#! /usr/bin/env python

"""Trace-comparison-type regression test for the Network Simulation Cradle."""

import os

import shutil

import sys

import tracediff

import platform

def run(verbose, generate, refDirName):

    """Run a Network Simulation Cradle test involving two TCP streams."""

    if not tracediff.env['ENABLE_NSC']:

        print >>sys.stderr, "Skipping tcp-nsc-lfn: NSC not available."

        raise NotImplementedError

    testName = "tcp-nsc-lfn"

    arguments = ["--ns3::OnOffApplication::DataRate=40000", "--runtime=20"]

    platform_bits = platform.architecture()[0]

    if platform_bits == "64bit":

        traceDirName = testName + "_64bit.ref"

    elif platform_bits == "32bit":

        traceDirName = testName + "_32bit.ref"

    else:

        # Something unexpected. How should we signal an error here? Rasing a

        # string might not be the best idea?

        raise "Unknown architecture, not 64 or 32 bit?"

    return tracediff.run_test(verbose, generate, refDirName,

        testName, arguments=arguments, refTestName=traceDirName)