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diff --git a/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/search/TestQueryWrapperFilter.java b/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/search/TestQueryWrapperFilter.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 java.util.HashSet;
+import java.util.Set;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field.Index;
+import org.apache.lucene.document.Field.Store;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.RandomIndexWriter;
+import org.apache.lucene.index.Term;
+import org.apache.lucene.search.BooleanClause.Occur;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.util.English;
+import org.apache.lucene.util.LuceneTestCase;
+
+public class TestQueryWrapperFilter extends LuceneTestCase {
+
+  public void testBasic() throws Exception {
+    Directory dir = newDirectory();
+    RandomIndexWriter writer = new RandomIndexWriter(random, dir);
+    Document doc = new Document();
+    doc.add(newField("field", "value", Store.NO, Index.ANALYZED));
+    writer.addDocument(doc);
+    IndexReader reader = writer.getReader();
+    writer.close();
+
+    TermQuery termQuery = new TermQuery(new Term("field", "value"));
+
+    // should not throw exception with primitive query
+    QueryWrapperFilter qwf = new QueryWrapperFilter(termQuery);
+
+    IndexSearcher searcher = newSearcher(reader);
+    TopDocs hits = searcher.search(new MatchAllDocsQuery(), qwf, 10);
+    assertEquals(1, hits.totalHits);
+    hits = searcher.search(new MatchAllDocsQuery(), new CachingWrapperFilter(qwf), 10);
+    assertEquals(1, hits.totalHits);
+
+    // should not throw exception with complex primitive query
+    BooleanQuery booleanQuery = new BooleanQuery();
+    booleanQuery.add(termQuery, Occur.MUST);
+    booleanQuery.add(new TermQuery(new Term("field", "missing")),
+        Occur.MUST_NOT);
+    qwf = new QueryWrapperFilter(termQuery);
+
+    hits = searcher.search(new MatchAllDocsQuery(), qwf, 10);
+    assertEquals(1, hits.totalHits);
+    hits = searcher.search(new MatchAllDocsQuery(), new CachingWrapperFilter(qwf), 10);
+    assertEquals(1, hits.totalHits);
+
+    // should not throw exception with non primitive Query (doesn't implement
+    // Query#createWeight)
+    qwf = new QueryWrapperFilter(new FuzzyQuery(new Term("field", "valu")));
+
+    hits = searcher.search(new MatchAllDocsQuery(), qwf, 10);
+    assertEquals(1, hits.totalHits);
+    hits = searcher.search(new MatchAllDocsQuery(), new CachingWrapperFilter(qwf), 10);
+    assertEquals(1, hits.totalHits);
+
+    // test a query with no hits
+    termQuery = new TermQuery(new Term("field", "not_exist"));
+    qwf = new QueryWrapperFilter(termQuery);
+    hits = searcher.search(new MatchAllDocsQuery(), qwf, 10);
+    assertEquals(0, hits.totalHits);
+    hits = searcher.search(new MatchAllDocsQuery(), new CachingWrapperFilter(qwf), 10);
+    assertEquals(0, hits.totalHits);
+    searcher.close();
+    reader.close();
+    dir.close();
+  }
+
+  // this test is for 3.x only, in 4.x we no longer support non-atomic readers passed to getDocIdSet():
+  public void test_LUCENE3442() throws Exception {
+
+    Directory dir = newDirectory();
+    RandomIndexWriter writer = new RandomIndexWriter(random, dir);
+    Document doc = new Document();
+    doc.add(newField("id", "1001", Store.YES, Index.NOT_ANALYZED));
+    doc.add(newField("text", "headline one group one", Store.YES, Index.ANALYZED));
+    writer.addDocument(doc);
+    IndexReader rdr = writer.getReader();
+    writer.close();
+    IndexSearcher searcher = new IndexSearcher(rdr);
+    TermQuery tq = new TermQuery(new Term("text", "headline"));
+    TopDocs results = searcher.search(tq, 5);
+    assertEquals(1, results.totalHits);
+    
+    Filter f = new QueryWrapperFilter(tq);
+    // rdr may not be atomic (it isn't in most cases), TermQuery inside QWF should still work!
+    DocIdSet dis = f.getDocIdSet(rdr);
+    assertNotNull(dis);
+    DocIdSetIterator it = dis.iterator();
+    assertNotNull(it);
+    int docId, count = 0;
+    while ((docId = it.nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) {
+      assertEquals("1001", rdr.document(docId).get("id"));
+      count++;
+    }
+    assertEquals(1, count);
+    searcher.close();
+    rdr.close();
+    dir.close();
+  }
+
+  public void testRandom() throws Exception {
+    final Directory d = newDirectory();
+    final RandomIndexWriter w = new RandomIndexWriter(random, d);
+    w.w.getConfig().setMaxBufferedDocs(17);
+    final int numDocs = atLeast(100);
+    final Set<String> aDocs = new HashSet<String>();
+    for(int i=0;i<numDocs;i++) {
+      final Document doc = new Document();
+      final String v;
+      if (random.nextInt(5) == 4) {
+        v = "a";
+        aDocs.add(""+i);
+      } else {
+        v = "b";
+      }
+      final Field f = newField("field", v, Field.Store.NO, Field.Index.NOT_ANALYZED);
+      doc.add(f);
+      doc.add(newField("id", ""+i, Field.Store.YES, Field.Index.NOT_ANALYZED));
+      w.addDocument(doc);
+    }
+
+    final int numDelDocs = atLeast(10);
+    for(int i=0;i<numDelDocs;i++) {
+      final String delID = ""+random.nextInt(numDocs);
+      w.deleteDocuments(new Term("id", delID));
+      aDocs.remove(delID);
+    }
+
+    final IndexReader r = w.getReader();
+    w.close();
+    final TopDocs hits = new IndexSearcher(r).search(new MatchAllDocsQuery(),
+                                                     new QueryWrapperFilter(new TermQuery(new Term("field", "a"))),
+                                                     numDocs);
+    assertEquals(aDocs.size(), hits.totalHits);
+    for(ScoreDoc sd: hits.scoreDocs) {
+      assertTrue(aDocs.contains(r.document(sd.doc).get("id")));
+    }
+    r.close();
+    d.close();
+  }
+  
+  public void testThousandDocuments() throws Exception {
+    Directory dir = newDirectory();
+    RandomIndexWriter writer = new RandomIndexWriter(random, dir);
+    for (int i = 0; i < 1000; i++) {
+      Document doc = new Document();
+      doc.add(newField("field", English.intToEnglish(i), Field.Index.NOT_ANALYZED));
+      writer.addDocument(doc);
+    }
+    
+    IndexReader reader = writer.getReader();
+    writer.close();
+    
+    IndexSearcher searcher = newSearcher(reader);
+    
+    for (int i = 0; i < 1000; i++) {
+      TermQuery termQuery = new TermQuery(new Term("field", English.intToEnglish(i)));
+      QueryWrapperFilter qwf = new QueryWrapperFilter(termQuery);
+      TopDocs td = searcher.search(new MatchAllDocsQuery(), qwf, 10);
+      assertEquals(1, td.totalHits);
+    }
+    
+    searcher.close();
+    reader.close();
+    dir.close();
+  }
+}