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 * 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
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package org.elasticsearch.search.aggregations.bucket.terms;

import org.apache.lucene.util.BytesRef;
import org.elasticsearch.common.io.stream.Writeable.Reader;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.InternalAggregations;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

public class StringTermsTests extends InternalTermsTestCase {

    @Override
    protected InternalTerms<?, ?> createTestInstance(
            String name,
            List<PipelineAggregator> pipelineAggregators,
            Map<String, Object> metaData) {
        Terms.Order order = Terms.Order.count(false);
        long minDocCount = 1;
        int requiredSize = 3;
        int shardSize = requiredSize + 2;
        DocValueFormat format = DocValueFormat.RAW;
        boolean showTermDocCountError = false;
        long docCountError = -1;
        long otherDocCount = 0;
        List<StringTerms.Bucket> buckets = new ArrayList<>();
        final int numBuckets = randomInt(shardSize);
        Set<BytesRef> terms = new HashSet<>();
        for (int i = 0; i < numBuckets; ++i) {
            BytesRef term = randomValueOtherThanMany(b -> terms.add(b) == false, () -> new BytesRef(randomAlphaOfLength(10)));
            int docCount = randomIntBetween(1, 100);
            buckets.add(new StringTerms.Bucket(term, docCount, InternalAggregations.EMPTY,
                    showTermDocCountError, docCountError, format));
        }
        return new StringTerms(name, order, requiredSize, minDocCount, pipelineAggregators,
                metaData, format, shardSize, showTermDocCountError, otherDocCount, buckets, docCountError);
    }

    @Override
    protected Reader<InternalTerms<?, ?>> instanceReader() {
        return StringTerms::new;
    }

}
