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TestSearch.javaAPI DocApache Lucene 1.94494Mon Feb 20 09:19:40 GMT 2006org.apache.lucene

TestSearch

public class TestSearch extends TestCase
JUnit adaptation of an older test case SearchTest.
author
dmitrys@earthlink.net
version
$Id: TestSearch.java 150494 2004-09-06 22:29:22Z dnaber $

Fields Summary
Constructors Summary
Methods Summary
static longTime(int year, int month, int day)

    GregorianCalendar calendar = new GregorianCalendar();
    calendar.set(year, month, day);
    return calendar.getTime().getTime();
  
private voiddoTestSearch(java.io.PrintWriter out, boolean useCompoundFile)

      Directory directory = new RAMDirectory();
      Analyzer analyzer = new SimpleAnalyzer();
      IndexWriter writer = new IndexWriter(directory, analyzer, true);

      writer.setUseCompoundFile(useCompoundFile);

      String[] docs = {
        "a b c d e",
        "a b c d e a b c d e",
        "a b c d e f g h i j",
        "a c e",
        "e c a",
        "a c e a c e",
        "a c e a b c"
      };
      for (int j = 0; j < docs.length; j++) {
        Document d = new Document();
        d.add(new Field("contents", docs[j], Field.Store.YES, Field.Index.TOKENIZED));
        writer.addDocument(d);
      }
      writer.close();

      Searcher searcher = new IndexSearcher(directory);

      String[] queries = {
        "a b",
        "\"a b\"",
        "\"a b c\"",
        "a c",
        "\"a c\"",
        "\"a c e\"",
      };
      Hits hits = null;

      QueryParser parser = new QueryParser("contents", analyzer);
      parser.setPhraseSlop(4);
      for (int j = 0; j < queries.length; j++) {
        Query query = parser.parse(queries[j]);
        out.println("Query: " + query.toString("contents"));

      //DateFilter filter =
      //  new DateFilter("modified", Time(1997,0,1), Time(1998,0,1));
      //DateFilter filter = DateFilter.Before("modified", Time(1997,00,01));
      //System.out.println(filter);

        hits = searcher.search(query);

        out.println(hits.length() + " total results");
        for (int i = 0 ; i < hits.length() && i < 10; i++) {
          Document d = hits.doc(i);
          out.println(i + " " + hits.score(i)
// 			   + " " + DateField.stringToDate(d.get("modified"))
                             + " " + d.get("contents"));
        }
      }
      searcher.close();
  
public static voidmain(java.lang.String[] args)
Main for running test case by itself.

        TestRunner.run (new TestSuite(TestSearch.class));
    
public voidtestSearch()
This test performs a number of searches. It also compares output of searches using multi-file index segments with single-file index segments. TODO: someone should check that the results of the searches are still correct by adding assert statements. Right now, the test passes if the results are the same between multi-file and single-file formats, even if the results are wrong.

      StringWriter sw = new StringWriter();
      PrintWriter pw = new PrintWriter(sw, true);
      doTestSearch(pw, false);
      pw.close();
      sw.close();
      String multiFileOutput = sw.getBuffer().toString();
      //System.out.println(multiFileOutput);

      sw = new StringWriter();
      pw = new PrintWriter(sw, true);
      doTestSearch(pw, true);
      pw.close();
      sw.close();
      String singleFileOutput = sw.getBuffer().toString();

      assertEquals(multiFileOutput, singleFileOutput);