class CommentValidationTest

class CommentValidationTest extends EntityKernelTestBase {
    
    /**
     * Modules to install.
     *
     * @var array
     */
    protected static $modules = [
        'comment',
        'node',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->installSchema('comment', [
            'comment_entity_statistics',
        ]);
    }
    
    /**
     * Tests the comment validation constraints.
     */
    public function testValidation() {
        // Add a user.
        $user = User::create([
            'name' => 'test',
            'status' => TRUE,
        ]);
        $user->save();
        // Add comment type.
        $this->entityTypeManager
            ->getStorage('comment_type')
            ->create([
            'id' => 'comment',
            'label' => 'comment',
            'target_entity_type_id' => 'node',
        ])
            ->save();
        // Add comment field to content.
        $this->entityTypeManager
            ->getStorage('field_storage_config')
            ->create([
            'entity_type' => 'node',
            'field_name' => 'comment',
            'type' => 'comment',
            'settings' => [
                'comment_type' => 'comment',
            ],
        ])
            ->save();
        // Create a page node type.
        $this->entityTypeManager
            ->getStorage('node_type')
            ->create([
            'type' => 'page',
            'name' => 'page',
        ])
            ->save();
        // Add comment field to page content.
        
        /** @var \Drupal\field\FieldConfigInterface $field */
        $field = $this->entityTypeManager
            ->getStorage('field_config')
            ->create([
            'field_name' => 'comment',
            'entity_type' => 'node',
            'bundle' => 'page',
            'label' => 'Comment settings',
        ]);
        $field->save();
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->create([
            'type' => 'page',
            'title' => 'test',
        ]);
        $node->save();
        $comment = $this->entityTypeManager
            ->getStorage('comment')
            ->create([
            'entity_id' => $node->id(),
            'entity_type' => 'node',
            'field_name' => 'comment',
            'comment_body' => $this->randomMachineName(),
        ]);
        $violations = $comment->validate();
        $this->assertCount(0, $violations, 'No violations when validating a default comment.');
        $comment->set('subject', $this->randomString(65));
        $this->assertLengthViolation($comment, 'subject', 64);
        // Make the subject valid.
        $comment->set('subject', $this->randomString());
        $comment->set('name', $this->randomString(61));
        $this->assertLengthViolation($comment, 'name', 60);
        // Validate a name collision between an anonymous comment author name and an
        // existing user account name.
        $comment->set('name', 'test');
        $comment->set('uid', 0);
        $violations = $comment->validate();
        $this->assertCount(1, $violations, "Violation found on author name collision");
        $this->assertEquals("name", $violations[0]->getPropertyPath());
        $this->assertEquals(t('The name you used (%name) belongs to a registered user.', [
            '%name' => 'test',
        ]), $violations[0]->getMessage());
        // Make the name valid.
        $comment->set('name', 'valid unused name');
        $comment->set('mail', 'invalid');
        $violations = $comment->validate();
        $this->assertCount(1, $violations, 'Violation found when email is invalid');
        $this->assertEquals('mail.0.value', $violations[0]->getPropertyPath());
        $this->assertEquals('This value is not a valid email address.', $violations[0]->getMessage());
        $comment->set('mail', NULL);
        $comment->set('homepage', 'http://example.com/' . $this->randomMachineName(237));
        $this->assertLengthViolation($comment, 'homepage', 255);
        $comment->set('homepage', 'invalid');
        $violations = $comment->validate();
        $this->assertCount(1, $violations, 'Violation found when homepage is invalid');
        $this->assertEquals('homepage.0.value', $violations[0]->getPropertyPath());
        // @todo This message should be improved in
        //   https://www.drupal.org/node/2012690.
        $this->assertEquals('This value should be of the correct primitive type.', $violations[0]->getMessage());
        $comment->set('homepage', NULL);
        $comment->set('hostname', $this->randomString(129));
        $this->assertLengthViolation($comment, 'hostname', 128);
        $comment->set('hostname', NULL);
        $comment->set('thread', $this->randomString(256));
        $this->assertLengthViolation($comment, 'thread', 255);
        $comment->set('thread', NULL);
        // Force anonymous users to enter contact details.
        $field->setSetting('anonymous', CommentInterface::ANONYMOUS_MUST_CONTACT);
        $field->save();
        // Reset the node entity.
        \Drupal::entityTypeManager()->getStorage('node')
            ->resetCache([
            $node->id(),
        ]);
        $node = Node::load($node->id());
        // Create a new comment with the new field.
        $comment = $this->entityTypeManager
            ->getStorage('comment')
            ->create([
            'entity_id' => $node->id(),
            'entity_type' => 'node',
            'field_name' => 'comment',
            'comment_body' => $this->randomMachineName(),
            'uid' => 0,
            'name' => '',
        ]);
        $violations = $comment->validate();
        $this->assertCount(1, $violations, 'Violation found when name is required, but empty and UID is anonymous.');
        $this->assertEquals('name', $violations[0]->getPropertyPath());
        $this->assertEquals('You have to specify a valid author.', $violations[0]->getMessage());
        // Test creating a default comment with a given user id works.
        $comment = $this->entityTypeManager
            ->getStorage('comment')
            ->create([
            'entity_id' => $node->id(),
            'entity_type' => 'node',
            'field_name' => 'comment',
            'comment_body' => $this->randomMachineName(),
            'uid' => $user->id(),
        ]);
        $violations = $comment->validate();
        $this->assertCount(0, $violations, 'No violations when validating a default comment with an author.');
        // Test specifying a wrong author name does not work.
        $comment = $this->entityTypeManager
            ->getStorage('comment')
            ->create([
            'entity_id' => $node->id(),
            'entity_type' => 'node',
            'field_name' => 'comment',
            'comment_body' => $this->randomMachineName(),
            'uid' => $user->id(),
            'name' => 'not-test',
        ]);
        $violations = $comment->validate();
        $this->assertCount(1, $violations, 'Violation found when author name and comment author do not match.');
        $this->assertEquals('name', $violations[0]->getPropertyPath());
        $this->assertEquals('The specified author name does not match the comment author.', $violations[0]->getMessage());
    }
    
    /**
     * Verifies that a length violation exists for the given field.
     *
     * @param \Drupal\comment\CommentInterface $comment
     *   The comment object to validate.
     * @param string $field_name
     *   The field that violates the maximum length.
     * @param int $length
     *   Number of characters that was exceeded.
     *
     * @internal
     */
    protected function assertLengthViolation(CommentInterface $comment, string $field_name, int $length) : void {
        $violations = $comment->validate();
        $this->assertCount(1, $violations, "Violation found when {$field_name} is too long.");
        $this->assertEquals("{$field_name}.0.value", $violations[0]->getPropertyPath());
        $field_label = $comment->get($field_name)
            ->getFieldDefinition()
            ->getLabel();
        $this->assertEquals(t('%name: may not be longer than @max characters.', [
            '%name' => $field_label,
            '@max' => $length,
        ]), $violations[0]->getMessage());
    }

}