The base scenario class I created for helping me with scenarios in Laravel

BaseScenario.php

<?php

class BaseScenario
{
    /**
     * This controller is told what to do by our scenario
     */
    public $controller = null;

    /**
     * [__construct description]
     * @param [type] $input [description]
     */
    public function __construct(Input $input = null)
    {
        $this->input = $input ?: App::make('Input');
    }

    /**
     * Create a new validator instance for us
     * 
     * @param  [type] $input    [description]
     * @param  [type] $rules    [description]
     * @param  [type] $messages [description]
     * @return [type]           [description]
     */
    protected function validator($input, $rules, $messages = [])
    {
        return Validator::make($input, $rules, $messages);
    }

    /**
     * Calls protected/public methods on a class for us
     * 
     * @param  [type] $class  [description]
     * @param  [type] $method [description]
     * @return [type]         [description]
     */
    protected function invoke($methodName, $args)
    {   
        $obj = $this->controller;
        $method = new ReflectionMethod(get_class($obj), $methodName);
        $method->setAccessible(true);
        return $method->invokeArgs($obj, $args);
    }

}