TermsAggregatorFactoryTests.java example

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 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.search.aggregations.bucket.terms;

import org.elasticsearch.search.aggregations.Aggregator;
import org.elasticsearch.test.ESSingleNodeTestCase;

import static org.hamcrest.Matchers.equalTo;

public class TermsAggregatorFactoryTests extends ESSingleNodeTestCase {
    public void testSubAggCollectMode() throws Exception {
        assertThat(TermsAggregatorFactory.subAggCollectionMode(Integer.MAX_VALUE, -1),
            equalTo(Aggregator.SubAggCollectionMode.DEPTH_FIRST));
        assertThat(TermsAggregatorFactory.subAggCollectionMode(10, -1),
            equalTo(Aggregator.SubAggCollectionMode.BREADTH_FIRST));
        assertThat(TermsAggregatorFactory.subAggCollectionMode(10, 5),
            equalTo(Aggregator.SubAggCollectionMode.DEPTH_FIRST));
        assertThat(TermsAggregatorFactory.subAggCollectionMode(10, 10),
            equalTo(Aggregator.SubAggCollectionMode.DEPTH_FIRST));
        assertThat(TermsAggregatorFactory.subAggCollectionMode(10, 100),
            equalTo(Aggregator.SubAggCollectionMode.BREADTH_FIRST));
        assertThat(TermsAggregatorFactory.subAggCollectionMode(1, 2),
            equalTo(Aggregator.SubAggCollectionMode.BREADTH_FIRST));
        assertThat(TermsAggregatorFactory.subAggCollectionMode(1, 100),
            equalTo(Aggregator.SubAggCollectionMode.BREADTH_FIRST));
    }
}