/**
* Add the default matcher drivers.
*/
public function addDefaultMatcherDrivers()
{
$this->addMatcherDriver(HamcrestMatcherDriver::instance());
$this->addMatcherDriver(CounterpartMatcherDriver::instance());
$this->addMatcherDriver(PhpunitMatcherDriver::instance());
$this->addMatcherDriver(SimpletestMatcherDriver::instance());
$this->addMatcherDriver(PhakeMatcherDriver::instance());
$this->addMatcherDriver(ProphecyMatcherDriver::instance());
$this->addMatcherDriver(MockeryMatcherDriver::instance());
}