public function testSessionSetShouldThrowAnExceptionWithAnInvalidSessionId()
 {
     $downloadDir = '/path/to/download-dir';
     $peerLimitGlobal = 42;
     $invalidSessionId = uniqid();
     $sessionArgs = ['download-dir' => $downloadDir, 'peer-limit-global' => $peerLimitGlobal];
     $requestBody = sprintf('{"method":"session-set","arguments":{"download-dir":"%s","peer-limit-global":%d}}', $downloadDir, $peerLimitGlobal);
     $this->sendRequest($requestBody, $invalidSessionId)->andThrow($this->generateCSRFException());
     try {
         $this->rpcClient->sessionSet($invalidSessionId, $sessionArgs);
     } catch (CSRFException $e) {
         $this->assertSame($this->sessionId, $e->getSessionId());
     }
 }