#!/usr/bin/python
#
# F2M test: Tests the F2M builtin plugin
# 
# This test will test a few input cases if the input
# is >0 then the input is valid however if the input
# is <0 then a error will be printed and this test will
# cover it. Also if there is no unit for feet specified
# there is error handling that will catch it

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

#test F2M with a valid number for feet
c.sendline("F2M 5")
assert c.expect_exact("1.52 meters") == 0, "correct output for meters not printed by command"

c.sendline("F2M 1")
assert c.expect_exact("0.30 meters") == 0, "correct output for meters not printed by command"

#Test F2M with invalid outputs
c.sendline("F2M -1")

#Check to see if error message was outputted
assert c.expect_exact("Error: negative value inputted") == 0, "wrong statement for -1 value"

c.sendline("F2M")

#Check to see if error message was outputted
assert c.expect_exact("Error: specify feet value") == 0, "error no feet input value"

# end the shell program by sending it an end-of-file character
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()