<?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     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: RepeatedTest.php 3164 2008-06-08 12:22:29Z sb $
 * @link       http://www.phpunit.de/
 * @since      File available since Release 2.0.0
 */

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

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

/**
 * A Decorator that runs a test repeatedly.
 *
 * @category   Testing
 * @package    PHPUnit
 * @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: 3.3.1
 * @link       http://www.phpunit.de/
 * @since      Class available since Release 2.0.0
 */
class PHPUnit_Extensions_RepeatedTest extends PHPUnit_Extensions_TestDecorator
{
    /**
     * @var    mixed
     */
    protected $filter = FALSE;

    /**
     * @var    array
     */
    protected $groups = array();

    /**
     * @var    array
     */
    protected $excludeGroups = array();

    /**
     * @var    integer
     */
    protected $timesRepeat = 1;

    /**
     * Constructor.
     *
     * @param  PHPUnit_Framework_Test $test
     * @param  integer                $timesRepeat
     * @param  mixed                  $filter
     * @param  array                  $groups
     * @param  array                  $excludeGroups
     * @throws InvalidArgumentException
     */
    public function __construct(PHPUnit_Framework_Test $test, $timesRepeat = 1, $filter = FALSE, array $groups = array(), array $excludeGroups = array())
    {
        parent::__construct($test);

        if (is_integer($timesRepeat) &&
            $timesRepeat >= 0) {
            $this->timesRepeat = $timesRepeat;
        } else {
            throw new InvalidArgumentException(
              'Argument 2 must be a positive integer.'
            );
        }

        $this->filter        = $filter;
        $this->groups        = $groups;
        $this->excludeGroups = $excludeGroups;
    }

    /**
     * Counts the number of test cases that
     * will be run by this test.
     *
     * @return integer
     */
    public function count()
    {
        return $this->timesRepeat * count($this->test);
    }

    /**
     * Runs the decorated test and collects the
     * result in a TestResult.
     *
     * @param  PHPUnit_Framework_TestResult $result
     * @return PHPUnit_Framework_TestResult
     * @throws InvalidArgumentException
     */
    public function run(PHPUnit_Framework_TestResult $result = NULL)
    {
        if ($result === NULL) {
            $result = $this->createResult();
        }

        for ($i = 0; $i < $this->timesRepeat && !$result->shouldStop(); $i++) {
            if ($this->test instanceof PHPUnit_Framework_TestSuite) {
                $this->test->run(
                  $result, $this->filter, $this->groups, $this->excludeGroups
                );
            } else {
                $this->test->run($result);
            }
        }

        return $result;
    }
}
