/*
* 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 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.testing.ListDataPointGroup;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.Matchers.closeTo;
import static org.junit.Assert.assertThat;
public class ScaleAggregatorTest
{
private ScaleAggregator aggregator;
@Before
public void setup()
{
aggregator = new ScaleAggregator(new DoubleDataPointFactoryImpl());
}
@Test(expected = NullPointerException.class)
public void test_nullSet_invalid()
{
aggregator.aggregate(null);
}
@Test
public void test_longValues()
{
ListDataPointGroup group = new ListDataPointGroup("group");
group.addDataPoint(new LongDataPoint(1, 10));
group.addDataPoint(new LongDataPoint(1, 3));
group.addDataPoint(new LongDataPoint(2, 5));
group.addDataPoint(new LongDataPoint(3, 25));
aggregator.setFactor(2.5);
DataPointGroup results = aggregator.aggregate(group);
DataPoint dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(1L));
assertThat(dataPoint.getLongValue(), equalTo(25L));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(1L));
assertThat(dataPoint.getLongValue(), equalTo(7L));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getLongValue(), equalTo(12L));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(3L));
assertThat(dataPoint.getLongValue(), equalTo(62L));
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(2, 3.2));
aggregator.setFactor(1.5);
DataPointGroup results = aggregator.aggregate(group);
DataPoint dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(1L));
assertThat(dataPoint.getDoubleValue(), equalTo(15.0));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(1L));
assertThat(dataPoint.getDoubleValue(), closeTo(30.45, 2));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getDoubleValue(), closeTo(4.8, 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 LongDataPoint(2, 1));
aggregator.setFactor(0.5);
DataPointGroup results = aggregator.aggregate(group);
DataPoint dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(1L));
assertThat(dataPoint.getDoubleValue(), equalTo(5.0));
dataPoint = results.next();
assertThat(dataPoint.getTimestamp(), equalTo(2L));
assertThat(dataPoint.getLongValue(), equalTo(0L));
assertThat(results.hasNext(), equalTo(false));
}
}