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* the Apache License, Version 2.0 (the "License"); you may
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* 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,
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package org.elasticsearch.search.aggregations.metrics.percentiles.tdigest;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.metrics.percentiles.InternalPercentilesTestCase;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
public class InternalTDigestPercentilesTests extends InternalPercentilesTestCase<InternalTDigestPercentiles> {
@Override
protected InternalTDigestPercentiles createTestInstance(String name,
List<PipelineAggregator> pipelineAggregators,
Map<String, Object> metaData,
boolean keyed, DocValueFormat format, double[] percents, double[] values) {
final TDigestState state = new TDigestState(100);
Arrays.stream(values).forEach(state::add);
assertEquals(state.centroidCount(), values.length);
return new InternalTDigestPercentiles(name, percents, state, keyed, format, pipelineAggregators, metaData);
}
@Override
protected void assertReduced(InternalTDigestPercentiles reduced, List<InternalTDigestPercentiles> inputs) {
final TDigestState expectedState = new TDigestState(reduced.state.compression());
long totalCount = 0;
for (InternalTDigestPercentiles input : inputs) {
assertArrayEquals(reduced.keys, input.keys, 0d);
expectedState.add(input.state);
totalCount += input.state.size();
}
assertEquals(totalCount, reduced.state.size());
if (totalCount > 0) {
assertEquals(expectedState.quantile(0), reduced.state.quantile(0), 0d);
assertEquals(expectedState.quantile(1), reduced.state.quantile(1), 0d);
}
}
@Override
protected Writeable.Reader<InternalTDigestPercentiles> instanceReader() {
return InternalTDigestPercentiles::new;
}
}