package org.apache.lucene.analysis;
import java.io.StringReader;
import java.util.Arrays;
import org.apache.lucene.util._TestUtil;
import org.apache.lucene.util.automaton.Automaton;
import org.apache.lucene.util.automaton.BasicAutomata;
import org.apache.lucene.util.automaton.BasicOperations;
import org.apache.lucene.util.automaton.CharacterRunAutomaton;
import org.apache.lucene.util.automaton.RegExp;
/*
* 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.
*/
public class TestMockAnalyzer extends BaseTokenStreamTestCase {
/** Test a configuration that behaves a lot like WhitespaceAnalyzer */
public void testWhitespace() throws Exception {
Analyzer a = new MockAnalyzer(random());
assertAnalyzesTo(a, "A bc defg hiJklmn opqrstuv wxy z ",
new String[] { "a", "bc", "defg", "hijklmn", "opqrstuv", "wxy", "z" });
assertAnalyzesToReuse(a, "aba cadaba shazam",
new String[] { "aba", "cadaba", "shazam" });
assertAnalyzesToReuse(a, "break on whitespace",
new String[] { "break", "on", "whitespace" });
}
/** Test a configuration that behaves a lot like SimpleAnalyzer */
public void testSimple() throws Exception {
Analyzer a = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true);
assertAnalyzesTo(a, "a-bc123 defg+hijklmn567opqrstuv78wxy_z ",
new String[] { "a", "bc", "defg", "hijklmn", "opqrstuv", "wxy", "z" });
assertAnalyzesToReuse(a, "aba4cadaba-Shazam",
new String[] { "aba", "cadaba", "shazam" });
assertAnalyzesToReuse(a, "break+on/Letters",
new String[] { "break", "on", "letters" });
}
/** Test a configuration that behaves a lot like KeywordAnalyzer */
public void testKeyword() throws Exception {
Analyzer a = new MockAnalyzer(random(), MockTokenizer.KEYWORD, false);
assertAnalyzesTo(a, "a-bc123 defg+hijklmn567opqrstuv78wxy_z ",
new String[] { "a-bc123 defg+hijklmn567opqrstuv78wxy_z " });
assertAnalyzesToReuse(a, "aba4cadaba-Shazam",
new String[] { "aba4cadaba-Shazam" });
assertAnalyzesToReuse(a, "break+on/Nothing",
new String[] { "break+on/Nothing" });
}
/** Test a configuration that behaves a lot like StopAnalyzer */
public void testStop() throws Exception {
Analyzer a = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true, MockTokenFilter.ENGLISH_STOPSET);
assertAnalyzesTo(a, "the quick brown a fox",
new String[] { "quick", "brown", "fox" },
new int[] { 2, 1, 2 });
}
/** Test a configuration that behaves a lot like KeepWordFilter */
public void testKeep() throws Exception {
CharacterRunAutomaton keepWords =
new CharacterRunAutomaton(
BasicOperations.complement(
Automaton.union(
Arrays.asList(BasicAutomata.makeString("foo"), BasicAutomata.makeString("bar")))));
Analyzer a = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true, keepWords);
assertAnalyzesTo(a, "quick foo brown bar bar fox foo",
new String[] { "foo", "bar", "bar", "foo" },
new int[] { 2, 2, 1, 2 });
}
/** Test a configuration that behaves a lot like LengthFilter */
public void testLength() throws Exception {
CharacterRunAutomaton length5 = new CharacterRunAutomaton(new RegExp(".{5,}").toAutomaton());
Analyzer a = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, true, length5);
assertAnalyzesTo(a, "ok toolong fine notfine",
new String[] { "ok", "fine" },
new int[] { 1, 2 });
}
public void testLUCENE_3042() throws Exception {
String testString = "t";
Analyzer analyzer = new MockAnalyzer(random());
TokenStream stream = analyzer.tokenStream("dummy", testString);
stream.reset();
while (stream.incrementToken()) {
// consume
}
stream.end();
stream.close();
assertAnalyzesToReuse(analyzer, testString, new String[] { "t" });
}
/** blast some random strings through the analyzer */
public void testRandomStrings() throws Exception {
checkRandomData(random(), new MockAnalyzer(random()), atLeast(1000));
}
public void testForwardOffsets() throws Exception {
int num = atLeast(10000);
for (int i = 0; i < num; i++) {
String s = _TestUtil.randomHtmlishString(random(), 20);
StringReader reader = new StringReader(s);
MockCharFilter charfilter = new MockCharFilter(reader, 2);
MockAnalyzer analyzer = new MockAnalyzer(random());
TokenStream ts = analyzer.tokenStream("bogus", charfilter);
ts.reset();
while (ts.incrementToken()) {
;
}
ts.end();
ts.close();
}
}
}