1 package org.apache.lucene.queryParser.precedence;
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20 import java.io.IOException;
21 import java.io.Reader;
22 import java.text.DateFormat;
23 import java.util.Calendar;
24 import java.util.Collections;
25 import java.util.Date;
26 import java.util.GregorianCalendar;
27 import java.util.HashMap;
30 import org.apache.lucene.analysis.Analyzer;
31 import org.apache.lucene.analysis.LowerCaseTokenizer;
32 import org.apache.lucene.analysis.MockAnalyzer;
33 import org.apache.lucene.analysis.MockTokenizer;
34 import org.apache.lucene.analysis.TokenFilter;
35 import org.apache.lucene.analysis.TokenStream;
37 import org.apache.lucene.analysis.standard.StandardAnalyzer;
38 import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
40 import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
41 import org.apache.lucene.document.DateField;
42 import org.apache.lucene.document.DateTools;
43 import org.apache.lucene.queryParser.core.QueryNodeException;
44 import org.apache.lucene.queryParser.core.QueryNodeParseException;
45 import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler;
46 import org.apache.lucene.queryParser.standard.parser.ParseException;
47 import org.apache.lucene.search.BooleanQuery;
48 import org.apache.lucene.search.FuzzyQuery;
49 import org.apache.lucene.search.PhraseQuery;
50 import org.apache.lucene.search.PrefixQuery;
51 import org.apache.lucene.search.Query;
53 import org.apache.lucene.search.TermQuery;
54 import org.apache.lucene.search.TermRangeQuery;
55 import org.apache.lucene.search.WildcardQuery;
56 import org.apache.lucene.util.LuceneTestCase;
60 * This test case tests {@link PrecedenceQueryParser}.
63 * It contains all tests from {@link QueryParserTestBase} with some adjusted to
64 * fit the precedence requirement, plus some precedence test cases.
67 * @see QueryParserTestBase
69 // TODO: refactor this to actually extend that class, overriding the tests
70 // that it adjusts to fit the precedence requirement, adding its extra tests.
71 public class TestPrecedenceQueryParser extends LuceneTestCase {
73 public static Analyzer qpAnalyzer = new QPTestAnalyzer();
75 public static final class QPTestFilter extends TokenFilter {
77 * Filter which discards the token 'stop' and which expands the token
78 * 'phrase' into 'phrase1 phrase2'
80 public QPTestFilter(TokenStream in) {
84 private boolean inPhrase = false;
86 private int savedStart = 0;
87 private int savedEnd = 0;
89 private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
91 private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class);
94 public boolean incrementToken() throws IOException {
97 termAtt.setEmpty().append("phrase2");
98 offsetAtt.setOffset(savedStart, savedEnd);
101 while (input.incrementToken())
102 if (termAtt.toString().equals("phrase")) {
104 savedStart = offsetAtt.startOffset();
105 savedEnd = offsetAtt.endOffset();
106 termAtt.setEmpty().append("phrase1");
107 offsetAtt.setOffset(savedStart, savedEnd);
109 } else if (!termAtt.toString().equals("stop"))
115 public void reset() throws IOException {
117 this.inPhrase = false;
123 public static final class QPTestAnalyzer extends Analyzer {
125 /** Filters LowerCaseTokenizer with StopFilter. */
127 public final TokenStream tokenStream(String fieldName, Reader reader) {
128 return new QPTestFilter(new LowerCaseTokenizer(TEST_VERSION_CURRENT, reader));
132 private int originalMaxClauses;
135 public void setUp() throws Exception {
137 originalMaxClauses = BooleanQuery.getMaxClauseCount();
140 public PrecedenceQueryParser getParser(Analyzer a) throws Exception {
142 a = new MockAnalyzer(random, MockTokenizer.SIMPLE, true);
143 PrecedenceQueryParser qp = new PrecedenceQueryParser();
145 qp.setDefaultOperator(StandardQueryConfigHandler.Operator.OR);
149 public Query getQuery(String query, Analyzer a) throws Exception {
150 return getParser(a).parse(query, "field");
153 public void assertQueryEquals(String query, Analyzer a, String result)
155 Query q = getQuery(query, a);
156 String s = q.toString("field");
157 if (!s.equals(result)) {
158 fail("Query /" + query + "/ yielded /" + s + "/, expecting /" + result
163 public void assertWildcardQueryEquals(String query, boolean lowercase,
164 String result) throws Exception {
165 PrecedenceQueryParser qp = getParser(null);
166 qp.setLowercaseExpandedTerms(lowercase);
167 Query q = qp.parse(query, "field");
168 String s = q.toString("field");
169 if (!s.equals(result)) {
170 fail("WildcardQuery /" + query + "/ yielded /" + s + "/, expecting /"
175 public void assertWildcardQueryEquals(String query, String result)
177 PrecedenceQueryParser qp = getParser(null);
178 Query q = qp.parse(query, "field");
179 String s = q.toString("field");
180 if (!s.equals(result)) {
181 fail("WildcardQuery /" + query + "/ yielded /" + s + "/, expecting /"
186 public Query getQueryDOA(String query, Analyzer a) throws Exception {
188 a = new MockAnalyzer(random, MockTokenizer.SIMPLE, true);
189 PrecedenceQueryParser qp = new PrecedenceQueryParser();
191 qp.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);
192 return qp.parse(query, "field");
195 public void assertQueryEqualsDOA(String query, Analyzer a, String result)
197 Query q = getQueryDOA(query, a);
198 String s = q.toString("field");
199 if (!s.equals(result)) {
200 fail("Query /" + query + "/ yielded /" + s + "/, expecting /" + result
205 public void testSimple() throws Exception {
206 assertQueryEquals("term term term", null, "term term term");
207 assertQueryEquals("türm term term", null, "türm term term");
208 assertQueryEquals("ümlaut", null, "ümlaut");
210 assertQueryEquals("a AND b", null, "+a +b");
211 assertQueryEquals("(a AND b)", null, "+a +b");
212 assertQueryEquals("c OR (a AND b)", null, "c (+a +b)");
213 assertQueryEquals("a AND NOT b", null, "+a -b");
214 assertQueryEquals("a AND -b", null, "+a -b");
215 assertQueryEquals("a AND !b", null, "+a -b");
216 assertQueryEquals("a && b", null, "+a +b");
217 assertQueryEquals("a && ! b", null, "+a -b");
219 assertQueryEquals("a OR b", null, "a b");
220 assertQueryEquals("a || b", null, "a b");
222 assertQueryEquals("+term -term term", null, "+term -term term");
223 assertQueryEquals("foo:term AND field:anotherTerm", null,
224 "+foo:term +anotherterm");
225 assertQueryEquals("term AND \"phrase phrase\"", null,
226 "+term +\"phrase phrase\"");
227 assertQueryEquals("\"hello there\"", null, "\"hello there\"");
228 assertTrue(getQuery("a AND b", null) instanceof BooleanQuery);
229 assertTrue(getQuery("hello", null) instanceof TermQuery);
230 assertTrue(getQuery("\"hello there\"", null) instanceof PhraseQuery);
232 assertQueryEquals("germ term^2.0", null, "germ term^2.0");
233 assertQueryEquals("(term)^2.0", null, "term^2.0");
234 assertQueryEquals("(germ term)^2.0", null, "(germ term)^2.0");
235 assertQueryEquals("term^2.0", null, "term^2.0");
236 assertQueryEquals("term^2", null, "term^2.0");
237 assertQueryEquals("\"germ term\"^2.0", null, "\"germ term\"^2.0");
238 assertQueryEquals("\"term germ\"^2", null, "\"term germ\"^2.0");
240 assertQueryEquals("(foo OR bar) AND (baz OR boo)", null,
241 "+(foo bar) +(baz boo)");
242 assertQueryEquals("((a OR b) AND NOT c) OR d", null, "(+(a b) -c) d");
243 assertQueryEquals("+(apple \"steve jobs\") -(foo bar baz)", null,
244 "+(apple \"steve jobs\") -(foo bar baz)");
245 assertQueryEquals("+title:(dog OR cat) -author:\"bob dole\"", null,
246 "+(title:dog title:cat) -author:\"bob dole\"");
248 PrecedenceQueryParser qp = new PrecedenceQueryParser();
249 qp.setAnalyzer(new MockAnalyzer(random));
250 // make sure OR is the default:
251 assertEquals(StandardQueryConfigHandler.Operator.OR, qp.getDefaultOperator());
252 qp.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);
253 assertEquals(StandardQueryConfigHandler.Operator.AND, qp.getDefaultOperator());
254 qp.setDefaultOperator(StandardQueryConfigHandler.Operator.OR);
255 assertEquals(StandardQueryConfigHandler.Operator.OR, qp.getDefaultOperator());
257 assertQueryEquals("a OR !b", null, "a -b");
258 assertQueryEquals("a OR ! b", null, "a -b");
259 assertQueryEquals("a OR -b", null, "a -b");
262 public void testPunct() throws Exception {
263 Analyzer a = new MockAnalyzer(random, MockTokenizer.WHITESPACE, false);
264 assertQueryEquals("a&b", a, "a&b");
265 assertQueryEquals("a&&b", a, "a&&b");
266 assertQueryEquals(".NET", a, ".NET");
269 public void testSlop() throws Exception {
270 assertQueryEquals("\"term germ\"~2", null, "\"term germ\"~2");
271 assertQueryEquals("\"term germ\"~2 flork", null, "\"term germ\"~2 flork");
272 assertQueryEquals("\"term\"~2", null, "term");
273 assertQueryEquals("\" \"~2 germ", null, "germ");
274 assertQueryEquals("\"term germ\"~2^2", null, "\"term germ\"~2^2.0");
277 public void testNumber() throws Exception {
278 // The numbers go away because SimpleAnalzyer ignores them
279 assertQueryEquals("3", null, "");
280 assertQueryEquals("term 1.0 1 2", null, "term");
281 assertQueryEquals("term term1 term2", null, "term term term");
283 Analyzer a = new MockAnalyzer(random);
284 assertQueryEquals("3", a, "3");
285 assertQueryEquals("term 1.0 1 2", a, "term 1.0 1 2");
286 assertQueryEquals("term term1 term2", a, "term term1 term2");
289 public void testWildcard() throws Exception {
290 assertQueryEquals("term*", null, "term*");
291 assertQueryEquals("term*^2", null, "term*^2.0");
292 assertQueryEquals("term~", null, "term~0.5");
293 assertQueryEquals("term~0.7", null, "term~0.7");
294 assertQueryEquals("term~^3", null, "term~0.5^3.0");
295 assertQueryEquals("term^3~", null, "term~0.5^3.0");
296 assertQueryEquals("term*germ", null, "term*germ");
297 assertQueryEquals("term*germ^3", null, "term*germ^3.0");
299 assertTrue(getQuery("term*", null) instanceof PrefixQuery);
300 assertTrue(getQuery("term*^2", null) instanceof PrefixQuery);
301 assertTrue(getQuery("term~", null) instanceof FuzzyQuery);
302 assertTrue(getQuery("term~0.7", null) instanceof FuzzyQuery);
303 FuzzyQuery fq = (FuzzyQuery) getQuery("term~0.7", null);
304 assertEquals(0.7f, fq.getMinSimilarity(), 0.1f);
305 assertEquals(FuzzyQuery.defaultPrefixLength, fq.getPrefixLength());
306 fq = (FuzzyQuery) getQuery("term~", null);
307 assertEquals(0.5f, fq.getMinSimilarity(), 0.1f);
308 assertEquals(FuzzyQuery.defaultPrefixLength, fq.getPrefixLength());
310 getQuery("term~1.1", null); // value > 1, throws exception
312 } catch (ParseException pe) {
313 // expected exception
315 assertTrue(getQuery("term*germ", null) instanceof WildcardQuery);
318 * Tests to see that wild card terms are (or are not) properly lower-cased
319 * with propery parser configuration
321 // First prefix queries:
322 // by default, convert to lowercase:
323 assertWildcardQueryEquals("Term*", true, "term*");
324 // explicitly set lowercase:
325 assertWildcardQueryEquals("term*", true, "term*");
326 assertWildcardQueryEquals("Term*", true, "term*");
327 assertWildcardQueryEquals("TERM*", true, "term*");
328 // explicitly disable lowercase conversion:
329 assertWildcardQueryEquals("term*", false, "term*");
330 assertWildcardQueryEquals("Term*", false, "Term*");
331 assertWildcardQueryEquals("TERM*", false, "TERM*");
332 // Then 'full' wildcard queries:
333 // by default, convert to lowercase:
334 assertWildcardQueryEquals("Te?m", "te?m");
335 // explicitly set lowercase:
336 assertWildcardQueryEquals("te?m", true, "te?m");
337 assertWildcardQueryEquals("Te?m", true, "te?m");
338 assertWildcardQueryEquals("TE?M", true, "te?m");
339 assertWildcardQueryEquals("Te?m*gerM", true, "te?m*germ");
340 // explicitly disable lowercase conversion:
341 assertWildcardQueryEquals("te?m", false, "te?m");
342 assertWildcardQueryEquals("Te?m", false, "Te?m");
343 assertWildcardQueryEquals("TE?M", false, "TE?M");
344 assertWildcardQueryEquals("Te?m*gerM", false, "Te?m*gerM");
346 assertWildcardQueryEquals("Term~", "term~0.5");
347 assertWildcardQueryEquals("Term~", true, "term~0.5");
348 assertWildcardQueryEquals("Term~", false, "Term~0.5");
350 assertWildcardQueryEquals("[A TO C]", "[a TO c]");
351 assertWildcardQueryEquals("[A TO C]", true, "[a TO c]");
352 assertWildcardQueryEquals("[A TO C]", false, "[A TO C]");
355 public void testQPA() throws Exception {
356 assertQueryEquals("term term term", qpAnalyzer, "term term term");
357 assertQueryEquals("term +stop term", qpAnalyzer, "term term");
358 assertQueryEquals("term -stop term", qpAnalyzer, "term term");
359 assertQueryEquals("drop AND stop AND roll", qpAnalyzer, "+drop +roll");
360 assertQueryEquals("term phrase term", qpAnalyzer,
361 "term (phrase1 phrase2) term");
362 // note the parens in this next assertion differ from the original
363 // QueryParser behavior
364 assertQueryEquals("term AND NOT phrase term", qpAnalyzer,
365 "(+term -(phrase1 phrase2)) term");
366 assertQueryEquals("stop", qpAnalyzer, "");
367 assertQueryEquals("stop OR stop AND stop", qpAnalyzer, "");
368 assertTrue(getQuery("term term term", qpAnalyzer) instanceof BooleanQuery);
369 assertTrue(getQuery("term +stop", qpAnalyzer) instanceof TermQuery);
372 public void testRange() throws Exception {
373 assertQueryEquals("[ a TO z]", null, "[a TO z]");
374 assertTrue(getQuery("[ a TO z]", null) instanceof TermRangeQuery);
375 assertQueryEquals("[ a TO z ]", null, "[a TO z]");
376 assertQueryEquals("{ a TO z}", null, "{a TO z}");
377 assertQueryEquals("{ a TO z }", null, "{a TO z}");
378 assertQueryEquals("{ a TO z }^2.0", null, "{a TO z}^2.0");
379 assertQueryEquals("[ a TO z] OR bar", null, "[a TO z] bar");
380 assertQueryEquals("[ a TO z] AND bar", null, "+[a TO z] +bar");
381 assertQueryEquals("( bar blar { a TO z}) ", null, "bar blar {a TO z}");
382 assertQueryEquals("gack ( bar blar { a TO z}) ", null,
383 "gack (bar blar {a TO z})");
386 private String escapeDateString(String s) {
387 if (s.contains(" ")) {
388 return "\"" + s + "\"";
394 public String getDate(String s) throws Exception {
395 DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT);
396 return DateTools.dateToString(df.parse(s), DateTools.Resolution.DAY);
399 private String getLocalizedDate(int year, int month, int day,
400 boolean extendLastDate) {
401 DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT);
402 Calendar calendar = new GregorianCalendar();
403 calendar.set(year, month, day);
404 if (extendLastDate) {
405 calendar.set(Calendar.HOUR_OF_DAY, 23);
406 calendar.set(Calendar.MINUTE, 59);
407 calendar.set(Calendar.SECOND, 59);
408 calendar.set(Calendar.MILLISECOND, 999);
410 return df.format(calendar.getTime());
413 public void testDateRange() throws Exception {
414 String startDate = getLocalizedDate(2002, 1, 1, false);
415 String endDate = getLocalizedDate(2002, 1, 4, false);
416 Calendar endDateExpected = new GregorianCalendar();
417 endDateExpected.set(2002, 1, 4, 23, 59, 59);
418 endDateExpected.set(Calendar.MILLISECOND, 999);
419 final String defaultField = "default";
420 final String monthField = "month";
421 final String hourField = "hour";
422 PrecedenceQueryParser qp = new PrecedenceQueryParser(new MockAnalyzer(random));
424 // Don't set any date resolution and verify if DateField is used
425 assertDateRangeQueryEquals(qp, defaultField, startDate, endDate,
426 endDateExpected.getTime(), null);
428 Map<CharSequence, DateTools.Resolution> fieldMap = new HashMap<CharSequence,DateTools.Resolution>();
429 // set a field specific date resolution
430 fieldMap.put(monthField, DateTools.Resolution.MONTH);
431 qp.setDateResolution(fieldMap);
433 // DateField should still be used for defaultField
434 assertDateRangeQueryEquals(qp, defaultField, startDate, endDate,
435 endDateExpected.getTime(), null);
437 // set default date resolution to MILLISECOND
438 qp.setDateResolution(DateTools.Resolution.MILLISECOND);
440 // set second field specific date resolution
441 fieldMap.put(hourField, DateTools.Resolution.HOUR);
442 qp.setDateResolution(fieldMap);
444 // for this field no field specific date resolution has been set,
445 // so verify if the default resolution is used
446 assertDateRangeQueryEquals(qp, defaultField, startDate, endDate,
447 endDateExpected.getTime(), DateTools.Resolution.MILLISECOND);
449 // verify if field specific date resolutions are used for these two fields
450 assertDateRangeQueryEquals(qp, monthField, startDate, endDate,
451 endDateExpected.getTime(), DateTools.Resolution.MONTH);
453 assertDateRangeQueryEquals(qp, hourField, startDate, endDate,
454 endDateExpected.getTime(), DateTools.Resolution.HOUR);
457 /** for testing DateTools support */
458 private String getDate(String s, DateTools.Resolution resolution)
460 DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT);
461 return getDate(df.parse(s), resolution);
464 /** for testing DateTools support */
465 private String getDate(Date d, DateTools.Resolution resolution)
467 if (resolution == null) {
468 return DateField.dateToString(d);
470 return DateTools.dateToString(d, resolution);
474 public void assertQueryEquals(PrecedenceQueryParser qp, String field, String query,
475 String result) throws Exception {
476 Query q = qp.parse(query, field);
477 String s = q.toString(field);
478 if (!s.equals(result)) {
479 fail("Query /" + query + "/ yielded /" + s + "/, expecting /" + result
484 public void assertDateRangeQueryEquals(PrecedenceQueryParser qp, String field,
485 String startDate, String endDate, Date endDateInclusive,
486 DateTools.Resolution resolution) throws Exception {
487 assertQueryEquals(qp, field, field + ":[" + escapeDateString(startDate)
488 + " TO " + escapeDateString(endDate) + "]", "["
489 + getDate(startDate, resolution) + " TO "
490 + getDate(endDateInclusive, resolution) + "]");
491 assertQueryEquals(qp, field, field + ":{" + escapeDateString(startDate)
492 + " TO " + escapeDateString(endDate) + "}", "{"
493 + getDate(startDate, resolution) + " TO "
494 + getDate(endDate, resolution) + "}");
497 public void testEscaped() throws Exception {
498 Analyzer a = new MockAnalyzer(random, MockTokenizer.WHITESPACE, false);
500 assertQueryEquals("a\\-b:c", a, "a-b:c");
501 assertQueryEquals("a\\+b:c", a, "a+b:c");
502 assertQueryEquals("a\\:b:c", a, "a:b:c");
503 assertQueryEquals("a\\\\b:c", a, "a\\b:c");
505 assertQueryEquals("a:b\\-c", a, "a:b-c");
506 assertQueryEquals("a:b\\+c", a, "a:b+c");
507 assertQueryEquals("a:b\\:c", a, "a:b:c");
508 assertQueryEquals("a:b\\\\c", a, "a:b\\c");
510 assertQueryEquals("a:b\\-c*", a, "a:b-c*");
511 assertQueryEquals("a:b\\+c*", a, "a:b+c*");
512 assertQueryEquals("a:b\\:c*", a, "a:b:c*");
514 assertQueryEquals("a:b\\\\c*", a, "a:b\\c*");
516 assertQueryEquals("a:b\\-?c", a, "a:b-?c");
517 assertQueryEquals("a:b\\+?c", a, "a:b+?c");
518 assertQueryEquals("a:b\\:?c", a, "a:b:?c");
520 assertQueryEquals("a:b\\\\?c", a, "a:b\\?c");
522 assertQueryEquals("a:b\\-c~", a, "a:b-c~0.5");
523 assertQueryEquals("a:b\\+c~", a, "a:b+c~0.5");
524 assertQueryEquals("a:b\\:c~", a, "a:b:c~0.5");
525 assertQueryEquals("a:b\\\\c~", a, "a:b\\c~0.5");
527 assertQueryEquals("[ a\\- TO a\\+ ]", null, "[a- TO a+]");
528 assertQueryEquals("[ a\\: TO a\\~ ]", null, "[a: TO a~]");
529 assertQueryEquals("[ a\\\\ TO a\\* ]", null, "[a\\ TO a*]");
532 public void testTabNewlineCarriageReturn() throws Exception {
533 assertQueryEqualsDOA("+weltbank +worlbank", null, "+weltbank +worlbank");
535 assertQueryEqualsDOA("+weltbank\n+worlbank", null, "+weltbank +worlbank");
536 assertQueryEqualsDOA("weltbank \n+worlbank", null, "+weltbank +worlbank");
537 assertQueryEqualsDOA("weltbank \n +worlbank", null, "+weltbank +worlbank");
539 assertQueryEqualsDOA("+weltbank\r+worlbank", null, "+weltbank +worlbank");
540 assertQueryEqualsDOA("weltbank \r+worlbank", null, "+weltbank +worlbank");
541 assertQueryEqualsDOA("weltbank \r +worlbank", null, "+weltbank +worlbank");
543 assertQueryEqualsDOA("+weltbank\r\n+worlbank", null, "+weltbank +worlbank");
544 assertQueryEqualsDOA("weltbank \r\n+worlbank", null, "+weltbank +worlbank");
545 assertQueryEqualsDOA("weltbank \r\n +worlbank", null, "+weltbank +worlbank");
546 assertQueryEqualsDOA("weltbank \r \n +worlbank", null,
547 "+weltbank +worlbank");
549 assertQueryEqualsDOA("+weltbank\t+worlbank", null, "+weltbank +worlbank");
550 assertQueryEqualsDOA("weltbank \t+worlbank", null, "+weltbank +worlbank");
551 assertQueryEqualsDOA("weltbank \t +worlbank", null, "+weltbank +worlbank");
554 public void testSimpleDAO() throws Exception {
555 assertQueryEqualsDOA("term term term", null, "+term +term +term");
556 assertQueryEqualsDOA("term +term term", null, "+term +term +term");
557 assertQueryEqualsDOA("term term +term", null, "+term +term +term");
558 assertQueryEqualsDOA("term +term +term", null, "+term +term +term");
559 assertQueryEqualsDOA("-term term term", null, "-term +term +term");
562 public void testBoost() throws Exception {
563 StandardAnalyzer oneStopAnalyzer = new StandardAnalyzer(TEST_VERSION_CURRENT, Collections.singleton("on"));
565 PrecedenceQueryParser qp = new PrecedenceQueryParser();
566 qp.setAnalyzer(oneStopAnalyzer);
567 Query q = qp.parse("on^1.0", "field");
569 q = qp.parse("\"hello\"^2.0", "field");
571 assertEquals(q.getBoost(), (float) 2.0, (float) 0.5);
572 q = qp.parse("hello^2.0", "field");
574 assertEquals(q.getBoost(), (float) 2.0, (float) 0.5);
575 q = qp.parse("\"on\"^1.0", "field");
578 q = getParser(new StandardAnalyzer(TEST_VERSION_CURRENT)).parse("the^3", "field");
582 public void testException() throws Exception {
584 assertQueryEquals("\"some phrase", null, "abc");
585 fail("ParseException expected, not thrown");
586 } catch (QueryNodeParseException expected) {
590 public void testBooleanQuery() throws Exception {
591 BooleanQuery.setMaxClauseCount(2);
593 getParser(new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)).parse("one two three", "field");
594 fail("ParseException expected due to too many boolean clauses");
595 } catch (QueryNodeException expected) {
596 // too many boolean clauses, so ParseException is expected
601 public void testNOT() throws Exception {
602 Analyzer a = new MockAnalyzer(random, MockTokenizer.WHITESPACE, false);
603 assertQueryEquals("NOT foo AND bar", a, "-foo +bar");
607 * This test differs from the original QueryParser, showing how the precedence
608 * issue has been corrected.
610 public void testPrecedence() throws Exception {
611 PrecedenceQueryParser parser = getParser(new MockAnalyzer(random, MockTokenizer.WHITESPACE, false));
612 Query query1 = parser.parse("A AND B OR C AND D", "field");
613 Query query2 = parser.parse("(A AND B) OR (C AND D)", "field");
614 assertEquals(query1, query2);
616 query1 = parser.parse("A OR B C", "field");
617 query2 = parser.parse("(A B) C", "field");
618 assertEquals(query1, query2);
620 query1 = parser.parse("A AND B C", "field");
621 query2 = parser.parse("(+A +B) C", "field");
622 assertEquals(query1, query2);
624 query1 = parser.parse("A AND NOT B", "field");
625 query2 = parser.parse("+A -B", "field");
626 assertEquals(query1, query2);
628 query1 = parser.parse("A OR NOT B", "field");
629 query2 = parser.parse("A -B", "field");
630 assertEquals(query1, query2);
632 query1 = parser.parse("A OR NOT B AND C", "field");
633 query2 = parser.parse("A (-B +C)", "field");
634 assertEquals(query1, query2);
636 parser.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);
637 query1 = parser.parse("A AND B OR C AND D", "field");
638 query2 = parser.parse("(A AND B) OR (C AND D)", "field");
639 assertEquals(query1, query2);
641 query1 = parser.parse("A AND B C", "field");
642 query2 = parser.parse("(A B) C", "field");
643 assertEquals(query1, query2);
645 query1 = parser.parse("A AND B C", "field");
646 query2 = parser.parse("(+A +B) C", "field");
647 assertEquals(query1, query2);
649 query1 = parser.parse("A AND NOT B", "field");
650 query2 = parser.parse("+A -B", "field");
651 assertEquals(query1, query2);
653 query1 = parser.parse("A AND NOT B OR C", "field");
654 query2 = parser.parse("(+A -B) OR C", "field");
655 assertEquals(query1, query2);
660 public void tearDown() throws Exception {
661 BooleanQuery.setMaxClauseCount(originalMaxClauses);