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diff --git a/JLanguageTool/src/test/de/danielnaber/languagetool/TranslationTest.java b/JLanguageTool/src/test/de/danielnaber/languagetool/TranslationTest.java
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+++ b/JLanguageTool/src/test/de/danielnaber/languagetool/TranslationTest.java
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+/* LanguageTool, a natural language style checker 
+ * Copyright (C) 2007 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;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+import java.util.Set;
+
+import de.danielnaber.languagetool.tools.StringTools;
+
+import junit.framework.TestCase;
+
+/**
+ * Check if the translations seem to be complete.
+ * 
+ * @author Daniel Naber
+ */
+public class TranslationTest extends TestCase {
+
+  public void testTranslationKeyExistence() throws IOException {
+    // use English version as the reference:
+    File englishFile = getTranslationFile(Language.ENGLISH);
+    Properties enProps = new Properties();
+    enProps.load(new FileInputStream(englishFile));
+    Set<Object> englishKeys = enProps.keySet();
+    for (int i = 0; i < Language.LANGUAGES.length; i++) {
+      Language lang = Language.LANGUAGES[i];
+      if (lang == Language.ENGLISH || lang == Language.DEMO)
+        continue;
+      Properties langProps = new Properties();
+      File langFile = getTranslationFile(lang);
+      if (!langFile.exists())
+        continue;
+      langProps.load(new FileInputStream(langFile));
+      Set<Object> langKeys = langProps.keySet();
+      for (Object englishKey : englishKeys) {
+        if (!langKeys.contains(englishKey)) {
+          System.err.println("***** No key '" + englishKey + "' in file " + langFile);
+        }
+      }
+    }
+  }
+
+  /**
+   * Make sure values are not empty.
+   */
+  public void testTranslationsAreNotEmpty() throws IOException {
+    for (int i = 0; i < Language.LANGUAGES.length; i++) {
+      Language lang = Language.LANGUAGES[i];
+      if (lang == Language.DEMO)
+        continue;
+      File file = getTranslationFile(lang);
+      if (!file.exists()) {
+        System.err.println("Note: no translation available for " + lang);
+        continue;
+      }
+      List<String> lines = loadFile(file);
+      for (String line : lines) {
+        line = line.trim();
+        if (StringTools.isEmpty(line) || line.charAt(0)=='#')
+          continue;
+        String[] parts = line.split("=");
+        if (parts.length < 2) {
+          System.err.println("***** Empty translation: '" + line + "' in file " + file);
+          //fail("Empty translation: '" + line + "' in file " + file);
+        }
+      }
+    }
+  }
+  
+  private List<String> loadFile(File file) throws IOException {
+    List<String> l = new ArrayList<String>();
+    FileReader fr = null;
+    BufferedReader br = null;
+    try {
+      fr = new FileReader(file);
+      br = new BufferedReader(fr);
+      String line;
+      while ((line = br.readLine()) != null) {
+        l.add(line);
+      }
+    } finally {
+      if (br != null) br.close();
+      if (fr != null) fr.close();
+    }
+    return l;
+  }
+
+  private File getTranslationFile(Language lang) {
+    return new File("src" + File.separator + "java" + File.separator
+        + "de" + File.separator + "danielnaber" + File.separator + "languagetool" 
+        + File.separator + "MessagesBundle_" + lang.getShortName() + ".properties");
+  }
+
+}