pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / backwards / src / test / org / apache / lucene / search / TestTopScoreDocCollector.java

diff --git a/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/search/TestTopScoreDocCollector.java b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/search/TestTopScoreDocCollector.java
new file mode 100644 (file)
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+++ b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/search/TestTopScoreDocCollector.java
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+package org.apache.lucene.search;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.document.Document;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.RandomIndexWriter;
+import org.apache.lucene.search.BooleanClause.Occur;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.util.LuceneTestCase;
+
+public class TestTopScoreDocCollector extends LuceneTestCase {
+
+  public void testOutOfOrderCollection() throws Exception {
+    Directory dir = newDirectory();
+    RandomIndexWriter writer = new RandomIndexWriter(random, dir);
+    for (int i = 0; i < 10; i++) {
+      writer.addDocument(new Document());
+    }
+    
+    boolean[] inOrder = new boolean[] { false, true };
+    String[] actualTSDCClass = new String[] {
+        "OutOfOrderTopScoreDocCollector", 
+        "InOrderTopScoreDocCollector" 
+    };
+    
+    BooleanQuery bq = new BooleanQuery();
+    // Add a Query with SHOULD, since bw.scorer() returns BooleanScorer2
+    // which delegates to BS if there are no mandatory clauses.
+    bq.add(new MatchAllDocsQuery(), Occur.SHOULD);
+    // Set minNrShouldMatch to 1 so that BQ will not optimize rewrite to return
+    // the clause instead of BQ.
+    bq.setMinimumNumberShouldMatch(1);
+    IndexReader reader = writer.getReader();
+    IndexSearcher searcher = newSearcher(reader);
+    for (int i = 0; i < inOrder.length; i++) {
+      TopDocsCollector<ScoreDoc> tdc = TopScoreDocCollector.create(3, inOrder[i]);
+      assertEquals("org.apache.lucene.search.TopScoreDocCollector$" + actualTSDCClass[i], tdc.getClass().getName());
+      
+      searcher.search(new MatchAllDocsQuery(), tdc);
+      
+      ScoreDoc[] sd = tdc.topDocs().scoreDocs;
+      assertEquals(3, sd.length);
+      for (int j = 0; j < sd.length; j++) {
+        assertEquals("expected doc Id " + j + " found " + sd[j].doc, j, sd[j].doc);
+      }
+    }
+    writer.close();
+    searcher.close();
+    reader.close();
+    dir.close();
+  }
+  
+}