Phred/tests/Feature/CompressionMiddlewareTest.php

<?php
declare(strict_types=1);

namespace Phred\Tests\Feature;

use PHPUnit\Framework\TestCase;
use Phred\Http\Kernel;
use Nyholm\Psr7\ServerRequest;

class CompressionMiddlewareTest extends TestCase
{
    protected function tearDown(): void
    {
        putenv('COMPRESSION_ENABLED');
        \Phred\Support\Config::clear();
    }

    public function test_compression_is_applied_when_enabled(): void
    {
        if (!function_exists('gzencode')) {
            $this->markTestSkipped('gzencode not available');
        }

        putenv('COMPRESSION_ENABLED=true');
        $kernel = new Kernel();

        $request = (new ServerRequest('GET', '/_phred/health'))
            ->withHeader('Accept-Encoding', 'gzip');

        $response = $kernel->handle($request);

        $this->assertEquals('gzip', $response->getHeaderLine('Content-Encoding'));
        $this->assertNotEmpty($response->getBody()->getContents());
    }

    public function test_compression_is_not_applied_when_disabled(): void
    {
        putenv('COMPRESSION_ENABLED=false');
        $kernel = new Kernel();

        $request = (new ServerRequest('GET', '/_phred/health'))
            ->withHeader('Accept-Encoding', 'gzip');

        $response = $kernel->handle($request);

        $this->assertFalse($response->hasHeader('Content-Encoding'));
    }
}