#!/usr/bin/python
#
# Block header comment
#
#
import sys, imp, atexit
sys.path.append("/home/courses/cs3214/software/pexpect-dpty/");
import pexpect, shellio, signal, time, os, re, proc_check

#Ensure the shell process is terminated
def force_shell_termination(shell_process):
    c.close(force=True)

#pulling in the regular expression and other definitions
definitions_scriptname = sys.argv[1]
def_module = imp.load_source('', definitions_scriptname)
logfile = None
if hasattr(def_module, 'logfile'):
    logfile = def_module.logfile

#spawn an instance of the shell
c = pexpect.spawn(def_module.shell, drainpty=True, logfile=logfile, args=['-p', 'plugins/'])
atexit.register(force_shell_termination, shell_process=c)

# set timeout for all following 'expect*' calls to 2 seconds
c.timeout = 2


c.sendline("getenv TESTENVVAR")
assert c.expect("Environment Variable 'TESTENVVAR' is not defined.") == 0, "Shell did not print expected prompt"

c.sendline("setenv TESTENVVAR TESTVALUE")
c.sendline("getenv TESTENVVAR")
assert c.expect("Environment Variable 'TESTENVVAR' = 'TESTVALUE'.") == 0, "Shell did not print expected prompt"
c.sendline("exit")
shellio.success()