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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Translation\Tests;
use PHPUnit\Framework\TestCase;
use Symfony\Component\Translation\PluralizationRules;
/**
* Test should cover all languages mentioned on http://translate.sourceforge.net/wiki/l10n/pluralforms
* and Plural forms mentioned on http://www.gnu.org/software/gettext/manual/gettext.html#Plural-forms.
*
* See also https://developer.mozilla.org/en/Localization_and_Plurals which mentions 15 rules having a maximum of 6 forms.
* The mozilla code is also interesting to check for.
*
* As mentioned by chx http://drupal.org/node/1273968 we can cover all by testing number from 0 to 199
*
* The goal to cover all languages is to far fetched so this test case is smaller.
*
* @author Clemens Tolboom clemens@build2be.nl
*/
class PluralizationRulesTest extends TestCase
{
/**
* We test failed langcode here.
*
* TODO: The languages mentioned in the data provide need to get fixed somehow within PluralizationRules.
*
* @dataProvider failingLangcodes
*/
public function testFailedLangcodes($nplural, $langCodes)
{
$matrix = $this->generateTestData($langCodes);
$this->validateMatrix($nplural, $matrix, false);
}
/**
* @dataProvider successLangcodes
*/
public function testLangcodes($nplural, $langCodes)
{
$matrix = $this->generateTestData($langCodes);
$this->validateMatrix($nplural, $matrix);
}
/**
* This array should contain all currently known langcodes.
*
* As it is impossible to have this ever complete we should try as hard as possible to have it almost complete.
*
* @return array
*/
public function successLangcodes()
{
return array(
array('1', array('ay', 'bo', 'cgg', 'dz', 'id', 'ja', 'jbo', 'ka', 'kk', 'km', 'ko', 'ky')),
array('2', array('nl', 'fr', 'en', 'de', 'de_GE', 'hy', 'hy_AM')),
array('3', array('be', 'bs', 'cs', 'hr')),
array('4', array('cy', 'mt', 'sl')),
array('6', array('ar')),
);
}
/**
* This array should be at least empty within the near future.
*
* This both depends on a complete list trying to add above as understanding
* the plural rules of the current failing languages.
*
* @return array with nplural together with langcodes
*/
public function failingLangcodes()
{
return array(
array('1', array('fa')),
array('2', array('jbo')),
array('3', array('cbs')),
array('4', array('gd', 'kw')),
array('5', array('ga')),
);
}
/**
* We validate only on the plural coverage. Thus the real rules is not tested.
*
* @param string $nplural plural expected
* @param array $matrix containing langcodes and their plural index values
* @param bool $expectSuccess
*/
protected function validateMatrix($nplural, $matrix, $expectSuccess = true)
{
foreach ($matrix as $langCode => $data) {
$indexes = array_flip($data);
if ($expectSuccess) {
$this->assertEquals($nplural, count($indexes), "Langcode '$langCode' has '$nplural' plural forms.");
} else {
$this->assertNotEquals((int) $nplural, count($indexes), "Langcode '$langCode' has '$nplural' plural forms.");
}
}
}
protected function generateTestData($langCodes)
{
$matrix = array();
foreach ($langCodes as $langCode) {
for ($count = 0; $count < 200; ++$count) {
$plural = PluralizationRules::get($count, $langCode);
$matrix[$langCode][$count] = $plural;
}
}
return $matrix;
}
}