<?php
/**
 * PHPUnit
 *
 * Copyright (c) 2001-2014, Sebastian Bergmann <sebastian@phpunit.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.
 *
 * @package    PHPUnit
 * @subpackage Runner
 * @author     Sebastian Bergmann <sebastian@phpunit.de>
 * @copyright  2001-2014 Sebastian Bergmann <sebastian@phpunit.de>
 * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
 * @link       http://www.phpunit.de/
 * @since      File available since Release 4.0.0
 */

/**
 * @package    PHPUnit
 * @subpackage Runner
 * @author     Sebastian Bergmann <sebastian@phpunit.de>
 * @copyright  2001-2014 Sebastian Bergmann <sebastian@phpunit.de>
 * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
 * @link       http://www.phpunit.de/
 * @since      Class available since Release 4.0.0
 */
class PHPUnit_Runner_Filter_Test extends RecursiveFilterIterator
{
    /**
     * @var string
     */
    protected $filter = null;

    /**
     * @var integer
     */
    protected $filterMin;
    /**
     * @var integer
     */
    protected $filterMax;

    /**
     * @param RecursiveIterator $iterator
     * @param string            $filter
     */
    public function __construct(RecursiveIterator $iterator, $filter)
    {
        parent::__construct($iterator);
        $this->setFilter($filter);
    }

    /**
     * @param string $filter
     */
    protected function setFilter($filter)
    {
        if ($filter[0] != substr($filter, -1) ||
            preg_match('/^[a-zA-Z0-9_]/', $filter)) {

            // Handles:
            //  * testAssertEqualsSucceeds#4
            //  * testAssertEqualsSucceeds#4-8
            if (preg_match('/^(.*?)#(\d+)(?:-(\d+))?$/', $filter, $matches)) {
                if (isset($matches[3]) && $matches[2] < $matches[3]) {
                    $filter = sprintf(
                      '%s.*with data set #(\d+)$',
                      $matches[1]
                    );

                    $this->filterMin = $matches[2];
                    $this->filterMax = $matches[3];
                } else {
                    $filter = sprintf(
                      '%s.*with data set #%s$',
                      $matches[1],
                      $matches[2]
                    );
                }
            }

            // Handles:
            //  * testDetermineJsonError@JSON_ERROR_NONE
            //  * testDetermineJsonError@JSON.*
            elseif (preg_match('/^(.*?)@(.+)$/', $filter, $matches)) {
                $filter = sprintf(
                  '%s.*with data set "%s"$',
                  $matches[1],
                  $matches[2]
                );
            }

            // Escape delimiters in regular expression. Do NOT use preg_quote,
            // to keep magic characters.
            $filter = sprintf('/%s/', str_replace(
              '/', '\\/', $filter
            ));
        }

        $this->filter = $filter;
    }

    /**
     * @return boolean
     */
    public function accept()
    {
        $test = $this->getInnerIterator()->current();

        if ($test instanceof PHPUnit_Framework_TestSuite) {
            return true;
        }

        $tmp = PHPUnit_Util_Test::describe($test, false);

        if ($tmp[0] != '') {
            $name = join('::', $tmp);
        } else {
            $name = $tmp[1];
        }

        $accepted = preg_match($this->filter, $name, $matches);

        if ($accepted && isset($this->filterMax)) {
            $set = end($matches);
            $accepted = $set >= $this->filterMin && $set <= $this->filterMax;
        }

        return $accepted;
    }
}