protected function _mockValidator()
    {
        $validator = new Validator();

        return $validator
            ->requirePresence('site_title')
            ->add('site_title', 'length', [
                'rule' => ['minLength', 3],
                'message' => __d('system', "Site's name must be at least 3 characters long."),
            ])
            ->requirePresence('site_email')
            ->add('site_email', 'validEmail', [
                'rule' => 'email',
                'message' => __d('system', 'Invalid e-Mail.'),
            ]);
    }
protected function _mockValidator()
    {
        $validator = new Validator();

        return $validator
            ->requirePresence('site_title')
            ->add('site_title', 'length', [
                'rule' => ['minLength', 3],
                'message' => __d('system', "Site's name must be at least 3 characters long."),
            ])
            ->requirePresence('site_email')
            ->add('site_email', 'validEmail', [
                'rule' => 'email',
                'message' => __d('system', 'Invalid e-Mail.'),
            ]);
    }
protected function _mockValidator ( ) { $ validator = new Validator ( ) ; return $ validator -> requirePresence ( 'site_title' ) -> add ( 'site_title' , 'length' , [ 'rule' => [ 'minLength' , 3 ] , 'message' => __d ( 'system' , "Site's name must be at least 3 characters long." ) , ] ) -> requirePresence ( 'site_email' ) -> add ( 'site_email' , 'validEmail' , [ 'rule' => 'email' , 'message' => __d ( 'system' , 'Invalid e-Mail.' ) , ] ) ; }
Created a mock validator object used when validating options

@return \Cake\Validation\Validator
Created a mock validator object used when validating options