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Editing: AnswerCollection.php

<?php
/* 
 * Phake - Mocking Framework
 * 
 * Copyright (c) 2010, Mike Lively <mike.lively@sellingsource.com>
 * 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 Mike Lively 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    Phake
 * @author     Mike Lively <m@digitalsandwich.com>
 * @copyright  2010 Mike Lively <m@digitalsandwich.com>
 * @license      BSD License
 * @link       
 */

/**
 * Allows iteration over a series of answers. Simply calling getAnswer() will result in the appropriate
 * answer being returned. You do not need to manage the iteration manually.
 *
 * If there are no answers left to return, the last answer is returned again.
 */
class Phake_Stubber_AnswerCollection implements Phake_Stubber_IAnswerContainer
{
    /**
     * @var array
     */
    private $answers;

/**
     * Adds the passed answer to a new answer collection.
     *
     * @param Phake_Stubber_IAnswer $answer
     */
    public function __construct(Phake_Stubber_IAnswer $answer)
    {
        $this->answers = array($answer);
    }

/**
     * Adds a new answer to the end of the collection.
     *
     * @param Phake_Stubber_IAnswer $answer
     */
    public function addAnswer(Phake_Stubber_IAnswer $answer)
    {
        $this->answers[] = $answer;
    }

/**
     * Returns the next answer in the collection.
     *
     * @return Phake_Stubber_IAnswer
     */
    public function getAnswer()
    {
        $answer = current($this->answers);

if ($answer === false) {
            $answer = end($this->answers);
        }

next($this->answers);

return $answer;
    }
}

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