twig-a11y-rules/tests/Rules/Structure/LangAttributeRuleTest.php at 5ff21909f87ef64fb13de470eae34b4a7cc19783 · PhilDaiguille/twig-a11y-rules · GitHub

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<?php

declare(strict_types=1);

namespace TwigA11y\Tests\Rules\Structure;

use PHPUnit\Framework\Attributes\CoversNothing;
use PHPUnit\Framework\Attributes\DataProvider;
use TwigA11y\Rules\Structure\LangAttributeRule;
use TwigCsFixer\Test\AbstractRuleTestCase;

#[CoversNothing]
/** @internal */
final class LangAttributeRuleTest extends AbstractRuleTestCase
{
    /**
     * @param array<null|string> $expectedErrors
     */
    #[DataProvider('provideFixtures')]
    public function testRule(string $fixture, array $expectedErrors): void
    {
        $this->checkRule(new LangAttributeRule(), $expectedErrors, $fixture);
    }

    /**
     * @return iterable<string, array{0:string,1:array<null|string>}>
     */
    public static function provideFixtures(): iterable
    {
        yield 'html with lang' => [
            __DIR__.'/Fixtures/valid/html_with_lang.html.twig',
            [],
        ];

        yield 'html without lang' => [
            __DIR__.'/Fixtures/invalid/html_no_lang.html.twig',
            ['LangAttribute.LangAttribute.MissingLang:2:1' => 'The <html> element should have a lang attribute.'],
        ];

        // Partial fragments (no <html>) should not trigger the rule
        yield 'partial fragment no html' => [__DIR__.'/Fixtures/valid/partial_no_html.html.twig', []];
    }
}