LanguageClassesTestCase.php

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<?php
abstract class LanguageClassesTestCase extends MediaWikiTestCase {
    private $languageObject;

    protected function getLang() {
        return $this->languageObject;
    }

    protected function setUp() {
        parent::setUp();
        $found = preg_match( '/Language(.+)Test/', get_called_class(), $m );
        if ( $found ) {
            # Normalize language code since classes uses underscores
            $m[1] = str_replace( '_', '-', $m[1] );
        } else {
            # Fallback to english language
            $m[1] = 'en';
            wfDebug(
                __METHOD__ . " could not extract a language name "
                    . "out of " . get_called_class() . " failling back to 'en'\n"
            );
        }
        // @todo validate $m[1] which should be a valid language code
        $this->languageObject = Language::factory( $m[1] );
    }

    protected function tearDown() {
        unset( $this->languageObject );
        parent::tearDown();
    }
}