kahlan\Expectation::_run PHP Метод

    protected function _run()
    {
        if ($this->_passed !== null) {
            return $this;
        }
        $spec = $this->_actual;
        if (!$spec instanceof Specification) {
            $this->_passed = false;
            return $this;
        }
        $closure = function () use($spec) {
            $success = true;
            try {
                $success = $spec->passed();
            } catch (Exception $e) {
            }
            return $success;
        };
        try {
            $this->_spin($closure);
        } catch (TimeoutException $e) {
        }
        $this->_logs = $spec->logs();
        $this->_passed = $spec->passed() && $this->_passed;
        return $this;
    }