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Tests: Add unit test for InternalDateHistogram (#23402)
Relates to #22278
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...va/org/elasticsearch/search/aggregations/bucket/histogram/InternalDateHistogramTests.java
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/* | ||
* Licensed to Elasticsearch under one or more contributor | ||
* license agreements. See the NOTICE file distributed with | ||
* this work for additional information regarding copyright | ||
* ownership. Elasticsearch 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. | ||
*/ | ||
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package org.elasticsearch.search.aggregations.bucket.histogram; | ||
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import org.apache.lucene.util.TestUtil; | ||
import org.elasticsearch.common.io.stream.Writeable; | ||
import org.elasticsearch.common.unit.TimeValue; | ||
import org.elasticsearch.search.DocValueFormat; | ||
import org.elasticsearch.search.aggregations.InternalAggregationTestCase; | ||
import org.elasticsearch.search.aggregations.InternalAggregations; | ||
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator; | ||
import org.joda.time.DateTime; | ||
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import java.util.ArrayList; | ||
import java.util.List; | ||
import java.util.Map; | ||
import java.util.TreeMap; | ||
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import static org.elasticsearch.common.unit.TimeValue.timeValueHours; | ||
import static org.elasticsearch.common.unit.TimeValue.timeValueMinutes; | ||
import static org.elasticsearch.common.unit.TimeValue.timeValueSeconds; | ||
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public class InternalDateHistogramTests extends InternalAggregationTestCase<InternalDateHistogram> { | ||
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@Override | ||
protected InternalDateHistogram createTestInstance(String name, List<PipelineAggregator> pipelineAggregators, | ||
Map<String, Object> metaData) { | ||
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boolean keyed = randomBoolean(); | ||
DocValueFormat format = DocValueFormat.RAW; | ||
int nbBuckets = randomInt(10); | ||
List<InternalDateHistogram.Bucket> buckets = new ArrayList<>(nbBuckets); | ||
long startingDate = System.currentTimeMillis(); | ||
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long interval = randomIntBetween(1, 3); | ||
long intervalMillis = randomFrom(timeValueSeconds(interval), timeValueMinutes(interval), timeValueHours(interval)).getMillis(); | ||
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for (int i = 0; i < nbBuckets; i++) { | ||
long key = startingDate + (intervalMillis * i); | ||
buckets.add(i, new InternalDateHistogram.Bucket(key, randomIntBetween(1, 100), keyed, format, InternalAggregations.EMPTY)); | ||
} | ||
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InternalOrder order = (InternalOrder) randomFrom(InternalHistogram.Order.KEY_ASC, InternalHistogram.Order.KEY_DESC); | ||
return new InternalDateHistogram(name, buckets, order, 1, 0L, null, format, keyed, pipelineAggregators, metaData); | ||
} | ||
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@Override | ||
protected void assertReduced(InternalDateHistogram reduced, List<InternalDateHistogram> inputs) { | ||
Map<Long, Long> expectedCounts = new TreeMap<>(); | ||
for (Histogram histogram : inputs) { | ||
for (Histogram.Bucket bucket : histogram.getBuckets()) { | ||
expectedCounts.compute(((DateTime) bucket.getKey()).getMillis(), | ||
(key, oldValue) -> (oldValue == null ? 0 : oldValue) + bucket.getDocCount()); | ||
} | ||
} | ||
Map<Long, Long> actualCounts = new TreeMap<>(); | ||
for (Histogram.Bucket bucket : reduced.getBuckets()) { | ||
actualCounts.compute(((DateTime) bucket.getKey()).getMillis(), | ||
(key, oldValue) -> (oldValue == null ? 0 : oldValue) + bucket.getDocCount()); | ||
} | ||
assertEquals(expectedCounts, actualCounts); | ||
} | ||
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@Override | ||
protected Writeable.Reader<InternalDateHistogram> instanceReader() { | ||
return InternalDateHistogram::new; | ||
} | ||
} |