package org.apache.lucene.analysis.ru;
/**
* 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.
*/
import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.CharArraySet;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.apache.lucene.util.Version;
/**
* Test case for RussianAnalyzer.
*/
public class TestRussianAnalyzer extends BaseTokenStreamTestCase
{
private InputStreamReader inWords;
private InputStreamReader sampleUnicode;
/**
* @deprecated remove this test and its datafiles in Lucene 4.0
* the Snowball version has its own data tests.
*/
@Deprecated
public void testUnicode30() throws IOException
{
RussianAnalyzer ra = new RussianAnalyzer(Version.LUCENE_30);
inWords =
new InputStreamReader(
getClass().getResourceAsStream("testUTF8.txt"),
"UTF-8");
sampleUnicode =
new InputStreamReader(
getClass().getResourceAsStream("resUTF8.htm"),
"UTF-8");
TokenStream in = ra.tokenStream("all", inWords);
RussianLetterTokenizer sample =
new RussianLetterTokenizer(TEST_VERSION_CURRENT,
sampleUnicode);
CharTermAttribute text = in.getAttribute(CharTermAttribute.class);
CharTermAttribute sampleText = sample.getAttribute(CharTermAttribute.class);
for (;;)
{
if (in.incrementToken() == false)
break;
boolean nextSampleToken = sample.incrementToken();
assertEquals(
"Unicode",
text.toString(),
nextSampleToken == false
? null
: sampleText.toString());
}
inWords.close();
sampleUnicode.close();
}
/** Check that RussianAnalyzer doesnt discard any numbers */
public void testDigitsInRussianCharset() throws IOException
{
RussianAnalyzer ra = new RussianAnalyzer(TEST_VERSION_CURRENT);
assertAnalyzesTo(ra, "text 1000", new String[] { "text", "1000" });
}
/** @deprecated remove this test in Lucene 4.0: stopwords changed */
@Deprecated
public void testReusableTokenStream30() throws Exception {
Analyzer a = new RussianAnalyzer(Version.LUCENE_30);
assertAnalyzesToReuse(a, "Вместе с тем о силе электромагнитной энергии имели представление еще",
new String[] { "вмест", "сил", "электромагнитн", "энерг", "имел", "представлен" });
assertAnalyzesToReuse(a, "Но знание это хранилось в тайне",
new String[] { "знан", "хран", "тайн" });
}
public void testReusableTokenStream() throws Exception {
Analyzer a = new RussianAnalyzer(TEST_VERSION_CURRENT);
assertAnalyzesToReuse(a, "Вместе с тем о силе электромагнитной энергии имели представление еще",
new String[] { "вмест", "сил", "электромагнитн", "энерг", "имел", "представлен" });
assertAnalyzesToReuse(a, "Но знание это хранилось в тайне",
new String[] { "знан", "эт", "хран", "тайн" });
}
public void testWithStemExclusionSet() throws Exception {
CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, 1, true);
set.add("представление");
Analyzer a = new RussianAnalyzer(TEST_VERSION_CURRENT, RussianAnalyzer.getDefaultStopSet() , set);
assertAnalyzesToReuse(a, "Вместе с тем о силе электромагнитной энергии имели представление еще",
new String[] { "вмест", "сил", "электромагнитн", "энерг", "имел", "представление" });
}
}