (TimeoutException e) { // NOPMD - This is an expected exception
}
sched.stop(mockMonkey);
}
}