pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / backwards / src / test / org / apache / lucene / index / TestSameTokenSamePosition.java

diff --git a/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/index/TestSameTokenSamePosition.java b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/index/TestSameTokenSamePosition.java
new file mode 100644 (file)
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--- /dev/null
+++ b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/index/TestSameTokenSamePosition.java
@@ -0,0 +1,105 @@
+package org.apache.lucene.index;
+
+/**
+ * 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 java.io.Reader;
+
+import org.apache.lucene.analysis.Analyzer;
+import org.apache.lucene.analysis.ReusableAnalyzerBase;
+import org.apache.lucene.analysis.TokenStream;
+import org.apache.lucene.analysis.Tokenizer;
+import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
+import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
+import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.util.LuceneTestCase;
+
+public class TestSameTokenSamePosition extends LuceneTestCase {
+
+  /**
+   * Attempt to reproduce an assertion error that happens
+   * only with the trunk version around April 2011.
+   */
+  public void test() throws Exception {
+    Directory dir = newDirectory();
+    RandomIndexWriter riw = new RandomIndexWriter(random, dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new BugReproAnalyzer()));
+    Document doc = new Document();
+    doc.add(new Field("eng", "Six drunken" /*This shouldn't matter. */, 
+                      Field.Store.YES, Field.Index.ANALYZED));
+    riw.addDocument(doc);
+    riw.close();
+    dir.close();
+  }
+  
+  /**
+   * Same as the above, but with more docs
+   */
+  public void testMoreDocs() throws Exception {
+    Directory dir = newDirectory();
+    RandomIndexWriter riw = new RandomIndexWriter(random, dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new BugReproAnalyzer()));
+    Document doc = new Document();
+    doc.add(new Field("eng", "Six drunken" /*This shouldn't matter. */, 
+                      Field.Store.YES, Field.Index.ANALYZED));
+    for (int i = 0; i < 100; i++) {
+      riw.addDocument(doc);
+    }
+    riw.close();
+    dir.close();
+  }
+}
+
+final class BugReproAnalyzer extends Analyzer{
+  @Override
+  public TokenStream tokenStream(String arg0, Reader arg1) {
+    return new BugReproAnalyzerTokenizer();
+  }
+}
+
+final class BugReproAnalyzerTokenizer extends Tokenizer {
+  private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
+  private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class);
+  private final PositionIncrementAttribute posIncAtt = addAttribute(PositionIncrementAttribute.class);
+  private final int tokenCount = 4;
+  private int nextTokenIndex = 0;
+  private final String terms[] = new String[]{"six", "six", "drunken", "drunken"};
+  private final int starts[] = new int[]{0, 0, 4, 4};
+  private final int ends[] = new int[]{3, 3, 11, 11};
+  private final int incs[] = new int[]{1, 0, 1, 0};
+
+  @Override
+  public boolean incrementToken() throws IOException {
+    if (nextTokenIndex < tokenCount) {
+      termAtt.setEmpty().append(terms[nextTokenIndex]);
+      offsetAtt.setOffset(starts[nextTokenIndex], ends[nextTokenIndex]);
+      posIncAtt.setPositionIncrement(incs[nextTokenIndex]);
+      nextTokenIndex++;
+      return true;                     
+    } else {
+      return false;
+    }
+  }
+
+  @Override
+  public void reset() throws IOException {
+    super.reset();
+    this.nextTokenIndex = 0;
+  }
+}