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* 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.

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//import org.apache.lucene.queryparser.classic.ParseException;

//import org.apache.lucene.queryparser.classic.QueryParser;

//import org.apache.lucene.queryparser.classic.QueryParserBase;

* Base Test class for QueryParser subclasses

*/

// to the core QP and subclass/use the parts that are not in the flexible QP

 

  public static Analyzer qpAnalyzer;

  @BeforeClass

  public static void beforeClass() {

    qpAnalyzer = new QPTestAnalyzer();

  }

  @AfterClass

  public static void afterClass() {

    qpAnalyzer = null;

  }

 

  public static final class QPTestFilter extends TokenFilter {

    CharTermAttribute termAtt;

    OffsetAttribute offsetAtt;

       

    /**

     * Filter which discards the token 'stop' and which expands the

     * token 'phrase' into 'phrase1 phrase2'

     */

    public QPTestFilter(TokenStream in) {

      super(in);

      termAtt = addAttribute(CharTermAttribute.class);

      offsetAtt = addAttribute(OffsetAttribute.class);

    }

    boolean inPhrase = false;

    int savedStart = 0, savedEnd = 0;

    @Override

    public boolean incrementToken() throws IOException {

      if (inPhrase) {

        inPhrase = false;

        clearAttributes();

        termAtt.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;

    }

  }

  public static final class QPTestAnalyzer extends Analyzer {

    /** Filters MockTokenizer with StopFilter. */

    @Override

    public TokenStreamComponents createComponents(String fieldName, Reader reader) {

      Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.SIMPLE, true);

      return new TokenStreamComponents(tokenizer, new QPTestFilter(tokenizer));

    }

  }

  private int originalMaxClauses;

 

  private String defaultField = "field";

 

  protected String getDefaultField(){

    return defaultField;

  }

  protected void setDefaultField(String defaultField){

    this.defaultField = defaultField;

  }

  @Override

  public void setUp() throws Exception {

    super.setUp();

    originalMaxClauses = BooleanQuery.getMaxClauseCount();

  }

  public abstract CommonQueryParserConfiguration getParserConfig(Analyzer a) throws Exception;

  public abstract void setDefaultOperatorOR(CommonQueryParserConfiguration cqpC);

  public abstract void setDefaultOperatorAND(CommonQueryParserConfiguration cqpC);

  public abstract void setAnalyzeRangeTerms(CommonQueryParserConfiguration cqpC, boolean value);

  public abstract void setAutoGeneratePhraseQueries(CommonQueryParserConfiguration cqpC, boolean value);

  public abstract void setDateResolution(CommonQueryParserConfiguration cqpC, CharSequence field, DateTools.Resolution value);

  public abstract Query getQuery(String query, CommonQueryParserConfiguration cqpC) throws Exception;

  public abstract Query getQuery(String query, Analyzer a) throws Exception;

 

  public abstract boolean isQueryParserException(Exception exception);

  public Query getQuery(String query) throws Exception {

    return getQuery(query, (Analyzer)null);

  }

  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 assertQueryEquals(CommonQueryParserConfiguration cqpC, String field, String query, String result)

    throws Exception {

    Query q = getQuery(query, cqpC);

    String s = q.toString(field);

    if (!s.equals(result)) {

      fail("Query /" + query + "/ yielded /" + s

           + "/, expecting /" + result + "/");

    }

  }

 

  public void assertEscapedQueryEquals(String query, Analyzer a, String result)

    throws Exception {

    String escapedQuery = QueryParserBase.escape(query);

    if (!escapedQuery.equals(result)) {

      fail("Query /" + query + "/ yielded /" + escapedQuery

          + "/, expecting /" + result + "/");

    }

  }

  public void assertWildcardQueryEquals(String query, boolean lowercase, String result, boolean allowLeadingWildcard)

    throws Exception {

    CommonQueryParserConfiguration cqpC = getParserConfig(null);

    cqpC.setLowercaseExpandedTerms(lowercase);

    cqpC.setAllowLeadingWildcard(allowLeadingWildcard);

    Query q = getQuery(query, cqpC);

    String s = q.toString("field");

    if (!s.equals(result)) {

      fail("WildcardQuery /" + query + "/ yielded /" + s

           + "/, expecting /" + result + "/");

    }

  }

  public void assertWildcardQueryEquals(String query, boolean lowercase, String result)

    throws Exception {

    assertWildcardQueryEquals(query, lowercase, result, false);

  }

  public void assertWildcardQueryEquals(String query, String result) throws Exception {

    Query q = getQuery(query);

    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);

    CommonQueryParserConfiguration qp = getParserConfig(a);

    setDefaultOperatorAND(qp);

    return getQuery(query, qp);

  }

  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 testCJK() throws Exception {

   // Test Ideographic Space - As wide as a CJK character cell (fullwidth)

   // used google to translate the word "term" to japanese -> 用語

   assertQueryEquals("term\u3000term\u3000term", null, "term\u0020term\u0020term");

   assertQueryEquals("用語\u3000用語\u3000用語", null, "用語\u0020用語\u0020用語");

  }

  //individual CJK chars as terms, like StandardAnalyzer

  protected static class SimpleCJKTokenizer extends Tokenizer {

    private CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);

    public SimpleCJKTokenizer(Reader input) {

      super(input);

    }

    @Override

    public final boolean incrementToken() throws IOException {

      int ch = input.read();

      if (ch < 0)

        return false;

      clearAttributes();

      termAtt.setEmpty().append((char) ch);

      return true;

    }

  }

  private class SimpleCJKAnalyzer extends Analyzer {

    @Override

    public TokenStreamComponents createComponents(String fieldName, Reader reader) {

      return new TokenStreamComponents(new SimpleCJKTokenizer(reader));

    }

  }

  public void testCJKTerm() throws Exception {

    // individual CJK chars as terms

    SimpleCJKAnalyzer analyzer = new SimpleCJKAnalyzer();

   

    BooleanQuery expected = new BooleanQuery();

    expected.add(new TermQuery(new Term("field", "中")), BooleanClause.Occur.SHOULD);

    expected.add(new TermQuery(new Term("field", "国")), BooleanClause.Occur.SHOULD);

   

    assertEquals(expected, getQuery("中国", analyzer));

  }

 

  public void testCJKBoostedTerm() throws Exception {

    // individual CJK chars as terms

    SimpleCJKAnalyzer analyzer = new SimpleCJKAnalyzer();

   

    BooleanQuery expected = new BooleanQuery();

    expected.setBoost(0.5f);

    expected.add(new TermQuery(new Term("field", "中")), BooleanClause.Occur.SHOULD);

    expected.add(new TermQuery(new Term("field", "国")), BooleanClause.Occur.SHOULD);

   

    assertEquals(expected, getQuery("中国^0.5", analyzer));

  }

 

  public void testCJKPhrase() throws Exception {

    // individual CJK chars as terms

    SimpleCJKAnalyzer analyzer = new SimpleCJKAnalyzer();

   

    PhraseQuery expected = new PhraseQuery();

    expected.add(new Term("field", "中"));

    expected.add(new Term("field", "国"));

   

    assertEquals(expected, getQuery("\"中国\"", analyzer));

  }

 

  public void testCJKBoostedPhrase() throws Exception {

    // individual CJK chars as terms

    SimpleCJKAnalyzer analyzer = new SimpleCJKAnalyzer();

   

    PhraseQuery expected = new PhraseQuery();

    expected.setBoost(0.5f);

    expected.add(new Term("field", "中"));

    expected.add(new Term("field", "国"));

   

    assertEquals(expected, getQuery("\"中国\"^0.5", analyzer));

  }

 

  public void testCJKSloppyPhrase() throws Exception {

    // individual CJK chars as terms

    SimpleCJKAnalyzer analyzer = new SimpleCJKAnalyzer();

   

    PhraseQuery expected = new PhraseQuery();

    expected.setSlop(3);

    expected.add(new Term("field", "中"));

    expected.add(new Term("field", "国"));

   

    assertEquals(expected, getQuery("\"中国\"~3", analyzer));

  }

 

  public void testAutoGeneratePhraseQueriesOn() throws Exception {

    // individual CJK chars as terms

    SimpleCJKAnalyzer analyzer = new SimpleCJKAnalyzer();

 

    PhraseQuery expected = new PhraseQuery();

    expected.add(new Term("field", "中"));

    expected.add(new Term("field", "国"));

    CommonQueryParserConfiguration qp = getParserConfig(analyzer);

    setAutoGeneratePhraseQueries(qp, true);

    assertEquals(expected, getQuery("中国",qp));

  }

  public void testSimple() throws Exception {

    assertQueryEquals("term term term", null, "term term term");

    assertQueryEquals("türm term term", new MockAnalyzer(random()), "türm term term");

    assertQueryEquals("ümlaut", new MockAnalyzer(random()), "ümlaut");

    // FIXME: enhance MockAnalyzer to be able to support this

    // it must no longer extend CharTokenizer

    //assertQueryEquals("\"\"", new KeywordAnalyzer(), "");

    //assertQueryEquals("foo:\"\"", new KeywordAnalyzer(), "foo:");

    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 OR b", null, "a b");

    assertQueryEquals("a || b", null, "a b");

    assertQueryEquals("a OR !b", null, "a -b");

    assertQueryEquals("a OR -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") instanceof BooleanQuery);

    assertTrue(getQuery("hello") instanceof TermQuery);

    assertTrue(getQuery("\"hello there\"") 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\"");

   

  }

  public abstract void testDefaultOperator() throws Exception;

 

 

  public void testOperatorVsWhitespace() throws Exception { //LUCENE-2566

    // +,-,! should be directly adjacent to operand (i.e. not separated by whitespace) to be treated as an operator

    Analyzer a = new Analyzer() {

      @Override

      public TokenStreamComponents createComponents(String fieldName, Reader reader) {

        return new TokenStreamComponents(new MockTokenizer(reader, MockTokenizer.WHITESPACE, false));

      }

    };

    assertQueryEquals("a - b", a, "a - b");

    assertQueryEquals("a + b", a, "a + b");

    assertQueryEquals("a ! b", a, "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 {

    assertQueryEquals("3", null, "");

    assertQueryEquals("term 1.0 1 2", null, "term");

    assertQueryEquals("term term1 term2", null, "term term term");

    Analyzer a = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, true);

    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~1", null, "term~1");

    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*") instanceof PrefixQuery);

    assertTrue(getQuery("term*^2") instanceof PrefixQuery);

    assertTrue(getQuery("term~") instanceof FuzzyQuery);

    assertTrue(getQuery("term~0.7") instanceof FuzzyQuery);

    FuzzyQuery fq = (FuzzyQuery)getQuery("term~0.7");

    assertEquals(1, fq.getMaxEdits());

    assertEquals(FuzzyQuery.defaultPrefixLength, fq.getPrefixLength());

    fq = (FuzzyQuery)getQuery("term~");

    assertEquals(2, fq.getMaxEdits());

    assertEquals(FuzzyQuery.defaultPrefixLength, fq.getPrefixLength());

   

    assertParseException("term~1.1"); // value > 1, throws exception

    assertTrue(getQuery("term*germ") instanceof WildcardQuery);

   * lower-cased with propery parser configuration

   */

    // 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*");

    // 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");

    assertWildcardQueryEquals("Term~", "term~2");

    assertWildcardQueryEquals("Term~", true, "term~2");

    assertWildcardQueryEquals("Term~", false, "Term~2");

    assertWildcardQueryEquals("[A TO C]", "[a TO c]");

    assertWildcardQueryEquals("[A TO C]", true, "[a TO c]");

    assertWildcardQueryEquals("[A TO C]", false, "[A TO C]");

    // Test suffix queries: first disallow

    try {

      assertWildcardQueryEquals("*Term", true, "*term");

    } catch(Exception pe) {

      // expected exception

      if(!isQueryParserException(pe)){

        fail();

      }

    }

    try {

      assertWildcardQueryEquals("?Term", true, "?term");

      fail();

    } catch(Exception pe) {

      // expected exception

      if(!isQueryParserException(pe)){

        fail();

      }

    }

    // Test suffix queries: then allow

    assertWildcardQueryEquals("*Term", true, "*term", true);

    assertWildcardQueryEquals("?Term", true, "?term", true);

  }

 

  public void testLeadingWildcardType() throws Exception {

    CommonQueryParserConfiguration cqpC = getParserConfig(null);

    cqpC.setAllowLeadingWildcard(true);

    assertEquals(WildcardQuery.class, getQuery("t*erm*",cqpC).getClass());

    assertEquals(WildcardQuery.class, getQuery("?term*",cqpC).getClass());

    assertEquals(WildcardQuery.class, getQuery("*term*",cqpC).getClass());

  }

  public void testQPA() throws Exception {

    assertQueryEquals("term term^3.0 term", qpAnalyzer, "term term^3.0 term");

    assertQueryEquals("term stop^3.0 term", qpAnalyzer, "term term");

   

    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 +(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");

    assertQueryEquals("term AND NOT phrase term", qpAnalyzer,

                      "+term -(phrase1 phrase2) term");

    assertQueryEquals("stop^3", qpAnalyzer, "");

    assertQueryEquals("stop", qpAnalyzer, "");

    assertQueryEquals("(stop)^3", qpAnalyzer, "");

    assertQueryEquals("((stop))^3", qpAnalyzer, "");

    assertQueryEquals("(stop^3)", qpAnalyzer, "");

    assertQueryEquals("((stop)^3)", qpAnalyzer, "");

    assertQueryEquals("(stop)", qpAnalyzer, "");

    assertQueryEquals("((stop))", qpAnalyzer, "");

    assertTrue(getQuery("term term term", qpAnalyzer) instanceof BooleanQuery);

    assertTrue(getQuery("term +stop", qpAnalyzer) instanceof TermQuery);

   

    CommonQueryParserConfiguration cqpc = getParserConfig(qpAnalyzer);

    setDefaultOperatorAND(cqpc);

    assertQueryEquals(cqpc, "field", "term phrase term",

        "+term +(+phrase1 +phrase2) +term");

    assertQueryEquals(cqpc, "field", "phrase",

        "+phrase1 +phrase2");

  }

  public void testRange() throws Exception {

    assertQueryEquals("[ a TO z]", null, "[a TO z]");

    assertQueryEquals("[ a TO z}", null, "[a TO z}");

    assertQueryEquals("{ a TO z]", null, "{a TO z]");

     assertEquals(MultiTermQuery.CONSTANT_SCORE_AUTO_REWRITE_DEFAULT, ((TermRangeQuery)getQuery("[ a TO z]")).getRewriteMethod());

    CommonQueryParserConfiguration qp = getParserConfig( new MockAnalyzer(random(), MockTokenizer.SIMPLE, true));

   

    qp.setMultiTermRewriteMethod(MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE);

    assertEquals(MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE,((TermRangeQuery)getQuery("[ a TO z]", qp)).getRewriteMethod());

   

    // test open ranges

    assertQueryEquals("[ a TO * ]", null, "[a TO *]");

    assertQueryEquals("[ * TO z ]", null, "[* TO z]");

    assertQueryEquals("[ * TO * ]", null, "[* TO *]");

   

    // mixing exclude and include bounds

    assertQueryEquals("{ a TO z ]", null, "{a TO z]");

    assertQueryEquals("[ a TO z }", null, "[a TO z}");

    assertQueryEquals("{ a TO * ]", null, "{a TO *]");

    assertQueryEquals("[ * TO z }", null, "[* TO z}");

   

    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})");

    assertQueryEquals("[* TO Z]",null,"[* TO z]");

    assertQueryEquals("[A TO *]",null,"[a TO *]");

    assertQueryEquals("[* TO *]",null,"[* TO *]");

}

  public void testRangeWithPhrase() throws Exception {

    assertQueryEquals("[\\* TO \"*\"]",null,"[\\* TO \\*]");

    assertQueryEquals("[\"*\" TO *]",null,"[\\* TO *]");

  }

  private String escapeDateString(String s) {

    if (s.indexOf(" ") > -1) {

      return "\"" + s + "\"";

    } else {

      return s;

    }

  }

 

  /** 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);

  }

 

  private String getLocalizedDate(int year, int month, int day) {

    // 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.clear();

    calendar.set(year, month, day);

    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);

    String endDate = getLocalizedDate(2002, 1, 4);

    // we use the default Locale/TZ since LuceneTestCase randomizes it

    Calendar endDateExpected = new GregorianCalendar(TimeZone.getDefault(), Locale.getDefault());

    endDateExpected.clear();

    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";

    Analyzer a = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true);

    CommonQueryParserConfiguration qp = getParserConfig(a);

   

    // set a field specific date resolution

    setDateResolution(qp, monthField, DateTools.Resolution.MONTH);

   

    // set default date resolution to MILLISECOND

    qp.setDateResolution(DateTools.Resolution.MILLISECOND);

   

    // set second field specific date resolution   

    setDateResolution(qp, hourField, DateTools.Resolution.HOUR);

    // 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); 

  }

 

  public void assertDateRangeQueryEquals(CommonQueryParserConfiguration cqpC, String field, String startDate, String endDate,

                                         Date endDateInclusive, DateTools.Resolution resolution) throws Exception {

    assertQueryEquals(cqpC, field, field + ":[" + escapeDateString(startDate) + " TO " + escapeDateString(endDate) + "]",

               "[" + getDate(startDate, resolution) + " TO " + getDate(endDateInclusive, resolution) + "]");

    assertQueryEquals(cqpC, 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("\\[brackets", a, "\\[brackets");

    assertQueryEquals("\\[brackets", null, "brackets");

    assertQueryEquals("\\\\", a, "\\\\");

    assertQueryEquals("\\+blah", a, "\\+blah");

    assertQueryEquals("\\(blah", a, "\\(blah");

    assertQueryEquals("\\-blah", a, "\\-blah");

    assertQueryEquals("\\!blah", a, "\\!blah");

    assertQueryEquals("\\{blah", a, "\\{blah");

    assertQueryEquals("\\}blah", a, "\\}blah");

    assertQueryEquals("\\:blah", a, "\\:blah");

    assertQueryEquals("\\^blah", a, "\\^blah");

    assertQueryEquals("\\[blah", a, "\\[blah");

    assertQueryEquals("\\]blah", a, "\\]blah");

    assertQueryEquals("\\\"blah", a, "\\\"blah");

    assertQueryEquals("\\(blah", a, "\\(blah");

    assertQueryEquals("\\)blah", a, "\\)blah");

    assertQueryEquals("\\~blah", a, "\\~blah");

    assertQueryEquals("\\*blah", a, "\\*blah");

    assertQueryEquals("\\?blah", a, "\\?blah");

    //assertQueryEquals("foo \\&\\& bar", a, "foo \\&\\& bar");

    //assertQueryEquals("foo \\|| bar", a, "foo \\|| bar");

    //assertQueryEquals("foo \\AND bar", a, "foo \\AND bar");*/

    assertQueryEquals("\\a", a, "a");

   

    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*]");

    assertQueryEquals("[\"c\\:\\\\temp\\\\\\~foo0.txt\" TO \"c\\:\\\\temp\\\\\\~foo9.txt\"]", a,

                      "[c:\\temp\\~foo0.txt TO c:\\temp\\~foo9.txt]");

   

    assertQueryEquals("a\\\\\\+b", a, "a\\+b");

   

    assertQueryEquals("a \\\"b c\\\" d", a, "a \"b c\" d");

    assertQueryEquals("\"a \\\"b c\\\" d\"", a, "\"a \"b c\" d\"");

    assertQueryEquals("\"a \\+b c d\"", a, "\"a +b c d\"");

   

    assertQueryEquals("c\\:\\\\temp\\\\\\~foo.txt", a, "c:\\temp\\~foo.txt");

   

    assertParseException("XY\\"); // there must be a character after the escape char

   

    // test unicode escaping

    assertQueryEquals("a\\u0062c", a, "abc");

    assertQueryEquals("XY\\u005a", a, "XYZ");

    assertQueryEquals("XY\\u005A", a, "XYZ");

    assertQueryEquals("\"a \\\\\\u0028\\u0062\\\" c\"", a, "\"a \\(b\" c\"");

   

    assertParseException("XY\\u005G");  // test non-hex character in escaped unicode sequence

    assertParseException("XY\\u005");   // test incomplete escaped unicode sequence

   

    // Tests bug LUCENE-800

    assertQueryEquals("(item:\\\\ item:ABCD\\\\)", a, "item:\\ item:ABCD\\");

    assertParseException("(item:\\\\ item:ABCD\\\\))"); // unmatched closing paranthesis

    assertQueryEquals("\\*", a, "*");

    assertQueryEquals("\\\\", a, "\\");  // escaped backslash

   

    assertParseException("\\"); // a backslash must always be escaped

   

    // LUCENE-1189

    assertQueryEquals("(\"a\\\\\") or (\"b\")", a ,"a\\ or b");

  }

 

  public void testEscapedVsQuestionMarkAsWildcard() 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");

  }

 

  public void testQueryStringEscaping() throws Exception {

    Analyzer a = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);

    assertEscapedQueryEquals("a-b:c", a, "a\\-b\\:c");

    assertEscapedQueryEquals("a+b:c", a, "a\\+b\\:c");

    assertEscapedQueryEquals("a:b:c", a, "a\\:b\\:c");

    assertEscapedQueryEquals("a\\b:c", a, "a\\\\b\\:c");

    assertEscapedQueryEquals("a:b-c", a, "a\\:b\\-c");

    assertEscapedQueryEquals("a:b+c", a, "a\\:b\\+c");

    assertEscapedQueryEquals("a:b:c", a, "a\\:b\\:c");

    assertEscapedQueryEquals("a:b\\c", a, "a\\:b\\\\c");

    assertEscapedQueryEquals("a:b-c*", a, "a\\:b\\-c\\*");

    assertEscapedQueryEquals("a:b+c*", a, "a\\:b\\+c\\*");

    assertEscapedQueryEquals("a:b:c*", a, "a\\:b\\:c\\*");

    assertEscapedQueryEquals("a:b\\\\c*", a, "a\\:b\\\\\\\\c\\*");

    assertEscapedQueryEquals("a:b-?c", a, "a\\:b\\-\\?c");

    assertEscapedQueryEquals("a:b+?c", a, "a\\:b\\+\\?c");

    assertEscapedQueryEquals("a:b:?c", a, "a\\:b\\:\\?c");

    assertEscapedQueryEquals("a:b?c", a, "a\\:b\\?c");

    assertEscapedQueryEquals("a:b-c~", a, "a\\:b\\-c\\~");

    assertEscapedQueryEquals("a:b+c~", a, "a\\:b\\+c\\~");

    assertEscapedQueryEquals("a:b:c~", a, "a\\:b\\:c\\~");

    assertEscapedQueryEquals("a:b\\c~", a, "a\\:b\\\\c\\~");

    assertEscapedQueryEquals("[ a - TO a+ ]", null, "\\[ a \\- TO a\\+ \\]");

    assertEscapedQueryEquals("[ a : TO a~ ]", null, "\\[ a \\: TO a\\~ \\]");

    assertEscapedQueryEquals("[ a\\ TO a* ]", null, "\\[ a\\\\ TO a\\* \\]");

   

    // LUCENE-881

    assertEscapedQueryEquals("|| abc ||", a, "\\|\\| abc \\|\\|");

    assertEscapedQueryEquals("&& abc &&", a, "\\&\\& abc \\&\\&");

  }

 

  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 stopWords = new CharacterRunAutomaton(BasicAutomata.makeString("on"));

    Analyzer oneStopAnalyzer = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true, stopWords);

    CommonQueryParserConfiguration qp = getParserConfig(oneStopAnalyzer);

    Query q = getQuery("on^1.0",qp);

    assertNotNull(q);

    q = getQuery("\"hello\"^2.0",qp);

    assertNotNull(q);

    assertEquals(q.getBoost(), (float) 2.0, (float) 0.5);

    q = getQuery("hello^2.0",qp);

    assertNotNull(q);

    assertEquals(q.getBoost(), (float) 2.0, (float) 0.5);

    q = getQuery("\"on\"^1.0",qp);

    assertNotNull(q);

    Analyzer a2 = new MockAnalyzer(random(), MockTokenizer.SIMPLE, true, MockTokenFilter.ENGLISH_STOPSET);

    CommonQueryParserConfiguration qp2 = getParserConfig(a2);

    q = getQuery("the^3", qp2);

    // "the" is a stop word so the result is an empty query:

    assertNotNull(q);

    assertEquals("", q.toString());

    assertEquals(1.0f, q.getBoost(), 0.01f);

  }

  public void assertParseException(String queryString) throws Exception {

    try {

      getQuery(queryString);

    } catch (Exception expected) {

      if(isQueryParserException(expected)){

        return;

      }

    }

    fail("ParseException expected, not thrown");

  }

  public void assertParseException(String queryString, Analyzer a) throws Exception {

    try {

      getQuery(queryString, a);

    } catch (Exception expected) {

      if(isQueryParserException(expected)){

        return;

      }

    }

    fail("ParseException expected, not thrown");

  }

  public void testException() throws Exception {

    assertParseException("\"some phrase");

    assertParseException("(foo bar");

    assertParseException("foo bar))");

    assertParseException("field:term:with:colon some more terms");

    assertParseException("(sub query)^5.0^2.0 plus more");

    assertParseException("secret AND illegal) AND access:confidential");

  }

  public void testBooleanQuery() throws Exception {

    BooleanQuery.setMaxClauseCount(2);

    Analyzer purWhitespaceAnalyzer = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);

    assertParseException("one two three", purWhitespaceAnalyzer);

  }

  /**

   * This test differs from TestPrecedenceQueryParser

   */

  public void testPrecedence() throws Exception {

    CommonQueryParserConfiguration qp = getParserConfig(new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false));

    Query query1 = getQuery("A AND B OR C AND D", qp);

    Query query2 = getQuery("+A +B +C +D", qp);

    assertEquals(query1, query2);

  }

//  public void testLocalDateFormat() throws IOException, ParseException {

//    Directory ramDir = newDirectory();

//    IndexWriter iw = new IndexWriter(ramDir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random, MockTokenizer.WHITESPACE, false)));

//    addDateDoc("a", 2005, 12, 2, 10, 15, 33, iw);

//    addDateDoc("b", 2005, 12, 4, 22, 15, 00, iw);

//    iw.close();

//    IndexSearcher is = new IndexSearcher(ramDir, true);

//    assertHits(1, "[12/1/2005 TO 12/3/2005]", is);

//    assertHits(2, "[12/1/2005 TO 12/4/2005]", is);

//    assertHits(1, "[12/3/2005 TO 12/4/2005]", is);

//    assertHits(1, "{12/1/2005 TO 12/3/2005}", is);

//    assertHits(1, "{12/1/2005 TO 12/4/2005}", is);

//    assertHits(0, "{12/3/2005 TO 12/4/2005}", is);

//    is.close();

//    ramDir.close();

//  }

//

//  private void addDateDoc(String content, int year, int month,

//                          int day, int hour, int minute, int second, IndexWriter iw) throws IOException {

//    Document d = new Document();

//    d.add(newField("f", content, Field.Store.YES, Field.Index.ANALYZED));

//    Calendar cal = Calendar.getInstance(Locale.ENGLISH);

//    cal.set(year, month - 1, day, hour, minute, second);

//    d.add(newField("date", DateField.dateToString(cal.getTime()), Field.Store.YES, Field.Index.NOT_ANALYZED));

//    iw.addDocument(d);

//  }

  public abstract void testStarParsing() throws Exception;

  public void testEscapedWildcard() throws Exception {

    CommonQueryParserConfiguration qp = getParserConfig( new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false));

    WildcardQuery q = new WildcardQuery(new Term("field", "foo\\?ba?r"));

    assertEquals(q, getQuery("foo\\?ba?r", qp));

  }

 

  public void testRegexps() throws Exception {

    CommonQueryParserConfiguration qp = getParserConfig( new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false));

    RegexpQuery q = new RegexpQuery(new Term("field", "[a-z][123]"));

    assertEquals(q, getQuery("/[a-z][123]/",qp));

    qp.setLowercaseExpandedTerms(true);

    assertEquals(q, getQuery("/[A-Z][123]/",qp));

    q.setBoost(0.5f);

    assertEquals(q, getQuery("/[A-Z][123]/^0.5",qp));

    qp.setMultiTermRewriteMethod(MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE);

    q.setRewriteMethod(MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE);

    assertTrue(getQuery("/[A-Z][123]/^0.5",qp) instanceof RegexpQuery);

    assertEquals(MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE, ((RegexpQuery)getQuery("/[A-Z][123]/^0.5",qp)).getRewriteMethod());

    assertEquals(q, getQuery("/[A-Z][123]/^0.5",qp));

    qp.setMultiTermRewriteMethod(MultiTermQuery.CONSTANT_SCORE_AUTO_REWRITE_DEFAULT);

   

    Query escaped = new RegexpQuery(new Term("field", "[a-z]\\/[123]"));

    assertEquals(escaped, getQuery("/[a-z]\\/[123]/",qp));

    Query escaped2 = new RegexpQuery(new Term("field", "[a-z]\\*[123]"));

    assertEquals(escaped2, getQuery("/[a-z]\\*[123]/",qp));

   

    BooleanQuery complex = new BooleanQuery();

    complex.add(new RegexpQuery(new Term("field", "[a-z]\\/[123]")), Occur.MUST);

    complex.add(new TermQuery(new Term("path", "/etc/init.d/")), Occur.MUST);

    complex.add(new TermQuery(new Term("field", "/etc/init[.]d/lucene/")), Occur.SHOULD);

    assertEquals(complex, getQuery("/[a-z]\\/[123]/ AND path:\"/etc/init.d/\" OR \"/etc\\/init\\[.\\]d/lucene/\" ",qp));

   

    Query re = new RegexpQuery(new Term("field", "http.*"));

    assertEquals(re, getQuery("field:/http.*/",qp));

    assertEquals(re, getQuery("/http.*/",qp));

   

    re = new RegexpQuery(new Term("field", "http~0.5"));

    assertEquals(re, getQuery("field:/http~0.5/",qp));

    assertEquals(re, getQuery("/http~0.5/",qp));

   

    re = new RegexpQuery(new Term("field", "boo"));

    assertEquals(re, getQuery("field:/boo/",qp));

    assertEquals(re, getQuery("/boo/",qp));

   

    assertEquals(new TermQuery(new Term("field", "/boo/")), getQuery("\"/boo/\"",qp));

    assertEquals(new TermQuery(new Term("field", "/boo/")), getQuery("\\/boo\\/",qp));

   

    BooleanQuery two = new BooleanQuery();

    two.add(new RegexpQuery(new Term("field", "foo")), Occur.SHOULD);

    two.add(new RegexpQuery(new Term("field", "bar")), Occur.SHOULD);

    assertEquals(two, getQuery("field:/foo/ field:/bar/",qp));

    assertEquals(two, getQuery("/foo/ /bar/",qp));

  }

 

  public void testStopwords() throws Exception {

    CharacterRunAutomaton stopSet = new CharacterRunAutomaton(new RegExp("the|foo").toAutomaton());

    CommonQueryParserConfiguration qp = getParserConfig(new MockAnalyzer(random(), MockTokenizer.SIMPLE, true, stopSet));

    Query result = getQuery("field:the OR field:foo",qp);

    assertNotNull("result is null and it shouldn't be", result);

    assertTrue("result is not a BooleanQuery", result instanceof BooleanQuery);

    assertTrue(((BooleanQuery) result).clauses().size() + " does not equal: " + 0, ((BooleanQuery) result).clauses().size() == 0);

    result = getQuery("field:woo OR field:the",qp);

    assertNotNull("result is null and it shouldn't be", result);

    assertTrue("result is not a TermQuery", result instanceof TermQuery);

    result = getQuery("(fieldX:xxxxx OR fieldy:xxxxxxxx)^2 AND (fieldx:the OR fieldy:foo)",qp);

    assertNotNull("result is null and it shouldn't be", result);

    assertTrue("result is not a BooleanQuery", result instanceof BooleanQuery);

    if (VERBOSE) System.out.println("Result: " + result);

    assertTrue(((BooleanQuery) result).clauses().size() + " does not equal: " + 2, ((BooleanQuery) result).clauses().size() == 2);

  }

  public void testPositionIncrement() throws Exception {

    CommonQueryParserConfiguration qp = getParserConfig( new MockAnalyzer(random(), MockTokenizer.SIMPLE, true, MockTokenFilter.ENGLISH_STOPSET));

    qp.setEnablePositionIncrements(true);

    String qtxt = "\"the words in poisitions pos02578 are stopped in this phrasequery\"";

    //               0         2                      5           7  8

    int expectedPositions[] = {1,3,4,6,9};

    PhraseQuery pq = (PhraseQuery) getQuery(qtxt,qp);

    //System.out.println("Query text: "+qtxt);

    //System.out.println("Result: "+pq);

    Term t[] = pq.getTerms();

    int pos[] = pq.getPositions();

    for (int i = 0; i < t.length; i++) {

      //System.out.println(i+". "+t[i]+"  pos: "+pos[i]);

      assertEquals("term "+i+" = "+t[i]+" has wrong term-position!",expectedPositions[i],pos[i]);

    }

  }

  public void testMatchAllDocs() throws Exception {

    CommonQueryParserConfiguration qp = getParserConfig( new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false));

    assertEquals(new MatchAllDocsQuery(), getQuery("*:*",qp));

    assertEquals(new MatchAllDocsQuery(), getQuery("(*:*)",qp));

    BooleanQuery bq = (BooleanQuery)getQuery("+*:* -*:*",qp);

    assertTrue(bq.getClauses()[0].getQuery() instanceof MatchAllDocsQuery);

    assertTrue(bq.getClauses()[1].getQuery() instanceof MatchAllDocsQuery);

  }

 

  @SuppressWarnings("unused")

  private void assertHits(int expected, String query, IndexSearcher is) throws Exception {

    String oldDefaultField = getDefaultField();

    setDefaultField("date");

    CommonQueryParserConfiguration qp = getParserConfig( new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false));

    qp.setLocale(Locale.ENGLISH);

    Query q = getQuery(query,qp);

    ScoreDoc[] hits = is.search(q, null, 1000).scoreDocs;

    assertEquals(expected, hits.length);

    setDefaultField( oldDefaultField );

  }

  @Override

  public void tearDown() throws Exception {