mirror of https://github.com/apache/lucene.git
LUCENE-5736 - adding test for caching nb classifier
git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1638717 13f79535-47bb-0310-9956-ffa450edef68
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package org.apache.lucene.classification;
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import org.apache.lucene.analysis.Analyzer;
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import org.apache.lucene.analysis.MockAnalyzer;
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import org.apache.lucene.analysis.Tokenizer;
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import org.apache.lucene.analysis.core.KeywordTokenizer;
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import org.apache.lucene.analysis.ngram.EdgeNGramTokenFilter;
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import org.apache.lucene.analysis.reverse.ReverseStringFilter;
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import org.apache.lucene.index.Term;
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import org.apache.lucene.search.TermQuery;
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import org.apache.lucene.util.BytesRef;
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import org.junit.Test;
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/**
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* Testcase for {@link org.apache.lucene.classification.CachingNaiveBayesClassifier
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*/
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public class CachingNaiveBayesClassifierTest extends ClassificationTestBase<BytesRef> {
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@Test
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public void testBasicUsage() throws Exception {
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checkCorrectClassification(new CachingNaiveBayesClassifier(), TECHNOLOGY_INPUT, TECHNOLOGY_RESULT, new MockAnalyzer(random()), textFieldName, categoryFieldName);
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checkCorrectClassification(new CachingNaiveBayesClassifier(), POLITICS_INPUT, POLITICS_RESULT, new MockAnalyzer(random()), textFieldName, categoryFieldName);
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}
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@Test
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public void testBasicUsageWithQuery() throws Exception {
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checkCorrectClassification(new CachingNaiveBayesClassifier(), TECHNOLOGY_INPUT, TECHNOLOGY_RESULT, new MockAnalyzer(random()), textFieldName, categoryFieldName, new TermQuery(new Term(textFieldName, "it")));
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}
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@Test
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public void testNGramUsage() throws Exception {
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checkCorrectClassification(new CachingNaiveBayesClassifier(), TECHNOLOGY_INPUT, TECHNOLOGY_RESULT, new NGramAnalyzer(), textFieldName, categoryFieldName);
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}
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private class NGramAnalyzer extends Analyzer {
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@Override
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protected TokenStreamComponents createComponents(String fieldName) {
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final Tokenizer tokenizer = new KeywordTokenizer();
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return new TokenStreamComponents(tokenizer, new ReverseStringFilter(new EdgeNGramTokenFilter(new ReverseStringFilter(tokenizer), 10, 20)));
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}
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}
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@Test
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public void testPerformance() throws Exception {
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checkPerformance(new CachingNaiveBayesClassifier(), new MockAnalyzer(random()), categoryFieldName);
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}
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}
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