PhpSpec\Wrapper\Subject::makeSureWeHaveASubject PHP Method

    private function makeSureWeHaveASubject()
    {
        if (null === $this->subject && $this->wrappedObject->getClassName()) {
            $instantiator = new Instantiator();
            return $instantiator->instantiate($this->wrappedObject->getClassName());
        }
        return $this->subject;
    }