/*
* 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.solr.cloud;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.apache.solr.SolrTestCaseJ4;
import org.apache.solr.cloud.ActionThrottle.NanoTimeSource;
import org.junit.Test;
public class ActionThrottleTest extends SolrTestCaseJ4 {
static class TestNanoTimeSource implements NanoTimeSource {
private List<Long> returnValues;
private int index = 0;
public TestNanoTimeSource(List<Long> returnValues) {
this.returnValues = returnValues;
}
@Override
public long getTime() {
return returnValues.get(index++);
}
}
@Test
public void testBasics() throws Exception {
ActionThrottle at = new ActionThrottle("test", 1000);
long start = System.nanoTime();
at.minimumWaitBetweenActions();
// should be no wait
assertTrue(TimeUnit.MILLISECONDS.convert(System.nanoTime() - start, TimeUnit.NANOSECONDS) < 1000);
at.markAttemptingAction();
if (random().nextBoolean()) Thread.sleep(100);
at.minimumWaitBetweenActions();
long elaspsedTime = TimeUnit.MILLISECONDS.convert(System.nanoTime() - start, TimeUnit.NANOSECONDS);
assertTrue(elaspsedTime + "ms", elaspsedTime >= 995);
start = System.nanoTime();
at.markAttemptingAction();
at.minimumWaitBetweenActions();
Thread.sleep(random().nextInt(1000));
elaspsedTime = TimeUnit.MILLISECONDS.convert(System.nanoTime() - start, TimeUnit.NANOSECONDS);
assertTrue(elaspsedTime + "ms", elaspsedTime >= 995);
}
@Test
public void testAZeroNanoTimeReturnInWait() throws Exception {
ActionThrottle at = new ActionThrottle("test", 1000, new TestNanoTimeSource(Arrays.asList(new Long[]{0L, 10L})));
long start = System.nanoTime();
at.markAttemptingAction();
at.minimumWaitBetweenActions();
long elaspsedTime = TimeUnit.MILLISECONDS.convert(System.nanoTime() - start, TimeUnit.NANOSECONDS);
assertTrue(elaspsedTime + "ms", elaspsedTime >= 995);
}
}