pylucene 3.5.0-3

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

diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/de/TestGermanAnalyzer.java b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/de/TestGermanAnalyzer.java
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+++ b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/test/org/apache/lucene/analysis/de/TestGermanAnalyzer.java
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+package org.apache.lucene.analysis.de;
+
+/**
+ * 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.StringReader;
+
+import org.apache.lucene.analysis.Analyzer;
+import org.apache.lucene.analysis.BaseTokenStreamTestCase;
+import org.apache.lucene.analysis.CharArraySet;
+import org.apache.lucene.analysis.KeywordMarkerFilter;
+import org.apache.lucene.analysis.LowerCaseTokenizer;
+import org.apache.lucene.util.Version;
+
+public class TestGermanAnalyzer extends BaseTokenStreamTestCase {
+  public void testReusableTokenStream() throws Exception {
+    Analyzer a = new GermanAnalyzer(TEST_VERSION_CURRENT);
+    checkOneTermReuse(a, "Tisch", "tisch");
+    checkOneTermReuse(a, "Tische", "tisch");
+    checkOneTermReuse(a, "Tischen", "tisch");
+  }
+  
+  public void testExclusionTableBWCompat() throws IOException {
+    GermanStemFilter filter = new GermanStemFilter(new LowerCaseTokenizer(TEST_VERSION_CURRENT, 
+        new StringReader("Fischen Trinken")));
+    CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, 1, true);
+    set.add("fischen");
+    filter.setExclusionSet(set);
+    assertTokenStreamContents(filter, new String[] { "fischen", "trink" });
+  }
+
+  public void testWithKeywordAttribute() throws IOException {
+    CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, 1, true);
+    set.add("fischen");
+    GermanStemFilter filter = new GermanStemFilter(
+        new KeywordMarkerFilter(new LowerCaseTokenizer(TEST_VERSION_CURRENT, new StringReader( 
+            "Fischen Trinken")), set));
+    assertTokenStreamContents(filter, new String[] { "fischen", "trink" });
+  }
+
+  public void testWithKeywordAttributeAndExclusionTable() throws IOException {
+    CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, 1, true);
+    set.add("fischen");
+    CharArraySet set1 = new CharArraySet(TEST_VERSION_CURRENT, 1, true);
+    set1.add("trinken");
+    set1.add("fischen");
+    GermanStemFilter filter = new GermanStemFilter(
+        new KeywordMarkerFilter(new LowerCaseTokenizer(TEST_VERSION_CURRENT, new StringReader(
+            "Fischen Trinken")), set));
+    filter.setExclusionSet(set1);
+    assertTokenStreamContents(filter, new String[] { "fischen", "trinken" });
+  }
+  
+  /* 
+   * Test that changes to the exclusion table are applied immediately
+   * when using reusable token streams.
+   */
+  public void testExclusionTableReuse() throws Exception {
+    GermanAnalyzer a = new GermanAnalyzer(TEST_VERSION_CURRENT);
+    checkOneTermReuse(a, "tischen", "tisch");
+    a.setStemExclusionTable(new String[] { "tischen" });
+    checkOneTermReuse(a, "tischen", "tischen");
+  }
+  
+  /** test some features of the new snowball filter
+   * these only pass with LUCENE_CURRENT, not if you use o.a.l.a.de.GermanStemmer
+   */
+  public void testGermanSpecials() throws Exception {
+    GermanAnalyzer a = new GermanAnalyzer(TEST_VERSION_CURRENT);
+    // a/o/u + e is equivalent to the umlaut form
+    checkOneTermReuse(a, "Schaltflächen", "schaltflach");
+    checkOneTermReuse(a, "Schaltflaechen", "schaltflach");
+    // here they are with the old stemmer
+    a = new GermanAnalyzer(Version.LUCENE_30);
+    checkOneTermReuse(a, "Schaltflächen", "schaltflach");
+    checkOneTermReuse(a, "Schaltflaechen", "schaltflaech");
+  }
+  
+  /** blast some random strings through the analyzer */
+  public void testRandomStrings() throws Exception {
+    checkRandomData(random, new GermanAnalyzer(TEST_VERSION_CURRENT), 10000*RANDOM_MULTIPLIER);
+  }
+}