pylucene 3.5.0-3

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

diff --git a/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/search/TestDocBoost.java b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/search/TestDocBoost.java
new file mode 100644 (file)
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+++ b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/search/TestDocBoost.java
@@ -0,0 +1,100 @@
+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.io.IOException;
+
+import org.apache.lucene.analysis.MockAnalyzer;
+import org.apache.lucene.document.*;
+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.util.LuceneTestCase;
+
+/** Document boost unit test.
+ *
+ *
+ * @version $Revision: 1099728 $
+ */
+public class TestDocBoost extends LuceneTestCase {
+
+  public void testDocBoost() throws Exception {
+    Directory store = newDirectory();
+    RandomIndexWriter writer = new RandomIndexWriter(random, store, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).setMergePolicy(newLogMergePolicy()));
+
+    Fieldable f1 = newField("field", "word", Field.Store.YES, Field.Index.ANALYZED);
+    Fieldable f2 = newField("field", "word", Field.Store.YES, Field.Index.ANALYZED);
+    f2.setBoost(2.0f);
+
+    Document d1 = new Document();
+    Document d2 = new Document();
+    Document d3 = new Document();
+    Document d4 = new Document();
+    d3.setBoost(3.0f);
+    d4.setBoost(2.0f);
+
+    d1.add(f1);                                 // boost = 1
+    d2.add(f2);                                 // boost = 2
+    d3.add(f1);                                 // boost = 3
+    d4.add(f2);                                 // boost = 4
+
+    writer.addDocument(d1);
+    writer.addDocument(d2);
+    writer.addDocument(d3);
+    writer.addDocument(d4);
+
+    IndexReader reader = writer.getReader();
+    writer.close();
+
+    final float[] scores = new float[4];
+
+    newSearcher(reader).search
+      (new TermQuery(new Term("field", "word")),
+       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 {
+           scores[doc + base] = scorer.score();
+         }
+         @Override
+         public void setNextReader(IndexReader reader, int docBase) {
+           base = docBase;
+         }
+         @Override
+         public boolean acceptsDocsOutOfOrder() {
+           return true;
+         }
+       });
+
+    float lastScore = 0.0f;
+
+    for (int i = 0; i < 4; i++) {
+      assertTrue(scores[i] > lastScore);
+      lastScore = scores[i];
+    }
+    
+    reader.close();
+    store.close();
+  }
+}