selftest/subunithelper.py

   1 # Python module for parsing and generating the Subunit protocol
   2 # (Samba-specific)
   3 # Copyright (C) 2008-2009 Jelmer Vernooij <jelmer@samba.org>
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 __all__ = ['parse_results']
  19
  20 import re
  21 import sys
  22 from samba import subunit
  23 from samba.subunit.run import TestProtocolClient
  24 from samba.subunit import iso8601
  25 import unittest
  26
  27 VALID_RESULTS = ['success', 'successful', 'failure', 'fail', 'skip', 'knownfail', 'error', 'xfail', 'skip-testsuite', 'testsuite-failure', 'testsuite-xfail', 'testsuite-success', 'testsuite-error', 'uxsuccess', 'testsuite-uxsuccess']
  28
  29 class TestsuiteEnabledTestResult(unittest.TestResult):
  30
  31     def start_testsuite(self, name):
  32         raise NotImplementedError(self.start_testsuite)
  33
  34
  35 def parse_results(msg_ops, statistics, fh):
  36     exitcode = 0
  37     open_tests = {}
  38
  39     while fh:
  40         l = fh.readline()
  41         if l == "":
  42             break
  43         parts = l.split(None, 1)
  44         if not len(parts) == 2 or not l.startswith(parts[0]):
  45             msg_ops.output_msg(l)
  46             continue
  47         command = parts[0].rstrip(":")
  48         arg = parts[1]
  49         if command in ("test", "testing"):
  50             msg_ops.control_msg(l)
  51             name = arg.rstrip()
  52             test = subunit.RemotedTestCase(name)
  53             if name in open_tests:
  54                 msg_ops.addError(open_tests.pop(name), subunit.RemoteError(u"Test already running"))
  55             msg_ops.startTest(test)
  56             open_tests[name] = test
  57         elif command == "time":
  58             msg_ops.control_msg(l)
  59             try:
  60                 dt = iso8601.parse_date(arg.rstrip("\n"))
  61             except TypeError, e:
  62                 print "Unable to parse time line: %s" % arg.rstrip("\n")
  63             else:
  64                 msg_ops.time(dt)
  65         elif command in VALID_RESULTS:
  66             msg_ops.control_msg(l)
  67             result = command
  68             grp = re.match("(.*?)( \[)?([ \t]*)( multipart)?\n", arg)
  69             (testname, hasreason) = (grp.group(1), grp.group(2))
  70             if hasreason:
  71                 reason = ""
  72                 # reason may be specified in next lines
  73                 terminated = False
  74                 while fh:
  75                     l = fh.readline()
  76                     if l == "":
  77                         break
  78                     msg_ops.control_msg(l)
  79                     if l == "]\n":
  80                         terminated = True
  81                         break
  82                     else:
  83                         reason += l
  84
  85                 remote_error = subunit.RemoteError(reason.decode("utf-8"))
  86
  87                 if not terminated:
  88                     statistics['TESTS_ERROR']+=1
  89                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"reason (%s) interrupted" % result))
  90                     return 1
  91             else:
  92                 reason = None
  93                 remote_error = subunit.RemoteError(u"No reason specified")
  94             if result in ("success", "successful"):
  95                 try:
  96                     test = open_tests.pop(testname)
  97                 except KeyError:
  98                     statistics['TESTS_ERROR']+=1
  99                     exitcode = 1
 100                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"Test was never started"))
 101                 else:
 102                     statistics['TESTS_EXPECTED_OK']+=1
 103                     msg_ops.addSuccess(test)
 104             elif result in ("xfail", "knownfail"):
 105                 try:
 106                     test = open_tests.pop(testname)
 107                 except KeyError:
 108                     statistics['TESTS_ERROR']+=1
 109                     exitcode = 1
 110                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"Test was never started"))
 111                 else:
 112                     statistics['TESTS_EXPECTED_FAIL']+=1
 113                     msg_ops.addExpectedFailure(test, remote_error)
 114             elif result in ("uxsuccess", ):
 115                 try:
 116                     test = open_tests.pop(testname)
 117                 except KeyError:
 118                     statistics['TESTS_ERROR']+=1
 119                     exitcode = 1
 120                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"Test was never started"))
 121                 else:
 122                     statistics['TESTS_UNEXPECTED_OK']+=1
 123                     msg_ops.addUnexpectedSuccess(test, remote_error)
 124                     exitcode = 1
 125             elif result in ("failure", "fail"):
 126                 try:
 127                     test = open_tests.pop(testname)
 128                 except KeyError:
 129                     statistics['TESTS_ERROR']+=1
 130                     exitcode = 1
 131                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"Test was never started"))
 132                 else:
 133                     statistics['TESTS_UNEXPECTED_FAIL']+=1
 134                     exitcode = 1
 135                     msg_ops.addFailure(test, remote_error)
 136             elif result == "skip":
 137                 statistics['TESTS_SKIP']+=1
 138                 # Allow tests to be skipped without prior announcement of test
 139                 try:
 140                     test = open_tests.pop(testname)
 141                 except KeyError:
 142                     test = subunit.RemotedTestCase(testname)
 143                 msg_ops.addSkip(test, reason)
 144             elif result == "error":
 145                 statistics['TESTS_ERROR']+=1
 146                 exitcode = 1
 147                 try:
 148                     test = open_tests.pop(testname)
 149                 except KeyError:
 150                     test = subunit.RemotedTestCase(testname)
 151                 msg_ops.addError(test, remote_error)
 152             elif result == "skip-testsuite":
 153                 msg_ops.skip_testsuite(testname)
 154             elif result == "testsuite-success":
 155                 msg_ops.end_testsuite(testname, "success", reason)
 156             elif result == "testsuite-failure":
 157                 msg_ops.end_testsuite(testname, "failure", reason)
 158                 exitcode = 1
 159             elif result == "testsuite-xfail":
 160                 msg_ops.end_testsuite(testname, "xfail", reason)
 161             elif result == "testsuite-uxsuccess":
 162                 msg_ops.end_testsuite(testname, "uxsuccess", reason)
 163                 exitcode = 1
 164             elif result == "testsuite-error":
 165                 msg_ops.end_testsuite(testname, "error", reason)
 166                 exitcode = 1
 167             else:
 168                 raise AssertionError("Recognized but unhandled result %r" %
 169                     result)
 170         elif command == "testsuite":
 171             msg_ops.start_testsuite(arg.strip())
 172         elif command == "progress":
 173             arg = arg.strip()
 174             if arg == "pop":
 175                 msg_ops.progress(None, subunit.PROGRESS_POP)
 176             elif arg == "push":
 177                 msg_ops.progress(None, subunit.PROGRESS_PUSH)
 178             elif arg[0] in '+-':
 179                 msg_ops.progress(int(arg), subunit.PROGRESS_CUR)
 180             else:
 181                 msg_ops.progress(int(arg), subunit.PROGRESS_SET)
 182         else:
 183             msg_ops.output_msg(l)
 184
 185     while open_tests:
 186         test = subunit.RemotedTestCase(open_tests.popitem()[1])
 187         msg_ops.addError(test, subunit.RemoteError(u"was started but never finished!"))
 188         statistics['TESTS_ERROR']+=1
 189         exitcode = 1
 190
 191     return exitcode
 192
 193
 194 class SubunitOps(TestProtocolClient,TestsuiteEnabledTestResult):
 195
 196     def progress(self, count, whence):
 197         if whence == subunit.PROGRESS_POP:
 198             self._stream.write("progress: pop\n")
 199         elif whence == subunit.PROGRESS_PUSH:
 200             self._stream.write("progress: push\n")
 201         elif whence == subunit.PROGRESS_SET:
 202             self._stream.write("progress: %d\n" % count)
 203         elif whence == subunit.PROGRESS_CUR:
 204             raise NotImplementedError
 205
 206     # The following are Samba extensions:
 207     def start_testsuite(self, name):
 208         self._stream.write("testsuite: %s\n" % name)
 209
 210     def skip_testsuite(self, name, reason=None):
 211         if reason:
 212             self._stream.write("skip-testsuite: %s [\n%s\n]\n" % (name, reason))
 213         else:
 214             self._stream.write("skip-testsuite: %s\n" % name)
 215
 216     def end_testsuite(self, name, result, reason=None):
 217         if reason:
 218             self._stream.write("testsuite-%s: %s [\n%s\n]\n" % (result, name, reason))
 219         else:
 220             self._stream.write("testsuite-%s: %s\n" % (result, name))
 221
 222     def output_msg(self, msg):
 223         self._stream.write(msg)
 224
 225
 226 def read_test_regexes(name):
 227     ret = {}
 228     f = open(name, 'r')
 229     try:
 230         for l in f:
 231             l = l.strip()
 232             if l == "" or l[0] == "#":
 233                 continue
 234             if "#" in l:
 235                 (regex, reason) = l.split("#", 1)
 236                 ret[regex.strip()] = reason.strip()
 237             else:
 238                 ret[l] = None
 239     finally:
 240         f.close()
 241     return ret
 242
 243
 244 def find_in_list(regexes, fullname):
 245     for regex, reason in regexes.iteritems():
 246         if re.match(regex, fullname):
 247             if reason is None:
 248                 return ""
 249             return reason
 250     return None
 251
 252
 253 class ImmediateFail(Exception):
 254     """Raised to abort immediately."""
 255
 256     def __init__(self):
 257         super(ImmediateFail, self).__init__("test failed and fail_immediately set")
 258
 259
 260 class FilterOps(unittest.TestResult):
 261
 262     def __init__(self, *args, **kwargs):
 263         super(FilterOps, self).__init__(*args, **kwargs)
 264         self.failfast = False
 265
 266     def control_msg(self, msg):
 267         pass # We regenerate control messages, so ignore this
 268
 269     def time(self, time):
 270         self._ops.time(time)
 271
 272     def progress(self, delta, whence):
 273         self._ops.progress(delta, whence)
 274
 275     def output_msg(self, msg):
 276         if self.output is None:
 277             sys.stdout.write(msg)
 278         else:
 279             self.output+=msg
 280
 281     def startTest(self, test):
 282         self.seen_output = True
 283         test = self._add_prefix(test)
 284         if self.strip_ok_output:
 285            self.output = ""
 286
 287         self._ops.startTest(test)
 288
 289     def _add_prefix(self, test):
 290         prefix = ""
 291         suffix = ""
 292         if self.prefix is not None:
 293             prefix = self.prefix
 294         if self.suffix is not None:
 295             suffix = self.suffix
 296
 297         return subunit.RemotedTestCase(prefix + test.id() + suffix)
 298
 299     def addError(self, test, err=None):
 300         test = self._add_prefix(test)
 301         self.error_added+=1
 302         self.total_error+=1
 303         self._ops.addError(test, err)
 304         self.output = None
 305         if self.fail_immediately:
 306             raise ImmediateFail()
 307
 308     def addSkip(self, test, reason=None):
 309         self.seen_output = True
 310         test = self._add_prefix(test)
 311         self._ops.addSkip(test, reason)
 312         self.output = None
 313
 314     def addExpectedFailure(self, test, err=None):
 315         test = self._add_prefix(test)
 316         self._ops.addExpectedFailure(test, err)
 317         self.output = None
 318
 319     def addUnexpectedSuccess(self, test, err=None):
 320         test = self._add_prefix(test)
 321         self.uxsuccess_added+=1
 322         self.total_uxsuccess+=1
 323         self._ops.addUnexpectedSuccess(test, err)
 324         if self.output:
 325             self._ops.output_msg(self.output)
 326         self.output = None
 327         if self.fail_immediately:
 328             raise ImmediateFail()
 329
 330     def addFailure(self, test, err=None):
 331         test = self._add_prefix(test)
 332         xfail_reason = find_in_list(self.expected_failures, test.id())
 333         if xfail_reason is None:
 334             xfail_reason = find_in_list(self.flapping, test.id())
 335         if xfail_reason is not None:
 336             self.xfail_added+=1
 337             self.total_xfail+=1
 338             self._ops.addExpectedFailure(test, err)
 339         else:
 340             self.fail_added+=1
 341             self.total_fail+=1
 342             self._ops.addFailure(test, err)
 343             if self.output:
 344                 self._ops.output_msg(self.output)
 345             if self.fail_immediately:
 346                 raise ImmediateFail()
 347         self.output = None
 348
 349     def addSuccess(self, test):
 350         test = self._add_prefix(test)
 351         xfail_reason = find_in_list(self.expected_failures, test.id())
 352         if xfail_reason is not None:
 353             self.uxsuccess_added += 1
 354             self.total_uxsuccess += 1
 355             self._ops.addUnexpectedSuccess(test, subunit.RemoteError(xfail_reason))
 356             if self.output:
 357                 self._ops.output_msg(self.output)
 358             if self.fail_immediately:
 359                 raise ImmediateFail()
 360         else:
 361             self._ops.addSuccess(test)
 362         self.output = None
 363
 364     def skip_testsuite(self, name, reason=None):
 365         self._ops.skip_testsuite(name, reason)
 366
 367     def start_testsuite(self, name):
 368         self._ops.start_testsuite(name)
 369         self.error_added = 0
 370         self.fail_added = 0
 371         self.xfail_added = 0
 372         self.uxsuccess_added = 0
 373
 374     def end_testsuite(self, name, result, reason=None):
 375         xfail = False
 376
 377         if self.xfail_added > 0:
 378             xfail = True
 379         if self.fail_added > 0 or self.error_added > 0 or self.uxsuccess_added > 0:
 380             xfail = False
 381
 382         if xfail and result in ("fail", "failure"):
 383             result = "xfail"
 384
 385         if self.uxsuccess_added > 0 and result != "uxsuccess":
 386             result = "uxsuccess"
 387             if reason is None:
 388                 reason = "Subunit/Filter Reason"
 389             reason += "\n uxsuccess[%d]" % self.uxsuccess_added
 390
 391         if self.fail_added > 0 and result != "failure":
 392             result = "failure"
 393             if reason is None:
 394                 reason = "Subunit/Filter Reason"
 395             reason += "\n failures[%d]" % self.fail_added
 396
 397         if self.error_added > 0 and result != "error":
 398             result = "error"
 399             if reason is None:
 400                 reason = "Subunit/Filter Reason"
 401             reason += "\n errors[%d]" % self.error_added
 402
 403         self._ops.end_testsuite(name, result, reason)
 404         if result not in ("success", "xfail"):
 405             if self.output:
 406                 self._ops.output_msg(self.output)
 407             if self.fail_immediately:
 408                 raise ImmediateFail()
 409         self.output = None
 410
 411     def __init__(self, out, prefix=None, suffix=None, expected_failures=None,
 412                  strip_ok_output=False, fail_immediately=False,
 413                  flapping=None):
 414         self._ops = out
 415         self.seen_output = False
 416         self.output = None
 417         self.prefix = prefix
 418         self.suffix = suffix
 419         if expected_failures is not None:
 420             self.expected_failures = expected_failures
 421         else:
 422             self.expected_failures = {}
 423         if flapping is not None:
 424             self.flapping = flapping
 425         else:
 426             self.flapping = {}
 427         self.strip_ok_output = strip_ok_output
 428         self.xfail_added = 0
 429         self.fail_added = 0
 430         self.uxsuccess_added = 0
 431         self.total_xfail = 0
 432         self.total_error = 0
 433         self.total_fail = 0
 434         self.total_uxsuccess = 0
 435         self.error_added = 0
 436         self.fail_immediately = fail_immediately
 437
 438
 439 class PlainFormatter(TestsuiteEnabledTestResult):
 440
 441     def __init__(self, verbose, immediate, statistics,
 442             totaltests=None):
 443         super(PlainFormatter, self).__init__()
 444         self.verbose = verbose
 445         self.immediate = immediate
 446         self.statistics = statistics
 447         self.start_time = None
 448         self.test_output = {}
 449         self.suitesfailed = []
 450         self.suites_ok = 0
 451         self.skips = {}
 452         self.index = 0
 453         self.name = None
 454         self._progress_level = 0
 455         self.totalsuites = totaltests
 456         self.last_time = None
 457
 458     @staticmethod
 459     def _format_time(delta):
 460         minutes, seconds = divmod(delta.seconds, 60)
 461         hours, minutes = divmod(minutes, 60)
 462         ret = ""
 463         if hours:
 464             ret += "%dh" % hours
 465         if minutes:
 466             ret += "%dm" % minutes
 467         ret += "%ds" % seconds
 468         return ret
 469
 470     def progress(self, offset, whence):
 471         if whence == subunit.PROGRESS_POP:
 472             self._progress_level -= 1
 473         elif whence == subunit.PROGRESS_PUSH:
 474             self._progress_level += 1
 475         elif whence == subunit.PROGRESS_SET:
 476             if self._progress_level == 0:
 477                 self.totalsuites = offset
 478         elif whence == subunit.PROGRESS_CUR:
 479             raise NotImplementedError
 480
 481     def time(self, dt):
 482         if self.start_time is None:
 483             self.start_time = dt
 484         self.last_time = dt
 485
 486     def start_testsuite(self, name):
 487         self.index += 1
 488         self.name = name
 489
 490         if not self.verbose:
 491             self.test_output[name] = ""
 492
 493         total_tests = (self.statistics['TESTS_EXPECTED_OK'] +
 494                        self.statistics['TESTS_EXPECTED_FAIL'] +
 495                        self.statistics['TESTS_ERROR'] +
 496                        self.statistics['TESTS_UNEXPECTED_FAIL'] +
 497                        self.statistics['TESTS_UNEXPECTED_OK'])
 498
 499         out = "[%d(%d)" % (self.index, total_tests)
 500         if self.totalsuites is not None:
 501             out += "/%d" % self.totalsuites
 502         if self.start_time is not None:
 503             out += " at " + self._format_time(self.last_time - self.start_time)
 504         if self.suitesfailed:
 505             out += ", %d errors" % (len(self.suitesfailed),)
 506         out += "] %s" % name
 507         if self.immediate:
 508             sys.stdout.write(out + "\n")
 509         else:
 510             sys.stdout.write(out + ": ")
 511
 512     def output_msg(self, output):
 513         if self.verbose:
 514             sys.stdout.write(output)
 515         elif self.name is not None:
 516             self.test_output[self.name] += output
 517         else:
 518             sys.stdout.write(output)
 519
 520     def control_msg(self, output):
 521         pass
 522
 523     def end_testsuite(self, name, result, reason):
 524         out = ""
 525         unexpected = False
 526
 527         if not name in self.test_output:
 528             print "no output for name[%s]" % name
 529
 530         if result in ("success", "xfail"):
 531             self.suites_ok+=1
 532         else:
 533             self.output_msg("ERROR: Testsuite[%s]\n" % name)
 534             if reason is not None:
 535                 self.output_msg("REASON: %s\n" % (reason,))
 536             self.suitesfailed.append(name)
 537             if self.immediate and not self.verbose and name in self.test_output:
 538                 out += self.test_output[name]
 539             unexpected = True
 540
 541         if not self.immediate:
 542             if not unexpected:
 543                 out += " ok\n"
 544             else:
 545                 out += " " + result.upper() + "\n"
 546
 547         sys.stdout.write(out)
 548
 549     def startTest(self, test):
 550         pass
 551
 552     def addSuccess(self, test):
 553         self.end_test(test.id(), "success", False)
 554
 555     def addError(self, test, err=None):
 556         self.end_test(test.id(), "error", True, err)
 557
 558     def addFailure(self, test, err=None):
 559         self.end_test(test.id(), "failure", True, err)
 560
 561     def addSkip(self, test, reason=None):
 562         self.end_test(test.id(), "skip", False, reason)
 563
 564     def addExpectedFailure(self, test, err=None):
 565         self.end_test(test.id(), "xfail", False, err)
 566
 567     def addUnexpectedSuccess(self, test):
 568         self.end_test(test.id(), "uxsuccess", True)
 569
 570     def end_test(self, testname, result, unexpected, err=None):
 571         if not unexpected:
 572             self.test_output[self.name] = ""
 573             if not self.immediate:
 574                 sys.stdout.write({
 575                     'failure': 'f',
 576                     'xfail': 'X',
 577                     'skip': 's',
 578                     'success': '.'}.get(result, "?(%s)" % result))
 579             return
 580
 581         if not self.name in self.test_output:
 582             self.test_output[self.name] = ""
 583
 584         self.test_output[self.name] += "UNEXPECTED(%s): %s\n" % (result, testname)
 585         if err is not None:
 586             self.test_output[self.name] += "REASON: %s\n" % str(err[1]).strip()
 587
 588         if self.immediate and not self.verbose:
 589             sys.stdout.write(self.test_output[self.name])
 590             self.test_output[self.name] = ""
 591
 592         if not self.immediate:
 593             sys.stdout.write({
 594                'error': 'E',
 595                'failure': 'F',
 596                'uxsuccess': 'U',
 597                'success': 'S'}.get(result, "?"))
 598
 599     def write_summary(self, path):
 600         f = open(path, 'w+')
 601
 602         if self.suitesfailed:
 603             f.write("= Failed tests =\n")
 604
 605             for suite in self.suitesfailed:
 606                 f.write("== %s ==\n" % suite)
 607                 if suite in self.test_output:
 608                     f.write(self.test_output[suite]+"\n\n")
 609
 610             f.write("\n")
 611
 612         if not self.immediate and not self.verbose:
 613             for suite in self.suitesfailed:
 614                 print "=" * 78
 615                 print "FAIL: %s" % suite
 616                 if suite in self.test_output:
 617                     print self.test_output[suite]
 618                 print ""
 619
 620         f.write("= Skipped tests =\n")
 621         for reason in self.skips.keys():
 622             f.write(reason + "\n")
 623             for name in self.skips[reason]:
 624                 f.write("\t%s\n" % name)
 625             f.write("\n")
 626         f.close()
 627
 628         if (not self.suitesfailed and
 629             not self.statistics['TESTS_UNEXPECTED_FAIL'] and
 630             not self.statistics['TESTS_UNEXPECTED_OK'] and
 631             not self.statistics['TESTS_ERROR']):
 632             ok = (self.statistics['TESTS_EXPECTED_OK'] +
 633                   self.statistics['TESTS_EXPECTED_FAIL'])
 634             print "\nALL OK (%d tests in %d testsuites)" % (ok, self.suites_ok)
 635         else:
 636             print "\nFAILED (%d failures, %d errors and %d unexpected successes in %d testsuites)" % (
 637                 self.statistics['TESTS_UNEXPECTED_FAIL'],
 638                 self.statistics['TESTS_ERROR'],
 639                 self.statistics['TESTS_UNEXPECTED_OK'],
 640                 len(self.suitesfailed))
 641
 642     def skip_testsuite(self, name, reason="UNKNOWN"):
 643         self.skips.setdefault(reason, []).append(name)
 644         if self.totalsuites:
 645             self.totalsuites-=1