#!/usr/bin/python
#
# Simple Integer Calculator Plugin Test
# 
# by Estelle Susanto and Nicholas Hu
#
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]
plugin_dir = sys.argv[2]
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 + plugin_dir, drainpty=True, logfile=logfile)

atexit.register(force_shell_termination, shell_process=c)

c.timeout = 2
 
# c.sendline("calculator 1 2 add")
# assert c.expect("Answer: 3.00\r\n") == 0, "Calculator did not print the expected output" 

# c.sendline("calculator 6 2 sub")
# assert c.expect("Answer: 4.00\r\n") == 0, "Calculator did not print the expected output"

c.sendline("calculator 3 4 mul")
assert c.expect("Answer: 12.00\r\n") == 0, "Calculator did not print the expected output"

c.sendline("calculator 9 3 div")
assert c.expect("Answer: 3.00\r\n") == 0, "Calculator did not print the expected output"

c.sendline("calculator 9 4 div")
assert c.expect("Answer: 2.25\r\n") == 0, "Calculator did not print the expected output"

c.sendline("exit")
assert c.expect_exact("exit\r\n") == 0, "Shell output extraneous characters"
shellio.success()