ResourceFetcherTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\media\Unit;

use Drupal\Component\Serialization\Json;
use Drupal\Core\Cache\NullBackend;
use Drupal\media\OEmbed\ResourceException;
use Drupal\media\OEmbed\ResourceFetcher;
use Drupal\Tests\UnitTestCase;
use GuzzleHttp\Client;
use GuzzleHttp\Handler\MockHandler;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Psr7\Response;
use GuzzleHttp\RequestOptions;

/**
 * @group media
 *
 * @coversDefaultClass \Drupal\media\OEmbed\ResourceFetcher
 */
class ResourceFetcherTest extends UnitTestCase {
    
    /**
     * Tests that resources are fetched with a hard-coded timeout.
     */
    public function testFetchTimeout() : void {
        $url = 'https://example.com/oembed?url=resource';
        $headers = [
            'Content-Type' => [
                'text/javascript',
            ],
        ];
        $body = Json::encode([
            'version' => '1.0',
            'type' => 'video',
            'html' => 'test',
        ]);
        $response = new Response(200, $headers, $body);
        $client = $this->prophesize(Client::class);
        $client->request('GET', $url, [
            RequestOptions::TIMEOUT => 5,
        ])
            ->shouldBeCalled()
            ->willReturn($response);
        $fetcher = new ResourceFetcher($client->reveal(), $this->createMock('\\Drupal\\media\\OEmbed\\ProviderRepositoryInterface'), new NullBackend('default'));
        $fetcher->fetchResource($url);
    }
    
    /**
     * Tests how the resource fetcher handles unknown Content-Type headers.
     *
     * @covers ::fetchResource
     */
    public function testUnknownContentTypeHeader() : void {
        $headers = [
            'Content-Type' => [
                'text/html',
            ],
        ];
        $body = Json::encode([
            'version' => '1.0',
            'type' => 'video',
            'html' => 'test',
        ]);
        $valid_response = new Response(200, $headers, $body);
        // Strip off the trailing '}' to produce a response that will cause a JSON
        // parse error.
        $invalid_response = new Response(200, $headers, rtrim($body, '}'));
        // A response that is valid JSON, but does not decode to an array, should
        // produce an exception as well.
        $non_array_response = new Response(200, $headers, '"Valid JSON, but not an array..."');
        $mock_handler = new MockHandler([
            $valid_response,
            $invalid_response,
            $non_array_response,
        ]);
        $client = new Client([
            'handler' => HandlerStack::create($mock_handler),
        ]);
        $providers = $this->createMock('\\Drupal\\media\\OEmbed\\ProviderRepositoryInterface');
        $fetcher = new ResourceFetcher($client, $providers, new NullBackend('default'));
        
        /** @var \Drupal\media\OEmbed\Resource $resource */
        $resource = $fetcher->fetchResource('valid');
        // The resource should have been successfully decoded as JSON.
        $this->assertSame('video', $resource->getType());
        $this->assertSame('test', $resource->getHtml());
        // Invalid JSON should throw an exception.
        try {
            $fetcher->fetchResource('invalid');
            $this->fail('Expected a ResourceException to be thrown for invalid JSON.');
        } catch (ResourceException $e) {
            $this->assertSame('Error decoding oEmbed resource: Syntax error', $e->getMessage());
        }
        // Valid JSON that does not produce an array should also throw an exception.
        $this->expectException(ResourceException::class);
        $this->expectExceptionMessage('The oEmbed resource could not be decoded.');
        $fetcher->fetchResource('non_array');
    }

}