class CommentResourceTestBase

abstract class CommentResourceTestBase extends EntityResourceTestBase {
    use CommentTestTrait;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'comment',
        'entity_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected static $entityTypeId = 'comment';
    
    /**
     * {@inheritdoc}
     */
    protected static $patchProtectedFieldNames = [
        'status' => "The 'administer comments' permission is required.",
        'uid' => "The 'administer comments' permission is required.",
        'pid' => NULL,
        'entity_id' => NULL,
        'name' => "The 'administer comments' permission is required.",
        'homepage' => "The 'administer comments' permission is required.",
        'created' => "The 'administer comments' permission is required.",
        'changed' => NULL,
        'thread' => NULL,
        'entity_type' => NULL,
        'field_name' => NULL,
    ];
    
    /**
     * @var \Drupal\comment\CommentInterface
     */
    protected $entity;
    
    /**
     * Marks some tests as skipped because XML cannot be deserialized.
     *
     * @before
     */
    public function commentResourceTestBaseSkipTests() : void {
        if (static::$format === 'xml' && in_array($this->name(), [
            'testPostDxWithoutCriticalBaseFields',
            'testPostSkipCommentApproval',
        ], TRUE)) {
            $this->markTestSkipped('Deserialization of the XML format is not supported.');
        }
    }
    
    /**
     * {@inheritdoc}
     */
    protected function setUpAuthorization($method) {
        switch ($method) {
            case 'GET':
                $this->grantPermissionsToTestedRole([
                    'access comments',
                    'view test entity',
                ]);
                break;
            case 'POST':
                $this->grantPermissionsToTestedRole([
                    'post comments',
                ]);
                break;
            case 'PATCH':
                // Anonymous users are not ever allowed to edit their own comments. To
                // be able to test PATCHing comments as the anonymous user, the more
                // permissive 'administer comments' permission must be granted.
                // @see \Drupal\comment\CommentAccessControlHandler::checkAccess
                if (static::$auth) {
                    $this->grantPermissionsToTestedRole([
                        'edit own comments',
                    ]);
                }
                else {
                    $this->grantPermissionsToTestedRole([
                        'administer comments',
                    ]);
                }
                break;
            case 'DELETE':
                $this->grantPermissionsToTestedRole([
                    'administer comments',
                ]);
                break;
        }
    }
    
    /**
     * {@inheritdoc}
     */
    protected function createEntity() {
        // Create a "bar" bundle for the "entity_test" entity type and create.
        $bundle = 'bar';
        entity_test_create_bundle($bundle, NULL, 'entity_test');
        // Create a comment field on this bundle.
        $this->addDefaultCommentField('entity_test', 'bar', 'comment');
        // Create a "Camelids" test entity that the comment will be assigned to.
        $commented_entity = EntityTest::create([
            'name' => 'Camelids',
            'type' => 'bar',
            'comment' => CommentItemInterface::OPEN,
        ]);
        $commented_entity->save();
        // Create a "Llama" comment.
        $comment = Comment::create([
            'comment_body' => [
                'value' => 'The name "llama" was adopted by European settlers from native Peruvians.',
                'format' => 'plain_text',
            ],
            'entity_id' => $commented_entity->id(),
            'entity_type' => 'entity_test',
            'field_name' => 'comment',
        ]);
        $comment->setSubject('Llama')
            ->setOwnerId(static::$auth ? $this->account
            ->id() : 0)
            ->setPublished()
            ->setCreatedTime(123456789)
            ->setChangedTime(123456789);
        $comment->save();
        return $comment;
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getExpectedNormalizedEntity() {
        $author = User::load($this->entity
            ->getOwnerId());
        return [
            'cid' => [
                [
                    'value' => 1,
                ],
            ],
            'uuid' => [
                [
                    'value' => $this->entity
                        ->uuid(),
                ],
            ],
            'langcode' => [
                [
                    'value' => 'en',
                ],
            ],
            'comment_type' => [
                [
                    'target_id' => 'comment',
                    'target_type' => 'comment_type',
                    'target_uuid' => CommentType::load('comment')->uuid(),
                ],
            ],
            'subject' => [
                [
                    'value' => 'Llama',
                ],
            ],
            'status' => [
                [
                    'value' => TRUE,
                ],
            ],
            'created' => [
                [
                    'value' => (new \DateTime())->setTimestamp(123456789)
                        ->setTimezone(new \DateTimeZone('UTC'))
                        ->format(\DateTime::RFC3339),
                    'format' => \DateTime::RFC3339,
                ],
            ],
            'changed' => [
                [
                    'value' => (new \DateTime())->setTimestamp((int) $this->entity
                        ->getChangedTime())
                        ->setTimezone(new \DateTimeZone('UTC'))
                        ->format(\DateTime::RFC3339),
                    'format' => \DateTime::RFC3339,
                ],
            ],
            'default_langcode' => [
                [
                    'value' => TRUE,
                ],
            ],
            'uid' => [
                [
                    'target_id' => (int) $author->id(),
                    'target_type' => 'user',
                    'target_uuid' => $author->uuid(),
                    'url' => base_path() . 'user/' . $author->id(),
                ],
            ],
            'pid' => [],
            'entity_type' => [
                [
                    'value' => 'entity_test',
                ],
            ],
            'entity_id' => [
                [
                    'target_id' => 1,
                    'target_type' => 'entity_test',
                    'target_uuid' => EntityTest::load(1)->uuid(),
                    'url' => base_path() . 'entity_test/1',
                ],
            ],
            'field_name' => [
                [
                    'value' => 'comment',
                ],
            ],
            'name' => [],
            'homepage' => [],
            'thread' => [
                [
                    'value' => '01/',
                ],
            ],
            'comment_body' => [
                [
                    'value' => 'The name "llama" was adopted by European settlers from native Peruvians.',
                    'format' => 'plain_text',
                    'processed' => '<p>The name &quot;llama&quot; was adopted by European settlers from native Peruvians.</p>' . "\n",
                ],
            ],
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getNormalizedPostEntity() {
        return [
            'comment_type' => [
                [
                    'target_id' => 'comment',
                ],
            ],
            'entity_type' => [
                [
                    'value' => 'entity_test',
                ],
            ],
            'entity_id' => [
                [
                    'target_id' => (int) EntityTest::load(1)->id(),
                ],
            ],
            'field_name' => [
                [
                    'value' => 'comment',
                ],
            ],
            'subject' => [
                [
                    'value' => 'Drama llama',
                ],
            ],
            'comment_body' => [
                [
                    'value' => 'Llamas are awesome.',
                    'format' => 'plain_text',
                ],
            ],
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getNormalizedPatchEntity() {
        return array_diff_key($this->getNormalizedPostEntity(), [
            'entity_type' => TRUE,
            'entity_id' => TRUE,
            'field_name' => TRUE,
        ]);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getExpectedCacheTags() {
        return Cache::mergeTags(parent::getExpectedCacheTags(), [
            'config:filter.format.plain_text',
        ]);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getExpectedCacheContexts() {
        return Cache::mergeContexts([
            'languages:language_interface',
            'theme',
        ], parent::getExpectedCacheContexts());
    }
    
    /**
     * Tests POSTing a comment without critical base fields.
     *
     * Tests with the most minimal normalization possible: the one returned by
     * ::getNormalizedPostEntity().
     *
     * But Comment entities have some very special edge cases:
     * - base fields that are not marked as required in
     *   \Drupal\comment\Entity\Comment::baseFieldDefinitions() yet in fact are
     *   required.
     * - base fields that are marked as required, but yet can still result in
     *   validation errors other than "missing required field".
     */
    public function testPostDxWithoutCriticalBaseFields() : void {
        $this->initAuthentication();
        $this->provisionEntityResource();
        $this->setUpAuthorization('POST');
        $url = $this->getEntityResourcePostUrl()
            ->setOption('query', [
            '_format' => static::$format,
        ]);
        $request_options = [];
        $request_options[RequestOptions::HEADERS]['Accept'] = static::$mimeType;
        $request_options[RequestOptions::HEADERS]['Content-Type'] = static::$mimeType;
        $request_options = array_merge_recursive($request_options, $this->getAuthenticationRequestOptions('POST'));
        // DX: 422 when missing 'entity_type' field.
        $request_options[RequestOptions::BODY] = $this->serializer
            ->encode(array_diff_key($this->getNormalizedPostEntity(), [
            'entity_type' => TRUE,
        ]), static::$format);
        $response = $this->request('POST', $url, $request_options);
        $this->assertResourceErrorResponse(422, "Unprocessable Entity: validation failed.\nentity_type: This value should not be null.\n", $response);
        // DX: 422 when missing 'entity_id' field.
        $request_options[RequestOptions::BODY] = $this->serializer
            ->encode(array_diff_key($this->getNormalizedPostEntity(), [
            'entity_id' => TRUE,
        ]), static::$format);
        $response = $this->request('POST', $url, $request_options);
        $this->assertResourceErrorResponse(422, "Unprocessable Entity: validation failed.\nentity_id: This value should not be null.\n", $response);
        // DX: 422 when missing 'field_name' field.
        $request_options[RequestOptions::BODY] = $this->serializer
            ->encode(array_diff_key($this->getNormalizedPostEntity(), [
            'field_name' => TRUE,
        ]), static::$format);
        $response = $this->request('POST', $url, $request_options);
        $this->assertResourceErrorResponse(422, "Unprocessable Entity: validation failed.\nfield_name: This value should not be null.\n", $response);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getExpectedUnauthorizedAccessMessage($method) {
        switch ($method) {
            case 'GET':
                return "The 'access comments' permission is required and the comment must be published.";
            case 'POST':
                return "The 'post comments' permission is required.";
            case 'PATCH':
                return "The 'edit own comments' permission is required, the user must be the comment author, and the comment must be published.";
            case 'DELETE':
            default:
                // \Drupal\comment\CommentAccessControlHandler::checkAccess() does not
                // specify a reason for not allowing a comment to be deleted.
                return '';
        }
    }
    
    /**
     * Tests POSTing a comment with and without 'skip comment approval'.
     */
    public function testPostSkipCommentApproval() : void {
        $this->initAuthentication();
        $this->provisionEntityResource();
        $this->setUpAuthorization('POST');
        // Create request.
        $request_options = [];
        $request_options[RequestOptions::HEADERS]['Accept'] = static::$mimeType;
        $request_options[RequestOptions::HEADERS]['Content-Type'] = static::$mimeType;
        $request_options = array_merge_recursive($request_options, $this->getAuthenticationRequestOptions('POST'));
        $request_options[RequestOptions::BODY] = $this->serializer
            ->encode($this->getNormalizedPostEntity(), static::$format);
        $url = $this->getEntityResourcePostUrl()
            ->setOption('query', [
            '_format' => static::$format,
        ]);
        // Status should be FALSE when posting as anonymous.
        $response = $this->request('POST', $url, $request_options);
        $unserialized = $this->serializer
            ->deserialize((string) $response->getBody(), get_class($this->entity), static::$format);
        $this->assertResourceResponse(201, FALSE, $response);
        $this->assertFalse($unserialized->isPublished());
        // Make sure the role save below properly invalidates cache tags.
        $this->refreshVariables();
        // Grant anonymous permission to skip comment approval.
        $this->grantPermissionsToTestedRole([
            'skip comment approval',
        ]);
        // Status should be TRUE when posting as anonymous and skip comment approval.
        $response = $this->request('POST', $url, $request_options);
        $unserialized = $this->serializer
            ->deserialize((string) $response->getBody(), get_class($this->entity), static::$format);
        $this->assertResourceResponse(201, FALSE, $response);
        $this->assertTrue($unserialized->isPublished());
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getExpectedUnauthorizedEntityAccessCacheability($is_authenticated) {
        // @see \Drupal\comment\CommentAccessControlHandler::checkAccess()
        return parent::getExpectedUnauthorizedEntityAccessCacheability($is_authenticated)->addCacheTags([
            'comment:1',
        ]);
    }

}