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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.
*/
package org.elasticsearch.search.suggest.completion;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.search.suggest.Suggest;
import org.elasticsearch.test.ESTestCase;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.lessThanOrEqualTo;
public class CompletionSuggestionTests extends ESTestCase {
public void testToReduce() throws Exception {
List<Suggest.Suggestion<CompletionSuggestion.Entry>> shardSuggestions = new ArrayList<>();
int nShards = randomIntBetween(1, 10);
String name = randomAlphaOfLength(10);
int size = randomIntBetween(3, 5);
for (int i = 0; i < nShards; i++) {
CompletionSuggestion suggestion = new CompletionSuggestion(name, size);
suggestion.addTerm(new CompletionSuggestion.Entry(new Text(""), 0, 0));
shardSuggestions.add(suggestion);
}
int totalResults = randomIntBetween(0, 5) * nShards;
float maxScore = randomIntBetween(totalResults, totalResults*2);
for (int i = 0; i < totalResults; i++) {
Suggest.Suggestion<CompletionSuggestion.Entry> suggestion = randomFrom(shardSuggestions);
CompletionSuggestion.Entry entry = suggestion.getEntries().get(0);
if (entry.getOptions().size() < size) {
entry.addOption(new CompletionSuggestion.Entry.Option(i, new Text(""),
maxScore - i, Collections.emptyMap()));
}
}
CompletionSuggestion reducedSuggestion = CompletionSuggestion.reduceTo(shardSuggestions);
assertNotNull(reducedSuggestion);
assertThat(reducedSuggestion.getOptions().size(), lessThanOrEqualTo(size));
int count = 0;
for (CompletionSuggestion.Entry.Option option : reducedSuggestion.getOptions()) {
assertThat(option.getDoc().doc, equalTo(count));
count++;
}
}
}
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