<?php
/**
 * PHPUnit
 *
 * Copyright (c) 2002-2008, Sebastian Bergmann <sb@sebastian-bergmann.de>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *
 *   * Neither the name of Sebastian Bergmann nor the names of his
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @category   Testing
 * @package    PHPUnit
 * @author     Jan Borsodi <jb@ez.no>
 * @author     Sebastian Bergmann <sb@sebastian-bergmann.de>
 * @copyright  2002-2008 Sebastian Bergmann <sb@sebastian-bergmann.de>
 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @version    SVN: $Id: Array.php 1985 2007-12-26 18:11:55Z sb $
 * @link       http://www.phpunit.de/
 * @since      File available since Release 3.0.0
 */

require_once 'PHPUnit/Framework.php';
require_once 'PHPUnit/Util/Filter.php';

PHPUnit_Util_Filter::addFileToFilter(__FILE__, 'PHPUNIT');

/**
 * Thrown when an assertion for array equality failed.
 *
 * @category   Testing
 * @package    PHPUnit
 * @author     Jan Borsodi <jb@ez.no>
 * @author     Sebastian Bergmann <sb@sebastian-bergmann.de>
 * @copyright  2002-2008 Sebastian Bergmann <sb@sebastian-bergmann.de>
 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @version    Release: 3.2.9
 * @link       http://www.phpunit.de/
 * @since      Class available since Release 3.0.0
 */
class PHPUnit_Framework_ComparisonFailure_Array extends PHPUnit_Framework_ComparisonFailure {

  /**
   * Returns a string describing the difference between the expected and the
   * actual array.
   *
   * @note Diffing is only done for one level.
   */
  public function toString() {
    if ($this->hasDiff()) {
      return $this->diff(print_r($this->expected, TRUE), print_r($this->actual, TRUE));
    }
    
    $expectedOnly = array();
    $actualOnly = array();
    $diff = '';
    
    foreach ($this->expected as $expectedKey => $expectedValue) {
      if (! array_key_exists($expectedKey, $this->actual)) {
        $expectedOnly[] = $expectedKey;
        continue;
      }
      
      if ($expectedValue === $this->actual[$expectedKey]) continue;
      
      $diffObject = PHPUnit_Framework_ComparisonFailure::diffIdentical($expectedValue, $this->actual[$expectedKey], $this->message . "array key <{$expectedKey}>: ");
      $diff .= $diffObject->toString() . "\n";
    }
    
    foreach ($this->actual as $actualKey => $actualValue) {
      if (! array_key_exists($actualKey, $this->expected)) {
        $actualOnly[] = $actualKey;
        continue;
      }
    }
    
    foreach ($expectedOnly as $expectedKey) {
      $expectedValue = $this->expected[$expectedKey];
      $diff .= "array key <{$expectedKey}>: only in expected <{$expectedValue}>\n";
    }
    
    foreach ($actualOnly as $actualKey) {
      $actualValue = $this->actual[$actualKey];
      $diff .= "array key <{$actualKey}>: only in actual <{$actualValue}>\n";
    }
    
    return $diff;
  }
}
?>
