<?php
  
  /*
   * This file is part of the Symfony package.
   *
   * (c) Fabien Potencier <fabien@symfony.com>
   *
   * For the full copyright and license information, please view the LICENSE
   * file that was distributed with this source code.
   */
  
  namespace Symfony\Component\Console\Tester;
  
  use Symfony\Component\Console\Application;
  use Symfony\Component\Console\Input\ArrayInput;
  use Symfony\Component\Console\Input\InputInterface;
  use Symfony\Component\Console\Output\OutputInterface;
  use Symfony\Component\Console\Output\StreamOutput;
  
  /**
   * Eases the testing of console applications.
   *
   * When testing an application, don't forget to disable the auto exit flag:
   *
   *     $application = new Application();
   *     $application->setAutoExit(false);
   *
   * @author Fabien Potencier <fabien@symfony.com>
   */
  class ApplicationTester
  {
      private $application;
      private $input;
      private $output;
  
      /**
       * Constructor.
       *
       * @param Application $application An Application instance to test.
       */
      public function __construct(Application $application)
      {
          $this->application = $application;
      }
  
      /**
       * Executes the application.
       *
       * Available options:
       *
       *  * interactive: Sets the input interactive flag
       *  * decorated:   Sets the output decorated flag
       *  * verbosity:   Sets the output verbosity flag
       *
       * @param array $input   An array of arguments and options
       * @param array $options An array of options
       *
       * @return integer The command exit code
       */
      public function run(array $input, $options = array())
      {
          $this->input = new ArrayInput($input);
          if (isset($options['interactive'])) {
              $this->input->setInteractive($options['interactive']);
          }
  
          $this->output = new StreamOutput(fopen('php://memory', 'w', false));
          if (isset($options['decorated'])) {
              $this->output->setDecorated($options['decorated']);
          }
          if (isset($options['verbosity'])) {
              $this->output->setVerbosity($options['verbosity']);
          }
  
          return $this->application->run($this->input, $this->output);
      }
  
      /**
       * Gets the display returned by the last execution of the application.
       *
       * @param Boolean $normalize Whether to normalize end of lines to 
   or not
       *
       * @return string The display
       */
      public function getDisplay($normalize = false)
      {
          rewind($this->output->getStream());
  
          $display = stream_get_contents($this->output->getStream());
  
          if ($normalize) {
              $display = str_replace(PHP_EOL, "
  ", $display);
          }
  
          return $display;
      }
  
      /**
       * Gets the input instance used by the last execution of the application.
       *
       * @return InputInterface The current input instance
       */
      public function getInput()
      {
          return $this->input;
      }
  
      /**
       * Gets the output instance used by the last execution of the application.
       *
       * @return OutputInterface The current output instance
       */
      public function getOutput()
      {
          return $this->output;
      }
  }