testqueryparser.java

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    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*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:
    assertWildcardQueryEquals("term*", true, "term*");
    assertWildcardQueryEquals("Term*", true, "term*");
    assertWildcardQueryEquals("TERM*", true, "term*");
    assertWildcardQueryEquals("term*", false, "term*");
    assertWildcardQueryEquals("Term*", false, "Term*");
    assertWildcardQueryEquals("TERM*", false, "TERM*");
// Then 'full' wildcard queries:
    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");
    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");
  }

  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");
    assertQueryEquals("term AND NOT phrase term", qpAnalyzer,
                      "+term -\"phrase1 phrase2\" term");
    assertQueryEquals("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 RangeQuery);
    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})");
  }

  public String getDate(String s) throws Exception {
    DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT);
    return DateField.dateToString(df.parse(s));
  }

  public String getLocalizedDate(int year, int month, int day) {
    DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT);
    Calendar calendar = Calendar.getInstance();
    calendar.set(year, month, day);
    return df.format(calendar.getTime());
  }

  public void testDateRange() throws Exception {
    String startDate = getLocalizedDate(2002, 1, 1);
    String endDate = getLocalizedDate(2002, 1, 4);
    assertQueryEquals("[ " + startDate + " TO " + endDate + "]", null,
                      "[" + getDate(startDate) + " TO " + getDate(endDate) + "]");
    assertQueryEquals("{  " + startDate + "    " + endDate + "   }", null,
                      "{" + getDate(startDate) + " TO " + getDate(endDate) + "}");
  }

  public void testEscaped() throws Exception {
    Analyzer a = new WhitespaceAnalyzer();
 /*   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\\-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~");
	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\\- 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 {
    StandardAnalyzer oneStopAnalyzer = new StandardAnalyzer(new String[]{"on"});
    QueryParser qp = new QueryParser("field", oneStopAnalyzer);
    Query q = qp.parse("on^1.0");
    assertNotNull(q);
    q = qp.parse("\"hello\"^2.0");
    assertNotNull(q);
    assertEquals(q.getBoost(), (float) 2.0, (float) 0.5);
    q = qp.parse("hello^2.0");
    assertNotNull(q);
    assertEquals(q.getBoost(), (float) 2.0, (float) 0.5);
    q = qp.parse("\"on\"^1.0");
    assertNotNull(q);

    q = QueryParser.parse("the^3", "field", new StandardAnalyzer());
    assertNotNull(q);
  }

  public void testException() throws Exception {
    try {
      assertQueryEquals("\"some phrase", null, "abc");
      fail("ParseException expected, not thrown");
    } catch (ParseException expected) {
    }
  }

  public void testCustomQueryParserWildcard() {
    try {
      new QPTestParser("contents", new WhitespaceAnalyzer()).parse("a?t");
    } catch (ParseException expected) {
      return;
    }
    fail("Wildcard queries should not be allowed");
  }

  public void testCustomQueryParserFuzzy() throws Exception {
    try {
      new QPTestParser("contents", new WhitespaceAnalyzer()).parse("xunit~");
    } catch (ParseException expected) {
      return;
    }
    fail("Fuzzy queries should not be allowed");
  }

  public void testBooleanQuery() throws Exception {
    BooleanQuery.setMaxClauseCount(2);
    try {
      QueryParser.parse("one two three", "field", new WhitespaceAnalyzer());
      fail("ParseException expected due to too many boolean clauses");
    } catch (ParseException expected) {
      // too many boolean clauses, so ParseException is expected
    }
  }

  public void tearDown() {
    BooleanQuery.setMaxClauseCount(originalMaxClauses);
  }

}