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diff --git a/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/search/TestSimilarity.java b/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/search/TestSimilarity.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.util.LuceneTestCase;
+import java.io.IOException;
+import java.util.Collection;
+
+import org.apache.lucene.index.FieldInvertState;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.RandomIndexWriter;
+import org.apache.lucene.index.Term;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.analysis.MockAnalyzer;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.search.Explanation.IDFExplanation;
+
+/** Similarity unit test.
+ *
+ *
+ * @version $Revision: 1167511 $
+ */
+public class TestSimilarity extends LuceneTestCase {
+  
+  public static class SimpleSimilarity extends Similarity {
+    @Override public float computeNorm(String field, FieldInvertState state) { return state.getBoost(); }
+    @Override public float queryNorm(float sumOfSquaredWeights) { return 1.0f; }
+    @Override public float tf(float freq) { return freq; }
+    @Override public float sloppyFreq(int distance) { return 2.0f; }
+    @Override public float idf(int docFreq, int numDocs) { return 1.0f; }
+    @Override public float coord(int overlap, int maxOverlap) { return 1.0f; }
+    @Override public IDFExplanation idfExplain(Collection<Term> terms, Searcher searcher) throws IOException {
+      return new IDFExplanation() {
+        @Override
+        public float getIdf() {
+          return 1.0f;
+        }
+        @Override
+        public String explain() {
+          return "Inexplicable";
+        }
+      };
+    }
+  }
+
+  public void testSimilarity() throws Exception {
+    Directory store = newDirectory();
+    RandomIndexWriter writer = new RandomIndexWriter(random, store, 
+        newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random))
+        .setSimilarity(new SimpleSimilarity()));
+    
+    Document d1 = new Document();
+    d1.add(newField("field", "a c", Field.Store.YES, Field.Index.ANALYZED));
+
+    Document d2 = new Document();
+    d2.add(newField("field", "a b c", Field.Store.YES, Field.Index.ANALYZED));
+    
+    writer.addDocument(d1);
+    writer.addDocument(d2);
+    IndexReader reader = writer.getReader();
+    writer.close();
+
+    IndexSearcher searcher = newSearcher(reader);
+    searcher.setSimilarity(new SimpleSimilarity());
+
+    Term a = new Term("field", "a");
+    Term b = new Term("field", "b");
+    Term c = new Term("field", "c");
+
+    searcher.search(new TermQuery(b), new Collector() {
+         private Scorer scorer;
+         @Override
+        public void setScorer(Scorer scorer) throws IOException {
+           this.scorer = scorer; 
+         }
+         @Override
+        public final void collect(int doc) throws IOException {
+           assertEquals(1.0f, scorer.score(), 0);
+         }
+         @Override
+        public void setNextReader(IndexReader reader, int docBase) {}
+         @Override
+        public boolean acceptsDocsOutOfOrder() {
+           return true;
+         }
+       });
+
+    BooleanQuery bq = new BooleanQuery();
+    bq.add(new TermQuery(a), BooleanClause.Occur.SHOULD);
+    bq.add(new TermQuery(b), BooleanClause.Occur.SHOULD);
+    //System.out.println(bq.toString("field"));
+    searcher.search(bq, new Collector() {
+         private int base = 0;
+         private Scorer scorer;
+         @Override
+        public void setScorer(Scorer scorer) throws IOException {
+           this.scorer = scorer; 
+         }
+         @Override
+        public final void collect(int doc) throws IOException {
+           //System.out.println("Doc=" + doc + " score=" + score);
+           assertEquals((float)doc+base+1, scorer.score(), 0);
+         }
+         @Override
+        public void setNextReader(IndexReader reader, int docBase) {
+           base = docBase;
+         }
+         @Override
+        public boolean acceptsDocsOutOfOrder() {
+           return true;
+         }
+       });
+
+    PhraseQuery pq = new PhraseQuery();
+    pq.add(a);
+    pq.add(c);
+    //System.out.println(pq.toString("field"));
+    searcher.search(pq,
+       new Collector() {
+         private Scorer scorer;
+         @Override
+         public void setScorer(Scorer scorer) throws IOException {
+          this.scorer = scorer; 
+         }
+         @Override
+         public final void collect(int doc) throws IOException {
+           //System.out.println("Doc=" + doc + " score=" + score);
+           assertEquals(1.0f, scorer.score(), 0);
+         }
+         @Override
+         public void setNextReader(IndexReader reader, int docBase) {}
+         @Override
+         public boolean acceptsDocsOutOfOrder() {
+           return true;
+         }
+       });
+
+    pq.setSlop(2);
+    //System.out.println(pq.toString("field"));
+    searcher.search(pq, new Collector() {
+      private Scorer scorer;
+      @Override
+      public void setScorer(Scorer scorer) throws IOException {
+        this.scorer = scorer; 
+      }
+      @Override
+      public final void collect(int doc) throws IOException {
+        //System.out.println("Doc=" + doc + " score=" + score);
+        assertEquals(2.0f, scorer.score(), 0);
+      }
+      @Override
+      public void setNextReader(IndexReader reader, int docBase) {}
+      @Override
+      public boolean acceptsDocsOutOfOrder() {
+        return true;
+      }
+    });
+
+    searcher.close();
+    reader.close();
+    store.close();
+  }
+}