RequestHandlerTest.php

<?php

namespace Drupal\Tests\rest\Kernel;

use Drupal\Component\Serialization\Json;
use Drupal\Core\Routing\RouteMatch;
use Drupal\KernelTests\KernelTestBase;
use Drupal\rest\Plugin\ResourceBase;
use Drupal\rest\RequestHandler;
use Drupal\rest\ResourceResponse;
use Drupal\rest\RestResourceConfigInterface;
use Prophecy\Argument;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Route;
use Symfony\Component\Serializer\Encoder\DecoderInterface;
use Symfony\Component\Serializer\SerializerInterface;

/**
 * Test REST RequestHandler controller logic.
 *
 * @group rest
 * @coversDefaultClass \Drupal\rest\RequestHandler
 */
class RequestHandlerTest extends KernelTestBase {
    
    /**
     * @var \Drupal\rest\RequestHandler
     */
    protected $requestHandler;
    protected static $modules = [
        'serialization',
        'rest',
    ];
    
    /**
     * The entity storage.
     *
     * @var \Prophecy\Prophecy\ObjectProphecy
     */
    protected $entityStorage;
    
    /**
     * {@inheritdoc}
     */
    public function setUp() : void {
        parent::setUp();
        $serializer = $this->prophesize(SerializerInterface::class);
        $serializer->willImplement(DecoderInterface::class);
        $serializer->decode(Json::encode([
            'this is an array',
        ]), 'json', Argument::type('array'))
            ->willReturn([
            'this is an array',
        ]);
        $this->requestHandler = new RequestHandler($serializer->reveal());
    }
    
    /**
     * @covers ::handle
     */
    public function testHandle() {
        $request = new Request([], [], [], [], [], [
            'CONTENT_TYPE' => 'application/json',
        ], Json::encode([
            'this is an array',
        ]));
        $route_match = new RouteMatch('test', (new Route('/rest/test', [
            '_rest_resource_config' => 'restplugin',
            'example' => '',
        ], [
            '_format' => 'json',
        ]))->setMethods([
            'GET',
        ]));
        $resource = $this->prophesize(StubRequestHandlerResourcePlugin::class);
        $resource->get('', $request)
            ->shouldBeCalled();
        $resource->getPluginDefinition()
            ->willReturn([])
            ->shouldBeCalled();
        // Setup the configuration.
        $config = $this->prophesize(RestResourceConfigInterface::class);
        $config->getResourcePlugin()
            ->willReturn($resource->reveal());
        $config->getCacheContexts()
            ->willReturn([]);
        $config->getCacheTags()
            ->willReturn([]);
        $config->getCacheMaxAge()
            ->willReturn(12);
        // Response returns NULL this time because response from plugin is not
        // a ResourceResponse so it is passed through directly.
        $response = $this->requestHandler
            ->handle($route_match, $request, $config->reveal());
        $this->assertEquals(NULL, $response);
        // Response will return a ResourceResponse this time.
        $response = new ResourceResponse([]);
        $resource->get(NULL, $request)
            ->willReturn($response);
        $handler_response = $this->requestHandler
            ->handle($route_match, $request, $config->reveal());
        $this->assertEquals($response, $handler_response);
        // We will call the patch method this time.
        $route_match = new RouteMatch('test', (new Route('/rest/test', [
            '_rest_resource_config' => 'restplugin',
            'example_original' => '',
        ], [
            '_content_type_format' => 'json',
        ]))->setMethods([
            'PATCH',
        ]));
        $request->setMethod('PATCH');
        $response = new ResourceResponse([]);
        $resource->patch([
            'this is an array',
        ], $request)
            ->shouldBeCalledTimes(1)
            ->willReturn($response);
        $handler_response = $this->requestHandler
            ->handle($route_match, $request, $config->reveal());
        $this->assertEquals($response, $handler_response);
    }

}

/**
 * Stub class where we can prophesize methods.
 */
class StubRequestHandlerResourcePlugin extends ResourceBase {
    public function get($example = NULL, Request $request = NULL) {
    }
    public function post() {
    }
    public function patch($data, Request $request) {
    }
    public function delete() {
    }

}