<?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     Mike Lively <m@digitalsandwich.com>
 * @copyright  2002-2008 Sebastian Bergmann <sb@sebastian-bergmann.de>
 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @version    SVN: $Id: AbstractDataSet.php 1985 2007-12-26 18:11:55Z sb $
 * @link       http://www.phpunit.de/
 * @since      File available since Release 3.2.0
 */

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

require_once 'PHPUnit/Extensions/Database/DataSet/IDataSet.php';

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

/**
 * Implements the basic functionality of data sets.
 *
 * @category   Testing
 * @package    PHPUnit
 * @author     Mike Lively <m@digitalsandwich.com>
 * @copyright  2008 Mike Lively <m@digitalsandwich.com>
 * @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 3.2.0
 */
abstract class PHPUnit_Extensions_Database_DataSet_AbstractDataSet implements PHPUnit_Extensions_Database_DataSet_IDataSet {

  /**
   * Creates an iterator over the tables in the data set. If $reverse is 
   * true a reverse iterator will be returned.
   *
   * @param bool $reverse
   * @return PHPUnit_Extensions_Database_DataSet_ITableIterator
   */
  protected abstract function createIterator($reverse = false);

  /**
   * Returns an array of table names contained in the dataset.
   *
   * @return array
   */
  public function getTableNames() {
    $tableNames = array();
    
    foreach ($this->getIterator() as $table) {
      /* @var $table PHPUnit_Extensions_Database_DataSet_ITable */
      $tableNames[] = $table->getTableMetaData()->getTableName();
    }
    
    return $tableNames;
  }

  /**
   * Returns a table meta data object for the given table.
   *
   * @param string $tableName
   * @return PHPUnit_Extensions_Database_DataSet_ITableMetaData
   */
  public function getTableMetaData($tableName) {
    return $this->getTable($tableName)->getTableMetaData();
  }

  /**
   * Returns a table object for the given table.
   *
   * @param string $tableName
   * @return PHPUnit_Extensions_Database_DataSet_ITable
   */
  public function getTable($tableName) {
    foreach ($this->getIterator() as $table) {
      /* @var $table PHPUnit_Extensions_Database_DataSet_ITable */
      if ($table->getTableMetaData()->getTableName() == $tableName) {
        return $table;
      }
    }
  }

  /**
   * Returns an iterator for all table objects in the given dataset.
   *
   * @return PHPUnit_Extensions_Database_DataSet_ITableIterator
   */
  public function getIterator() {
    return $this->createIterator();
  }

  /**
   * Returns a reverse iterator for all table objects in the given dataset.
   *
   * @return PHPUnit_Extensions_Database_DataSet_ITableIterator
   */
  public function getReverseIterator() {
    return $this->createIterator(true);
  }

  /**
   * Asserts that the given data set matches this data set.
   *
   * @param PHPUnit_Extensions_Database_DataSet_IDataSet $other
   */
  public function assertEquals(PHPUnit_Extensions_Database_DataSet_IDataSet $other) {
    $thisTableNames = $this->getTableNames();
    $otherTableNames = $other->getTableNames();
    
    sort($thisTableNames);
    sort($otherTableNames);
    
    if ($thisTableNames != $otherTableNames) {
      throw new Exception("Expected following tables: " . implode(', ', $thisTableNames) . "; has columns: " . implode(', ', $otherTableNames));
    }
    
    foreach ($thisTableNames as $tableName) {
      $this->getTable($tableName)->assertEquals($other->getTable($tableName));
    }
    
    return TRUE;
  }

  public function __toString() {
    $iterator = $this->getIterator();
    
    $dataSetString = '';
    foreach ($iterator as $table) {
      $dataSetString .= $table->__toString();
    }
    
    return $dataSetString;
  }
}
?>
