szurubooru/tests/Services/NetworkingServiceTest.php

<?php
namespace Szurubooru\Tests\Services;
use Szurubooru\Helpers\HttpHelper;
use Szurubooru\Services\NetworkingService;
use Szurubooru\Tests\AbstractTestCase;

final class NetworkingServiceTest extends AbstractTestCase
{
    public function testDownload()
    {
        $httpHelper = $this->mock(HttpHelper::class);
        $networkingService = new NetworkingService($httpHelper);
        $content = $networkingService->download('http://modernseoul.files.wordpress.com/2012/04/korean-alphabet-chart-modern-seoul.jpg');
        $this->assertGreaterThan(0, strlen($content));
    }
}