/**
* Copyright (C) 2012 LinkedIn Inc <opensource@linkedin.com>
*
* 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.linkedin.helix.monitoring;
import org.testng.annotations.Test;
import org.testng.AssertJUnit;
import com.linkedin.helix.monitoring.StatCollector;
public class TestStatCollector
{
@Test(groups={ "unitTest" })
public void TestCollectData()
{
StatCollector collector = new StatCollector();
int nPoints = 100;
for (int i = 0; i< nPoints; i++)
{
collector.addData(i*1000);
}
AssertJUnit.assertEquals(collector.getNumDataPoints(), nPoints);
AssertJUnit.assertEquals((long)collector.getMax(), 99000);
AssertJUnit.assertEquals((long)collector.getTotalSum(), 4950000);
AssertJUnit.assertEquals((long)collector.getPercentile(40), 39400);
AssertJUnit.assertEquals((long)collector.getMean(), 49500);
AssertJUnit.assertEquals((long)collector.getMin(), 0);
collector.reset();
AssertJUnit.assertEquals(collector.getNumDataPoints(), 0);
AssertJUnit.assertEquals((long)collector.getMax(), 0);
AssertJUnit.assertEquals((long)collector.getTotalSum(), 0);
AssertJUnit.assertEquals((long)collector.getPercentile(40), 0);
AssertJUnit.assertEquals((long)collector.getMean(), 0);
AssertJUnit.assertEquals((long)collector.getMin(), 0);
}
}