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diff --git a/JLanguageTool/src/test/de/danielnaber/languagetool/rules/WhitespaceRuleTest.java b/JLanguageTool/src/test/de/danielnaber/languagetool/rules/WhitespaceRuleTest.java
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+++ b/JLanguageTool/src/test/de/danielnaber/languagetool/rules/WhitespaceRuleTest.java
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+/* LanguageTool, a natural language style checker 
+ * Copyright (C) 2005 Daniel Naber (http://www.danielnaber.de)
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+package de.danielnaber.languagetool.rules;
+
+import java.io.IOException;
+
+import junit.framework.TestCase;
+import de.danielnaber.languagetool.JLanguageTool;
+import de.danielnaber.languagetool.Language;
+import de.danielnaber.languagetool.TestTools;
+
+/**
+ * 
+ * @author Marcin Milkowski
+ */
+public class WhitespaceRuleTest extends TestCase {
+
+    public void testRule() throws IOException {
+      WhitespaceRule rule = new WhitespaceRule(TestTools.getEnglishMessages(), Language.ENGLISH);
+      RuleMatch[] matches;
+      JLanguageTool langTool = new JLanguageTool(Language.ENGLISH);
+      
+      // correct sentences:
+      matches = rule.match(langTool.getAnalyzedSentence("This is a test sentence."));
+      assertEquals(0, matches.length);
+      matches = rule.match(langTool.getAnalyzedSentence("This is a test sentence..."));
+      assertEquals(0, matches.length);
+      matches = rule.match(langTool.getAnalyzedSentence("\n\tThis is a test sentence..."));
+      assertEquals(0, matches.length);
+      
+      // incorrect sentences:
+      matches = rule.match(langTool.getAnalyzedSentence("This  is a test sentence."));
+      assertEquals(1, matches.length);
+      assertEquals(4, matches[0].getFromPos());
+      assertEquals(6, matches[0].getToPos());      
+      matches = rule.match(langTool.getAnalyzedSentence("This is a test   sentence."));      
+      assertEquals(1, matches.length);
+      assertEquals(14, matches[0].getFromPos());
+      assertEquals(17, matches[0].getToPos());
+      matches = rule.match(langTool.getAnalyzedSentence("This is   a  test   sentence."));
+      assertEquals(3, matches.length);
+      assertEquals(7, matches[0].getFromPos());
+      assertEquals(10, matches[0].getToPos());
+      assertEquals(11, matches[1].getFromPos());
+      assertEquals(13, matches[1].getToPos());
+      assertEquals(17, matches[2].getFromPos());
+      assertEquals(20, matches[2].getToPos());
+      matches = rule.match(langTool.getAnalyzedSentence("\t\t\t    \t\t\t\t  "));
+      assertEquals(1, matches.length);
+      langTool = new JLanguageTool(Language.POLISH);
+      
+      // correct sentences:
+      matches = rule.match(langTool.getAnalyzedSentence("To jest test."));
+      assertEquals(0, matches.length);
+      matches = rule.match(langTool.getAnalyzedSentence("To jest   test."));
+      assertEquals(1, matches.length);
+    }
+
+}