pylucene 3.5.0-3

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

diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/ar/TestArabicAnalyzer.java b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/ar/TestArabicAnalyzer.java
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+++ b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/ar/TestArabicAnalyzer.java
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+package org.apache.lucene.analysis.ar;
+
+/**
+ * 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.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.apache.lucene.analysis.BaseTokenStreamTestCase;
+import org.apache.lucene.analysis.CharArraySet;
+
+/**
+ * Test the Arabic Analyzer
+ *
+ */
+public class TestArabicAnalyzer extends BaseTokenStreamTestCase {
+  
+  /** This test fails with NPE when the 
+   * stopwords file is missing in classpath */
+  public void testResourcesAvailable() {
+    new ArabicAnalyzer(TEST_VERSION_CURRENT);
+  }
+  
+  /**
+   * Some simple tests showing some features of the analyzer, how some regular forms will conflate
+   */
+  public void testBasicFeatures() throws Exception {
+    ArabicAnalyzer a = new ArabicAnalyzer(TEST_VERSION_CURRENT);
+    assertAnalyzesTo(a, "كبير", new String[] { "كبير" });
+    assertAnalyzesTo(a, "كبيرة", new String[] { "كبير" }); // feminine marker
+    
+    assertAnalyzesTo(a, "مشروب", new String[] { "مشروب" });
+    assertAnalyzesTo(a, "مشروبات", new String[] { "مشروب" }); // plural -at
+    
+    assertAnalyzesTo(a, "أمريكيين", new String[] { "امريك" }); // plural -in
+    assertAnalyzesTo(a, "امريكي", new String[] { "امريك" }); // singular with bare alif
+    
+    assertAnalyzesTo(a, "كتاب", new String[] { "كتاب" }); 
+    assertAnalyzesTo(a, "الكتاب", new String[] { "كتاب" }); // definite article
+    
+    assertAnalyzesTo(a, "ما ملكت أيمانكم", new String[] { "ملكت", "ايمانكم"});
+    assertAnalyzesTo(a, "الذين ملكت أيمانكم", new String[] { "ملكت", "ايمانكم" }); // stopwords
+  }
+  
+  /**
+   * Simple tests to show things are getting reset correctly, etc.
+   */
+  public void testReusableTokenStream() throws Exception {
+    ArabicAnalyzer a = new ArabicAnalyzer(TEST_VERSION_CURRENT);
+    assertAnalyzesToReuse(a, "كبير", new String[] { "كبير" });
+    assertAnalyzesToReuse(a, "كبيرة", new String[] { "كبير" }); // feminine marker
+  }
+
+  /**
+   * Non-arabic text gets treated in a similar way as SimpleAnalyzer.
+   */
+  public void testEnglishInput() throws Exception {
+    assertAnalyzesTo(new ArabicAnalyzer(TEST_VERSION_CURRENT), "English text.", new String[] {
+        "english", "text" });
+  }
+  
+  /**
+   * Test that custom stopwords work, and are not case-sensitive.
+   */
+  public void testCustomStopwords() throws Exception {
+    Set<String> set = new HashSet<String>();
+    Collections.addAll(set, "the", "and", "a");
+    ArabicAnalyzer a = new ArabicAnalyzer(TEST_VERSION_CURRENT, set);
+    assertAnalyzesTo(a, "The quick brown fox.", new String[] { "quick",
+        "brown", "fox" });
+  }
+  
+  public void testWithStemExclusionSet() throws IOException {
+    Set<String> set = new HashSet<String>();
+    set.add("ساهدهات");
+    ArabicAnalyzer a = new ArabicAnalyzer(TEST_VERSION_CURRENT, CharArraySet.EMPTY_SET, set);
+    assertAnalyzesTo(a, "كبيرة the quick ساهدهات", new String[] { "كبير","the", "quick", "ساهدهات" });
+    assertAnalyzesToReuse(a, "كبيرة the quick ساهدهات", new String[] { "كبير","the", "quick", "ساهدهات" });
+
+    
+    a = new ArabicAnalyzer(TEST_VERSION_CURRENT, CharArraySet.EMPTY_SET, CharArraySet.EMPTY_SET);
+    assertAnalyzesTo(a, "كبيرة the quick ساهدهات", new String[] { "كبير","the", "quick", "ساهد" });
+    assertAnalyzesToReuse(a, "كبيرة the quick ساهدهات", new String[] { "كبير","the", "quick", "ساهد" });
+  }
+  
+  /** blast some random strings through the analyzer */
+  public void testRandomStrings() throws Exception {
+    checkRandomData(random, new ArabicAnalyzer(TEST_VERSION_CURRENT), 10000*RANDOM_MULTIPLIER);
+  }
+}