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

import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.search.aggregations.bucket.filter.Filter;
import org.elasticsearch.search.aggregations.bucket.terms.StringTerms;
import org.elasticsearch.test.ESIntegTestCase;
import org.junit.Test;

import java.io.IOException;

import static org.elasticsearch.test.StreamsUtils.copyToStringFromClasspath;
import static org.elasticsearch.index.query.QueryBuilders.matchAllQuery;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertSearchResponse;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.instanceOf;

public class DedicatedAggregationIT extends ESIntegTestCase {

    // https://github.com/elasticsearch/elasticsearch/issues/7240
    @Test
    public void testEmptyBoolIsMatchAll() throws IOException {
        String query = copyToStringFromClasspath("/org/elasticsearch/search/aggregations/bucket/agg-filter-with-empty-bool.json");
        createIndex("testidx");
        index("testidx", "apache", "1", "field", "text");
        index("testidx", "nginx", "2", "field", "text");
        refresh();
        ensureGreen("testidx");
        SearchResponse searchResponse = client().prepareSearch("testidx").setQuery(matchAllQuery()).get();
        assertThat(searchResponse.getHits().getTotalHits(), equalTo(2l));
        searchResponse = client().prepareSearch("testidx").setSource(query).get();
        assertSearchResponse(searchResponse);
        assertThat(searchResponse.getAggregations().getAsMap().get("issue7240"), instanceOf(Filter.class));
        Filter filterAgg = (Filter) searchResponse.getAggregations().getAsMap().get("issue7240");
        assertThat(filterAgg.getAggregations().getAsMap().get("terms"), instanceOf(StringTerms.class));
        assertThat(((StringTerms) filterAgg.getAggregations().getAsMap().get("terms")).getBuckets().get(0).getDocCount(), equalTo(1l));
    }
}