vendor/symfony/translation/Symfony/Component/Translation/Tests/PluralizationRulesTest.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Translation\Tests;
  13
  14 use Symfony\Component\Translation\PluralizationRules;
  15
  16 /**
  17  * Test should cover all languages mentioned on http://translate.sourceforge.net/wiki/l10n/pluralforms
  18  * and Plural forms mentioned on http://www.gnu.org/software/gettext/manual/gettext.html#Plural-forms
  19  *
  20  * See also https://developer.mozilla.org/en/Localization_and_Plurals which mentions 15 rules having a maximum of 6 forms.
  21  * The mozilla code is also interesting to check for.
  22  *
  23  * As mentioned by chx http://drupal.org/node/1273968 we can cover all by testing number from 0 to 199
  24  *
  25  * The goal to cover all languages is to far fetched so this test case is smaller.
  26  *
  27  * @author Clemens Tolboom clemens@build2be.nl
  28  */
  29 class PluralizationRulesTest  extends \PHPUnit_Framework_TestCase
  30 {
  31
  32     /**
  33      * We test failed langcode here.
  34      *
  35      * TODO: The languages mentioned in the data provide need to get fixed somehow within PluralizationRules.
  36      *
  37      * @dataProvider failingLangcodes
  38      */
  39     public function testFailedLangcodes($nplural, $langCodes)
  40     {
  41         $matrix = $this->generateTestData($nplural, $langCodes);
  42         $this->validateMatrix($nplural, $matrix, false);
  43     }
  44
  45     /**
  46      * @dataProvider successLangcodes
  47      */
  48     public function testLangcodes($nplural, $langCodes)
  49     {
  50         $matrix = $this->generateTestData($nplural, $langCodes);
  51         $this->validateMatrix($nplural, $matrix);
  52     }
  53
  54     /**
  55      * This array should contain all currently known langcodes.
  56      *
  57      * As it is impossible to have this ever complete we should try as hard as possible to have it almost complete.
  58      *
  59      * @return type
  60      */
  61     public function successLangcodes()
  62     {
  63       return array(
  64         array('1' , array('ay','bo', 'cgg','dz','id', 'ja', 'jbo', 'ka','kk','km','ko','ky')),
  65         array('2' , array('nl', 'fr', 'en', 'de', 'de_GE')),
  66         array('3' , array('be','bs','cs','hr')),
  67         array('4' , array('cy','mt', 'sl')),
  68         array('5' , array()),
  69         array('6' , array('ar')),
  70       );
  71     }
  72
  73     /**
  74      * This array should be at least empty within the near future.
  75      *
  76      * This both depends on a complete list trying to add above as understanding
  77      * the plural rules of the current failing languages.
  78      *
  79      * @return array with nplural together with langcodes
  80      */
  81     public function failingLangcodes()
  82     {
  83       return array(
  84         array('1' , array('fa')),
  85         array('2' , array('jbo')),
  86         array('3' , array('cbs')),
  87         array('4' , array('gd','kw')),
  88         array('5' , array('ga')),
  89         array('6' , array()),
  90       );
  91     }
  92
  93     /**
  94      * We validate only on the plural coverage. Thus the real rules is not tested.
  95      *
  96      * @param string  $nplural       plural expected
  97      * @param array   $matrix        containing langcodes and their plural index values.
  98      * @param boolean $expectSuccess
  99      */
 100     protected function validateMatrix($nplural, $matrix, $expectSuccess = true)
 101     {
 102         foreach ($matrix as $langCode => $data) {
 103             $indexes = array_flip($data);
 104             if ($expectSuccess) {
 105                 $this->assertEquals($nplural, count($indexes), "Langcode '$langCode' has '$nplural' plural forms.");
 106             } else {
 107                 $this->assertNotEquals((int) $nplural, count($indexes), "Langcode '$langCode' has '$nplural' plural forms.");
 108             }
 109         }
 110     }
 111
 112     protected function generateTestData($plural, $langCodes)
 113     {
 114         $matrix = array();
 115         foreach ($langCodes as $langCode) {
 116             for ($count=0; $count<200; $count++) {
 117                 $plural = PluralizationRules::get($count, $langCode);
 118                 $matrix[$langCode][$count] = $plural;
 119             }
 120         }
 121
 122         return $matrix;
 123     }
 124 }