| using Lucene.Net.Analysis.Core; |
| using Lucene.Net.Analysis.Miscellaneous; |
| using Lucene.Net.Analysis.Util; |
| using NUnit.Framework; |
| using System; |
| |
| namespace Lucene.Net.Analysis.Ja |
| { |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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. |
| */ |
| |
| /// <summary> |
| /// Tests for <see cref="JapaneseKatakanaStemFilter"/> |
| /// </summary> |
| public class TestJapaneseKatakanaStemFilter : BaseTokenStreamTestCase |
| { |
| private Analyzer analyzer = Analyzer.NewAnonymous(createComponents: (fieldName, reader) => |
| { |
| // Use a MockTokenizer here since this filter doesn't really depend on Kuromoji |
| Tokenizer source = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false); |
| return new TokenStreamComponents(source, new JapaneseKatakanaStemFilter(source)); |
| }); |
| |
| /** |
| * Test a few common katakana spelling variations. |
| * <p> |
| * English translations are as follows: |
| * <ul> |
| * <li>copy</li> |
| * <li>coffee</li> |
| * <li>taxi</li> |
| * <li>party</li> |
| * <li>party (without long sound)</li> |
| * <li>center</li> |
| * </ul> |
| * Note that we remove a long sound in the case of "coffee" that is required. |
| * </p> |
| */ |
| [Test] |
| public void TestStemVariants() |
| { |
| AssertAnalyzesTo(analyzer, "コピー コーヒー タクシー パーティー パーティ センター", |
| new String[] { "コピー", "コーヒ", "タクシ", "パーティ", "パーティ", "センタ" }, |
| new int[] { 0, 4, 9, 14, 20, 25 }, |
| new int[] { 3, 8, 13, 19, 24, 29 }); |
| } |
| |
| [Test] |
| public void TestKeyword() |
| { |
| CharArraySet exclusionSet = new CharArraySet(TEST_VERSION_CURRENT, AsSet("コーヒー"), false); |
| Analyzer a = Analyzer.NewAnonymous(createComponents: (fieldName, reader) => |
| { |
| Tokenizer source = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false); |
| TokenStream sink = new SetKeywordMarkerFilter(source, exclusionSet); |
| return new TokenStreamComponents(source, new JapaneseKatakanaStemFilter(sink)); |
| }); |
| CheckOneTerm(a, "コーヒー", "コーヒー"); |
| } |
| |
| [Test] |
| public void TestUnsupportedHalfWidthVariants() |
| { |
| // The below result is expected since only full-width katakana is supported |
| AssertAnalyzesTo(analyzer, "タクシー", new String[] { "タクシー" }); |
| } |
| |
| [Test] |
| public void TestRandomData() |
| { |
| CheckRandomData(Random, analyzer, 1000 * RandomMultiplier); |
| } |
| |
| [Test] |
| public void TestEmptyTerm() |
| { |
| Analyzer a = Analyzer.NewAnonymous(createComponents: (fieldName, reader) => |
| { |
| Tokenizer tokenizer = new KeywordTokenizer(reader); |
| return new TokenStreamComponents(tokenizer, new JapaneseKatakanaStemFilter(tokenizer)); |
| }); |
| |
| CheckOneTerm(a, "", ""); |
| } |
| } |
| } |