PluralFormKeyTest.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Language\Tests\ComponentTranslation;
 
use ILIAS\Language\ComponentTranslation\PluralFormKey;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\TestCase;
 
class PluralFormKeyTest extends TestCase
{
    public function testOfFormatsTheIdentifierAndForm(): void
    {
        $this->assertSame('poll_population [0]', PluralFormKey::of('poll_population', 0));
        $this->assertSame('poll_population [1]', PluralFormKey::of('poll_population', 1));
    }
 
    #[DataProvider('roundTripKeys')]
    public function testOfAndParseRoundTrip(string $identifier, int $form): void
    {
        $this->assertSame([$identifier, $form], PluralFormKey::parse(PluralFormKey::of($identifier, $form)));
    }
 
    public static function roundTripKeys(): array
    {
        return [
            'simple' => ['poll_population', 0],
            'two digit form' => ['poll_population', 10],
            'identifier containing brackets' => ['weird [legacy]', 1],
            'identifier containing a space' => ['poll population', 1],
        ];
    }
 
    #[DataProvider('nonFormKeys')]
    public function testParseReturnsNullForAnythingNotShapedLikeOf(string $key): void
    {
        $this->assertNull(PluralFormKey::parse($key));
    }
 
    public static function nonFormKeys(): array
    {
        return [
            'plain identifier' => ['poll_population'],
            'no space before bracket' => ['poll_population[0]'],
            'no closing bracket' => ['poll_population [0'],
            'non-numeric form' => ['poll_population [x]'],
            'leading zero form' => ['poll_population [01]'],
            'negative form' => ['poll_population [-1]'],
            'empty identifier' => [' [0]'],
            'empty string' => [''],
            'trailing characters after bracket' => ['poll_population [0] extra'],
        ];
    }
 
    public function testParseAcceptsTheHighestSupportedTwoDigitForm(): void
    {
        $this->assertSame(['id', 99], PluralFormKey::parse('id [99]'));
    }
 
    public function testParseRejectsAThreeDigitForm(): void
    {
        $this->assertNull(PluralFormKey::parse('id [100]'));
    }
}