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<?php
use MediaWiki\Language\Language;
use MediaWiki\Language\LanguageCode;
use MediaWiki\Languages\LanguageNameUtils;
use MediaWiki\Tests\Unit\DummyServicesTrait;
use Wikimedia\Bcp47Code\Bcp47CodeValue;
/**
* @group Language
* @covers \MediaWiki\Language\LanguageCode
*
* @author Thiemo Kreuz
*/
class LanguageCodeTest extends MediaWikiUnitTestCase {
use DummyServicesTrait;
public function testConstructor() {
$instance = new LanguageCode( 'fa' );
$this->assertInstanceOf( LanguageCode::class, $instance );
$this->assertSame( 'fa', $instance->toString() );
}
public function testGetDeprecatedCodeMapping() {
$map = LanguageCode::getDeprecatedCodeMapping();
$this->assertIsArray( $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->assertNull( 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 ) {
$this->assertEquals( $expected, LanguageCode::bcp47( $code ),
"Applying BCP 47 standard to '$code'"
);
$code = strtolower( $code );
$this->assertEquals( $expected, LanguageCode::bcp47( $code ),
"Applying BCP 47 standard to lower case '$code'"
);
$code = strtoupper( $code );
$this->assertEquals( $expected, LanguageCode::bcp47( $code ),
"Applying BCP 47 standard to upper case '$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
# Non-standard and deprecated language codes used by MediaWiki
[ 'als', 'gsw' ],
[ 'bat-smg', 'sgs' ],
[ 'be-x-old', 'be-tarask' ],
[ 'fiu-vro', 'vro' ],
[ 'roa-rup', 'rup' ],
[ 'zh-classical', 'lzh' ],
[ 'zh-min-nan', 'nan' ],
[ 'zh-yue', 'yue' ],
[ 'cbk-zam', 'cbk' ],
[ 'de-formal', 'de-x-formal' ],
[ 'eml', 'egl' ],
[ 'en-rtl', 'en-x-rtl' ],
[ 'es-formal', 'es-x-formal' ],
[ 'hu-formal', 'hu-x-formal' ],
[ 'kk-Arab', 'kk-Arab' ],
[ 'kk-Cyrl', 'kk-Cyrl' ],
[ 'kk-Latn', 'kk-Latn' ],
[ 'map-bms', 'jv-x-bms' ],
[ 'mo', 'ro-Cyrl-MD' ],
[ 'nrm', 'nrf' ],
[ 'nl-informal', 'nl-x-informal' ],
[ 'roa-tara', 'nap-x-tara' ],
[ 'simple', 'en-simple' ],
[ 'sr-ec', 'sr-Cyrl' ],
[ 'sr-el', 'sr-Latn' ],
[ 'zh-cn', 'zh-Hans-CN' ],
[ 'zh-sg', 'zh-Hans-SG' ],
[ 'zh-my', 'zh-Hans-MY' ],
[ 'zh-tw', 'zh-Hant-TW' ],
[ 'zh-hk', 'zh-Hant-HK' ],
[ 'zh-mo', 'zh-Hant-MO' ],
[ 'zh-hans', 'zh-Hans' ],
[ 'zh-hant', 'zh-Hant' ],
];
}
public function testBcp47ToInternal() {
foreach ( $this->getBcp47ToInternal() as $message => [ $expected, $bcp47 ] ) {
$result = LanguageCode::bcp47ToInternal( $bcp47 );
$this->assertEquals( $expected, $result, $message );
}
}
public function testBcp47ToInternalLanguage() {
foreach ( $this->getSupportedLanguageCodes() as [ $internalCode ] ) {
if ( $internalCode === 'egl' ) {
# 'egl' was added as an internal code prematurely; 'eml' hasn't
# been added to the deprecated list yet (T36217) and so only
# 'eml' is a "real" internal code.
$internalCode = 'eml';
}
$lang = $this->createMock( Language::class );
$lang->method( 'getCode' )->willReturn( $internalCode );
$result = LanguageCode::bcp47ToInternal( $lang );
$this->assertEquals( $internalCode, $result );
}
}
public function getSupportedLanguageCodes() {
$lnu = $this->getDummyLanguageNameUtils();
$languages = $lnu->getLanguageNames(
LanguageNameUtils::AUTONYMS, LanguageNameUtils::SUPPORTED
);
foreach ( $languages as $code => $autonym ) {
yield [ $code ];
}
}
public function getBcp47ToInternal() {
foreach ( $this->getSupportedLanguageCodes() as [ $code ] ) {
if ( $code === 'egl' ) {
# 'egl' was added as an internal code prematurely; 'eml' hasn't
# been added to the deprecated list yet (T36217) and so only
# 'eml' is a "real" internal code.
continue;
}
$bcp47 = LanguageCode::bcp47( $code );
yield "$code as string" => [ $code, $bcp47 ];
yield "$code as Bcp47Code object" => [ $code, new Bcp47CodeValue( $bcp47 ) ];
// Verify case-insensitivity: lowercase
$bcp47 = strtolower( $bcp47 );
yield "$code as lowercase string" => [ $code, $bcp47 ];
yield "$code as lowercase Bcp47Code object" => [ $code, new Bcp47CodeValue( $bcp47 ) ];
// Verify case-insensitivity: uppercase
$bcp47 = strtoupper( $bcp47 );
yield "$code as uppercase string" => [ $code, $bcp47 ];
yield "$code as uppercase Bcp47Code object" => [ $code, new Bcp47CodeValue( $bcp47 ) ];
}
}
/**
* @dataProvider provideWellFormedLanguageTags
*/
public function testWellFormedLanguageTag( $code, $message = '' ) {
$this->assertTrue(
LanguageCode::isWellFormedLanguageTag( $code ),
"validating code $code $message"
);
}
/**
* The test cases are based on the tests in the GaBuZoMeu parser
* written by Stéphane Bortzmeyer <bortzmeyer@nic.fr>
* and distributed as free software, under the GNU General Public Licence.
* https://www.bortzmeyer.org/gabuzomeu-parsing-language-tags.html
*/
public static function provideWellFormedLanguageTags() {
return [
[ 'fr', 'two-letter code' ],
[ 'fr-latn', 'two-letter code with lower case script code' ],
[ 'fr-Latn-FR', 'two-letter code with title case script code and uppercase country code' ],
[ 'fr-Latn-419', 'two-letter code with title case script code and region number' ],
[ 'fr-FR', 'two-letter code with uppercase' ],
[ 'ax-TZ', 'Not in the registry, but well-formed' ],
[ 'fr-shadok', 'two-letter code with variant' ],
[ 'fr-y-myext-myext2', 'non-x singleton' ],
[ 'fra-Latn', 'ISO 639 can be 3-letters' ],
[ 'fra', 'three-letter language code' ],
[ 'fra-FX', 'three-letter language code with country code' ],
[ 'i-klingon', 'grandfathered with singleton' ],
[ 'I-kLINgon', 'tags are case-insensitive...' ],
[ 'no-bok', 'grandfathered without singleton' ],
[ 'i-enochian', 'Grandfathered' ],
[ 'x-fr-CH', 'private use' ],
[ 'es-419', 'two-letter code with region number' ],
[ 'en-Latn-GB-boont-r-extended-sequence-x-private', 'weird, but well-formed' ],
[ 'ab-x-abc-x-abc', 'anything goes after x' ],
[ 'ab-x-abc-a-a', 'anything goes after x, including several non-x singletons' ],
[ 'i-default', 'grandfathered' ],
[ 'abcd-Latn', 'Language of 4 chars reserved for future use' ],
[ 'AaBbCcDd-x-y-any-x', 'Language of 5-8 chars, registered' ],
[ 'de-CH-1901', 'with country and year' ],
[ 'en-US-x-twain', 'with country and singleton' ],
[ 'zh-cmn', 'three-letter variant' ],
[ 'zh-cmn-Hant', 'three-letter variant and script' ],
[ 'zh-cmn-Hant-HK', 'three-letter variant, script and country' ],
[ 'xr-p-lze', 'Extension' ],
[ 'en-GB-oed', 'grandfathered language tag, mixed capitalisation' ],
[ 'en-gb-oed', 'grandfathered language tag, all lowercase' ],
];
}
/**
* @dataProvider provideMalformedLanguageTags
*/
public function testMalformedLanguageTag( $code, $message = '' ) {
$this->assertFalse(
LanguageCode::isWellFormedLanguageTag( $code ),
"validating that code $code is a malformed language tag - $message"
);
}
/**
* The test cases are based on the tests in the GaBuZoMeu parser
* written by Stéphane Bortzmeyer <bortzmeyer@nic.fr>
* and distributed as free software, under the GNU General Public Licence.
* https://www.bortzmeyer.org/gabuzomeu-parsing-language-tags.html
*/
public static function provideMalformedLanguageTags() {
return [
[ 'f', 'language too short' ],
[ 'f-Latn', 'language too short with script' ],
[ 'xr-lxs-qut', 'variants too short' ], # extlangS
[ 'fr-Latn-F', 'region too short' ],
[ 'a-value', 'language too short with region' ],
[ 'tlh-a-b-foo', 'valid three-letter with wrong variant' ],
[
'i-notexist',
'grandfathered but not registered: invalid, even if we only test well-formedness'
],
[ 'abcdefghi-012345678', 'numbers too long' ],
[ 'ab-abc-abc-abc-abc', 'invalid extensions' ],
[ 'ab-abcd-abc', 'invalid extensions' ],
[ 'ab-ab-abc', 'invalid extensions' ],
[ 'ab-123-abc', 'invalid extensions' ],
[ 'a-Hant-ZH', 'short language with valid extensions' ],
[ 'a1-Hant-ZH', 'invalid character in language' ],
[ 'ab-abcde-abc', 'invalid extensions' ],
[ 'ab-1abc-abc', 'invalid characters in extensions' ],
[ 'ab-ab-abcd', 'invalid order of extensions' ],
[ 'ab-123-abcd', 'invalid order of extensions' ],
[ 'ab-abcde-abcd', 'invalid extensions' ],
[ 'ab-1abc-abcd', 'invalid characters in extensions' ],
[ 'ab-a-b', 'extensions too short' ],
[ 'ab-a-x', 'extensions too short, even with singleton' ],
[ 'ab--ab', 'two separators' ],
[ 'ab-abc-', 'separator in the end' ],
[ '-ab-abc', 'separator in the beginning' ],
[ 'abcd-efg', 'language too long' ],
[ 'aabbccddE', 'tag too long' ],
[ 'pa_guru', 'A tag with underscore is invalid in strict mode' ],
[ 'de-f', 'subtag too short' ],
[ 'zh-classical', 'internal language code zh-classical is not a well-formed language tag' ],
];
}
public function testLenientLanguageTag() {
$this->assertTrue(
LanguageCode::isWellFormedLanguageTag( 'pa_guru', true ),
'pa_guru is a well-formed language tag in lenient mode'
);
}
}