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 import subunit
  23 import subunit.iso8601
  24 import testtools
  25
  26 VALID_RESULTS = ['success', 'successful', 'failure', 'fail', 'skip', 'knownfail', 'error', 'xfail', 'skip-testsuite', 'testsuite-failure', 'testsuite-xfail', 'testsuite-success', 'testsuite-error']
  27
  28 class TestsuiteEnabledTestResult(testtools.testresult.TestResult):
  29
  30     def start_testsuite(self, name):
  31         raise NotImplementedError(self.start_testsuite)
  32
  33
  34 def parse_results(msg_ops, statistics, fh):
  35     expected_fail = 0
  36     open_tests = {}
  37
  38     while fh:
  39         l = fh.readline()
  40         if l == "":
  41             break
  42         parts = l.split(None, 1)
  43         if not len(parts) == 2 or not l.startswith(parts[0]):
  44             msg_ops.output_msg(l)
  45             continue
  46         command = parts[0].rstrip(":")
  47         arg = parts[1]
  48         if command in ("test", "testing"):
  49             msg_ops.control_msg(l)
  50             name = arg.rstrip()
  51             test = subunit.RemotedTestCase(name)
  52             if name in open_tests:
  53                 msg_ops.addError(open_tests.pop(name), subunit.RemoteError(u"Test already running"))
  54             msg_ops.startTest(test)
  55             open_tests[name] = test
  56         elif command == "time":
  57             msg_ops.control_msg(l)
  58             try:
  59                 dt = subunit.iso8601.parse_date(arg.rstrip("\n"))
  60             except TypeError, e:
  61                 print "Unable to parse time line: %s" % arg.rstrip("\n")
  62             else:
  63                 msg_ops.time(dt)
  64         elif command in VALID_RESULTS:
  65             msg_ops.control_msg(l)
  66             result = command
  67             grp = re.match("(.*?)( \[)?([ \t]*)( multipart)?\n", arg)
  68             (testname, hasreason) = (grp.group(1), grp.group(2))
  69             if hasreason:
  70                 reason = ""
  71                 # reason may be specified in next lines
  72                 terminated = False
  73                 while fh:
  74                     l = fh.readline()
  75                     if l == "":
  76                         break
  77                     msg_ops.control_msg(l)
  78                     if l == "]\n":
  79                         terminated = True
  80                         break
  81                     else:
  82                         reason += l
  83
  84                 remote_error = subunit.RemoteError(reason.decode("utf-8"))
  85
  86                 if not terminated:
  87                     statistics['TESTS_ERROR']+=1
  88                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"reason (%s) interrupted" % result))
  89                     return 1
  90             else:
  91                 reason = None
  92                 remote_error = subunit.RemoteError(u"No reason specified")
  93             if result in ("success", "successful"):
  94                 try:
  95                     test = open_tests.pop(testname)
  96                 except KeyError:
  97                     statistics['TESTS_ERROR']+=1
  98                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"Test was never started"))
  99                 else:
 100                     statistics['TESTS_EXPECTED_OK']+=1
 101                     msg_ops.addSuccess(test)
 102             elif result in ("xfail", "knownfail"):
 103                 try:
 104                     test = open_tests.pop(testname)
 105                 except KeyError:
 106                     statistics['TESTS_ERROR']+=1
 107                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"Test was never started"))
 108                 else:
 109                     statistics['TESTS_EXPECTED_FAIL']+=1
 110                     msg_ops.addExpectedFailure(test, remote_error)
 111                     expected_fail+=1
 112             elif result in ("failure", "fail"):
 113                 try:
 114                     test = open_tests.pop(testname)
 115                 except KeyError:
 116                     statistics['TESTS_ERROR']+=1
 117                     msg_ops.addError(subunit.RemotedTestCase(testname), subunit.RemoteError(u"Test was never started"))
 118                 else:
 119                     statistics['TESTS_UNEXPECTED_FAIL']+=1
 120                     msg_ops.addFailure(test, remote_error)
 121             elif result == "skip":
 122                 statistics['TESTS_SKIP']+=1
 123                 # Allow tests to be skipped without prior announcement of test
 124                 try:
 125                     test = open_tests.pop(testname)
 126                 except KeyError:
 127                     test = subunit.RemotedTestCase(testname)
 128                 msg_ops.addSkip(test, reason)
 129             elif result == "error":
 130                 statistics['TESTS_ERROR']+=1
 131                 try:
 132                     test = open_tests.pop(testname)
 133                 except KeyError:
 134                     test = subunit.RemotedTestCase(testname)
 135                 msg_ops.addError(test, remote_error)
 136             elif result == "skip-testsuite":
 137                 msg_ops.skip_testsuite(testname)
 138             elif result == "testsuite-success":
 139                 msg_ops.end_testsuite(testname, "success", reason)
 140             elif result == "testsuite-failure":
 141                 msg_ops.end_testsuite(testname, "failure", reason)
 142             elif result == "testsuite-xfail":
 143                 msg_ops.end_testsuite(testname, "xfail", reason)
 144             elif result == "testsuite-error":
 145                 msg_ops.end_testsuite(testname, "error", reason)
 146             else:
 147                 raise AssertionError("Recognized but unhandled result %r" %
 148                     result)
 149         elif command == "testsuite":
 150             msg_ops.start_testsuite(arg.strip())
 151         elif command == "progress":
 152             arg = arg.strip()
 153             if arg == "pop":
 154                 msg_ops.progress(None, subunit.PROGRESS_POP)
 155             elif arg == "push":
 156                 msg_ops.progress(None, subunit.PROGRESS_PUSH)
 157             elif arg[0] in '+-':
 158                 msg_ops.progress(int(arg), subunit.PROGRESS_CUR)
 159             else:
 160                 msg_ops.progress(int(arg), subunit.PROGRESS_SET)
 161         else:
 162             msg_ops.output_msg(l)
 163
 164     while open_tests:
 165         test = subunit.RemotedTestCase(open_tests.popitem()[1])
 166         msg_ops.addError(test, subunit.RemoteError(u"was started but never finished!"))
 167         statistics['TESTS_ERROR']+=1
 168
 169     if statistics['TESTS_ERROR'] > 0:
 170         return 1
 171     if statistics['TESTS_UNEXPECTED_FAIL'] > 0:
 172         return 1
 173     return 0
 174
 175
 176 class SubunitOps(subunit.TestProtocolClient,TestsuiteEnabledTestResult):
 177
 178     # The following are Samba extensions:
 179     def start_testsuite(self, name):
 180         self._stream.write("testsuite: %s\n" % name)
 181
 182     def skip_testsuite(self, name, reason=None):
 183         if reason:
 184             self._stream.write("skip-testsuite: %s [\n%s\n]\n" % (name, reason))
 185         else:
 186             self._stream.write("skip-testsuite: %s\n" % name)
 187
 188     def end_testsuite(self, name, result, reason=None):
 189         if reason:
 190             self._stream.write("testsuite-%s: %s [\n%s\n]\n" % (result, name, reason))
 191         else:
 192             self._stream.write("testsuite-%s: %s\n" % (result, name))
 193
 194     def output_msg(self, msg):
 195         self._stream.write(msg)
 196
 197
 198 def read_test_regexes(name):
 199     ret = {}
 200     f = open(name, 'r')
 201     try:
 202         for l in f:
 203             l = l.strip()
 204             if l == "" or l[0] == "#":
 205                 continue
 206             if "#" in l:
 207                 (regex, reason) = l.split("#", 1)
 208                 ret[regex.strip()] = reason.strip()
 209             else:
 210                 ret[l] = None
 211     finally:
 212         f.close()
 213     return ret
 214
 215
 216 def find_in_list(regexes, fullname):
 217     for regex, reason in regexes.iteritems():
 218         if re.match(regex, fullname):
 219             if reason is None:
 220                 return ""
 221             return reason
 222     return None
 223
 224
 225 class ImmediateFail(Exception):
 226     """Raised to abort immediately."""
 227
 228     def __init__(self):
 229         super(ImmediateFail, self).__init__("test failed and fail_immediately set")
 230
 231
 232 class FilterOps(testtools.testresult.TestResult):
 233
 234     def control_msg(self, msg):
 235         pass # We regenerate control messages, so ignore this
 236
 237     def time(self, time):
 238         self._ops.time(time)
 239
 240     def progress(self, delta, whence):
 241         self._ops.progress(delta, whence)
 242
 243     def output_msg(self, msg):
 244         if self.output is None:
 245             sys.stdout.write(msg)
 246         else:
 247             self.output+=msg
 248
 249     def startTest(self, test):
 250         test = self._add_prefix(test)
 251         if self.strip_ok_output:
 252            self.output = ""
 253
 254         self._ops.startTest(test)
 255
 256     def _add_prefix(self, test):
 257         if self.prefix is not None:
 258             return subunit.RemotedTestCase(self.prefix + test.id())
 259         else:
 260             return test
 261
 262     def addError(self, test, details=None):
 263         test = self._add_prefix(test)
 264         self.error_added+=1
 265         self.total_error+=1
 266         self._ops.addError(test, details)
 267         self.output = None
 268         if self.fail_immediately:
 269             raise ImmediateFail()
 270
 271     def addSkip(self, test, details=None):
 272         test = self._add_prefix(test)
 273         self._ops.addSkip(test, details)
 274         self.output = None
 275
 276     def addExpectedFailure(self, test, details=None):
 277         test = self._add_prefix(test)
 278         self._ops.addExpectedFailure(test, details)
 279         self.output = None
 280
 281     def addFailure(self, test, details=None):
 282         test = self._add_prefix(test)
 283         xfail_reason = find_in_list(self.expected_failures, test.id())
 284         if xfail_reason is not None:
 285             self.xfail_added+=1
 286             self.total_xfail+=1
 287             if details is not None:
 288                 details = subunit.RemoteError(unicode(details[1]) + xfail_reason.decode("utf-8"))
 289             else:
 290                 details = subunit.RemoteError(xfail_reason.decode("utf-8"))
 291             self._ops.addExpectedFailure(test, details)
 292         else:
 293             self.fail_added+=1
 294             self.total_fail+=1
 295             self._ops.addFailure(test, details)
 296             if self.output:
 297                 self._ops.output_msg(self.output)
 298             if self.fail_immediately:
 299                 raise ImmediateFail()
 300         self.output = None
 301
 302     def addSuccess(self, test, details=None):
 303         test = self._add_prefix(test)
 304         self._ops.addSuccess(test, details)
 305         self.output = None
 306
 307     def skip_testsuite(self, name, reason=None):
 308         self._ops.skip_testsuite(name, reason)
 309
 310     def start_testsuite(self, name):
 311         self._ops.start_testsuite(name)
 312         self.error_added = 0
 313         self.fail_added = 0
 314         self.xfail_added = 0
 315
 316     def end_testsuite(self, name, result, reason=None):
 317         xfail = False
 318
 319         if self.xfail_added > 0:
 320             xfail = True
 321         if self.fail_added > 0 or self.error_added > 0:
 322             xfail = False
 323
 324         if xfail and result in ("fail", "failure"):
 325             result = "xfail"
 326
 327         if self.fail_added > 0 and result != "failure":
 328             result = "failure"
 329             if reason is None:
 330                 reason = "Subunit/Filter Reason"
 331             reason += "\n failures[%d]" % self.fail_added
 332
 333         if self.error_added > 0 and result != "error":
 334             result = "error"
 335             if reason is None:
 336                 reason = "Subunit/Filter Reason"
 337             reason += "\n errors[%d]" % self.error_added
 338
 339         self._ops.end_testsuite(name, result, reason)
 340
 341     def __init__(self, out, prefix=None, expected_failures=None,
 342                  strip_ok_output=False, fail_immediately=False):
 343         self._ops = out
 344         self.output = None
 345         self.prefix = prefix
 346         if expected_failures is not None:
 347             self.expected_failures = expected_failures
 348         else:
 349             self.expected_failures = {}
 350         self.strip_ok_output = strip_ok_output
 351         self.xfail_added = 0
 352         self.fail_added = 0
 353         self.total_xfail = 0
 354         self.total_error = 0
 355         self.total_fail = 0
 356         self.error_added = 0
 357         self.fail_immediately = fail_immediately
 358
 359
 360 class PlainFormatter(TestsuiteEnabledTestResult):
 361
 362     def __init__(self, verbose, immediate, statistics,
 363             totaltests=None):
 364         super(PlainFormatter, self).__init__()
 365         self.verbose = verbose
 366         self.immediate = immediate
 367         self.statistics = statistics
 368         self.start_time = None
 369         self.test_output = {}
 370         self.suitesfailed = []
 371         self.suites_ok = 0
 372         self.skips = {}
 373         self.index = 0
 374         self.name = None
 375         self._progress_level = 0
 376         self.totalsuites = totaltests
 377         self.last_time = None
 378
 379     @staticmethod
 380     def _format_time(delta):
 381         minutes, seconds = divmod(delta.seconds, 60)
 382         hours, minutes = divmod(minutes, 60)
 383         ret = ""
 384         if hours:
 385             ret += "%dh" % hours
 386         if minutes:
 387             ret += "%dm" % minutes
 388         ret += "%ds" % seconds
 389         return ret
 390
 391     def progress(self, offset, whence):
 392         if whence == subunit.PROGRESS_POP:
 393             self._progress_level -= 1
 394         elif whence == subunit.PROGRESS_PUSH:
 395             self._progress_level += 1
 396         elif whence == subunit.PROGRESS_SET:
 397             if self._progress_level == 0:
 398                 self.totalsuites = offset
 399         elif whence == subunit.PROGRESS_CUR:
 400             raise NotImplementedError
 401
 402     def time(self, dt):
 403         if self.start_time is None:
 404             self.start_time = dt
 405         self.last_time = dt
 406
 407     def start_testsuite(self, name):
 408         self.index += 1
 409         self.name = name
 410
 411         if not self.verbose:
 412             self.test_output[name] = ""
 413
 414         out = "[%d" % self.index
 415         if self.totalsuites is not None:
 416             out += "/%d" % self.totalsuites
 417         if self.start_time is not None:
 418             out += " in " + self._format_time(self.last_time - self.start_time)
 419         if self.suitesfailed:
 420             out += ", %d errors" % (len(self.suitesfailed),)
 421         out += "] %s" % name
 422         if self.immediate:
 423             sys.stdout.write(out + "\n")
 424         else:
 425             sys.stdout.write(out + ": ")
 426
 427     def output_msg(self, output):
 428         if self.verbose:
 429             sys.stdout.write(output)
 430         elif self.name is not None:
 431             self.test_output[self.name] += output
 432         else:
 433             sys.stdout.write(output)
 434
 435     def control_msg(self, output):
 436         pass
 437
 438     def end_testsuite(self, name, result, reason):
 439         out = ""
 440         unexpected = False
 441
 442         if not name in self.test_output:
 443             print "no output for name[%s]" % name
 444
 445         if result in ("success", "xfail"):
 446             self.suites_ok+=1
 447         else:
 448             self.output_msg("ERROR: Testsuite[%s]\n" % name)
 449             if reason is not None:
 450                 self.output_msg("REASON: %s\n" % (reason,))
 451             self.suitesfailed.append(name)
 452             if self.immediate and not self.verbose and name in self.test_output:
 453                 out += self.test_output[name]
 454             unexpected = True
 455
 456         if not self.immediate:
 457             if not unexpected:
 458                 out += " ok\n"
 459             else:
 460                 out += " " + result.upper() + "\n"
 461
 462         sys.stdout.write(out)
 463
 464     def startTest(self, test):
 465         pass
 466
 467     def addSuccess(self, test):
 468         self.end_test(test.id(), "success", False)
 469
 470     def addError(self, test, details=None):
 471         self.end_test(test.id(), "error", True, details)
 472
 473     def addFailure(self, test, details=None):
 474         self.end_test(test.id(), "failure", True, details)
 475
 476     def addSkip(self, test, details=None):
 477         self.end_test(test.id(), "skip", False, details)
 478
 479     def addExpectedFail(self, test, details=None):
 480         self.end_test(test.id(), "xfail", False, details)
 481
 482     def end_test(self, testname, result, unexpected, reason=None):
 483         if not unexpected:
 484             self.test_output[self.name] = ""
 485             if not self.immediate:
 486                 sys.stdout.write({
 487                     'failure': 'f',
 488                     'xfail': 'X',
 489                     'skip': 's',
 490                     'success': '.'}.get(result, "?(%s)" % result))
 491             return
 492
 493         if not self.name in self.test_output:
 494             self.test_output[self.name] = ""
 495
 496         self.test_output[self.name] += "UNEXPECTED(%s): %s\n" % (result, testname)
 497         if reason is not None:
 498             self.test_output[self.name] += "REASON: %s\n" % (reason[1].message.encode("utf-8").strip(),)
 499
 500         if self.immediate and not self.verbose:
 501             print self.test_output[self.name]
 502             self.test_output[self.name] = ""
 503
 504         if not self.immediate:
 505             sys.stdout.write({
 506                'error': 'E',
 507                'failure': 'F',
 508                'success': 'S'}.get(result, "?"))
 509
 510     def write_summary(self, path):
 511         f = open(path, 'w+')
 512
 513         if self.suitesfailed:
 514             f.write("= Failed tests =\n")
 515
 516             for suite in self.suitesfailed:
 517                 f.write("== %s ==\n" % suite)
 518                 if suite in self.test_output:
 519                     f.write(self.test_output[suite]+"\n\n")
 520
 521             f.write("\n")
 522
 523         if not self.immediate and not self.verbose:
 524             for suite in self.suitesfailed:
 525                 print "=" * 78
 526                 print "FAIL: %s" % suite
 527                 if suite in self.test_output:
 528                     print self.test_output[suite]
 529                 print ""
 530
 531         f.write("= Skipped tests =\n")
 532         for reason in self.skips.keys():
 533             f.write(reason + "\n")
 534             for name in self.skips[reason]:
 535                 f.write("\t%s\n" % name)
 536             f.write("\n")
 537         f.close()
 538
 539         if (not self.suitesfailed and
 540             not self.statistics['TESTS_UNEXPECTED_FAIL'] and
 541             not self.statistics['TESTS_ERROR']):
 542             ok = (self.statistics['TESTS_EXPECTED_OK'] +
 543                   self.statistics['TESTS_EXPECTED_FAIL'])
 544             print "\nALL OK (%d tests in %d testsuites)" % (ok, self.suites_ok)
 545         else:
 546             print "\nFAILED (%d failures and %d errors in %d testsuites)" % (
 547                 self.statistics['TESTS_UNEXPECTED_FAIL'],
 548                 self.statistics['TESTS_ERROR'],
 549                 len(self.suitesfailed))
 550
 551     def skip_testsuite(self, name, reason="UNKNOWN"):
 552         self.skips.setdefault(reason, []).append(name)
 553         if self.totalsuites:
 554             self.totalsuites-=1
 555
 556
 557 class TestProtocolServer(subunit.TestProtocolServer):