Helper\Test::chained_request PHP Method

    private function chained_request($request_method)
    {
        if ($request_method === 'POST') {
            $this->server('request_method', $request_method, array(), true);
        } else {
            $this->server('request_method', $request_method);
        }
        \PHPUnit_Framework_Assert::assertEquals($request_method, $this->curl->responseHeaders['X-REQUEST-METHOD']);
    }