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<?php
/*
* This file is part of PhpSpec, A php toolset to drive emergent
* design by specification.
*
* (c) Marcello Duarte <marcello.duarte@gmail.com>
* (c) Konstantin Kudryashov <ever.zet@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PhpSpec\Matcher;
use PhpSpec\Formatter\Presenter\PresenterInterface;
use PhpSpec\Exception\Example\FailureException;
use PhpSpec\Exception\Fracture\MethodNotFoundException;
class ObjectStateMatcher implements MatcherInterface
{
/**
* @var string
*/
private static $regex = '/(be|have)(.+)/';
/**
* @var PresenterInterface
*/
private $presenter;
/**
* @param PresenterInterface $presenter
*/
public function __construct(PresenterInterface $presenter)
{
$this->presenter = $presenter;
}
/**
* @param string $name
* @param mixed $subject
* @param array $arguments
*
* @return bool
*/
public function supports($name, $subject, array $arguments)
{
return is_object($subject) && !is_callable($subject)
&& (0 === strpos($name, 'be') || 0 === strpos($name, 'have'))
;
}
/**
* @param string $name
* @param mixed $subject
* @param array $arguments
*
* @throws \PhpSpec\Exception\Example\FailureException
* @throws \PhpSpec\Exception\Fracture\MethodNotFoundException
*/
public function positiveMatch($name, $subject, array $arguments)
{
preg_match(self::$regex, $name, $matches);
$method = ('be' === $matches[1] ? 'is' : 'has').ucfirst($matches[2]);
$callable = array($subject, $method);
if (!method_exists($subject, $method)) {
throw new MethodNotFoundException(sprintf(
'Method %s not found.',
$this->presenter->presentValue($callable)
), $subject, $method, $arguments);
}
if (true !== $result = call_user_func_array($callable, $arguments)) {
throw $this->getFailureExceptionFor($callable, true, $result);
}
}
/**
* @param string $name
* @param mixed $subject
* @param array $arguments
*
* @throws \PhpSpec\Exception\Example\FailureException
* @throws \PhpSpec\Exception\Fracture\MethodNotFoundException
*/
public function negativeMatch($name, $subject, array $arguments)
{
preg_match(self::$regex, $name, $matches);
$method = ('be' === $matches[1] ? 'is' : 'has').ucfirst($matches[2]);
$callable = array($subject, $method);
if (!method_exists($subject, $method)) {
throw new MethodNotFoundException(sprintf(
'Method %s not found.',
$this->presenter->presentValue($callable)
), $subject, $method, $arguments);
}
if (false !== $result = call_user_func_array($callable, $arguments)) {
throw $this->getFailureExceptionFor($callable, false, $result);
}
}
/**
* @return int
*/
public function getPriority()
{
return 50;
}
/**
* @param callable $callable
* @param Boolean $expectedBool
* @param Boolean $result
*
* @return FailureException
*/
private function getFailureExceptionFor($callable, $expectedBool, $result)
{
return new FailureException(sprintf(
"Expected %s to return %s, but got %s.",
$this->presenter->presentValue($callable),
$this->presenter->presentValue($expectedBool),
$this->presenter->presentValue($result)
));
}
}
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