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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\Contracts\Translation\Test;
use PHPUnit\Framework\TestCase;
use Symfony\Contracts\Translation\TranslatorInterface;
use Symfony\Contracts\Translation\TranslatorTrait;
/**
* 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 TranslatorTest extends TestCase
{
private $defaultLocale;
protected function setUp(): void
{
$this->defaultLocale = \Locale::getDefault();
\Locale::setDefault('en');
}
protected function tearDown(): void
{
\Locale::setDefault($this->defaultLocale);
}
public function getTranslator(): TranslatorInterface
{
return new class() implements TranslatorInterface {
use TranslatorTrait;
};
}
/**
* @dataProvider getTransTests
*/
public function testTrans($expected, $id, $parameters)
{
$translator = $this->getTranslator();
$this->assertEquals($expected, $translator->trans($id, $parameters));
}
/**
* @dataProvider getTransChoiceTests
*/
public function testTransChoiceWithExplicitLocale($expected, $id, $number)
{
$translator = $this->getTranslator();
$this->assertEquals($expected, $translator->trans($id, ['%count%' => $number]));
}
/**
* @requires extension intl
*
* @dataProvider getTransChoiceTests
*/
public function testTransChoiceWithDefaultLocale($expected, $id, $number)
{
$translator = $this->getTranslator();
$this->assertEquals($expected, $translator->trans($id, ['%count%' => $number]));
}
/**
* @dataProvider getTransChoiceTests
*/
public function testTransChoiceWithEnUsPosix($expected, $id, $number)
{
$translator = $this->getTranslator();
$translator->setLocale('en_US_POSIX');
$this->assertEquals($expected, $translator->trans($id, ['%count%' => $number]));
}
public function testGetSetLocale()
{
$translator = $this->getTranslator();
$this->assertEquals('en', $translator->getLocale());
}
/**
* @requires extension intl
*/
public function testGetLocaleReturnsDefaultLocaleIfNotSet()
{
$translator = $this->getTranslator();
\Locale::setDefault('pt_BR');
$this->assertEquals('pt_BR', $translator->getLocale());
\Locale::setDefault('en');
$this->assertEquals('en', $translator->getLocale());
}
public function getTransTests()
{
return [
['Symfony is great!', 'Symfony is great!', []],
['Symfony is awesome!', 'Symfony is %what%!', ['%what%' => 'awesome']],
];
}
public function getTransChoiceTests()
{
return [
['There are no apples', '{0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 0],
['There is one apple', '{0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 1],
['There are 10 apples', '{0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 10],
['There are 0 apples', 'There is 1 apple|There are %count% apples', 0],
['There is 1 apple', 'There is 1 apple|There are %count% apples', 1],
['There are 10 apples', 'There is 1 apple|There are %count% apples', 10],
// custom validation messages may be coded with a fixed value
['There are 2 apples', 'There are 2 apples', 2],
];
}
/**
* @dataProvider getInternal
*/
public function testInterval($expected, $number, $interval)
{
$translator = $this->getTranslator();
$this->assertEquals($expected, $translator->trans($interval.' foo|[1,Inf[ bar', ['%count%' => $number]));
}
public function getInternal()
{
return [
['foo', 3, '{1,2, 3 ,4}'],
['bar', 10, '{1,2, 3 ,4}'],
['bar', 3, '[1,2]'],
['foo', 1, '[1,2]'],
['foo', 2, '[1,2]'],
['bar', 1, ']1,2['],
['bar', 2, ']1,2['],
['foo', log(0), '[-Inf,2['],
['foo', -log(0), '[-2,+Inf]'],
];
}
/**
* @dataProvider getChooseTests
*/
public function testChoose($expected, $id, $number, $locale = null)
{
$translator = $this->getTranslator();
$this->assertEquals($expected, $translator->trans($id, ['%count%' => $number], null, $locale));
}
public function testReturnMessageIfExactlyOneStandardRuleIsGiven()
{
$translator = $this->getTranslator();
$this->assertEquals('There are two apples', $translator->trans('There are two apples', ['%count%' => 2]));
}
/**
* @dataProvider getNonMatchingMessages
*/
public function testThrowExceptionIfMatchingMessageCannotBeFound($id, $number)
{
$this->expectException(\InvalidArgumentException::class);
$translator = $this->getTranslator();
$translator->trans($id, ['%count%' => $number]);
}
public function getNonMatchingMessages()
{
return [
['{0} There are no apples|{1} There is one apple', 2],
['{1} There is one apple|]1,Inf] There are %count% apples', 0],
['{1} There is one apple|]2,Inf] There are %count% apples', 2],
['{0} There are no apples|There is one apple', 2],
];
}
public function getChooseTests()
{
return [
['There are no apples', '{0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 0],
['There are no apples', '{0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 0],
['There are no apples', '{0}There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 0],
['There is one apple', '{0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 1],
['There are 10 apples', '{0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 10],
['There are 10 apples', '{0} There are no apples|{1} There is one apple|]1,Inf]There are %count% apples', 10],
['There are 10 apples', '{0} There are no apples|{1} There is one apple|]1,Inf] There are %count% apples', 10],
['There are 0 apples', 'There is one apple|There are %count% apples', 0],
['There is one apple', 'There is one apple|There are %count% apples', 1],
['There are 10 apples', 'There is one apple|There are %count% apples', 10],
['There are 0 apples', 'one: There is one apple|more: There are %count% apples', 0],
['There is one apple', 'one: There is one apple|more: There are %count% apples', 1],
['There are 10 apples', 'one: There is one apple|more: There are %count% apples', 10],
['There are no apples', '{0} There are no apples|one: There is one apple|more: There are %count% apples', 0],
['There is one apple', '{0} There are no apples|one: There is one apple|more: There are %count% apples', 1],
['There are 10 apples', '{0} There are no apples|one: There is one apple|more: There are %count% apples', 10],
['', '{0}|{1} There is one apple|]1,Inf] There are %count% apples', 0],
['', '{0} There are no apples|{1}|]1,Inf] There are %count% apples', 1],
// Indexed only tests which are Gettext PoFile* compatible strings.
['There are 0 apples', 'There is one apple|There are %count% apples', 0],
['There is one apple', 'There is one apple|There are %count% apples', 1],
['There are 2 apples', 'There is one apple|There are %count% apples', 2],
// Tests for float numbers
['There is almost one apple', '{0} There are no apples|]0,1[ There is almost one apple|{1} There is one apple|[1,Inf] There is more than one apple', 0.7],
['There is one apple', '{0} There are no apples|]0,1[There are %count% apples|{1} There is one apple|[1,Inf] There is more than one apple', 1],
['There is more than one apple', '{0} There are no apples|]0,1[There are %count% apples|{1} There is one apple|[1,Inf] There is more than one apple', 1.7],
['There are no apples', '{0} There are no apples|]0,1[There are %count% apples|{1} There is one apple|[1,Inf] There is more than one apple', 0],
['There are no apples', '{0} There are no apples|]0,1[There are %count% apples|{1} There is one apple|[1,Inf] There is more than one apple', 0.0],
['There are no apples', '{0.0} There are no apples|]0,1[There are %count% apples|{1} There is one apple|[1,Inf] There is more than one apple', 0],
// Test texts with new-lines
// with double-quotes and \n in id & double-quotes and actual newlines in text
["This is a text with a\n new-line in it. Selector = 0.", '{0}This is a text with a
new-line in it. Selector = 0.|{1}This is a text with a
new-line in it. Selector = 1.|[1,Inf]This is a text with a
new-line in it. Selector > 1.', 0],
// with double-quotes and \n in id and single-quotes and actual newlines in text
["This is a text with a\n new-line in it. Selector = 1.", '{0}This is a text with a
new-line in it. Selector = 0.|{1}This is a text with a
new-line in it. Selector = 1.|[1,Inf]This is a text with a
new-line in it. Selector > 1.', 1],
["This is a text with a\n new-line in it. Selector > 1.", '{0}This is a text with a
new-line in it. Selector = 0.|{1}This is a text with a
new-line in it. Selector = 1.|[1,Inf]This is a text with a
new-line in it. Selector > 1.', 5],
// with double-quotes and id split accros lines
['This is a text with a
new-line in it. Selector = 1.', '{0}This is a text with a
new-line in it. Selector = 0.|{1}This is a text with a
new-line in it. Selector = 1.|[1,Inf]This is a text with a
new-line in it. Selector > 1.', 1],
// with single-quotes and id split accros lines
['This is a text with a
new-line in it. Selector > 1.', '{0}This is a text with a
new-line in it. Selector = 0.|{1}This is a text with a
new-line in it. Selector = 1.|[1,Inf]This is a text with a
new-line in it. Selector > 1.', 5],
// with single-quotes and \n in text
['This is a text with a\nnew-line in it. Selector = 0.', '{0}This is a text with a\nnew-line in it. Selector = 0.|{1}This is a text with a\nnew-line in it. Selector = 1.|[1,Inf]This is a text with a\nnew-line in it. Selector > 1.', 0],
// with double-quotes and id split accros lines
["This is a text with a\nnew-line in it. Selector = 1.", "{0}This is a text with a\nnew-line in it. Selector = 0.|{1}This is a text with a\nnew-line in it. Selector = 1.|[1,Inf]This is a text with a\nnew-line in it. Selector > 1.", 1],
// escape pipe
['This is a text with | in it. Selector = 0.', '{0}This is a text with || in it. Selector = 0.|{1}This is a text with || in it. Selector = 1.', 0],
// Empty plural set (2 plural forms) from a .PO file
['', '|', 1],
// Empty plural set (3 plural forms) from a .PO file
['', '||', 1],
// Floating values
['1.5 liters', '%count% liter|%count% liters', 1.5],
['1.5 litre', '%count% litre|%count% litres', 1.5, 'fr'],
// Negative values
['-1 degree', '%count% degree|%count% degrees', -1],
['-1 degré', '%count% degré|%count% degrés', -1],
['-1.5 degrees', '%count% degree|%count% degrees', -1.5],
['-1.5 degré', '%count% degré|%count% degrés', -1.5, 'fr'],
['-2 degrees', '%count% degree|%count% degrees', -2],
['-2 degrés', '%count% degré|%count% degrés', -2],
];
}
/**
* @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.
*/
public function successLangcodes(): array
{
return [
['1', ['ay', 'bo', 'cgg', 'dz', 'id', 'ja', 'jbo', 'ka', 'kk', 'km', 'ko', 'ky']],
['2', ['nl', 'fr', 'en', 'de', 'de_GE', 'hy', 'hy_AM', 'en_US_POSIX']],
['3', ['be', 'bs', 'cs', 'hr']],
['4', ['cy', 'mt', 'sl']],
['6', ['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(): array
{
return [
['1', ['fa']],
['2', ['jbo']],
['3', ['cbs']],
['4', ['gd', 'kw']],
['5', ['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
*/
protected function validateMatrix(string $nplural, array $matrix, bool $expectSuccess = true)
{
foreach ($matrix as $langCode => $data) {
$indexes = array_flip($data);
if ($expectSuccess) {
$this->assertCount($nplural, $indexes, "Langcode '$langCode' has '$nplural' plural forms.");
} else {
$this->assertNotEquals((int) $nplural, \count($indexes), "Langcode '$langCode' has '$nplural' plural forms.");
}
}
}
protected function generateTestData($langCodes)
{
$translator = new class() {
use TranslatorTrait {
getPluralizationRule as public;
}
};
$matrix = [];
foreach ($langCodes as $langCode) {
for ($count = 0; $count < 200; ++$count) {
$plural = $translator->getPluralizationRule($count, $langCode);
$matrix[$langCode][$count] = $plural;
}
}
return $matrix;
}
}
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