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June 18, 2024 09:14
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Mocking Guzzle to handle client requests in a test
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| <?php | |
| namespace Drupal\Tests\external_entities\Kernel; | |
| use Drupal\Core\DependencyInjection\ContainerBuilder; | |
| use Drupal\KernelTests\KernelTestBase; | |
| use GuzzleHttp\Promise\FulfilledPromise; | |
| use GuzzleHttp\Psr7\Response; | |
| use Psr\Http\Message\RequestInterface; | |
| /** | |
| * Exanple of mocking a Guzzle response in a test class. | |
| */ | |
| class KernelTestWithMockedClientRequestsExampleTest extends KernelTestBase { | |
| /** | |
| * The modules to enable. | |
| * | |
| * @var array | |
| */ | |
| protected static $modules = [ | |
| 'system', | |
| 'user', | |
| ]; | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function register(ContainerBuilder $container) { | |
| parent::register($container); | |
| // Register this test class as an HTTP client middleware. | |
| $container | |
| ->register('mocked_external_entity_source', static::class) | |
| ->addTag('http_client_middleware'); | |
| } | |
| /** | |
| * Guzzle client middleware callback. | |
| */ | |
| public function __invoke() { | |
| return function (callable $handler) { | |
| return function (RequestInterface $request, array $options) use ($handler) { | |
| $json = json_encode([ | |
| 'some data', | |
| ]); | |
| $response = new Response(200, [], $json); | |
| return new FulfilledPromise($response); | |
| }; | |
| }; | |
| } | |
| /** | |
| * Test method. | |
| */ | |
| public function testExternalRequest(): void { | |
| $client = $this->container->get('http_client'); | |
| $response = $client->request('GET', 'http://example.com'); | |
| $body = $response->getBody()->getContents(); | |
| dump($body); | |
| } | |
| } |
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