/*
* Copyright 2016 KairosDB Authors
*
* 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 org.kairosdb.core.aggregator;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.Matchers.closeTo;
import static org.junit.Assert.assertThat;
import org.junit.Before;
import org.junit.Test;
import org.kairosdb.core.DataPoint;
import org.kairosdb.core.datapoints.DoubleDataPoint;
import org.kairosdb.core.datapoints.DoubleDataPointFactoryImpl;
import org.kairosdb.core.datapoints.LongDataPoint;
import org.kairosdb.core.datastore.DataPointGroup;
import org.kairosdb.core.exception.KairosDBException;
import org.kairosdb.testing.ListDataPointGroup;
public class SmaAggregatorTest
{
private SmaAggregator aggregator;
@Before
public void setup() throws KairosDBException
{
aggregator = new SmaAggregator(new DoubleDataPointFactoryImpl());
}
@Test(expected = NullPointerException.class)
public void test_nullSet_invalid()
{
aggregator.setSize(3);
aggregator.aggregate(null);
}
@Test
public void test_longValues()
{
ListDataPointGroup group = new ListDataPointGroup("group");
group.addDataPoint(new LongDataPoint(1, 10));
group.addDataPoint(new LongDataPoint(1, 20));
group.addDataPoint(new LongDataPoint(1, 3));
group.addDataPoint(new LongDataPoint(2, 1));
group.addDataPoint(new LongDataPoint(2, 5));
group.addDataPoint(new LongDataPoint(3, 6));
aggregator.setSize(3);
DataPointGroup results = aggregator.aggregate(group);
DataPoint dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(1L));
assertThat(dataPoint.getLongValue(), equalTo(11L));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getLongValue(), equalTo(8L));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getLongValue(), equalTo(3L));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(3L));
assertThat(dataPoint.getLongValue(), equalTo(4L));
assertThat(results.hasNext(), equalTo(false));
}
@Test
public void test_doubleValues()
{
ListDataPointGroup group = new ListDataPointGroup("group");
group.addDataPoint(new DoubleDataPoint(1, 10.0));
group.addDataPoint(new DoubleDataPoint(1, 20.3));
group.addDataPoint(new DoubleDataPoint(1, 3.0));
group.addDataPoint(new DoubleDataPoint(2, 1.0));
group.addDataPoint(new DoubleDataPoint(2, 5.2));
group.addDataPoint(new DoubleDataPoint(3, 6.0));
aggregator.setSize(3);
DataPointGroup results = aggregator.aggregate(group);
DataPoint dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(1L));
assertThat(dataPoint.getDoubleValue(), equalTo(11.1));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getDoubleValue(), equalTo(8.1));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getDoubleValue(), closeTo(3.067, 2));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(3L));
assertThat(dataPoint.getDoubleValue(), closeTo(4.067, 2));
assertThat(results.hasNext(), equalTo(false));
}
@Test
public void test_mixedTypeValues()
{
ListDataPointGroup group = new ListDataPointGroup("group");
group.addDataPoint(new DoubleDataPoint(1, 10.0));
group.addDataPoint(new DoubleDataPoint(1, 20.3));
group.addDataPoint(new LongDataPoint(1, 3));
group.addDataPoint(new LongDataPoint(2, 1));
group.addDataPoint(new DoubleDataPoint(2, 5.2));
group.addDataPoint(new DoubleDataPoint(3, 6.0));
aggregator.setSize(3);
DataPointGroup results = aggregator.aggregate(group);
DataPoint dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(1L));
assertThat(dataPoint.getDoubleValue(), equalTo(11.1));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getDoubleValue(), equalTo(8.1));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getDoubleValue(), closeTo(3.067, 2));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(3L));
assertThat(dataPoint.getDoubleValue(), closeTo(4.067, 2));
assertThat(results.hasNext(), equalTo(false));
}
}