/*
    * 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.
   */
  package org.apache.commons.math3.exception.util;
  
  
  import java.text.MessageFormat;
  import java.util.Enumeration;
  import java.util.Locale;
  import java.util.ResourceBundle;
  
  import org.junit.Assert;
  
  import org.junit.Test;
  
  public class LocalizedFormatsTest {
  
      @Test
      public void testMessageNumber() {
          Assert.assertEquals(313, LocalizedFormats.values().length);
      }
  
      @Test
      public void testAllKeysPresentInPropertiesFiles() {
          final String path = LocalizedFormats.class.getName().replaceAll("\\.", "/");
          for (final String language : new String[] { "fr" } ) {
              ResourceBundle bundle =
                  ResourceBundle.getBundle("assets/" + path, new Locale(language));
              for (LocalizedFormats message : LocalizedFormats.values()) {
                  final String messageKey = message.toString();
                  boolean keyPresent = false;
                  for (final Enumeration<String> keys = bundle.getKeys(); keys.hasMoreElements();) {
                      keyPresent |= messageKey.equals(keys.nextElement());
                  }
                  Assert.assertTrue("missing key \"" + message.name() + "\" for language " + language,
                                    keyPresent);
              }
              Assert.assertEquals(language, bundle.getLocale().getLanguage());
          }
  
      }
  
      @Test
      public void testAllPropertiesCorrespondToKeys() {
          final String path = LocalizedFormats.class.getName().replaceAll("\\.", "/");
          for (final String language : new String[] { "fr" } ) {
              ResourceBundle bundle =
                  ResourceBundle.getBundle("assets/" + path, new Locale(language));
              for (final Enumeration<String> keys = bundle.getKeys(); keys.hasMoreElements();) {
                  final String propertyKey = keys.nextElement();
                  try {
                      Assert.assertNotNull(LocalizedFormats.valueOf(propertyKey));
                  } catch (IllegalArgumentException iae) {
                      Assert.fail("unknown key \"" + propertyKey + "\" in language " + language);
                  }
              }
              Assert.assertEquals(language, bundle.getLocale().getLanguage());
          }
  
      }
  
      @Test
      public void testNoMissingFrenchTranslation() {
          for (LocalizedFormats message : LocalizedFormats.values()) {
              String translated = message.getLocalizedString(Locale.FRENCH);
              Assert.assertFalse(message.name(), translated.toLowerCase().contains("missing translation"));
          }
      }
  
      @Test
      public void testNoOpEnglishTranslation() {
          for (LocalizedFormats message : LocalizedFormats.values()) {
              String translated = message.getLocalizedString(Locale.ENGLISH);
              Assert.assertEquals(message.getSourceString(), translated);
          }
      }
  
      @Test
      public void testVariablePartsConsistency() {
          for (final String language : new String[] { "fr" } ) {
              Locale locale = new Locale(language);
              for (LocalizedFormats message : LocalizedFormats.values()) {
                  MessageFormat source     = new MessageFormat(message.getSourceString());
                  MessageFormat translated = new MessageFormat(message.getLocalizedString(locale));
                  Assert.assertEquals(message.name() + " (" + language + ")",
                                      source.getFormatsByArgumentIndex().length,
                                     translated.getFormatsByArgumentIndex().length);
             }
         }
     }
 
 }