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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Test
  * @subpackage PHPUnit
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * Redirection constraints
  *
  * @uses       PHPUnit_Framework_Constraint
  * @category   Zend
  * @package    Zend_Test
  * @subpackage PHPUnit
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Test_PHPUnit_Constraint_Redirect41 extends PHPUnit_Framework_Constraint
 {
     /**#@+
      * Assertion type constants
      */
     const ASSERT_REDIRECT       = 'assertRedirect';
     const ASSERT_REDIRECT_TO    = 'assertRedirectTo';
     const ASSERT_REDIRECT_REGEX = 'assertRedirectRegex';
     /**#@-*/
 
     /**
      * Current assertion type
      * @var string
      */
     protected $_assertType      = null;
 
     /**
      * Available assertion types
      * @var array
      */
     protected $_assertTypes     = array(
         self::ASSERT_REDIRECT,
         self::ASSERT_REDIRECT_TO,
         self::ASSERT_REDIRECT_REGEX,
     );
 
     /**
      * Pattern to match against
      * @var string
      */
     protected $_match             = null;
     
     /**
      * What is actual redirect
      */
     protected $_actual            = null;
 
     /**
      * Whether or not assertion is negated
      * @var bool
      */
     protected $_negate            = false;
 
     /**
      * Constructor; setup constraint state
      *
      * @return void
      */
     public function __construct()
     {
     }
 
     /**
      * Indicate negative match
      *
      * @param  bool $flag
      * @return void
      */
     public function setNegate($flag = true)
     {
         $this->_negate = $flag;
     }
 
     /**
      * Evaluate an object to see if it fits the constraints
      *
      * @param  string $other String to examine
      * @param  null|string Assertion type
      * @return bool
      * NOTE:
      * Drastic changes up to PHPUnit 3.5.15 this was:
      *     public function evaluate($other, $assertType = null)
      * In PHPUnit 3.6.0 they changed the interface into this:
      *     public function evaluate($other, $description = '', $returnResult = FALSE)
      * We use the new interface for PHP-strict checking, but emulate the old one
      */
     public function evaluate($other, $assertType = null, $variable = FALSE)
     {
         if (!$other instanceof Zend_Controller_Response_Abstract) {
             // require_once 'Zend/Test/PHPUnit/Constraint/Exception.php';
             throw new Zend_Test_PHPUnit_Constraint_Exception('Redirect constraint assertions require a response object');
         }
 
         if (strstr($assertType, 'Not')) {
             $this->setNegate(true);
             $assertType = str_replace('Not', '', $assertType);
         }
 
         if (!in_array($assertType, $this->_assertTypes)) {
             // require_once 'Zend/Test/PHPUnit/Constraint/Exception.php';
             throw new Zend_Test_PHPUnit_Constraint_Exception(sprintf('Invalid assertion type "%s" provided to %s constraint', $assertType, __CLASS__));
         }
 
         $this->_assertType = $assertType;
 
         $response = $other;
         $argv     = func_get_args();
         $argc     = func_num_args();
 
         switch ($assertType) {
             case self::ASSERT_REDIRECT_TO:
                 if (3 > $argc) {
                     // require_once 'Zend/Test/PHPUnit/Constraint/Exception.php';
                     throw new Zend_Test_PHPUnit_Constraint_Exception('No redirect URL provided against which to match');
                 }
                 $this->_match = $match = $argv[2];
                 return ($this->_negate)
                     ? $this->_notMatch($response, $match)
                     : $this->_match($response, $match);
             case self::ASSERT_REDIRECT_REGEX:
                 if (3 > $argc) {
                     // require_once 'Zend/Test/PHPUnit/Constraint/Exception.php';
                     throw new Zend_Test_PHPUnit_Constraint_Exception('No pattern provided against which to match redirect');
                 }
                 $this->_match = $match = $argv[2];
                 return ($this->_negate)
                     ? $this->_notRegex($response, $match)
                     : $this->_regex($response, $match);
             case self::ASSERT_REDIRECT:
             default:
                 $headers  = $response->sendHeaders();
                 if (isset($headers['location'])) {
                     $redirect = $headers['location'];
                     $redirect = str_replace('Location: ', '', $redirect);
                     $this->_actual = $redirect;
                 }
                 return ($this->_negate) ? !$response->isRedirect() : $response->isRedirect();
         }
     }
 
     /**
      * Report Failure
      *
      * @see    PHPUnit_Framework_Constraint for implementation details
      * @param  mixed $other
      * @param  string $description Additional message to display
      * @param  bool $not
      * @return void
      * @throws PHPUnit_Framework_ExpectationFailedException
      * NOTE:
      * Drastic changes up to PHPUnit 3.5.15 this was:
      *     public function fail($other, $description, $not = false)
      * In PHPUnit 3.6.0 they changed the interface into this:
      *     protected function fail($other, $description, PHPUnit_Framework_ComparisonFailure $comparisonFailure = NULL)
      * We use the new interface for PHP-strict checking
      * NOTE 2:
      * Interface changed again in PHPUnit 4.1.0 because of refactoring to SebastianBergmann\Comparator
      */
     public function fail($other, $description, \SebastianBergmann\Comparator\ComparisonFailure $cannot_be_used = NULL)
     {
         // require_once 'Zend/Test/PHPUnit/Constraint/Exception.php';
         switch ($this->_assertType) {
             case self::ASSERT_REDIRECT_TO:
                 $failure = 'Failed asserting response redirects to "%s"';
                 if ($this->_negate) {
                     $failure = 'Failed asserting response DOES NOT redirect to "%s"';
                 }
                 $failure = sprintf($failure, $this->_match);
                 if (!$this->_negate && $this->_actual) {
                     $failure .= sprintf(PHP_EOL . 'It redirects to "%s".', $this->_actual);
                 }
                 break;
             case self::ASSERT_REDIRECT_REGEX:
                 $failure = 'Failed asserting response redirects to URL MATCHING "%s"';
                 if ($this->_negate) {
                     $failure = 'Failed asserting response DOES NOT redirect to URL MATCHING "%s"';
                 }
                 $failure = sprintf($failure, $this->_match);
                 if ($this->_actual) {
                     $failure .= sprintf(PHP_EOL . 'It redirects to "%s".', $this->_actual);
                 }
                 break;
             case self::ASSERT_REDIRECT:
             default:
                 $failure = 'Failed asserting response is a redirect';
                 if ($this->_negate) {
                     $failure = 'Failed asserting response is NOT a redirect';
                     if ($this->_actual) {
                         $failure .= sprintf(PHP_EOL . 'It redirects to "%s"', $this->_actual);
                     }
                 }
                 break;
         }
 
         if (!empty($description)) {
             $failure = $description . "\n" . $failure;
         }
 
         throw new Zend_Test_PHPUnit_Constraint_Exception($failure);
     }
 
     /**
      * Complete implementation
      *
      * @return string
      */
     public function toString()
     {
         return '';
     }
 
     /**
      * Check to see if content is matched in selected nodes
      *
      * @param  Zend_Controller_Response_HttpTestCase $response
      * @param  string $match Content to match
      * @return bool
      */
     protected function _match($response, $match)
     {
         if (!$response->isRedirect()) {
             return false;
         }
 
         $headers  = $response->sendHeaders();
         $redirect = $headers['location'];
         $redirect = str_replace('Location: ', '', $redirect);
         $this->_actual = $redirect;
 
         return ($redirect == $match);
     }
 
     /**
      * Check to see if content is NOT matched in selected nodes
      *
      * @param  Zend_Controller_Response_HttpTestCase $response
      * @param  string $match
      * @return bool
      */
     protected function _notMatch($response, $match)
     {
         if (!$response->isRedirect()) {
             return true;
         }
 
         $headers  = $response->sendHeaders();
         $redirect = $headers['location'];
         $redirect = str_replace('Location: ', '', $redirect);
         $this->_actual = $redirect;
 
         return ($redirect != $match);
     }
 
     /**
      * Check to see if content is matched by regex in selected nodes
      *
      * @param  Zend_Controller_Response_HttpTestCase $response
      * @param  string $pattern
      * @return bool
      */
     protected function _regex($response, $pattern)
     {
         if (!$response->isRedirect()) {
             return false;
         }
 
         $headers  = $response->sendHeaders();
         $redirect = $headers['location'];
         $redirect = str_replace('Location: ', '', $redirect);
         $this->_actual = $redirect;
 
         return preg_match($pattern, $redirect);
     }
 
     /**
      * Check to see if content is NOT matched by regex in selected nodes
      *
      * @param  Zend_Controller_Response_HttpTestCase $response
      * @param  string $pattern
      * @return bool
      */
     protected function _notRegex($response, $pattern)
     {
         if (!$response->isRedirect()) {
             return true;
         }
 
         $headers  = $response->sendHeaders();
         $redirect = $headers['location'];
         $redirect = str_replace('Location: ', '', $redirect);
         $this->_actual = $redirect;
 
         return !preg_match($pattern, $redirect);
     }
 }