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test case that makes sure sloppy phrase queries use the term distance to calculate the result ranking 

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@150740 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Daniel Naber 2005-01-28 22:22:04 +00:00
parent 3ad078a757
commit d627eced03
1 changed files with 40 additions and 0 deletions
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40
src/test/org/apache/lucene/search/TestPhraseQuery.java
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@ -16,6 +16,8 @@ package org.apache.lucene.search;
* limitations under the License.
*/
import java.io.IOException;
import junit.framework.TestCase;
import org.apache.lucene.analysis.WhitespaceAnalyzer;
import org.apache.lucene.analysis.StopAnalyzer;
@ -23,6 +25,7 @@ import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
/**
@ -254,4 +257,41 @@ public class TestPhraseQuery extends TestCase {
searcher.close();
directory.close();
}
public void testSlopScoring() throws IOException {
Directory directory = new RAMDirectory();
IndexWriter writer = new IndexWriter(directory, new WhitespaceAnalyzer(), true);
Document doc = new Document();
doc.add(new Field("field", "foo firstname lastname foo", Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc);
Document doc2 = new Document();
doc2.add(new Field("field", "foo firstname xxx lastname foo", Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc2);
Document doc3 = new Document();
doc3.add(new Field("field", "foo firstname xxx yyy lastname foo", Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc3);
writer.optimize();
writer.close();
Searcher searcher = new IndexSearcher(directory);
PhraseQuery query = new PhraseQuery();
query.add(new Term("field", "firstname"));
query.add(new Term("field", "lastname"));
query.setSlop(Integer.MAX_VALUE);
Hits hits = searcher.search(query);
assertEquals(3, hits.length());
// Make sure that those matches where the terms appear closer to
// each other get a higher score:
assertEquals(0.71, hits.score(0), 0.01);
assertEquals(0, hits.id(0));
assertEquals(0.44, hits.score(1), 0.01);
assertEquals(1, hits.id(1));
assertEquals(0.31, hits.score(2), 0.01);
assertEquals(2, hits.id(2));
}
}