int before = t.getInflightRequests();
                if ( before > 0 ) {
                    log.warn("Have existing inflight requests");
                }
                f.exists();
                assertEquals(before, t.getInflightRequests());
            }
        }
    }


    @Test
    // BUG #14

    /**
     *
     * @return number of sessions on this transport
     */
    public int getNumSessions () {
        return this.sessions.size();
    }


    @Override
    public int getInflightRequests () {
        return this.response_map.size();
    }


    @Override
    public boolean isDisconnected () {
        Socket s = this.socket;