package org.apache.lucene.queryparser.flexible.precedence;
/*
* 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.Reader;
import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;
import org.apache.lucene.analysis.*;
import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.apache.lucene.document.DateTools;
import org.apache.lucene.queryparser.flexible.core.QueryNodeException;
import org.apache.lucene.queryparser.flexible.core.QueryNodeParseException;
import org.apache.lucene.queryparser.flexible.standard.config.StandardQueryConfigHandler;
import org.apache.lucene.queryparser.flexible.standard.parser.ParseException;
import org.apache.lucene.queryparser.util.QueryParserTestBase; // javadocs
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.FuzzyQuery;
import org.apache.lucene.search.PhraseQuery;
import org.apache.lucene.search.PrefixQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TermRangeQuery;
import org.apache.lucene.search.WildcardQuery;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.automaton.BasicAutomata;
import org.apache.lucene.util.automaton.CharacterRunAutomaton;
/**
* <p>
* This test case tests {@link PrecedenceQueryParser}.
* </p>
* <p>
* It contains all tests from {@link QueryParserTestBase}
* with some adjusted to fit the precedence requirement, plus some precedence test cases.
* </p>
*
* @see QueryParserTestBase
*/
//TODO: refactor this to actually extend that class, overriding the tests
//that it adjusts to fit the precedence requirement, adding its extra tests.
public class TestPrecedenceQueryParser extends LuceneTestCase {
public static Analyzer qpAnalyzer = new QPTestAnalyzer();
public static final class QPTestFilter extends TokenFilter {
/**
* Filter which discards the token 'stop' and which expands the token
* 'phrase' into 'phrase1 phrase2'
*/
public QPTestFilter(TokenStream in) {
super(in);
}
private boolean inPhrase = false;
private int savedStart = 0;
private int savedEnd = 0;
private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class);
@Override
public boolean incrementToken() throws IOException {
if (inPhrase) {
inPhrase = false;
termAtt.setEmpty().append("phrase2");
offsetAtt.setOffset(savedStart, savedEnd);
return true;
} else
while (input.incrementToken())
if (termAtt.toString().equals("phrase")) {
inPhrase = true;
savedStart = offsetAtt.startOffset();
savedEnd = offsetAtt.endOffset();
termAtt.setEmpty().append("phrase1");
offsetAtt.setOffset(savedStart, savedEnd);
return true;
} else if (!termAtt.toString().equals("stop"))
return true;
return false;
}
@Override
public void reset() throws IOException {
super.reset();
this.inPhrase = false;
this.savedStart = 0;
this.savedEnd = 0;
}
}
public static final class QPTestAnalyzer extends Analyzer {
/** Filters MockTokenizer with StopFilter. */
@Override
public final TokenStreamComponents createComponents(String fieldName, Reader reader) {
Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.SIMPLE, true);
return new TokenStreamComponents(tokenizer, new QPTestFilter(tokenizer));
}
}
private int originalMaxClauses;
@Override
public void setUp() throws Exception {
super.setUp();
originalMaxClauses = BooleanQuery.getMaxClauseCount();
}
public PrecedenceQueryParser getParser(Analyzer a) throws Exception {
if (a == null)
a = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true);
PrecedenceQueryParser qp = new PrecedenceQueryParser();
qp.setAnalyzer(a);
qp.setDefaultOperator(StandardQueryConfigHandler.Operator.OR);
return qp;
}
public Query getQuery(String query, Analyzer a) throws Exception {
return getParser(a).parse(query, "field");
}
public void assertQueryEquals(String query, Analyzer a, String result)
throws Exception {
Query q = getQuery(query, a);
String s = q.toString("field");
if (!s.equals(result)) {
fail("Query /" + query + "/ yielded /" + s + "/, expecting /" + result
+ "/");
}
}
public void assertWildcardQueryEquals(String query, boolean lowercase,
String result) throws Exception {
PrecedenceQueryParser qp = getParser(null);
qp.setLowercaseExpandedTerms(lowercase);
Query q = qp.parse(query, "field");
String s = q.toString("field");
if (!s.equals(result)) {
fail("WildcardQuery /" + query + "/ yielded /" + s + "/, expecting /"
+ result + "/");
}
}
public void assertWildcardQueryEquals(String query, String result)
throws Exception {
PrecedenceQueryParser qp = getParser(null);
Query q = qp.parse(query, "field");
String s = q.toString("field");
if (!s.equals(result)) {
fail("WildcardQuery /" + query + "/ yielded /" + s + "/, expecting /"
+ result + "/");
}
}
public Query getQueryDOA(String query, Analyzer a) throws Exception {
if (a == null)
a = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true);
PrecedenceQueryParser qp = new PrecedenceQueryParser();
qp.setAnalyzer(a);
qp.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);
return qp.parse(query, "field");
}
public void assertQueryEqualsDOA(String query, Analyzer a, String result)
throws Exception {
Query q = getQueryDOA(query, a);
String s = q.toString("field");
if (!s.equals(result)) {
fail("Query /" + query + "/ yielded /" + s + "/, expecting /" + result
+ "/");
}
}
public void testSimple() throws Exception {
assertQueryEquals("term term term", null, "term term term");
assertQueryEquals("türm term term", null, "türm term term");
assertQueryEquals("ümlaut", null, "ümlaut");
assertQueryEquals("a AND b", null, "+a +b");
assertQueryEquals("(a AND b)", null, "+a +b");
assertQueryEquals("c OR (a AND b)", null, "c (+a +b)");
assertQueryEquals("a AND NOT b", null, "+a -b");
assertQueryEquals("a AND -b", null, "+a -b");
assertQueryEquals("a AND !b", null, "+a -b");
assertQueryEquals("a && b", null, "+a +b");
assertQueryEquals("a && ! b", null, "+a -b");
assertQueryEquals("a OR b", null, "a b");
assertQueryEquals("a || b", null, "a b");
assertQueryEquals("+term -term term", null, "+term -term term");
assertQueryEquals("foo:term AND field:anotherTerm", null,
"+foo:term +anotherterm");
assertQueryEquals("term AND \"phrase phrase\"", null,
"+term +\"phrase phrase\"");
assertQueryEquals("\"hello there\"", null, "\"hello there\"");
assertTrue(getQuery("a AND b", null) instanceof BooleanQuery);
assertTrue(getQuery("hello", null) instanceof TermQuery);
assertTrue(getQuery("\"hello there\"", null) instanceof PhraseQuery);
assertQueryEquals("germ term^2.0", null, "germ term^2.0");
assertQueryEquals("(term)^2.0", null, "term^2.0");
assertQueryEquals("(germ term)^2.0", null, "(germ term)^2.0");
assertQueryEquals("term^2.0", null, "term^2.0");
assertQueryEquals("term^2", null, "term^2.0");
assertQueryEquals("\"germ term\"^2.0", null, "\"germ term\"^2.0");
assertQueryEquals("\"term germ\"^2", null, "\"term germ\"^2.0");
assertQueryEquals("(foo OR bar) AND (baz OR boo)", null,
"+(foo bar) +(baz boo)");
assertQueryEquals("((a OR b) AND NOT c) OR d", null, "(+(a b) -c) d");
assertQueryEquals("+(apple \"steve jobs\") -(foo bar baz)", null,
"+(apple \"steve jobs\") -(foo bar baz)");
assertQueryEquals("+title:(dog OR cat) -author:\"bob dole\"", null,
"+(title:dog title:cat) -author:\"bob dole\"");
PrecedenceQueryParser qp = new PrecedenceQueryParser();
qp.setAnalyzer(new MockAnalyzer(random()));
// make sure OR is the default:
assertEquals(StandardQueryConfigHandler.Operator.OR, qp.getDefaultOperator());
qp.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);
assertEquals(StandardQueryConfigHandler.Operator.AND, qp.getDefaultOperator());
qp.setDefaultOperator(StandardQueryConfigHandler.Operator.OR);
assertEquals(StandardQueryConfigHandler.Operator.OR, qp.getDefaultOperator());
assertQueryEquals("a OR !b", null, "a -b");
assertQueryEquals("a OR ! b", null, "a -b");
assertQueryEquals("a OR -b", null, "a -b");
}
public void testPunct() throws Exception {
Analyzer a = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);
assertQueryEquals("a&b", a, "a&b");
assertQueryEquals("a&&b", a, "a&&b");
assertQueryEquals(".NET", a, ".NET");
}
public void testSlop() throws Exception {
assertQueryEquals("\"term germ\"~2", null, "\"term germ\"~2");
assertQueryEquals("\"term germ\"~2 flork", null, "\"term germ\"~2 flork");
assertQueryEquals("\"term\"~2", null, "term");
assertQueryEquals("\" \"~2 germ", null, "germ");
assertQueryEquals("\"term germ\"~2^2", null, "\"term germ\"~2^2.0");
}
public void testNumber() throws Exception {
// The numbers go away because SimpleAnalzyer ignores them
assertQueryEquals("3", null, "");
assertQueryEquals("term 1.0 1 2", null, "term");
assertQueryEquals("term term1 term2", null, "term term term");
Analyzer a = new MockAnalyzer(random());
assertQueryEquals("3", a, "3");
assertQueryEquals("term 1.0 1 2", a, "term 1.0 1 2");
assertQueryEquals("term term1 term2", a, "term term1 term2");
}
public void testWildcard() throws Exception {
assertQueryEquals("term*", null, "term*");
assertQueryEquals("term*^2", null, "term*^2.0");
assertQueryEquals("term~", null, "term~2");
assertQueryEquals("term~0.7", null, "term~1");
assertQueryEquals("term~^3", null, "term~2^3.0");
assertQueryEquals("term^3~", null, "term~2^3.0");
assertQueryEquals("term*germ", null, "term*germ");
assertQueryEquals("term*germ^3", null, "term*germ^3.0");
assertTrue(getQuery("term*", null) instanceof PrefixQuery);
assertTrue(getQuery("term*^2", null) instanceof PrefixQuery);
assertTrue(getQuery("term~", null) instanceof FuzzyQuery);
assertTrue(getQuery("term~0.7", null) instanceof FuzzyQuery);
FuzzyQuery fq = (FuzzyQuery) getQuery("term~0.7", null);
assertEquals(1, fq.getMaxEdits());
assertEquals(FuzzyQuery.defaultPrefixLength, fq.getPrefixLength());
fq = (FuzzyQuery) getQuery("term~", null);
assertEquals(2, fq.getMaxEdits());
assertEquals(FuzzyQuery.defaultPrefixLength, fq.getPrefixLength());
try {
getQuery("term~1.1", null); // value > 1, throws exception
fail();
} catch (ParseException pe) {
// expected exception
}
assertTrue(getQuery("term*germ", null) instanceof WildcardQuery);
/*
* Tests to see that wild card terms are (or are not) properly lower-cased
* with propery parser configuration
*/
// First prefix queries:
// by default, convert to lowercase:
assertWildcardQueryEquals("Term*", true, "term*");
// explicitly set lowercase:
assertWildcardQueryEquals("term*", true, "term*");
assertWildcardQueryEquals("Term*", true, "term*");
assertWildcardQueryEquals("TERM*", true, "term*");
// explicitly disable lowercase conversion:
assertWildcardQueryEquals("term*", false, "term*");
assertWildcardQueryEquals("Term*", false, "Term*");
assertWildcardQueryEquals("TERM*", false, "TERM*");
// Then 'full' wildcard queries:
// by default, convert to lowercase:
assertWildcardQueryEquals("Te?m", "te?m");
// explicitly set lowercase:
assertWildcardQueryEquals("te?m", true, "te?m");
assertWildcardQueryEquals("Te?m", true, "te?m");
assertWildcardQueryEquals("TE?M", true, "te?m");
assertWildcardQueryEquals("Te?m*gerM", true, "te?m*germ");
// explicitly disable lowercase conversion:
assertWildcardQueryEquals("te?m", false, "te?m");
assertWildcardQueryEquals("Te?m", false, "Te?m");
assertWildcardQueryEquals("TE?M", false, "TE?M");
assertWildcardQueryEquals("Te?m*gerM", false, "Te?m*gerM");
// Fuzzy queries:
assertWildcardQueryEquals("Term~", "term~2");
assertWildcardQueryEquals("Term~", true, "term~2");
assertWildcardQueryEquals("Term~", false, "Term~2");
// Range queries:
assertWildcardQueryEquals("[A TO C]", "[a TO c]");
assertWildcardQueryEquals("[A TO C]", true, "[a TO c]");
assertWildcardQueryEquals("[A TO C]", false, "[A TO C]");
}
public void testQPA() throws Exception {
assertQueryEquals("term term term", qpAnalyzer, "term term term");
assertQueryEquals("term +stop term", qpAnalyzer, "term term");
assertQueryEquals("term -stop term", qpAnalyzer, "term term");
assertQueryEquals("drop AND stop AND roll", qpAnalyzer, "+drop +roll");
assertQueryEquals("term phrase term", qpAnalyzer,
"term (phrase1 phrase2) term");
// note the parens in this next assertion differ from the original
// QueryParser behavior
assertQueryEquals("term AND NOT phrase term", qpAnalyzer,
"(+term -(phrase1 phrase2)) term");
assertQueryEquals("stop", qpAnalyzer, "");
assertQueryEquals("stop OR stop AND stop", qpAnalyzer, "");
assertTrue(getQuery("term term term", qpAnalyzer) instanceof BooleanQuery);
assertTrue(getQuery("term +stop", qpAnalyzer) instanceof TermQuery);
}
public void testRange() throws Exception {
assertQueryEquals("[ a TO z]", null, "[a TO z]");
assertTrue(getQuery("[ a TO z]", null) instanceof TermRangeQuery);
assertQueryEquals("[ a TO z ]", null, "[a TO z]");
assertQueryEquals("{ a TO z}", null, "{a TO z}");
assertQueryEquals("{ a TO z }", null, "{a TO z}");
assertQueryEquals("{ a TO z }^2.0", null, "{a TO z}^2.0");
assertQueryEquals("[ a TO z] OR bar", null, "[a TO z] bar");
assertQueryEquals("[ a TO z] AND bar", null, "+[a TO z] +bar");
assertQueryEquals("( bar blar { a TO z}) ", null, "bar blar {a TO z}");
assertQueryEquals("gack ( bar blar { a TO z}) ", null,
"gack (bar blar {a TO z})");
}
private String escapeDateString(String s) {
if (s.contains(" ")) {
return "\"" + s + "\"";
} else {
return s;
}
}
public String getDate(String s) throws Exception {
// we use the default Locale since LuceneTestCase randomizes it
DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, Locale.getDefault());
return DateTools.dateToString(df.parse(s), DateTools.Resolution.DAY);
}
private String getLocalizedDate(int year, int month, int day,
boolean extendLastDate) {
// we use the default Locale/TZ since LuceneTestCase randomizes it
DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, Locale.getDefault());
Calendar calendar = new GregorianCalendar(TimeZone.getDefault(), Locale.getDefault());
calendar.set(year, month, day);
if (extendLastDate) {
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
calendar.set(Calendar.MILLISECOND, 999);
}
return df.format(calendar.getTime());
}
public void testDateRange() throws Exception {
String startDate = getLocalizedDate(2002, 1, 1, false);
String endDate = getLocalizedDate(2002, 1, 4, false);
// we use the default Locale/TZ since LuceneTestCase randomizes it
Calendar endDateExpected = new GregorianCalendar(TimeZone.getDefault(), Locale.getDefault());
endDateExpected.set(2002, 1, 4, 23, 59, 59);
endDateExpected.set(Calendar.MILLISECOND, 999);
final String defaultField = "default";
final String monthField = "month";
final String hourField = "hour";
PrecedenceQueryParser qp = new PrecedenceQueryParser(new MockAnalyzer(random()));
Map<CharSequence, DateTools.Resolution> fieldMap = new HashMap<CharSequence,DateTools.Resolution>();
// set a field specific date resolution
fieldMap.put(monthField, DateTools.Resolution.MONTH);
qp.setDateResolution(fieldMap);
// set default date resolution to MILLISECOND
qp.setDateResolution(DateTools.Resolution.MILLISECOND);
// set second field specific date resolution
fieldMap.put(hourField, DateTools.Resolution.HOUR);
qp.setDateResolution(fieldMap);
// for this field no field specific date resolution has been set,
// so verify if the default resolution is used
assertDateRangeQueryEquals(qp, defaultField, startDate, endDate,
endDateExpected.getTime(), DateTools.Resolution.MILLISECOND);
// verify if field specific date resolutions are used for these two fields
assertDateRangeQueryEquals(qp, monthField, startDate, endDate,
endDateExpected.getTime(), DateTools.Resolution.MONTH);
assertDateRangeQueryEquals(qp, hourField, startDate, endDate,
endDateExpected.getTime(), DateTools.Resolution.HOUR);
}
/** for testing DateTools support */
private String getDate(String s, DateTools.Resolution resolution) throws Exception {
// we use the default Locale since LuceneTestCase randomizes it
DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, Locale.getDefault());
return getDate(df.parse(s), resolution);
}
/** for testing DateTools support */
private String getDate(Date d, DateTools.Resolution resolution) {
return DateTools.dateToString(d, resolution);
}
public void assertQueryEquals(PrecedenceQueryParser qp, String field, String query,
String result) throws Exception {
Query q = qp.parse(query, field);
String s = q.toString(field);
if (!s.equals(result)) {
fail("Query /" + query + "/ yielded /" + s + "/, expecting /" + result
+ "/");
}
}
public void assertDateRangeQueryEquals(PrecedenceQueryParser qp, String field,
String startDate, String endDate, Date endDateInclusive,
DateTools.Resolution resolution) throws Exception {
assertQueryEquals(qp, field, field + ":[" + escapeDateString(startDate)
+ " TO " + escapeDateString(endDate) + "]", "["
+ getDate(startDate, resolution) + " TO "
+ getDate(endDateInclusive, resolution) + "]");
assertQueryEquals(qp, field, field + ":{" + escapeDateString(startDate)
+ " TO " + escapeDateString(endDate) + "}", "{"
+ getDate(startDate, resolution) + " TO "
+ getDate(endDate, resolution) + "}");
}
public void testEscaped() throws Exception {
Analyzer a = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);
assertQueryEquals("a\\-b:c", a, "a-b:c");
assertQueryEquals("a\\+b:c", a, "a+b:c");
assertQueryEquals("a\\:b:c", a, "a:b:c");
assertQueryEquals("a\\\\b:c", a, "a\\b:c");
assertQueryEquals("a:b\\-c", a, "a:b-c");
assertQueryEquals("a:b\\+c", a, "a:b+c");
assertQueryEquals("a:b\\:c", a, "a:b:c");
assertQueryEquals("a:b\\\\c", a, "a:b\\c");
assertQueryEquals("a:b\\-c*", a, "a:b-c*");
assertQueryEquals("a:b\\+c*", a, "a:b+c*");
assertQueryEquals("a:b\\:c*", a, "a:b:c*");
assertQueryEquals("a:b\\\\c*", a, "a:b\\c*");
assertQueryEquals("a:b\\-?c", a, "a:b-?c");
assertQueryEquals("a:b\\+?c", a, "a:b+?c");
assertQueryEquals("a:b\\:?c", a, "a:b:?c");
assertQueryEquals("a:b\\\\?c", a, "a:b\\?c");
assertQueryEquals("a:b\\-c~", a, "a:b-c~2");
assertQueryEquals("a:b\\+c~", a, "a:b+c~2");
assertQueryEquals("a:b\\:c~", a, "a:b:c~2");
assertQueryEquals("a:b\\\\c~", a, "a:b\\c~2");
assertQueryEquals("[ a\\- TO a\\+ ]", null, "[a- TO a+]");
assertQueryEquals("[ a\\: TO a\\~ ]", null, "[a: TO a~]");
assertQueryEquals("[ a\\\\ TO a\\* ]", null, "[a\\ TO a*]");
}
public void testTabNewlineCarriageReturn() throws Exception {
assertQueryEqualsDOA("+weltbank +worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("+weltbank\n+worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \n+worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \n +worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("+weltbank\r+worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \r+worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \r +worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("+weltbank\r\n+worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \r\n+worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \r\n +worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \r \n +worlbank", null,
"+weltbank +worlbank");
assertQueryEqualsDOA("+weltbank\t+worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \t+worlbank", null, "+weltbank +worlbank");
assertQueryEqualsDOA("weltbank \t +worlbank", null, "+weltbank +worlbank");
}
public void testSimpleDAO() throws Exception {
assertQueryEqualsDOA("term term term", null, "+term +term +term");
assertQueryEqualsDOA("term +term term", null, "+term +term +term");
assertQueryEqualsDOA("term term +term", null, "+term +term +term");
assertQueryEqualsDOA("term +term +term", null, "+term +term +term");
assertQueryEqualsDOA("-term term term", null, "-term +term +term");
}
public void testBoost() throws Exception {
CharacterRunAutomaton stopSet = new CharacterRunAutomaton(BasicAutomata.makeString("on"));
Analyzer oneStopAnalyzer = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true, stopSet);
PrecedenceQueryParser qp = new PrecedenceQueryParser();
qp.setAnalyzer(oneStopAnalyzer);
Query q = qp.parse("on^1.0", "field");
assertNotNull(q);
q = qp.parse("\"hello\"^2.0", "field");
assertNotNull(q);
assertEquals(q.getBoost(), (float) 2.0, (float) 0.5);
q = qp.parse("hello^2.0", "field");
assertNotNull(q);
assertEquals(q.getBoost(), (float) 2.0, (float) 0.5);
q = qp.parse("\"on\"^1.0", "field");
assertNotNull(q);
q = getParser(new MockAnalyzer(random(), MockTokenizer.SIMPLE, true, MockTokenFilter.ENGLISH_STOPSET)).parse("the^3",
"field");
assertNotNull(q);
}
public void testException() throws Exception {
try {
assertQueryEquals("\"some phrase", null, "abc");
fail("ParseException expected, not thrown");
} catch (QueryNodeParseException expected) {
}
}
public void testBooleanQuery() throws Exception {
BooleanQuery.setMaxClauseCount(2);
try {
getParser(new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false)).parse("one two three", "field");
fail("ParseException expected due to too many boolean clauses");
} catch (QueryNodeException expected) {
// too many boolean clauses, so ParseException is expected
}
}
// LUCENE-792
public void testNOT() throws Exception {
Analyzer a = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);
assertQueryEquals("NOT foo AND bar", a, "-foo +bar");
}
/**
* This test differs from the original QueryParser, showing how the precedence
* issue has been corrected.
*/
public void testPrecedence() throws Exception {
PrecedenceQueryParser parser = getParser(new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false));
Query query1 = parser.parse("A AND B OR C AND D", "field");
Query query2 = parser.parse("(A AND B) OR (C AND D)", "field");
assertEquals(query1, query2);
query1 = parser.parse("A OR B C", "field");
query2 = parser.parse("(A B) C", "field");
assertEquals(query1, query2);
query1 = parser.parse("A AND B C", "field");
query2 = parser.parse("(+A +B) C", "field");
assertEquals(query1, query2);
query1 = parser.parse("A AND NOT B", "field");
query2 = parser.parse("+A -B", "field");
assertEquals(query1, query2);
query1 = parser.parse("A OR NOT B", "field");
query2 = parser.parse("A -B", "field");
assertEquals(query1, query2);
query1 = parser.parse("A OR NOT B AND C", "field");
query2 = parser.parse("A (-B +C)", "field");
assertEquals(query1, query2);
parser.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);
query1 = parser.parse("A AND B OR C AND D", "field");
query2 = parser.parse("(A AND B) OR (C AND D)", "field");
assertEquals(query1, query2);
query1 = parser.parse("A AND B C", "field");
query2 = parser.parse("(A B) C", "field");
assertEquals(query1, query2);
query1 = parser.parse("A AND B C", "field");
query2 = parser.parse("(+A +B) C", "field");
assertEquals(query1, query2);
query1 = parser.parse("A AND NOT B", "field");
query2 = parser.parse("+A -B", "field");
assertEquals(query1, query2);
query1 = parser.parse("A AND NOT B OR C", "field");
query2 = parser.parse("(+A -B) OR C", "field");
assertEquals(query1, query2);
}
@Override
public void tearDown() throws Exception {
BooleanQuery.setMaxClauseCount(originalMaxClauses);
super.tearDown();
}
}