dnaber      2004/10/10 08:33:56

  Added:       src/test/org/apache/lucene/search TestMultiPhraseQuery.java
  Log:
  copied from TestPhrasePrefixQuery, added a test for toString() and added a test where the first term is expanded
  
  Revision  Changes    Path
  1.1                  jakarta-lucene/src/test/org/apache/lucene/search/TestMultiPhraseQuery.java
  
  Index: TestMultiPhraseQuery.java
  ===================================================================
  package org.apache.lucene.search;
  
  /**
   * Copyright 2004 The Apache Software Foundation
   *
   * Licensed 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 org.apache.lucene.search.IndexSearcher;
  import org.apache.lucene.index.Term;
  import org.apache.lucene.index.TermEnum;
  import org.apache.lucene.index.IndexReader;
  import org.apache.lucene.index.IndexWriter;
  import org.apache.lucene.store.RAMDirectory;
  import org.apache.lucene.analysis.SimpleAnalyzer;
  import org.apache.lucene.document.Document;
  import org.apache.lucene.document.Field;
  
  import junit.framework.TestCase;
  
  import java.io.IOException;
  import java.util.LinkedList;
  
  /**
   * This class tests the MultiPhraseQuery class.
   *
   * @author Otis Gospodnetic, Daniel Naber
   * @version $Id: TestMultiPhraseQuery.java,v 1.1 2004/10/10 15:33:56 dnaber Exp $
   */
  public class TestMultiPhraseQuery
      extends TestCase
  {
      public TestMultiPhraseQuery(String name)
      {
          super(name);
      }
  
      /**
       *
       */
      public void testPhrasePrefix()
          throws IOException
      {
          RAMDirectory indexStore = new RAMDirectory();
          IndexWriter writer = new IndexWriter(indexStore, new SimpleAnalyzer(), true);
          Document doc1 = new Document();
          Document doc2 = new Document();
          Document doc3 = new Document();
          Document doc4 = new Document();
          Document doc5 = new Document();
          doc1.add(new Field("body", "blueberry pie", Field.Store.YES, Field.Index.TOKENIZED));
          doc2.add(new Field("body", "blueberry strudel", Field.Store.YES, Field.Index.TOKENIZED));
          doc3.add(new Field("body", "blueberry pizza", Field.Store.YES, Field.Index.TOKENIZED));
          doc4.add(new Field("body", "blueberry chewing gum", Field.Store.YES, Field.Index.TOKENIZED));
          doc4.add(new Field("body", "bluebird pizza", Field.Store.YES, Field.Index.TOKENIZED));
          doc5.add(new Field("body", "piccadilly circus", Field.Store.YES, Field.Index.TOKENIZED));
          writer.addDocument(doc1);
          writer.addDocument(doc2);
          writer.addDocument(doc3);
          writer.addDocument(doc4);
          writer.addDocument(doc5);
          writer.optimize();
          writer.close();
  
          IndexSearcher searcher = new IndexSearcher(indexStore);
  
          // search for "blueberry pi*":
          MultiPhraseQuery query1 = new MultiPhraseQuery();
          // search for "strawberry pi*":
          MultiPhraseQuery query2 = new MultiPhraseQuery();
          query1.add(new Term("body", "blueberry"));
          query2.add(new Term("body", "strawberry"));
  
          LinkedList termsWithPrefix = new LinkedList();
          IndexReader ir = IndexReader.open(indexStore);
  
          // this TermEnum gives "piccadilly", "pie" and "pizza".
          String prefix = "pi";
          TermEnum te = ir.terms(new Term("body", prefix + "*"));
          do {
              if (te.term().text().startsWith(prefix))
              {
                  termsWithPrefix.add(te.term());
              }
          } while (te.next());
  
          query1.add((Term[])termsWithPrefix.toArray(new Term[0]));
          assertEquals("body:\"blueberry (piccadilly pie pizza)\"", query1.toString());
          query2.add((Term[])termsWithPrefix.toArray(new Term[0]));
          assertEquals("body:\"strawberry (piccadilly pie pizza)\"", query2.toString());
  
          Hits result;
          result = searcher.search(query1);
          assertEquals(2, result.length());
          result = searcher.search(query2);
          assertEquals(0, result.length());
  
          // search for "blue* pizza":
          MultiPhraseQuery query3 = new MultiPhraseQuery();
          termsWithPrefix.clear();
          prefix = "blue";
          te = ir.terms(new Term("body", prefix + "*"));
          do {
              if (te.term().text().startsWith(prefix))
              {
                  termsWithPrefix.add(te.term());
              }
          } while (te.next());
          query3.add((Term[])termsWithPrefix.toArray(new Term[0]));
          query3.add(new Term("body", "pizza"));
  
          result = searcher.search(query3);
          assertEquals(2, result.length()); // blueberry pizza, blueberry chewing gum
          assertEquals("body:\"(blueberry bluebird) pizza\"", query3.toString());
      }
  }
  
  
  

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