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<?php
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/**
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* PHPUnit
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*
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* Copyright (c) 2002-2010, Sebastian Bergmann <sb@sebastian-bergmann.de>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* * Neither the name of Sebastian Bergmann nor the names of his
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* @category Testing
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* @package PHPUnit
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* @author Sebastian Bergmann <sb@sebastian-bergmann.de>
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* @copyright 2002-2010 Sebastian Bergmann <sb@sebastian-bergmann.de>
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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* @link http://www.phpunit.de/
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* @since File available since Release 3.0.0
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*/
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require_once 'PHPUnit/Framework.php';
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require_once 'PHPUnit/Util/Filter.php';
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require_once 'PHPUnit/Util/Type.php';
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PHPUnit_Util_Filter::addFileToFilter(__FILE__, 'PHPUNIT');
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/**
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* Logical XOR.
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*
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* @category Testing
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* @package PHPUnit
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* @author Sebastian Bergmann <sb@sebastian-bergmann.de>
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* @copyright 2002-2010 Sebastian Bergmann <sb@sebastian-bergmann.de>
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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* @version Release: 3.4.15
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* @link http://www.phpunit.de/
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* @since Class available since Release 3.0.0
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*/
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class PHPUnit_Framework_Constraint_Xor extends PHPUnit_Framework_Constraint
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{
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/**
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* @var PHPUnit_Framework_Constraint[]
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*/
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protected $constraints = array();
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/**
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* @param PHPUnit_Framework_Constraint[] $constraints
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*/
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public function setConstraints(array $constraints)
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{
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$this->constraints = array();
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foreach($constraints as $key => $constraint) {
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if (!($constraint instanceof PHPUnit_Framework_Constraint)) {
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$constraint = new PHPUnit_Framework_Constraint_IsEqual(
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$constraint
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);
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}
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$this->constraints[] = $constraint;
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}
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}
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/**
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* Evaluates the constraint for parameter $other. Returns TRUE if the
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* constraint is met, FALSE otherwise.
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*
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* @param mixed $other Value or object to evaluate.
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* @return bool
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*/
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public function evaluate($other)
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{
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$result = FALSE;
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foreach($this->constraints as $constraint) {
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if ($constraint->evaluate($other)) {
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if ( $result )
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{
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return FALSE;
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}
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$result = TRUE;
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}
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}
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return $result;
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}
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/**
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* Returns a string representation of the constraint.
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*
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* @return string
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*/
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public function toString()
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{
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$text = '';
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foreach($this->constraints as $key => $constraint) {
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if ($key > 0) {
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$text .= ' xor ';
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}
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$text .= $constraint->toString();
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}
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return $text;
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}
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/**
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* Counts the number of constraint elements.
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*
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* @return integer
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* @since Method available since Release 3.4.0
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*/
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public function count()
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{
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$count = 1;
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foreach ($this->constraints as $constraint) {
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$count += count($constraint);
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}
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return $count;
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}
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}
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?>
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