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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      https://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  /*
19   * This is not the original file distributed by the Apache Software Foundation
20   * It has been modified by the Hipparchus project
21   */
22  package org.hipparchus.exception;
23  
24  
25  import java.lang.reflect.InvocationTargetException;
26  import java.text.MessageFormat;
27  import java.util.Enumeration;
28  import java.util.Locale;
29  import java.util.ResourceBundle;
30  
31  import org.junit.Assert;
32  import org.junit.Test;
33  
34  public abstract class LocalizedFormatsAbstractTest {
35  
36      protected abstract Class<? extends Enum<?>> getFormatsClass();
37      protected abstract int getExpectedNumber();
38  
39      private Localizable[] getValues() {
40          Localizable[] localizable = null;
41          try {
42              Object[] a = (Object[]) getFormatsClass().getMethod("values").invoke(null);
43              localizable = new Localizable[a.length];
44              for (int i = 0; i < a.length; ++i) {
45                  localizable[i] = (Localizable) a[i];
46              }
47          } catch (NoSuchMethodException | SecurityException | IllegalAccessException |
48                          IllegalArgumentException | InvocationTargetException e) {
49              Assert.fail(e.getLocalizedMessage());
50          }
51          return localizable;
52      }
53  
54      private Localizable valueOf(String s) {
55          Localizable localizable = null;
56          try {
57              localizable = (Localizable) getFormatsClass().getMethod("valueOf", String.class).invoke(null, s);
58          } catch (IllegalArgumentException iae) {
59              localizable = null;
60          } catch (NoSuchMethodException | SecurityException | IllegalAccessException | InvocationTargetException e) {
61              Assert.fail(s + " <-> " + e.getLocalizedMessage());
62          }
63          return localizable;
64      }
65  
66      @Test
67      public void testMessageNumber() {
68          Assert.assertEquals(getExpectedNumber(), getValues().length);
69      }
70  
71      @Test
72      public void testAllKeysPresentInPropertiesFiles() {
73          Class<? extends Enum<?>> c = getFormatsClass();
74          final String path = c.getName().replaceAll("\\.", "/");
75          for (final String language : new String[] { "fr" } ) {
76              ResourceBundle bundle =
77                  ResourceBundle.getBundle("assets/" + path, new Locale(language), c.getClassLoader());
78              for (Localizable message : getValues()) {
79                  final String messageKey = message.toString();
80                  boolean keyPresent = false;
81                  for (final Enumeration<String> keys = bundle.getKeys(); keys.hasMoreElements();) {
82                      keyPresent |= messageKey.equals(keys.nextElement());
83                  }
84                  Assert.assertTrue("missing key \"" + message.toString() + "\" for language " + language,
85                                    keyPresent);
86              }
87              Assert.assertEquals(language, bundle.getLocale().getLanguage());
88          }
89  
90      }
91  
92      @Test
93      public void testAllPropertiesCorrespondToKeys() {
94          Class<? extends Enum<?>> c = getFormatsClass();
95          final String path = c.getName().replaceAll("\\.", "/");
96          for (final String language : new String[] { "fr" } ) {
97              ResourceBundle bundle =
98                  ResourceBundle.getBundle("assets/" + path, new Locale(language), c.getClassLoader());
99              for (final Enumeration<String> keys = bundle.getKeys(); keys.hasMoreElements();) {
100                 final String propertyKey = keys.nextElement();
101                 try {
102                     Assert.assertNotNull(valueOf(propertyKey));
103                 } catch (IllegalArgumentException iae) {
104                     Assert.fail("unknown key \"" + propertyKey + "\" in language " + language);
105                 }
106             }
107             Assert.assertEquals(language, bundle.getLocale().getLanguage());
108         }
109 
110     }
111 
112     @Test
113     public void testNoMissingFrenchTranslation() {
114         for (Localizable message : getValues()) {
115             String translated = message.getLocalizedString(Locale.FRENCH);
116             Assert.assertFalse(message.toString(), translated.toLowerCase().contains("missing translation"));
117         }
118     }
119 
120     @Test
121     public void testNoOpEnglishTranslation() {
122         for (Localizable message : getValues()) {
123             String translated = message.getLocalizedString(Locale.ENGLISH);
124             Assert.assertEquals(message.getSourceString(), translated);
125         }
126     }
127 
128     @Test
129     public void testVariablePartsConsistency() {
130         for (final String language : new String[] { "fr" } ) {
131             Locale locale = new Locale(language);
132             for (Localizable message : getValues()) {
133                 MessageFormat source     = new MessageFormat(message.getSourceString());
134                 MessageFormat translated = new MessageFormat(message.getLocalizedString(locale));
135                 Assert.assertEquals(message.toString() + " (" + language + ")",
136                                     source.getFormatsByArgumentIndex().length,
137                                     translated.getFormatsByArgumentIndex().length);
138             }
139         }
140     }
141 
142 }