# time_test: Tests the time function
# 
# Tests the built in time function which 
# will display the local time and date. 
#

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 5 seconds
c.timeout = 5

# Tests temperatures with a valid numbers
c.sendline("time")
(wday, month, day, hour, minute, second, year) = shellio.parse_regular_expression(c, "The current date and time is (\S+) (\S+) (\d+) (\d+):(\d+):(\d+) (\d+)")
c.sendline("sleep 10")
c.sendline("time")
(wday2, month2, day2, hour2, minute2, second2, year2) = shellio.parse_regular_expression(c, "The current date and time is (\S+) (\S+) (\d+)     (\d+):(\d+):(\d+) (\d+)")
assert wday == wday2 and month == month2 and day == day2 and year == year2, "The day changed between calls"
assert second != second2, "the time did not change"

# end the shell program by sending it an exit string
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()