knowledge_base/src/tests/Unit/Markdown/MediaUrlResolverTest.php

<?php

namespace Tests\Unit\Markdown;

use App\Markdown\MediaUrlResolver;
use PHPUnit\Framework\Attributes\DataProvider;
use Tests\TestCase;

class MediaUrlResolverTest extends TestCase
{
    private MediaUrlResolver $resolver;

    protected function setUp(): void
    {
        parent::setUp();
        $this->resolver = new MediaUrlResolver();
    }

    #[DataProvider('nonMediaUrls')]
    public function test_returns_null_for_non_media_urls(string $url): void
    {
        $this->assertNull($this->resolver->resolve($url));
    }

    public static function nonMediaUrls(): array
    {
        return [
            'normal image' => ['/photo.jpg'],
            'svg' => ['/icon.svg'],
            'png' => ['/avatar.png'],
            'no extension' => ['/foo'],
            'empty string' => [''],
            'javascript scheme' => ['javascript:alert(1)'],
            'host-only' => ['http://'],
            'youtu.be lookalike host' => ['https://example.com/youtu.be-fake/abc'],
        ];
    }

    #[DataProvider('videoUrls')]
    public function test_video_urls_produce_video_tag(string $url): void
    {
        $html = $this->resolver->resolve($url);
        $this->assertNotNull($html);
        $this->assertStringStartsWith('<video', $html);
        $this->assertStringContainsString('controls', $html);
        $this->assertStringContainsString('class="kb-video"', $html);
    }

    public static function videoUrls(): array
    {
        return [
            'mp4' => ['/demo.mp4'],
            'webm' => ['/demo.webm'],
            'ogv' => ['/demo.ogv'],
            'mov' => ['/demo.mov'],
            'm4v' => ['/demo.m4v'],
            'uppercase extension' => ['/demo.MP4'],
            'with query string' => ['https://example.com/path/demo.mp4?token=abc'],
            'absolute http' => ['https://example.com/demo.mp4'],
        ];
    }

    public function test_video_url_is_html_escaped(): void
    {
        $html = $this->resolver->resolve('/path/with"quote.mp4');
        $this->assertNotNull($html);
        $this->assertStringNotContainsString('"quote.mp4"', $html);
        $this->assertStringContainsString('&quot;', $html);
    }

    #[DataProvider('audioUrls')]
    public function test_audio_urls_produce_audio_tag(string $url): void
    {
        $html = $this->resolver->resolve($url);
        $this->assertNotNull($html);
        $this->assertStringStartsWith('<audio', $html);
        $this->assertStringContainsString('controls', $html);
        $this->assertStringContainsString('class="kb-audio"', $html);
    }

    public static function audioUrls(): array
    {
        return [
            'mp3' => ['/clip.mp3'],
            'wav' => ['/clip.wav'],
            'ogg' => ['/clip.ogg'],
            'm4a' => ['/clip.m4a'],
        ];
    }
}