2 # -*- coding: utf-8 -*-
6 ========================
8 Copyright (c) 2012-2016. The SimGrid Team.
11 This program is free software; you can redistribute it and/or modify it
12 under the terms of the license (GNU LGPL) which comes with this package.
15 #TODO: child of child of child that printfs. Does it work?
16 #TODO: a child dies after its parent. What happen?
18 #TODO: regular expression in output
19 #ex: >> Time taken: [0-9]+s
20 #TODO: linked regular expression in output
22 # >> Bytes sent: ([0-9]+)
27 # TODO: If the output is sorted, we should report it to the users. Corresponding perl chunk
28 # print "WARNING: Both the observed output and expected output were sorted as requested.\n";
29 # print "WARNING: Output were only sorted using the $sort_prefix first chars.\n"
30 # if ( $sort_prefix > 0 );
31 # print "WARNING: Use <! output sort 19> to sort by simulated date and process ID only.\n";
33 # print "----8<--------------- Begin of unprocessed observed output (as it should appear in file):\n";
34 # map {print "> $_\n"} @{$cmd{'unsorted got'}};
35 # print "--------------->8---- End of the unprocessed observed output.\n";
48 if sys.version_info[0] == 3:
51 elif sys.version_info[0] < 3:
52 import subprocess32 as subprocess
53 import thread as _thread
55 raise "This program has not been made to exist this long"
66 # Singleton metaclass that works in Python 2 & 3
67 # http://stackoverflow.com/questions/6760685/creating-a-singleton-in-python
68 class _Singleton(type):
69 """ A metaclass that creates a Singleton base class when called. """
71 def __call__(cls, *args, **kwargs):
72 if cls not in cls._instances:
73 cls._instances[cls] = super(_Singleton, cls).__call__(*args, **kwargs)
74 return cls._instances[cls]
75 class Singleton(_Singleton('SingletonMeta', (object,), {})): pass
77 SIGNALS_TO_NAMES_DICT = dict((getattr(signal, n), n) \
78 for n in dir(signal) if n.startswith('SIG') and '_' not in n )
84 #If you do not flush some prints are skipped
86 #os._exit exit even when executed within a thread
91 print("[Tesh/CRITICAL] "+str(msg))
95 #Set an environment variable.
96 # arg must be a string with the format "variable=value"
98 print("[Tesh/INFO] setenv "+arg)
100 os.environ[t[0]] = t[1]
101 #os.putenv(t[0], t[1]) does not work
102 #see http://stackoverflow.com/questions/17705419/python-os-environ-os-putenv-usr-bin-env
105 #http://stackoverflow.com/questions/30734967/how-to-expand-environment-variables-in-python-as-bash-does
106 def expandvars2(path):
107 return re.sub(r'(?<!\\)\$[A-Za-z_][A-Za-z0-9_]*', '', os.path.expandvars(path))
109 # https://github.com/Cadair/jupyter_environment_kernels/issues/10
114 FileNotFoundError = OSError
125 # read file line per line (and concat line that ends with "\")
126 class FileReader(Singleton):
127 def __init__(self, filename):
129 self.filename = "(stdin)"
132 self.filename_raw = filename
133 self.filename = os.path.basename(filename)
134 self.f = open(self.filename_raw)
138 def linenumber(self):
139 return self.linenumber
142 return self.filename+":"+str(self.linenumber)
144 def readfullline(self):
148 except StopIteration:
154 while len(line) > 1 and line[-2] == "\\":
162 #keep the state of tesh (mostly configuration values)
163 class TeshState(Singleton):
166 self.args_suffix = ""
167 self.ignore_regexps_common = []
169 def add_thread(self, thread):
170 self.threads.append(thread)
172 def join_all_threads(self):
173 for t in self.threads:
184 self.output_pipe_stdout = []
185 self.output_pipe_stderr = []
190 self.background = False
193 self.ignore_output = False
194 self.expect_return = 0
196 self.output_display = False
200 self.ignore_regexps = TeshState().ignore_regexps_common
202 def add_input_pipe(self, l):
203 self.input_pipe.append(l)
205 def add_output_pipe_stdout(self, l):
206 self.output_pipe_stdout.append(l)
208 def add_output_pipe_stderr(self, l):
209 self.output_pipe_stderr.append(l)
211 def set_cmd(self, args, linenumber):
213 self.linenumber = linenumber
215 def add_ignore(self, txt):
216 self.ignore_regexps.append(re.compile(txt))
218 def remove_ignored_lines(self, lines):
219 for ign in self.ignore_regexps:
220 lines = [l for l in lines if not ign.match(l)]
224 def _cmd_mkfile(self, argline):
225 filename = argline[len("mkfile "):]
226 file = open(filename, "w")
228 fatal_error("Unable to create file "+filename)
229 file.write("\n".join(self.input_pipe))
232 def _cmd_cd(self, argline):
233 args = shlex.split(argline)
235 fatal_error("Too many arguments to cd")
238 print("[Tesh/INFO] change directory to "+args[1])
239 except FileNotFoundError:
240 print("Chdir to "+args[1]+" failed: No such file or directory")
241 print("Test suite `"+FileReader().filename+"': NOK (system error)")
245 #Run the Cmd if possible.
246 # Return False if nothing has been ran.
247 def run_if_possible(self):
250 #Python threads loose the cwd
251 self.cwd = os.getcwd()
252 lock = _thread.allocate_lock()
254 TeshState().add_thread(lock)
255 _thread.start_new_thread( Cmd._run, (self, lock) )
263 def _run(self, lock=None):
264 #Python threads loose the cwd
265 if self.cwd is not None:
269 #retrocompatibility: support ${aaa:=.} variable format
270 def replace_perl_variables(m):
272 vdefault = m.group(2)
273 if vname in os.environ:
277 self.args = re.sub(r"\${(\w+):=([^}]*)}", replace_perl_variables, self.args)
279 #replace bash environment variables ($THINGS) to their values
280 self.args = expandvars2(self.args)
282 if re.match("^mkfile ", self.args) is not None:
283 self._cmd_mkfile(self.args)
284 if lock is not None: lock.release()
287 if re.match("^cd ", self.args) is not None:
288 self._cmd_cd(self.args)
289 if lock is not None: lock.release()
292 self.args += TeshState().args_suffix
294 print("["+FileReader().filename+":"+str(self.linenumber)+"] "+self.args)
296 args = shlex.split(self.args)
299 proc = subprocess.Popen(args, bufsize=1, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True)
302 e.strerror += "\nOSError: [Errno 8] Executed scripts should start with shebang line (like #!/bin/sh)"
306 (stdout_data, stderr_data) = proc.communicate("\n".join(self.input_pipe), self.timeout)
307 except subprocess.TimeoutExpired:
308 print("Test suite `"+FileReader().filename+"': NOK (<"+FileReader().filename+":"+str(self.linenumber)+"> timeout after "+str(self.timeout)+" sec)")
311 if self.output_display:
315 ansi_escape = re.compile(r'\x1b[^m]*m')
316 stdout_data = ansi_escape.sub('', stdout_data)
318 #print ((stdout_data, stderr_data))
320 if self.ignore_output:
321 print("(ignoring the output of <"+FileReader().filename+":"+str(self.linenumber)+"> as requested)")
323 stdouta = stdout_data.split("\n")
324 while len(stdouta) > 0 and stdouta[-1] == "":
326 stdouta = self.remove_ignored_lines(stdouta)
328 #the "sort" bash command is case unsensitive,
329 # we mimic its behaviour
331 stdouta.sort(key=lambda x: x.lower())
332 self.output_pipe_stdout.sort(key=lambda x: x.lower())
334 stdouta.sort(key=lambda x: x[:self.sort].lower())
335 self.output_pipe_stdout.sort(key=lambda x: x[:self.sort].lower())
337 diff = list(difflib.unified_diff(self.output_pipe_stdout, stdouta,lineterm="",fromfile='expected', tofile='obtained'))
339 print("Output of <"+FileReader().filename+":"+str(self.linenumber)+"> mismatch:")
342 print("Test suite `"+FileReader().filename+"': NOK (<"+str(FileReader())+"> output mismatch)")
343 if lock is not None: lock.release()
346 #print ((proc.returncode, self.expect_return))
348 if proc.returncode != self.expect_return:
349 if proc.returncode >= 0:
350 print("Test suite `"+FileReader().filename+"': NOK (<"+str(FileReader())+"> returned code "+str(proc.returncode)+")")
351 if lock is not None: lock.release()
354 print("Test suite `"+FileReader().filename+"': NOK (<"+str(FileReader())+"> got signal "+SIGNALS_TO_NAMES_DICT[-proc.returncode]+")")
355 if lock is not None: lock.release()
356 exit(-proc.returncode)
358 if lock is not None: lock.release()
363 return self.args is not None
382 if __name__ == '__main__':
384 parser = argparse.ArgumentParser(description='tesh -- testing shell', add_help=True)
385 group1 = parser.add_argument_group('Options')
386 group1.add_argument('teshfile', nargs='?', help='Name of teshfile, stdin if omitted')
387 group1.add_argument('--cd', metavar='some/directory', help='ask tesh to switch the working directory before launching the tests')
388 group1.add_argument('--setenv', metavar='var=value', action='append', help='set a specific environment variable')
389 group1.add_argument('--cfg', metavar='arg', help='add parameter --cfg=arg to each command line')
390 group1.add_argument('--log', metavar='arg', help='add parameter --log=arg to each command line')
391 group1.add_argument('--enable-coverage', action='store_true', help='ignore output lines starting with "profiling:"')
394 options = parser.parse_args()
398 if options.cd is not None:
401 if options.enable_coverage:
402 print("Enable coverage")
403 TeshState().ignore_regexps_common = [re.compile("^profiling:")]
405 if options.teshfile is None:
407 print("Test suite from stdin")
409 f = FileReader(options.teshfile)
410 print("Test suite '"+f.filename+"'")
412 if options.setenv is not None:
413 for e in options.setenv:
416 if options.cfg is not None:
417 TeshState().args_suffix += " --cfg="+options.cfg
418 if options.log is not None:
419 TeshState().args_suffix += " --log="+options.log
422 #cmd holds the current command line
423 # tech commands will add some parameters to it
424 # when ready, we execute it.
427 line = f.readfullline()
428 while line is not None:
429 #print(">>============="+line+"==<<")
431 #print ("END CMD block")
432 if cmd.run_if_possible():
438 elif line[0:2] == "p ":
439 print("["+str(FileReader())+"] "+line[2:])
441 elif line[0:2] == "< ":
442 cmd.add_input_pipe(line[2:])
443 elif line[0:1] == "<":
444 cmd.add_input_pipe(line[1:])
446 elif line[0:2] == "> ":
447 cmd.add_output_pipe_stdout(line[2:])
448 elif line[0:1] == ">":
449 cmd.add_output_pipe_stdout(line[1:])
451 elif line[0:2] == "$ ":
452 if cmd.run_if_possible():
454 cmd.set_cmd(line[2:], f.linenumber)
456 elif line[0:2] == "& ":
457 if cmd.run_if_possible():
459 cmd.set_cmd(line[2:], f.linenumber)
460 cmd.background = True
462 elif line[0:15] == "! output ignore":
463 cmd.ignore_output = True
464 #print("cmd.ignore_output = True")
465 elif line[0:16] == "! output display":
466 cmd.output_display = True
467 cmd.ignore_output = True
468 elif line[0:15] == "! expect return":
469 cmd.expect_return = int(line[16:])
470 #print("expect return "+str(int(line[16:])))
471 elif line[0:15] == "! expect signal":
473 #get the signal integer value from the signal module
474 if sig not in signal.__dict__:
475 fatal_error("unrecognized signal '"+sig+"'")
476 sig = int(signal.__dict__[sig])
477 #popen return -signal when a process ends with a signal
478 cmd.expect_return = -sig
479 elif line[0:len("! timeout ")] == "! timeout ":
480 if "no" in line[len("! timeout "):]:
483 cmd.timeout = int(line[len("! timeout "):])
485 elif line[0:len("! output sort")] == "! output sort":
486 if len(line) >= len("! output sort "):
487 sort = int(line[len("! output sort "):])
491 elif line[0:len("! setenv ")] == "! setenv ":
492 setenv(line[len("! setenv "):])
494 elif line[0:len("! ignore ")] == "! ignore ":
495 cmd.add_ignore(line[len("! ignore "):])
498 fatal_error("UNRECOGNIZED OPTION")
501 line = f.readfullline()
503 cmd.run_if_possible()
505 TeshState().join_all_threads()
507 if f.filename == "(stdin)":
508 print("Test suite from stdin OK")
510 print("Test suite `"+f.filename+"' OK")