class EntityResourceTest

class EntityResourceTest extends JsonapiKernelTestBase {
    
    /**
     * Static UUIDs to use in testing.
     *
     * @var array
     */
    protected static $nodeUuid = [
        1 => '83bc47ad-2c58-45e3-9136-abcdef111111',
        2 => '83bc47ad-2c58-45e3-9136-abcdef222222',
        3 => '83bc47ad-2c58-45e3-9136-abcdef333333',
        4 => '83bc47ad-2c58-45e3-9136-abcdef444444',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'field',
        'jsonapi',
        'serialization',
        'system',
        'user',
    ];
    
    /**
     * The user.
     *
     * @var \Drupal\user\Entity\User
     */
    protected $user;
    
    /**
     * The node.
     *
     * @var \Drupal\node\Entity\Node
     */
    protected $node;
    
    /**
     * The other node.
     *
     * @var \Drupal\node\Entity\Node
     */
    protected $node2;
    
    /**
     * An unpublished node.
     *
     * @var \Drupal\node\Entity\Node
     */
    protected $node3;
    
    /**
     * A node with related nodes.
     *
     * @var \Drupal\node\Entity\Node
     */
    protected $node4;
    
    /**
     * A fake request.
     *
     * @var \Symfony\Component\HttpFoundation\Request
     */
    protected $request;
    
    /**
     * The EntityResource under test.
     *
     * @var \Drupal\jsonapi\Controller\EntityResource
     */
    protected $entityResource;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Add the entity schemas.
        $this->installEntitySchema('node');
        $this->installEntitySchema('user');
        // Add the additional table schemas.
        $this->installSchema('system', [
            'sequences',
        ]);
        $this->installSchema('node', [
            'node_access',
        ]);
        $this->installSchema('user', [
            'users_data',
        ]);
        NodeType::create([
            'type' => 'lorem',
        ])->save();
        $type = NodeType::create([
            'type' => 'article',
        ]);
        $type->save();
        $this->user = User::create([
            'name' => 'user1',
            'mail' => 'user@localhost',
            'status' => 1,
            'roles' => [
                'test_role_one',
                'test_role_two',
            ],
        ]);
        $this->createEntityReferenceField('node', 'article', 'field_relationships', 'Relationship', 'node', 'default', [
            'target_bundles' => [
                'article',
            ],
        ], FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED);
        $this->user
            ->save();
        $this->node = Node::create([
            'title' => 'dummy_title',
            'type' => 'article',
            'uid' => $this->user
                ->id(),
            'uuid' => static::$nodeUuid[1],
        ]);
        $this->node
            ->save();
        $this->node2 = Node::create([
            'type' => 'article',
            'title' => 'Another test node',
            'uid' => $this->user
                ->id(),
            'uuid' => static::$nodeUuid[2],
        ]);
        $this->node2
            ->save();
        $this->node3 = Node::create([
            'type' => 'article',
            'title' => 'Unpublished test node',
            'uid' => $this->user
                ->id(),
            'status' => 0,
            'uuid' => static::$nodeUuid[3],
        ]);
        $this->node3
            ->save();
        $this->node4 = Node::create([
            'type' => 'article',
            'title' => 'Test node with related nodes',
            'uid' => $this->user
                ->id(),
            'field_relationships' => [
                [
                    'target_id' => $this->node
                        ->id(),
                ],
                [
                    'target_id' => $this->node2
                        ->id(),
                ],
                [
                    'target_id' => $this->node3
                        ->id(),
                ],
            ],
            'uuid' => static::$nodeUuid[4],
        ]);
        $this->node4
            ->save();
        // Give anonymous users permission to view user profiles, so that we can
        // verify the cache tags of cached versions of user profile pages.
        array_map(function ($role_id) {
            Role::create([
                'id' => $role_id,
                'permissions' => [
                    'access user profiles',
                    'access content',
                ],
                'label' => $role_id,
            ])->save();
        }, [
            RoleInterface::ANONYMOUS_ID,
            'test_role_one',
            'test_role_two',
        ]);
        $this->entityResource = $this->createEntityResource();
    }
    
    /**
     * Creates an instance of the subject under test.
     *
     * @return \Drupal\jsonapi\Controller\EntityResource
     *   An EntityResource instance.
     */
    protected function createEntityResource() {
        return $this->container
            ->get('jsonapi.entity_resource');
    }
    
    /**
     * @covers ::getCollection
     */
    public function testGetPagedCollection() {
        $request = Request::create('/jsonapi/node/article');
        $request->query = new ParameterBag([
            'sort' => 'nid',
            'page' => [
                'offset' => 1,
                'limit' => 1,
            ],
        ]);
        $entity_resource = $this->createEntityResource();
        // Get the response.
        $resource_type = $this->container
            ->get('jsonapi.resource_type.repository')
            ->get('node', 'article');
        $response = $entity_resource->getCollection($resource_type, $request);
        // Assertions.
        $this->assertInstanceOf(CacheableResourceResponse::class, $response);
        $this->assertInstanceOf(JsonApiDocumentTopLevel::class, $response->getResponseData());
        $this->assertInstanceOf(Data::class, $response->getResponseData()
            ->getData());
        $data = $response->getResponseData()
            ->getData();
        $this->assertCount(1, $data);
        $this->assertEquals($this->node2
            ->uuid(), $data->toArray()[0]
            ->getId());
        $this->assertEqualsCanonicalizing([
            'node:2',
            'node_list',
        ], $response->getCacheableMetadata()
            ->getCacheTags());
    }
    
    /**
     * @covers ::getCollection
     */
    public function testGetEmptyCollection() {
        $request = Request::create('/jsonapi/node/article');
        $request->query = new ParameterBag([
            'filter' => [
                'id' => 'invalid',
            ],
        ]);
        // Get the response.
        $resource_type = new ResourceType('node', 'article', NULL);
        $response = $this->entityResource
            ->getCollection($resource_type, $request);
        // Assertions.
        $this->assertInstanceOf(CacheableResourceResponse::class, $response);
        $this->assertInstanceOf(JsonApiDocumentTopLevel::class, $response->getResponseData());
        $this->assertInstanceOf(Data::class, $response->getResponseData()
            ->getData());
        $this->assertEquals(0, $response->getResponseData()
            ->getData()
            ->count());
        $this->assertEquals([
            'node_list',
        ], $response->getCacheableMetadata()
            ->getCacheTags());
    }

}