<?php

namespace SilverStripe\i18n\Tests;

use SilverStripe\Assets\Filesystem;
use SilverStripe\Control\Director;
use SilverStripe\Core\Convert;
use SilverStripe\Core\Manifest\ClassManifest;
use SilverStripe\Core\Manifest\ClassLoader;
use SilverStripe\Dev\SapphireTest;
use SilverStripe\i18n\i18n;
use SilverStripe\i18n\i18nRailsYamlAdapter;
use SilverStripe\i18n\Tests\i18nTest\CustomTranslatorAdapter;
use SilverStripe\i18n\Tests\i18nTest\MyObject;
use SilverStripe\i18n\Tests\i18nTest\MySubObject;
use SilverStripe\i18n\Tests\i18nTest\OtherCustomTranslatorAdapter;
use SilverStripe\i18n\Tests\i18nTest\TestDataObject;
use SilverStripe\i18n\Tests\i18nTest\TestObject;
use SilverStripe\View\ArrayData;
use SilverStripe\View\SSViewer;
use SilverStripe\View\ThemeResourceLoader;
use SilverStripe\View\ThemeManifest;
use Zend_Translate;

require_once 'Zend/Translate.php';

class i18nTest extends SapphireTest {

	/**
	 * @var string $tmpBasePath Used to write language files.
	 * We don't want to store them inside framework (or in any web-accessible place)
	 * in case something goes wrong with the file parsing.
	 */
	protected $alternateBaseSavePath;

	/**
	 * @var string $alternateBasePath Fake webroot with a single module
	 * /i18ntestmodule which contains some files with _t() calls.
	 */
	protected $alternateBasePath;

	protected $extraDataObjects = [
		TestDataObject::class
	];

	protected $preloadClasses = [
		OtherCustomTranslatorAdapter::class,
		CustomTranslatorAdapter::class,
		TestObject::class,
		MySubObject::class,
		MyObject::class
	];


	public function setUp() {
		parent::setUp();

		// Force loading of classes before manifests potentially break autoloading
		foreach($this->preloadClasses as $class) {
			if (!class_exists($class)) {
				throw new \LogicException("Could not load class $class");
			}
		}

		$s = DIRECTORY_SEPARATOR;
		$this->alternateBasePath = __DIR__ . $s . 'i18nTest' . $s . "_fakewebroot";
		$this->alternateBaseSavePath = TEMP_FOLDER . $s . 'i18nTextCollectorTest_webroot';
		Filesystem::makeFolder($this->alternateBaseSavePath);
		Director::config()->update('alternate_base_folder', $this->alternateBasePath);

		// Replace old template loader with new one with alternate base path
		$this->_oldLoader = ThemeResourceLoader::instance();
		ThemeResourceLoader::set_instance($loader = new ThemeResourceLoader($this->alternateBasePath));
		$loader->addSet('$default', new ThemeManifest(
			$this->alternateBasePath, project(), false, true
		));

		SSViewer::config()->update('theme', 'testtheme1');

		$this->originalLocale = i18n::get_locale();

		// Override default adapter to avoid cached translations between tests.
		// Emulates behaviour in i18n::get_translators()
		$this->origAdapter = i18n::get_translator('core');
		$adapter = new Zend_Translate(array(
			'adapter' => i18nRailsYamlAdapter::class,
			'locale' => i18n::config()->get('default_locale'),
			'disableNotices' => true,
		));
		i18n::register_translator($adapter, 'core');
		$adapter->removeCache();
		i18n::include_by_locale('en');
	}

	/**
	 * Number of test manifests
	 *
	 * @var int
	 */
	protected $manifests = 0;

	/**
	 * Safely push a new class manifest.
	 * These will be cleaned up on tearDown()
	 *
	 * @param ClassManifest $manifest
	 */
	protected function pushManifest(ClassManifest $manifest) {
		$this->manifests++;
		ClassLoader::instance()->pushManifest($manifest);
	}

	public function tearDown() {
		ThemeResourceLoader::set_instance($this->_oldLoader);
		i18n::set_locale($this->originalLocale);
		i18n::register_translator($this->origAdapter, 'core');

		while($this->manifests > 0) {
			ClassLoader::instance()->popManifest();
			$this->manifests--;
		}

		parent::tearDown();
	}

	public function testGetExistingTranslations() {
		$translations = i18n::get_existing_translations();
		$this->assertTrue(isset($translations['en_US']), 'Checking for en translation');
		$this->assertEquals($translations['en_US'], 'English (United States)');
		$this->assertTrue(isset($translations['de_DE']), 'Checking for de_DE translation');
	}

	public function testGetClosestTranslation() {

		// Validate necessary assumptions for this test
		$translations = i18n::get_existing_translations();
		$this->assertTrue(isset($translations['en_US']));
		$this->assertTrue(isset($translations['en_GB']));
		$this->assertTrue(isset($translations['es_ES']));
		$this->assertTrue(isset($translations['es_AR']));
		$this->assertFalse(isset($translations['en_ZZ']));
		$this->assertFalse(isset($translations['es_ZZ']));
		$this->assertFalse(isset($translations['zz_ZZ']));

		// Test indeterminate locales
		$this->assertEmpty(i18n::get_closest_translation('zz_ZZ'));

		// Test english fallback
		$this->assertEquals('en_US', i18n::get_closest_translation('en_US'));
		$this->assertEquals('en_GB', i18n::get_closest_translation('en_GB'));
		$this->assertEquals('en_US', i18n::get_closest_translation('en_ZZ'));

		// Test spanish fallbacks
		$this->assertEquals('es_AR', i18n::get_closest_translation('es_AR'));
		$this->assertEquals('es_ES', i18n::get_closest_translation('es_ES'));
		$this->assertEquals('es_ES', i18n::get_closest_translation('es_XX'));
	}

	public function testDataObjectFieldLabels() {
		$oldLocale = i18n::get_locale();
		i18n::set_locale('de_DE');
		$obj = new i18nTest\TestDataObject();

		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTest_DataObject.MyProperty' => 'MyProperty'
		), 'en_US');
		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTest_DataObject.MyProperty' => 'Mein Attribut'
		), 'de_DE');

		$this->assertEquals(
			$obj->fieldLabel('MyProperty'),
			'Mein Attribut'
		);

		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTest_DataObject.MyUntranslatedProperty' => 'Mein Attribut'
		), 'en_US');
		$this->assertEquals(
			$obj->fieldLabel('MyUntranslatedProperty'),
			'My Untranslated Property'
		);

		i18n::set_locale($oldLocale);
	}

	public function testProvideI18nEntities() {
		$oldLocale = i18n::get_locale();
		i18n::set_locale('en_US');

		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTest_Object.MyProperty' => 'Untranslated'
		), 'en_US');
		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTest_Object.my_translatable_property' => 'Übersetzt'
		), 'de_DE');

		$this->assertEquals(
			i18nTest\TestObject::$my_translatable_property,
			'Untranslated'
		);
		$this->assertEquals(
			i18nTest\TestObject::my_translatable_property(),
			'Untranslated'
		);

		i18n::set_locale('en_US');
		$this->assertEquals(
			i18nTest\TestObject::my_translatable_property(),
			'Untranslated',
			'Getter returns original static value when called in default locale'
		);

		i18n::set_locale('de_DE');
		$this->assertEquals(
			i18nTest\TestObject::my_translatable_property(),
			'Übersetzt',
			'Getter returns translated value when called in another locale'
		);
	}

	public function testTemplateTranslation() {
		$oldLocale = i18n::get_locale();

		i18n::set_locale('en_US');
		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTestModule.MAINTEMPLATE' => 'Main Template',
			'i18nTestModule.ss.SPRINTFNONAMESPACE' => 'My replacement no namespace: %s',
			'i18nTestModule.LAYOUTTEMPLATE' => 'Layout Template',
			'i18nTestModule.ss.LAYOUTTEMPLATENONAMESPACE' => 'Layout Template no namespace',
			'i18nTestModule.SPRINTFNAMESPACE' => 'My replacement: %s',
			'i18nTestModule.WITHNAMESPACE' => 'Include Entity with Namespace',
			'i18nTestModuleInclude.ss.NONAMESPACE' => 'Include Entity without Namespace',
			'i18nTestModuleInclude.ss.SPRINTFINCLUDENAMESPACE' => 'My include replacement: %s',
			'i18nTestModuleInclude.ss.SPRINTFINCLUDENONAMESPACE' => 'My include replacement no namespace: %s'
		), 'en_US');

		$viewer = new SSViewer('i18nTestModule');
		$parsedHtml = Convert::nl2os($viewer->process(new ArrayData(array('TestProperty' => 'TestPropertyValue'))));
		$this->assertContains(
			Convert::nl2os("Layout Template\n"),
			$parsedHtml
		);
		$this->assertContains(
			Convert::nl2os("Layout Template no namespace\n"),
			$parsedHtml
		);

		i18n::set_locale('de_DE');
		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTestModule.MAINTEMPLATE' => 'TRANS Main Template',
			'i18nTestModule.ss.SPRINTFNONAMESPACE' => 'TRANS My replacement no namespace: %s',
			'i18nTestModule.LAYOUTTEMPLATE' => 'TRANS Layout Template',
			'i18nTestModule.ss.LAYOUTTEMPLATENONAMESPACE' => 'TRANS Layout Template no namespace',
			'i18nTestModule.SPRINTFNAMESPACE' => 'TRANS My replacement: %s',
			'i18nTestModule.WITHNAMESPACE' => 'TRANS Include Entity with Namespace',
			'i18nTestModuleInclude.ss.NONAMESPACE' => 'TRANS Include Entity without Namespace',
			'i18nTestModuleInclude.ss.SPRINTFINCLUDENAMESPACE' => 'TRANS My include replacement: %s',
			'i18nTestModuleInclude.ss.SPRINTFINCLUDENONAMESPACE' => 'TRANS My include replacement no namespace: %s'
		), 'de_DE');

		$viewer = new SSViewer('i18nTestModule');
		$parsedHtml = Convert::nl2os($viewer->process(new ArrayData(array('TestProperty' => 'TestPropertyValue'))));
		$this->assertContains(
			Convert::nl2os("TRANS Main Template\n"),
			$parsedHtml
		);
		$this->assertContains(
			Convert::nl2os("TRANS Layout Template\n"),
			$parsedHtml
		);
		$this->assertContains(
			Convert::nl2os("TRANS Layout Template no namespace\n"),
			$parsedHtml
		);
		$this->assertContains(
			Convert::nl2os("TRANS My replacement: TestPropertyValue\n"),
			$parsedHtml
		);
		$this->assertContains(
			Convert::nl2os("TRANS Include Entity with Namespace\n"),
			$parsedHtml
		);
		$this->assertContains(
			Convert::nl2os("TRANS Include Entity without Namespace\n"),
			$parsedHtml
		);
		$this->assertContains(
			Convert::nl2os("TRANS My include replacement: TestPropertyValue\n"),
			$parsedHtml
		);
		$this->assertContains(
			Convert::nl2os("TRANS My include replacement no namespace: TestPropertyValue\n"),
			$parsedHtml
		);

		i18n::set_locale($oldLocale);
	}

	public function testNewTMethodSignature() {
		global $lang;
		$oldLocale = i18n::get_locale();

		i18n::set_locale('en_US');

		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTestModule.NEWMETHODSIG' => 'TRANS New _t method signature test',
			'i18nTestModule.INJECTIONS' => 'TRANS Hello {name} {greeting}. But it is late, {goodbye}',
			'i18nTestModule.INJECTIONSLEGACY' => 'TRANS Hello %s %s. But it is late, %s',
		), 'en_US');

		$entity = "i18nTestModule.INJECTIONS";
		$default = "Hello {name} {greeting}. But it is late, {goodbye}";

		$translated = i18n::_t('i18nTestModule.NEWMETHODSIG',"New _t method signature test");
		$this->assertContains(
			"TRANS New _t method signature test",
			$translated
		);

		$translated = i18n::_t($entity.'_DOES_NOT_EXIST', $default,
			array("name"=>"Mark", "greeting"=>"welcome", "goodbye"=>"bye"));
		$this->assertContains(
			"Hello Mark welcome. But it is late, bye",
			$translated, "Testing fallback to the translation default (but using the injection array)"
		);

		$translated = i18n::_t($entity, $default,
			array("name"=>"Paul", "greeting"=>"good you are here", "goodbye"=>"see you"));
		$this->assertContains(
			"TRANS Hello Paul good you are here. But it is late, see you",
			$translated, "Testing entity, default string and injection array"
		);

		$translated = i18n::_t($entity, $default, "New context (this should be ignored)",
			array("name"=>"Steffen", "greeting"=>"willkommen", "goodbye"=>"wiedersehen"));
		$this->assertContains(
			"TRANS Hello Steffen willkommen. But it is late, wiedersehen",
			$translated, "Full test of translation, using default, context and injection array"
		);

		$translated = i18n::_t($entity, array("name"=>"Cat", "greeting"=>"meow", "goodbye"=>"meow"));
		$this->assertContains(
			"TRANS Hello Cat meow. But it is late, meow",
			$translated, "Testing a translation with just entity and injection array"
		);

		$translated = i18n::_t(
			'i18nTestModule.INJECTIONSLEGACY', // has %s placeholders
			array("name"=>"Cat", "greeting2"=>"meow", "goodbye"=>"meow")
		);
		$this->assertContains(
			"TRANS Hello Cat meow. But it is late, meow",
			$translated, "Testing sprintf placeholders with named injections"
		);

		$translated = i18n::_t(
			'i18nTestModule.INJECTIONSLEGACY', // has %s placeholders
			array("Cat", "meow"/*, "meow" */) // remove third arg
		);
		$this->assertContains(
			"TRANS Hello Cat meow. But it is late, ",
			$translated, "Testing sprintf placeholders with unnamed injections and too few args"
		);

		$translated = i18n::_t(
			'i18nTestModule.INJECTIONS', // has {name} placeholders
			array("Cat", "meow", "meow")
		);
		$this->assertContains(
			"TRANS Hello Cat meow. But it is late, meow",
			$translated, "Testing named injection placeholders with unnamed injections"
		);

		i18n::set_locale($oldLocale);
	}

	/**
	 * See @i18nTestModule.ss for the template that is being used for this test
	 * */
	public function testNewTemplateTranslation() {
		global $lang;
		$oldLocale = i18n::get_locale();

		i18n::set_locale('en_US');
		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTestModule.NEWMETHODSIG' => 'TRANS New _t method signature test',
			'i18nTestModule.INJECTIONS' => 'TRANS Hello {name} {greeting}. But it is late, {goodbye}'
		),'en_US');

		$viewer = new SSViewer('i18nTestModule');
		$parsedHtml = Convert::nl2os($viewer->process(new ArrayData(array('TestProperty' => 'TestPropertyValue'))));
		$this->assertContains(
			Convert::nl2os("Hello Mark welcome. But it is late, bye\n"),
			$parsedHtml, "Testing fallback to the translation default (but using the injection array)"
		);

		$this->assertContains(
			Convert::nl2os("TRANS Hello Paul good you are here. But it is late, see you\n"),
			$parsedHtml, "Testing entity, default string and injection array"
		);

		$this->assertContains(
			Convert::nl2os("TRANS Hello Cat meow. But it is late, meow\n"),
			$parsedHtml, "Testing a translation with just entity and injection array"
		);

		//test injected calls
		$this->assertContains(
			Convert::nl2os(
				"TRANS Hello ".Director::absoluteBaseURL()." ".i18n::get_locale().". But it is late, global calls\n"
			),
			$parsedHtml,
			"Testing a translation with just entity and injection array, but with global variables injected in"
		);

		i18n::set_locale($oldLocale);
	}

	public function testGetLocaleFromLang() {
		$this->assertEquals('en_US', i18n::get_locale_from_lang('en'));
		$this->assertEquals('de_DE', i18n::get_locale_from_lang('de_DE'));
		$this->assertEquals('xy_XY', i18n::get_locale_from_lang('xy'));
	}

	public function testValidateLocale() {
		$this->assertTrue(i18n::validate_locale('en_US'), 'Known locale in underscore format is valid');
		$this->assertTrue(i18n::validate_locale('en-US'), 'Known locale in dash format is valid');
		$this->assertFalse(i18n::validate_locale('en'), 'Short lang format is not valid');
		$this->assertFalse(i18n::validate_locale('xx_XX'), 'Unknown locale in correct format is not valid');
		$this->assertFalse(i18n::validate_locale(''), 'Empty string is not valid');
	}

	public function testTranslate() {
		$oldLocale = i18n::get_locale();

		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTestModule.ENTITY' => 'Entity with "Double Quotes"',
		), 'en_US');
		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTestModule.ENTITY' => 'Entity with "Double Quotes" (de)',
			'i18nTestModule.ADDITION' => 'Addition (de)',
		), 'de');
		i18n::get_translator('core')->getAdapter()->addTranslation(array(
			'i18nTestModule.ENTITY' => 'Entity with "Double Quotes" (de_AT)',
		), 'de_AT');


		$this->assertEquals(i18n::_t('i18nTestModule.ENTITY'), 'Entity with "Double Quotes"',
			'Returns translation in default language'
		);

		i18n::set_locale('de');
		$this->assertEquals(i18n::_t('i18nTestModule.ENTITY'), 'Entity with "Double Quotes" (de)',
			'Returns translation according to current locale'
		);

		i18n::set_locale('de_AT');
		$this->assertEquals(i18n::_t('i18nTestModule.ENTITY'), 'Entity with "Double Quotes" (de_AT)',
			'Returns specific regional translation if available'
		);
		$this->assertEquals(i18n::_t('i18nTestModule.ADDITION'), 'Addition (de)',
			'Returns fallback non-regional translation if regional is not available'
		);

		i18n::set_locale('fr');
		$this->assertEquals(i18n::_t('i18nTestModule.ENTITY'), '',
			'Returns empty translation without default string if locale is not found'
		);
		$this->assertEquals(i18n::_t('i18nTestModule.ENTITY', 'default'), 'default',
			'Returns default string if locale is not found'
		);

		i18n::set_locale($oldLocale);
	}

	public function testIncludeByLocale() {
		// Looping through modules, so we can test the translation autoloading
		// Load non-exclusive to retain core class autoloading
		$classManifest = new ClassManifest($this->alternateBasePath, true, true, false);
		$this->pushManifest($classManifest);

		$adapter = i18n::get_translator('core')->getAdapter();
		$this->assertTrue($adapter->isAvailable('en'));
		$this->assertFalse($adapter->isAvailable('de'));
		$this->assertFalse($adapter->isTranslated('i18nTestModule.ENTITY', 'de'),
			'Existing unloaded entity not available before call'
		);
		$this->assertFalse($adapter->isTranslated('i18nTestModule.ENTITY', 'af'),
			'Non-existing unloaded entity not available before call'
		);

		// set _fakewebroot module priority
		i18n::config()->update('module_priority', array('subfolder','i18ntestmodule'));

		i18n::include_by_locale('de');

		$this->assertTrue($adapter->isAvailable('en'));
		$this->assertTrue($adapter->isAvailable('de'));
		$this->assertTrue($adapter->isTranslated('i18nTestModule.ENTITY', null, 'de'), 'Includes module files');
		$this->assertTrue($adapter->isTranslated('i18nTestTheme1.LAYOUTTEMPLATE', null, 'de'), 'Includes theme files');
		$this->assertTrue($adapter->isTranslated('i18nTestModule.OTHERENTITY', null, 'de'), 'Includes submodule files');

		// check module priority
		$this->assertEquals($adapter->translate('i18nTestModule.PRIORITYNOTICE', 'de'),
			'High Module Priority (de)'
		);
	}

	public function testIncludeByLocaleWithoutFallbackLanguage() {
		$classManifest = new ClassManifest($this->alternateBasePath, true, true, false);
		$this->pushManifest($classManifest);

		$adapter = i18n::get_translator('core')->getAdapter();
		$this->assertTrue($adapter->isAvailable('en'));
		$this->assertFalse($adapter->isAvailable('mi')); // not defined at all
		$this->assertFalse($adapter->isAvailable('mi_NZ')); // defined, but not loaded yet
		$this->assertFalse($adapter->isTranslated('i18nTestModule.ENTITY', 'mi'),
			'Existing unloaded entity not available before call'
		);
		$this->assertFalse($adapter->isTranslated('i18nTestModule.ENTITY', 'mi_NZ'),
			'Non-existing unloaded entity not available before call'
		);

		i18n::include_by_locale('mi_NZ');

		$this->assertFalse($adapter->isAvailable('mi'));
		$this->assertTrue($adapter->isAvailable('mi_NZ'));
		$this->assertTrue($adapter->isTranslated('i18nTestModule.ENTITY', null, 'mi_NZ'), 'Includes module files');
	}

	public function testRegisterTranslator() {
		$translator = new Zend_Translate(array(
			'adapter' => CustomTranslatorAdapter::class,
			'disableNotices' => true,
		));

		i18n::register_translator($translator, 'custom', 10);
		$translators = i18n::get_translators();
		$this->assertArrayHasKey('custom', $translators[10]);
		$this->assertInstanceOf('Zend_Translate', $translators[10]['custom']);
		$this->assertInstanceOf(CustomTranslatorAdapter::class, $translators[10]['custom']->getAdapter());

		i18n::unregister_translator('custom');
		$translators = i18n::get_translators();
		$this->assertArrayNotHasKey('custom', $translators[10]);
	}

	public function testMultipleTranslators() {
		// Looping through modules, so we can test the translation autoloading
		// Load non-exclusive to retain core class autoloading
		$classManifest = new ClassManifest($this->alternateBasePath, true, true, false);
		$this->pushManifest($classManifest);

		// Changed manifest, so we also need to unset all previously collected messages.
		// The easiest way to do this it to register a new adapter.
		$adapter = new Zend_Translate(array(
			'adapter' => i18nRailsYamlAdapter::class,
			'locale' => i18n::config()->get('default_locale'),
			'disableNotices' => true,
		));
		i18n::register_translator($adapter, 'core');

		i18n::set_locale('en_US');

		$this->assertEquals(
			i18n::_t('i18nTestModule.ENTITY'),
			'Entity with "Double Quotes"'
		);
		$this->assertEquals(
			i18n::_t('AdapterEntity1', 'AdapterEntity1'),
			'AdapterEntity1',
			'Falls back to default string if not found'
		);

		// Add a new translator
		$translator = new Zend_Translate(array(
			'adapter' => CustomTranslatorAdapter::class,
			'disableNotices' => true,
		));
		i18n::register_translator($translator, 'custom', 11);
		$this->assertEquals(
			i18n::_t('i18nTestModule.ENTITY'),
			'i18nTestModule.ENTITY CustomAdapter (en_US)',
			'Existing entities overruled by adapter with higher priority'
		);
		$this->assertEquals(
			i18n::_t('AdapterEntity1', 'AdapterEntity1'),
			'AdapterEntity1 CustomAdapter (en_US)',
			'New entities only defined in new adapter are detected'
		);

		// Add a second new translator to test priorities
		$translator = new Zend_Translate(array(
			'adapter' => OtherCustomTranslatorAdapter::class,
			'disableNotices' => true,
		));
		i18n::register_translator($translator, 'othercustom_lower_prio', 5);
		$this->assertEquals(
			i18n::_t('i18nTestModule.ENTITY'),
			'i18nTestModule.ENTITY CustomAdapter (en_US)',
			'Adapter with lower priority loses'
		);

		// Add a third new translator to test priorities
		$translator = new Zend_Translate(array(
			'adapter' => OtherCustomTranslatorAdapter::class,
			'disableNotices' => true,
		));

		i18n::register_translator($translator, 'othercustom_higher_prio', 15);

		$this->assertEquals(
			i18n::_t('i18nTestModule.ENTITY'),
			'i18nTestModule.ENTITY OtherCustomAdapter (en_US)',
			'Adapter with higher priority wins'
		);

		i18n::unregister_translator('custom');
		i18n::unregister_translator('othercustom_lower_prio');
		i18n::unregister_translator('othercustom_higher_prio');
	}

	public function testGetLanguageName() {
		i18n::config()->update(
			'common_languages',
			array('de_CGN' => array('name' => 'German (Cologne)', 'native' => 'K&ouml;lsch'))
		);
		$this->assertEquals('German (Cologne)', i18n::get_language_name('de_CGN'));
		$this->assertEquals('K&ouml;lsch', i18n::get_language_name('de_CGN', true));
	}
}