'Sets up the output file and the netstring receiver that will be
used for receiving data.
@param filename: The name of the file for storing the report.
@type filename: C{str}'

def __init__(self, filename):

    PerformanceTester.__init__(self, filename)
    transport = proto_helpers.StringTransport()
    self.netstringReceiver = test_protocols.TestNetstring()
    self.netstringReceiver.makeConnection(transport)
