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<?php
/**
* PHPUnit
*
* Copyright (c) 2001-2013, 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 Framework_Constraint
* @author Sebastian Bergmann <sebastian@phpunit.de>
* @author Bernhard Schussek <bschussek@2bepublished.at>
* @copyright 2001-2013 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 3.0.0
*/
/**
* Logical NOT.
*
* @package PHPUnit
* @subpackage Framework_Constraint
* @author Sebastian Bergmann <sebastian@phpunit.de>
* @author Bernhard Schussek <bschussek@2bepublished.at>
* @copyright 2001-2013 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 3.0.0
*/
class PHPUnit_Framework_Constraint_Not extends PHPUnit_Framework_Constraint
{
/**
* @var PHPUnit_Framework_Constraint
*/
protected $constraint;
/**
* @param PHPUnit_Framework_Constraint $constraint
*/
public function __construct($constraint)
{
if (!($constraint instanceof PHPUnit_Framework_Constraint)) {
$constraint = new PHPUnit_Framework_Constraint_IsEqual($constraint);
}
$this->constraint = $constraint;
}
/**
* @param string $string
* @return string
*/
public static function negate($string)
{
return str_replace(
array(
'contains ',
'exists',
'has ',
'is ',
'are ',
'matches ',
'starts with ',
'ends with ',
'reference ',
'not not '
),
array(
'does not contain ',
'does not exist',
'does not have ',
'is not ',
'are not ',
'does not match ',
'starts not with ',
'ends not with ',
'don\'t reference ',
'not '
),
$string
);
}
/**
* Evaluates the constraint for parameter $other
*
* If $returnResult is set to FALSE (the default), an exception is thrown
* in case of a failure. NULL is returned otherwise.
*
* If $returnResult is TRUE, the result of the evaluation is returned as
* a boolean value instead: TRUE in case of success, FALSE in case of a
* failure.
*
* @param mixed $other Value or object to evaluate.
* @param string $description Additional information about the test
* @param bool $returnResult Whether to return a result or throw an exception
* @return mixed
* @throws PHPUnit_Framework_ExpectationFailedException
*/
public function evaluate($other, $description = '', $returnResult = FALSE)
{
$success = !$this->constraint->evaluate($other, $description, TRUE);
if ($returnResult) {
return $success;
}
if (!$success) {
$this->fail($other, $description);
}
}
/**
* Returns the description of the failure
*
* The beginning of failure messages is "Failed asserting that" in most
* cases. This method should return the second part of that sentence.
*
* @param mixed $other Evaluated value or object.
* @return string
*/
protected function failureDescription($other)
{
switch (get_class($this->constraint)) {
case 'PHPUnit_Framework_Constraint_And':
case 'PHPUnit_Framework_Constraint_Not':
case 'PHPUnit_Framework_Constraint_Or': {
return 'not( ' . $this->constraint->failureDescription($other) . ' )';
}
break;
default: {
return self::negate(
$this->constraint->failureDescription($other)
);
}
}
}
/**
* Returns a string representation of the constraint.
*
* @return string
*/
public function toString()
{
switch (get_class($this->constraint)) {
case 'PHPUnit_Framework_Constraint_And':
case 'PHPUnit_Framework_Constraint_Not':
case 'PHPUnit_Framework_Constraint_Or': {
return 'not( ' . $this->constraint->toString() . ' )';
}
break;
default: {
return self::negate(
$this->constraint->toString()
);
}
}
}
/**
* Counts the number of constraint elements.
*
* @return integer
* @since Method available since Release 3.4.0
*/
public function count()
{
return count($this->constraint);
}
}
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