#!/usr/bin/python
#
# LBStoKG_test: tests the LBStoKG command
# 
# Test the LBStoKG command which, when run with an int > 0
# will print the corresponding kilogram conversion of the 
# weight specified in pounds.
#

import sys, imp, atexit
sys.path.append("/home/courses/cs3214/software/pexpect-dpty/");
# sys.path.appent("~/");
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 5 seconds
c.timeout = 5

#test LBStoKG with a valid number
c.sendline("pythm 3 4")
assert c.expect_exact("the hypotenuse is : 5.000000") == 0, "correct value not computed"
c.sendline("pythm 9 12")
assert c.expect_exact("the hypotenuse is : 15.000000")  == 0, "correct value not seen"

# the test was successful
shellio.success()