#!/usr/bin/python
# glob_test: tests the global expansion character *
#
#   *
#
# Requires ls command to be implemented and prompt plugin to be initialized
#
#   ls, prompt
#

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)

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

# call ls with one wildcard
c.sendline("ls esh.*")

# ensure ls prints the 3 esh files
assert c.expect("esh.c  esh.h  esh.o\r\n") == 0, "Shell did not find expected esh files"

# call ls with two wildcards
c.sendline("ls esh.* esh-grammar.*")

# ensure ls prints the 6 files
assert c.expect("esh.c  esh-grammar.l  esh-grammar.o  esh-grammar.y  esh.h  esh.o\r\n") == 0, \
    "Shell did not find expected esh and esh-grammar files"

# run an exit
c.sendline("exit")

# ensure that no extra characters are output after exiting
assert c.expect_exact("exit\r\n") == 0, "Shell output extraneous characters"


# the test was successful
shellio.success()