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add a minimal test for boost attribute that fuzzyquery uses 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1006186 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Muir 2010-10-09 16:53:49 +00:00
parent c7d804ad43
commit 2e6787a850
1 changed files with 43 additions and 0 deletions
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43
lucene/src/test/org/apache/lucene/search/TestFuzzyQuery.java
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@ -25,6 +25,7 @@ import org.apache.lucene.analysis.MockAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.MultiReader;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.queryParser.QueryParser;
@ -280,6 +281,48 @@ public class TestFuzzyQuery extends LuceneTestCase {
directory.close();
}
/**
* MultiTermQuery provides (via attribute) information about which values
* must be competitive to enter the priority queue.
*
* FuzzyQuery optimizes itself around this information, if the attribute
* is not implemented correctly, there will be problems!
*/
public void testTieBreaker() throws Exception {
Directory directory = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random, directory);
addDoc("a123456", writer);
addDoc("c123456", writer);
addDoc("d123456", writer);
addDoc("e123456", writer);
Directory directory2 = newDirectory();
RandomIndexWriter writer2 = new RandomIndexWriter(random, directory2);
addDoc("a123456", writer2);
addDoc("b123456", writer2);
addDoc("b123456", writer2);
addDoc("b123456", writer2);
addDoc("c123456", writer2);
addDoc("f123456", writer2);
IndexReader ir1 = writer.getReader();
IndexReader ir2 = writer2.getReader();
MultiReader mr = new MultiReader(ir1, ir2);
IndexSearcher searcher = new IndexSearcher(mr);
FuzzyQuery fq = new FuzzyQuery(new Term("field", "z123456"), 1f, 0, 2);
TopDocs docs = searcher.search(fq, 2);
assertEquals(5, docs.totalHits); // 5 docs, from the a and b's
searcher.close();
mr.close();
ir1.close();
ir2.close();
writer.close();
writer2.close();
directory.close();
directory2.close();
}
public void testTokenLengthOpt() throws IOException {
Directory directory = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random, directory);