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diff --git a/lucene-java-3.5.0/lucene/contrib/facet/src/test/org/apache/lucene/facet/index/FacetsPayloadProcessorProviderTest.java b/lucene-java-3.5.0/lucene/contrib/facet/src/test/org/apache/lucene/facet/index/FacetsPayloadProcessorProviderTest.java
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+++ b/lucene-java-3.5.0/lucene/contrib/facet/src/test/org/apache/lucene/facet/index/FacetsPayloadProcessorProviderTest.java
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+package org.apache.lucene.facet.index;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.lucene.analysis.MockAnalyzer;
+import org.apache.lucene.analysis.MockTokenizer;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.IndexWriterConfig;
+import org.apache.lucene.index.RandomIndexWriter;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.MatchAllDocsQuery;
+import org.apache.lucene.store.Directory;
+import org.junit.Test;
+
+import org.apache.lucene.util.LuceneTestCase;
+import org.apache.lucene.facet.example.merge.TaxonomyMergeUtils;
+import org.apache.lucene.facet.search.FacetsCollector;
+import org.apache.lucene.facet.search.params.CountFacetRequest;
+import org.apache.lucene.facet.search.params.FacetSearchParams;
+import org.apache.lucene.facet.search.results.FacetResult;
+import org.apache.lucene.facet.search.results.FacetResultNode;
+import org.apache.lucene.facet.taxonomy.CategoryPath;
+import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader;
+import org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter;
+
+/**
+ * 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.
+ */
+
+public class FacetsPayloadProcessorProviderTest extends LuceneTestCase {
+  
+  private static final int NUM_DOCS = 100;
+  
+  @Test
+  public void testTaxonomyMergeUtils() throws Exception {
+    Directory dir = newDirectory();
+    Directory taxDir = newDirectory();    
+    buildIndexWithFacets(dir, taxDir, true);
+    
+    Directory dir1 = newDirectory();
+    Directory taxDir1 = newDirectory();
+    buildIndexWithFacets(dir1, taxDir1, false);
+    
+    TaxonomyMergeUtils.merge(dir, taxDir, dir1, taxDir1);
+    
+    verifyResults(dir1, taxDir1);
+    dir1.close();
+    taxDir1.close();
+    dir.close();
+    taxDir.close();
+  }
+
+  private void verifyResults(Directory dir, Directory taxDir) throws IOException {
+    IndexReader reader1 = IndexReader.open(dir);
+    DirectoryTaxonomyReader taxReader = new DirectoryTaxonomyReader(taxDir);
+    IndexSearcher searcher = newSearcher(reader1);
+    FacetSearchParams fsp = new FacetSearchParams();
+    fsp.addFacetRequest(new CountFacetRequest(new CategoryPath("tag"), NUM_DOCS));
+    FacetsCollector collector = new FacetsCollector(fsp, reader1, taxReader);
+    searcher.search(new MatchAllDocsQuery(), collector);
+    FacetResult result = collector.getFacetResults().get(0);
+    FacetResultNode node = result.getFacetResultNode();
+    for (FacetResultNode facet: node.getSubResults()) {
+      int weight = (int)facet.getValue();
+      int label = Integer.parseInt(facet.getLabel().getComponent(1));
+      //System.out.println(label + ": " + weight);
+      if (VERBOSE) {
+        System.out.println(label + ": " + weight);
+      }
+      assertEquals(NUM_DOCS ,weight);
+    }
+    reader1.close();
+    taxReader.close();
+  }
+
+  private void buildIndexWithFacets(Directory dir, Directory taxDir, boolean asc) throws IOException {
+    IndexWriterConfig config = newIndexWriterConfig(TEST_VERSION_CURRENT, 
+        new MockAnalyzer(random, MockTokenizer.WHITESPACE, false));
+    RandomIndexWriter writer = new RandomIndexWriter(random, dir, config);
+    
+    DirectoryTaxonomyWriter taxonomyWriter = new DirectoryTaxonomyWriter(taxDir);
+    for (int i = 1; i <= NUM_DOCS; i++) {
+      Document doc = new Document();
+      List<CategoryPath> categoryPaths = new ArrayList<CategoryPath>(i + 1);
+      for (int j = i; j <= NUM_DOCS; j++) {
+        int facetValue = asc? j: NUM_DOCS - j;
+        categoryPaths.add(new CategoryPath("tag", Integer.toString(facetValue)));
+      }
+      CategoryDocumentBuilder catBuilder = new CategoryDocumentBuilder(taxonomyWriter);
+      catBuilder.setCategoryPaths(categoryPaths);
+      catBuilder.build(doc);
+      writer.addDocument(doc);
+    }    
+    taxonomyWriter.close();
+    writer.close();
+  }  
+
+}