tools/tesh/tesh.py

   1 #! @PYTHON_EXECUTABLE@
   2 # -*- coding: utf-8 -*-
   3 """
   4
   5 tesh -- testing shell
   6 ========================
   7
   8 Copyright (c) 2012-2021. The SimGrid Team. All rights reserved.
   9
  10 This program is free software; you can redistribute it and/or modify it
  11 under the terms of the license (GNU LGPL) which comes with this package.
  12
  13 #TODO: child of child of child that printfs. Does it work?
  14 #TODO: a child dies after its parent. What happen?
  15
  16 #TODO: regular expression in output
  17 #ex: >> Time taken: [0-9]+s
  18 #TODO: linked regular expression in output
  19 #ex:
  20 # >> Bytes sent: ([0-9]+)
  21 # >> Bytes recv: \1
  22 # then, even better:
  23 # ! expect (\1 > 500)
  24
  25 """
  26
  27 import sys
  28 import os
  29 import shlex
  30 import re
  31 import difflib
  32 import signal
  33 import argparse
  34 import time
  35
  36 if sys.version_info[0] == 3:
  37     import subprocess
  38     import _thread
  39 else:
  40     raise "This program is expected to run with Python3 only"
  41
  42 ##############
  43 #
  44 # Utilities
  45 #
  46 #
  47
  48 def isWindows():
  49     return sys.platform.startswith('win')
  50
  51 # Singleton metaclass that works in Python 2 & 3
  52 # http://stackoverflow.com/questions/6760685/creating-a-singleton-in-python
  53
  54 class _Singleton(type):
  55     """ A metaclass that creates a Singleton base class when called. """
  56     _instances = {}
  57
  58     def __call__(cls, *args, **kwargs):
  59         if cls not in cls._instances:
  60             cls._instances[cls] = super(_Singleton, cls).__call__(*args, **kwargs)
  61         return cls._instances[cls]
  62
  63 class Singleton(_Singleton('SingletonMeta', (object,), {})):
  64     pass
  65
  66 SIGNALS_TO_NAMES_DICT = dict((getattr(signal, n), n)
  67                              for n in dir(signal) if n.startswith('SIG') and '_' not in n)
  68
  69 return_code = 0
  70
  71 # exit correctly
  72 def tesh_exit(errcode):
  73     # If you do not flush some prints are skipped
  74     sys.stdout.flush()
  75     # os._exit exit even when executed within a thread
  76     os._exit(errcode)
  77
  78
  79 def fatal_error(msg):
  80     print("[Tesh/CRITICAL] " + str(msg))
  81     tesh_exit(1)
  82
  83
  84 # Set an environment variable.
  85 # arg must be a string with the format "variable=value"
  86 def setenv(arg):
  87     print("[Tesh/INFO] setenv " + arg)
  88     t = arg.split("=", 1)
  89     os.environ[t[0]] = t[1]
  90     # os.putenv(t[0], t[1]) does not work
  91     # see http://stackoverflow.com/questions/17705419/python-os-environ-os-putenv-usr-bin-env
  92
  93
  94 # http://stackoverflow.com/questions/30734967/how-to-expand-environment-variables-in-python-as-bash-does
  95 def expandvars2(path):
  96     return re.sub(r'(?<!\\)\$[A-Za-z_][A-Za-z0-9_]*', '', os.path.expandvars(path))
  97
  98 ##############
  99 #
 100 # Cleanup on signal
 101 #
 102 #
 103
 104 # Global variable. Stores which process group should be killed (or None otherwise)
 105 running_pids = list()
 106
 107 # Tests whether the process is dead already
 108 def process_is_dead(pid):
 109     try:
 110         os.kill(pid, 0)
 111     except ProcessLookupError:
 112         return True
 113     except OSError as err:
 114         if err.errno == errno.ESRCH: # ESRCH == No such process. The process is now dead
 115             return True
 116     return False
 117
 118 # This function send TERM signal + KILL signal after 0.2s to the group of the specified process
 119 def kill_process_group(pid):
 120     if pid is None:  # Nobody to kill. We don't know who to kill on windows, or we don't have anyone to kill on signal handler
 121         return
 122
 123     try:
 124         pgid = os.getpgid(pid)
 125     except:
 126         # os.getpgid failed. Ok, don't cleanup.
 127         return
 128
 129     try:
 130         os.killpg(pgid, signal.SIGTERM)
 131         if process_is_dead(pid):
 132             return
 133         time.sleep(0.2)
 134         os.killpg(pgid, signal.SIGKILL)
 135     except OSError:
 136         # os.killpg failed. OK. Some subprocesses may still be running.
 137         pass
 138
 139 def signal_handler(signal, frame):
 140     print("Caught signal {}".format(SIGNALS_TO_NAMES_DICT[signal]))
 141     global running_pids
 142     running_pids_copy = running_pids # Just in case of interthread conflicts.
 143     for pid in running_pids_copy:
 144         kill_process_group(pid)
 145     running_pids.clear()
 146     tesh_exit(5)
 147
 148
 149 ##############
 150 #
 151 # Classes
 152 #
 153 #
 154
 155
 156 # read file line per line (and concat line that ends with "\")
 157 class FileReader(Singleton):
 158     def __init__(self, filename=None):
 159         if filename is None:
 160             self.filename = "(stdin)"
 161             self.f = sys.stdin
 162         else:
 163             self.filename_raw = filename
 164             self.filename = os.path.basename(filename)
 165             self.abspath = os.path.abspath(filename)
 166             self.f = open(self.filename_raw)
 167
 168         self.linenumber = 0
 169
 170     def __repr__(self):
 171         return self.filename + ":" + str(self.linenumber)
 172
 173     def readfullline(self):
 174         try:
 175             line = next(self.f)
 176             self.linenumber += 1
 177         except StopIteration:
 178             return None
 179         if line[-1] == "\n":
 180             txt = line[0:-1]
 181         else:
 182             txt = line
 183         while len(line) > 1 and line[-2] == "\\":
 184             txt = txt[0:-1]
 185             line = next(self.f)
 186             self.linenumber += 1
 187             txt += line[0:-1]
 188         return txt
 189
 190
 191 # keep the state of tesh (mostly configuration values)
 192 class TeshState(Singleton):
 193     def __init__(self):
 194         self.threads = []
 195         self.args_suffix = ""
 196         self.ignore_regexps_common = []
 197         self.jenkins = False  # not a Jenkins run by default
 198         self.timeout = 10  # default value: 10 sec
 199         self.wrapper = None
 200         self.keep = False
 201
 202     def add_thread(self, thread):
 203         self.threads.append(thread)
 204
 205     def join_all_threads(self):
 206         for t in self.threads:
 207             t.acquire()
 208             t.release()
 209
 210 # Command line object
 211
 212
 213 class Cmd(object):
 214     def __init__(self):
 215         self.input_pipe = []
 216         self.output_pipe_stdout = []
 217         self.output_pipe_stderr = []
 218         self.timeout = TeshState().timeout
 219         self.args = None
 220         self.linenumber = -1
 221
 222         self.background = False
 223         # Python threads loose the cwd
 224         self.cwd = os.getcwd()
 225
 226         self.ignore_output = False
 227         self.expect_return = [0]
 228
 229         self.output_display = False
 230
 231         self.sort = -1
 232
 233         self.ignore_regexps = TeshState().ignore_regexps_common
 234
 235     def add_input_pipe(self, l):
 236         self.input_pipe.append(l)
 237
 238     def add_output_pipe_stdout(self, l):
 239         self.output_pipe_stdout.append(l)
 240
 241     def add_output_pipe_stderr(self, l):
 242         self.output_pipe_stderr.append(l)
 243
 244     def set_cmd(self, args, linenumber):
 245         self.args = args
 246         self.linenumber = linenumber
 247
 248     def add_ignore(self, txt):
 249         self.ignore_regexps.append(re.compile(txt))
 250
 251     def remove_ignored_lines(self, lines):
 252         for ign in self.ignore_regexps:
 253             lines = [l for l in lines if not ign.match(l)]
 254         return lines
 255
 256     def _cmd_mkfile(self, argline):
 257         filename = argline[len("mkfile "):]
 258         file = open(filename, "w")
 259         if file is None:
 260             fatal_error("Unable to create file " + filename)
 261         file.write("\n".join(self.input_pipe))
 262         file.write("\n")
 263         file.close()
 264
 265     def _cmd_cd(self, argline):
 266         args = shlex.split(argline)
 267         if len(args) != 2:
 268             fatal_error("Too many arguments to cd")
 269         try:
 270             os.chdir(args[1])
 271             print("[Tesh/INFO] change directory to " + args[1])
 272         except FileNotFoundError:
 273             print("Chdir to " + args[1] + " failed: No such file or directory")
 274             print("Test suite `" + FileReader().filename + "': NOK (system error)")
 275             tesh_exit(4)
 276
 277     # Run the Cmd if possible.
 278     # Return False if nothing has been ran.
 279
 280     def run_if_possible(self):
 281         if self.can_run():
 282             if self.background:
 283                 lock = _thread.allocate_lock()
 284                 lock.acquire()
 285                 TeshState().add_thread(lock)
 286                 _thread.start_new_thread(Cmd._run, (self, lock))
 287             else:
 288                 self._run()
 289             return True
 290         else:
 291             return False
 292
 293     def _run(self, lock=None):
 294         # Python threads loose the cwd
 295         os.chdir(self.cwd)
 296
 297         # retrocompatibility: support ${aaa:=.} variable format
 298         def replace_perl_variables(m):
 299             vname = m.group(1)
 300             vdefault = m.group(2)
 301             if vname in os.environ:
 302                 return "$" + vname
 303             return vdefault
 304
 305         self.args = re.sub(r"\${(\w+):=([^}]*)}", replace_perl_variables, self.args)
 306
 307         # replace bash environment variables ($THINGS) to their values
 308         self.args = expandvars2(self.args)
 309
 310         if re.match("^mkfile ", self.args) is not None:
 311             self._cmd_mkfile(self.args)
 312             if lock is not None:
 313                 lock.release()
 314             return
 315
 316         if re.match("^cd ", self.args) is not None:
 317             self._cmd_cd(self.args)
 318             if lock is not None:
 319                 lock.release()
 320             return
 321
 322         if TeshState().wrapper is not None:
 323             self.timeout *= 20
 324             self.args = TeshState().wrapper + self.args
 325         elif re.match(".*smpirun.*", self.args) is not None:
 326             self.args = "sh " + self.args
 327         if TeshState().jenkins and self.timeout is not None:
 328             self.timeout *= 10
 329
 330         self.args += TeshState().args_suffix
 331
 332         logs = list()
 333         logs.append("[{file}:{number}] {args}".format(file=FileReader().filename,
 334             number=self.linenumber, args=self.args))
 335
 336         args = shlex.split(self.args)
 337
 338         global running_pids
 339         local_pid = None
 340         global return_code
 341
 342         try:
 343             preexec_function = None
 344             if not isWindows():
 345                 preexec_function = lambda: os.setpgid(0, 0)
 346             proc = subprocess.Popen(
 347                 args,
 348                 bufsize=1,
 349                 stdin=subprocess.PIPE,
 350                 stdout=subprocess.PIPE,
 351                 stderr=subprocess.STDOUT,
 352                 universal_newlines=True,
 353                 preexec_fn=preexec_function)
 354             if not isWindows():
 355                 local_pid = proc.pid
 356                 running_pids.append(local_pid)
 357         except PermissionError:
 358             logs.append("[{file}:{number}] Cannot start '{cmd}': The binary is not executable.".format(
 359                 file=FileReader().filename, number=self.linenumber, cmd=args[0]))
 360             logs.append("[{file}:{number}] Current dir: {dir}".format(file=FileReader().filename,
 361                 number=self.linenumber, dir=os.getcwd()))
 362             return_code = max(3, return_code)
 363             print('\n'.join(logs))
 364             return
 365         except NotADirectoryError:
 366             logs.append("[{file}:{number}] Cannot start '{cmd}': The path to binary does not exist.".format(
 367                 file=FileReader().filename, number=self.linenumber, cmd=args[0]))
 368             logs.append("[{file}:{number}] Current dir: {dir}".format(file=FileReader().filename,
 369                 number=self.linenumber, dir=os.getcwd()))
 370             return_code = max(3, return_code)
 371             print('\n'.join(logs))
 372             return
 373         except FileNotFoundError:
 374             logs.append("[{file}:{number}] Cannot start '{cmd}': File not found.".format(
 375                 file=FileReader().filename, number=self.linenumber, cmd=args[0]))
 376             return_code = max(3, return_code)
 377             print('\n'.join(logs))
 378             return
 379         except OSError as osE:
 380             if osE.errno == 8:
 381                 osE.strerror += "\nOSError: [Errno 8] Executed scripts should start with shebang line (like #!/usr/bin/env sh)"
 382             raise osE
 383
 384         cmdName = FileReader().filename + ":" + str(self.linenumber)
 385         try:
 386             (stdout_data, stderr_data) = proc.communicate("\n".join(self.input_pipe), self.timeout)
 387             local_pid = None
 388             timeout_reached = False
 389         except subprocess.TimeoutExpired:
 390             timeout_reached = True
 391             logs.append("Test suite `{file}': NOK (<{cmd}> timeout after {timeout} sec)".format(
 392                 file=FileReader().filename, cmd=cmdName, timeout=self.timeout))
 393             running_pids.remove(local_pid)
 394             kill_process_group(local_pid)
 395             # Try to get the output of the timeout process, to help in debugging.
 396             try:
 397                 (stdout_data, stderr_data) = proc.communicate(timeout=1)
 398             except subprocess.TimeoutExpired:
 399                 logs.append("[{file}:{number}] Could not retrieve output. Killing the process group failed?".format(
 400                     file=FileReader().filename, number=self.linenumber))
 401                 return_code = max(3, return_code)
 402                 print('\n'.join(logs))
 403                 return
 404
 405         if self.output_display:
 406             logs.append(str(stdout_data))
 407
 408         # remove text colors
 409         ansi_escape = re.compile(r'\x1b[^m]*m')
 410         stdout_data = ansi_escape.sub('', stdout_data)
 411
 412         if self.ignore_output:
 413             logs.append("(ignoring the output of <{cmd}> as requested)".format(cmd=cmdName))
 414         else:
 415             stdouta = stdout_data.split("\n")
 416             while stdouta and stdouta[-1] == "":
 417                 del stdouta[-1]
 418             stdouta = self.remove_ignored_lines(stdouta)
 419             stdcpy = stdouta[:]
 420
 421             # Mimic the "sort" bash command, which is case unsensitive.
 422             if self.sort == 0:
 423                 stdouta.sort(key=lambda x: x.lower())
 424                 self.output_pipe_stdout.sort(key=lambda x: x.lower())
 425             elif self.sort > 0:
 426                 stdouta.sort(key=lambda x: x[:self.sort].lower())
 427                 self.output_pipe_stdout.sort(key=lambda x: x[:self.sort].lower())
 428
 429             diff = list(
 430                 difflib.unified_diff(
 431                     self.output_pipe_stdout,
 432                     stdouta,
 433                     lineterm="",
 434                     fromfile='expected',
 435                     tofile='obtained'))
 436             if diff:
 437                 logs.append("Output of <{cmd}> mismatch:".format(cmd=cmdName))
 438                 if self.sort >= 0:  # If sorted, truncate the diff output and show the unsorted version
 439                     difflen = 0
 440                     for line in diff:
 441                         if difflen < 50:
 442                             print(line)
 443                         difflen += 1
 444                     if difflen > 50:
 445                         logs.append("(diff truncated after 50 lines)")
 446                     logs.append("Unsorted observed output:\n")
 447                     for line in stdcpy:
 448                         logs.append(line)
 449                 else:  # If not sorted, just display the diff
 450                     for line in diff:
 451                         logs.append(line)
 452
 453                 logs.append("Test suite `{file}': NOK (<{cmd}> output mismatch)".format(
 454                     file=FileReader().filename, cmd=cmdName))
 455                 if lock is not None:
 456                     lock.release()
 457                 if TeshState().keep:
 458                     f = open('obtained', 'w')
 459                     obtained = stdout_data.split("\n")
 460                     while obtained and obtained[-1] == "":
 461                         del obtained[-1]
 462                     obtained = self.remove_ignored_lines(obtained)
 463                     for line in obtained:
 464                         f.write("> " + line + "\n")
 465                     f.close()
 466                     logs.append("Obtained output kept as requested: {path}".format(path=os.path.abspath("obtained")))
 467                 return_code = max(2, return_code)
 468                 print('\n'.join(logs))
 469                 return
 470
 471         if timeout_reached:
 472             return_code = max(3, return_code)
 473             print('\n'.join(logs))
 474             return
 475
 476         if not proc.returncode in self.expect_return:
 477             if proc.returncode >= 0:
 478                 logs.append("Test suite `{file}': NOK (<{cmd}> returned code {code})".format(
 479                     file=FileReader().filename, cmd=cmdName, code=proc.returncode))
 480                 if lock is not None:
 481                     lock.release()
 482                 return_code = max(2, return_code)
 483                 print('\n'.join(logs))
 484                 return
 485             else:
 486                 logs.append("Test suite `{file}': NOK (<{cmd}> got signal {sig})".format(
 487                     file=FileReader().filename, cmd=cmdName,
 488                     sig=SIGNALS_TO_NAMES_DICT[-proc.returncode]))
 489                 if lock is not None:
 490                     lock.release()
 491                 return_code = max(max(-proc.returncode, 1), return_code)
 492                 print('\n'.join(logs))
 493                 return
 494
 495         if lock is not None:
 496             lock.release()
 497
 498         print('\n'.join(logs))
 499
 500     def can_run(self):
 501         return self.args is not None
 502
 503 ##############
 504 #
 505 # Main
 506 #
 507 #
 508
 509 if __name__ == '__main__':
 510     signal.signal(signal.SIGINT, signal_handler)
 511     signal.signal(signal.SIGTERM, signal_handler)
 512
 513     parser = argparse.ArgumentParser(description='tesh -- testing shell')
 514     group1 = parser.add_argument_group('Options')
 515     group1.add_argument('teshfile', nargs='?', help='Name of teshfile, stdin if omitted')
 516     group1.add_argument(
 517         '--cd',
 518         metavar='some/directory',
 519         help='ask tesh to switch the working directory before launching the tests')
 520     group1.add_argument('--setenv', metavar='var=value', action='append', help='set a specific environment variable')
 521     group1.add_argument('--cfg', metavar='arg', action='append', help='add parameter --cfg=arg to each command line')
 522     group1.add_argument('--log', metavar='arg', action='append', help='add parameter --log=arg to each command line')
 523     group1.add_argument(
 524         '--ignore-jenkins',
 525         action='store_true',
 526         help='ignore all cruft generated on SimGrid continuous integration servers')
 527     group1.add_argument('--wrapper', metavar='arg', help='Run each command in the provided wrapper (eg valgrind)')
 528     group1.add_argument(
 529         '--keep',
 530         action='store_true',
 531         help='Keep the obtained output when it does not match the expected one')
 532
 533     options = parser.parse_args()
 534
 535     if options.cd is not None:
 536         print("[Tesh/INFO] change directory to " + options.cd)
 537         os.chdir(options.cd)
 538
 539     if options.ignore_jenkins:
 540         print("Ignore all cruft seen on SimGrid's continuous integration servers")
 541         # Note: regexps should match at the beginning of lines
 542         TeshState().ignore_regexps_common = [
 543             re.compile(r"profiling:"),
 544             re.compile(r"Unable to clean temporary file C:"),
 545             re.compile(r".*Configuration change: Set 'contexts/"),
 546             re.compile(r"Picked up JAVA_TOOL_OPTIONS: "),
 547             re.compile(r"Picked up _JAVA_OPTIONS: "),
 548             re.compile(r"==[0-9]+== ?WARNING: ASan doesn't fully support"),
 549             re.compile(r"==[0-9]+== ?WARNING: ASan is ignoring requested __asan_handle_no_return: stack top:"),
 550             re.compile(r"False positive error reports may follow"),
 551             re.compile(r"For details see http://code\.google\.com/p/address-sanitizer/issues/detail\?id=189"),
 552             re.compile(r"For details see https://github\.com/google/sanitizers/issues/189"),
 553             re.compile(r"Python runtime initialized with LC_CTYPE=C .*"),
 554             # Seen on CircleCI
 555             re.compile(r"cmake: /usr/local/lib/libcurl\.so\.4: no version information available \(required by cmake\)"),
 556             re.compile(r".*mmap broken on FreeBSD, but dlopen\+thread broken too\. Switching to dlopen\+raw contexts\."),
 557             re.compile(r".*dlopen\+thread broken on Apple and BSD\. Switching to raw contexts\."),
 558         ]
 559         TeshState().jenkins = True  # This is a Jenkins build
 560
 561     if options.teshfile is None:
 562         f = FileReader(None)
 563         print("Test suite from stdin")
 564     else:
 565         if not os.path.isfile(options.teshfile):
 566             print("Cannot open teshfile '" + options.teshfile + "': File not found")
 567             tesh_exit(3)
 568         f = FileReader(options.teshfile)
 569         print("Test suite '" + f.abspath + "'")
 570
 571     if options.setenv is not None:
 572         for e in options.setenv:
 573             setenv(e)
 574
 575     if options.cfg is not None:
 576         for c in options.cfg:
 577             TeshState().args_suffix += " --cfg=" + c
 578     if options.log is not None:
 579         for l in options.log:
 580             TeshState().args_suffix += " --log=" + l
 581
 582     if options.wrapper is not None:
 583         TeshState().wrapper = options.wrapper
 584
 585     if options.keep:
 586         TeshState().keep = True
 587
 588     # cmd holds the current command line
 589     # tech commands will add some parameters to it
 590     # when ready, we execute it.
 591     cmd = Cmd()
 592
 593     line = f.readfullline()
 594     while line is not None:
 595         # print(">>============="+line+"==<<")
 596         if not line:
 597             #print ("END CMD block")
 598             if cmd.run_if_possible():
 599                 cmd = Cmd()
 600
 601         elif line[0] == "#":
 602             pass
 603
 604         elif line[0:2] == "p ":
 605             print("[" + str(FileReader()) + "] " + line[2:])
 606
 607         elif line[0:2] == "< ":
 608             cmd.add_input_pipe(line[2:])
 609         elif line[0:1] == "<":
 610             cmd.add_input_pipe(line[1:])
 611
 612         elif line[0:2] == "> ":
 613             cmd.add_output_pipe_stdout(line[2:])
 614         elif line[0:1] == ">":
 615             cmd.add_output_pipe_stdout(line[1:])
 616
 617         elif line[0:2] == "$ ":
 618             if cmd.run_if_possible():
 619                 cmd = Cmd()
 620             cmd.set_cmd(line[2:], f.linenumber)
 621
 622         elif line[0:2] == "& ":
 623             if cmd.run_if_possible():
 624                 cmd = Cmd()
 625             cmd.set_cmd(line[2:], f.linenumber)
 626             cmd.background = True
 627
 628         elif line[0:15] == "! output ignore":
 629             cmd.ignore_output = True
 630             #print("cmd.ignore_output = True")
 631         elif line[0:16] == "! output display":
 632             cmd.output_display = True
 633             cmd.ignore_output = True
 634         elif line[0:15] == "! expect return":
 635             cmd.expect_return = [int(line[16:])]
 636             #print("expect return "+str(int(line[16:])))
 637         elif line[0:15] == "! expect signal":
 638             cmd.expect_return = []
 639             for sig in (line[16:]).split("|"):
 640                 # get the signal integer value from the signal module
 641                 if sig not in signal.__dict__:
 642                     fatal_error("unrecognized signal '" + sig + "'")
 643                 sig = int(signal.__dict__[sig])
 644                 # popen return -signal when a process ends with a signal
 645                 cmd.expect_return.append(-sig)
 646         elif line[0:len("! timeout ")] == "! timeout ":
 647             if "no" in line[len("! timeout "):]:
 648                 cmd.timeout = None
 649             else:
 650                 cmd.timeout = int(line[len("! timeout "):])
 651
 652         elif line[0:len("! output sort")] == "! output sort":
 653             if len(line) >= len("! output sort "):
 654                 sort = int(line[len("! output sort "):])
 655             else:
 656                 sort = 0
 657             cmd.sort = sort
 658         elif line[0:len("! setenv ")] == "! setenv ":
 659             setenv(line[len("! setenv "):])
 660
 661         elif line[0:len("! ignore ")] == "! ignore ":
 662             cmd.add_ignore(line[len("! ignore "):])
 663
 664         else:
 665             fatal_error("UNRECOGNIZED OPTION")
 666
 667         line = f.readfullline()
 668
 669     cmd.run_if_possible()
 670
 671     TeshState().join_all_threads()
 672
 673     if return_code == 0:
 674         if f.filename == "(stdin)":
 675             print("Test suite from stdin OK")
 676         else:
 677             print("Test suite `" + f.filename + "' OK")
 678     else:
 679         tesh_exit(return_code)