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<?php
/**
* @covers LanguageCode
* @group Language
*
* @author Thiemo Kreuz
*/
class LanguageCodeTest extends PHPUnit\Framework\TestCase {
use MediaWikiCoversValidator;
public function testConstructor() {
$instance = new LanguageCode();
$this->assertInstanceOf( LanguageCode::class, $instance );
}
public function testGetDeprecatedCodeMapping() {
$map = LanguageCode::getDeprecatedCodeMapping();
$this->assertInternalType( 'array', $map );
$this->assertContainsOnly( 'string', array_keys( $map ) );
$this->assertArrayNotHasKey( '', $map );
$this->assertContainsOnly( 'string', $map );
$this->assertNotContains( '', $map );
// Codes special to MediaWiki should never appear in a map of "deprecated" codes
$this->assertArrayNotHasKey( 'qqq', $map, 'documentation' );
$this->assertNotContains( 'qqq', $map, 'documentation' );
$this->assertArrayNotHasKey( 'qqx', $map, 'debug code' );
$this->assertNotContains( 'qqx', $map, 'debug code' );
// Valid language codes that are currently not "deprecated"
$this->assertArrayNotHasKey( 'bh', $map, 'family of Bihari languages' );
$this->assertArrayNotHasKey( 'no', $map, 'family of Norwegian languages' );
$this->assertArrayNotHasKey( 'simple', $map );
}
public function testReplaceDeprecatedCodes() {
$this->assertEquals( 'gsw', LanguageCode::replaceDeprecatedCodes( 'als' ) );
$this->assertEquals( 'gsw', LanguageCode::replaceDeprecatedCodes( 'gsw' ) );
$this->assertEquals( null, LanguageCode::replaceDeprecatedCodes( null ) );
}
/**
* test @see LanguageCode::bcp47().
* Please note the BCP 47 explicitly state that language codes are case
* insensitive, there are some exceptions to the rule :)
* This test is used to verify our formatting against all lower and
* all upper cases language code.
*
* @see https://tools.ietf.org/html/bcp47
* @dataProvider provideLanguageCodes()
*/
public function testBcp47( $code, $expected ) {
$code = strtolower( $code );
$this->assertEquals( $expected, LanguageCode::bcp47( $code ),
"Applying BCP47 standard to lower case '$code'"
);
$code = strtoupper( $code );
$this->assertEquals( $expected, LanguageCode::bcp47( $code ),
"Applying BCP47 standard to upper case '$code'"
);
}
/**
* Array format is ($code, $expected)
*/
public static function provideLanguageCodes() {
return [
// Extracted from BCP 47 (list not exhaustive)
# 2.1.1
[ 'en-ca-x-ca', 'en-CA-x-ca' ],
[ 'sgn-be-fr', 'sgn-BE-FR' ],
[ 'az-latn-x-latn', 'az-Latn-x-latn' ],
# 2.2
[ 'sr-Latn-RS', 'sr-Latn-RS' ],
[ 'az-arab-ir', 'az-Arab-IR' ],
# 2.2.5
[ 'sl-nedis', 'sl-nedis' ],
[ 'de-ch-1996', 'de-CH-1996' ],
# 2.2.6
[
'en-latn-gb-boont-r-extended-sequence-x-private',
'en-Latn-GB-boont-r-extended-sequence-x-private'
],
// Examples from BCP 47 Appendix A
# Simple language subtag:
[ 'DE', 'de' ],
[ 'fR', 'fr' ],
[ 'ja', 'ja' ],
# Language subtag plus script subtag:
[ 'zh-hans', 'zh-Hans' ],
[ 'sr-cyrl', 'sr-Cyrl' ],
[ 'sr-latn', 'sr-Latn' ],
# Extended language subtags and their primary language subtag
# counterparts:
[ 'zh-cmn-hans-cn', 'zh-cmn-Hans-CN' ],
[ 'cmn-hans-cn', 'cmn-Hans-CN' ],
[ 'zh-yue-hk', 'zh-yue-HK' ],
[ 'yue-hk', 'yue-HK' ],
# Language-Script-Region:
[ 'zh-hans-cn', 'zh-Hans-CN' ],
[ 'sr-latn-RS', 'sr-Latn-RS' ],
# Language-Variant:
[ 'sl-rozaj', 'sl-rozaj' ],
[ 'sl-rozaj-biske', 'sl-rozaj-biske' ],
[ 'sl-nedis', 'sl-nedis' ],
# Language-Region-Variant:
[ 'de-ch-1901', 'de-CH-1901' ],
[ 'sl-it-nedis', 'sl-IT-nedis' ],
# Language-Script-Region-Variant:
[ 'hy-latn-it-arevela', 'hy-Latn-IT-arevela' ],
# Language-Region:
[ 'de-de', 'de-DE' ],
[ 'en-us', 'en-US' ],
[ 'es-419', 'es-419' ],
# Private use subtags:
[ 'de-ch-x-phonebk', 'de-CH-x-phonebk' ],
[ 'az-arab-x-aze-derbend', 'az-Arab-x-aze-derbend' ],
/**
* Previous test does not reflect the BCP 47 which states:
* az-Arab-x-AZE-derbend
* AZE being private, it should be lower case, hence the test above
* should probably be:
* [ 'az-arab-x-aze-derbend', 'az-Arab-x-AZE-derbend' ],
*/
# Private use registry values:
[ 'x-whatever', 'x-whatever' ],
[ 'qaa-qaaa-qm-x-southern', 'qaa-Qaaa-QM-x-southern' ],
[ 'de-qaaa', 'de-Qaaa' ],
[ 'sr-latn-qm', 'sr-Latn-QM' ],
[ 'sr-qaaa-rs', 'sr-Qaaa-RS' ],
# Tags that use extensions
[ 'en-us-u-islamcal', 'en-US-u-islamcal' ],
[ 'zh-cn-a-myext-x-private', 'zh-CN-a-myext-x-private' ],
[ 'en-a-myext-b-another', 'en-a-myext-b-another' ],
# Invalid:
// de-419-DE
// a-DE
// ar-a-aaa-b-bbb-a-ccc
];
}
}
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