pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / analyzers / common / src / test / org / apache / lucene / analysis / en / TestEnglishMinimalStemFilter.java

diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/en/TestEnglishMinimalStemFilter.java b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/en/TestEnglishMinimalStemFilter.java
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+package org.apache.lucene.analysis.en;
+
+/**
+ * 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.BaseTokenStreamTestCase;
+import org.apache.lucene.analysis.MockTokenizer;
+import org.apache.lucene.analysis.Tokenizer;
+import org.apache.lucene.analysis.ReusableAnalyzerBase;
+
+/**
+ * Simple tests for {@link EnglishMinimalStemFilter}
+ */
+public class TestEnglishMinimalStemFilter extends BaseTokenStreamTestCase {
+  private Analyzer analyzer = new ReusableAnalyzerBase() {
+    @Override
+    protected TokenStreamComponents createComponents(String fieldName,
+        Reader reader) {
+      Tokenizer source = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
+      return new TokenStreamComponents(source, new EnglishMinimalStemFilter(source));
+    }
+  };
+  
+  /** Test some examples from various papers about this technique */
+  public void testExamples() throws IOException {
+    checkOneTerm(analyzer, "queries", "query");
+    checkOneTerm(analyzer, "phrases", "phrase");
+    checkOneTerm(analyzer, "corpus", "corpus");
+    checkOneTerm(analyzer, "stress", "stress");
+    checkOneTerm(analyzer, "kings", "king");
+    checkOneTerm(analyzer, "panels", "panel");
+    checkOneTerm(analyzer, "aerodynamics", "aerodynamic");
+    checkOneTerm(analyzer, "congress", "congress");
+    checkOneTerm(analyzer, "serious", "serious");
+  }
+  
+  /** blast some random strings through the analyzer */
+  public void testRandomStrings() throws Exception {
+    checkRandomData(random, analyzer, 10000*RANDOM_MULTIPLIER);
+  }
+}