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 time
  24
  25 VALID_RESULTS = ['success', 'successful', 'failure', 'fail', 'skip', 'knownfail', 'error', 'xfail', 'skip-testsuite', 'testsuite-failure', 'testsuite-xfail', 'testsuite-success', 'testsuite-error']
  26
  27 def parse_results(msg_ops, statistics, fh):
  28     expected_fail = 0
  29     open_tests = []
  30
  31     while fh:
  32         l = fh.readline()
  33         if l == "":
  34             break
  35         parts = l.split(None, 1)
  36         if not len(parts) == 2 or not l.startswith(parts[0]):
  37             msg_ops.output_msg(l)
  38             continue
  39         command = parts[0].rstrip(":")
  40         arg = parts[1]
  41         if command in ("test", "testing"):
  42             msg_ops.control_msg(l)
  43             msg_ops.start_test(arg.rstrip())
  44             open_tests.append(arg.rstrip())
  45         elif command == "time":
  46             msg_ops.control_msg(l)
  47             grp = re.match(
  48                 "(\d+)-(\d+)-(\d+) (\d+):(\d+):(\d+)\n", arg)
  49             msg_ops.report_time(time.mktime((int(grp.group(1)), int(grp.group(2)), int(grp.group(3)), int(grp.group(4)), int(grp.group(5)), int(grp.group(6)), 0, 0, 0)))
  50         elif command in VALID_RESULTS:
  51             msg_ops.control_msg(l)
  52             result = command
  53             grp = re.match("(.*?)( \[)?([ \t]*)( multipart)?\n", arg)
  54             (testname, hasreason) = (grp.group(1), grp.group(2))
  55             if hasreason:
  56                 reason = ""
  57                 # reason may be specified in next lines
  58                 terminated = False
  59                 while fh:
  60                     l = fh.readline()
  61                     if l == "":
  62                         break
  63                     msg_ops.control_msg(l)
  64                     if l == "]\n":
  65                         terminated = True
  66                         break
  67                     else:
  68                         reason += l
  69
  70                 if not terminated:
  71                     statistics['TESTS_ERROR']+=1
  72                     msg_ops.end_test(testname, "error", True,
  73                                        "reason (%s) interrupted" % result)
  74                     return 1
  75             else:
  76                 reason = None
  77             if result in ("success", "successful"):
  78                 try:
  79                     open_tests.remove(testname)
  80                 except ValueError:
  81                     statistics['TESTS_ERROR']+=1
  82                     msg_ops.end_test(testname, "error", True,
  83                             "Test was never started")
  84                 else:
  85                     statistics['TESTS_EXPECTED_OK']+=1
  86                     msg_ops.end_test(testname, "success", False, reason)
  87             elif result in ("xfail", "knownfail"):
  88                 try:
  89                     open_tests.remove(testname)
  90                 except ValueError:
  91                     statistics['TESTS_ERROR']+=1
  92                     msg_ops.end_test(testname, "error", True,
  93                             "Test was never started")
  94                 else:
  95                     statistics['TESTS_EXPECTED_FAIL']+=1
  96                     msg_ops.end_test(testname, "xfail", False, reason)
  97                     expected_fail+=1
  98             elif result in ("failure", "fail"):
  99                 try:
 100                     open_tests.remove(testname)
 101                 except ValueError:
 102                     statistics['TESTS_ERROR']+=1
 103                     msg_ops.end_test(testname, "error", True,
 104                             "Test was never started")
 105                 else:
 106                     statistics['TESTS_UNEXPECTED_FAIL']+=1
 107                     msg_ops.end_test(testname, "failure", True, reason)
 108             elif result == "skip":
 109                 statistics['TESTS_SKIP']+=1
 110                 # Allow tests to be skipped without prior announcement of test
 111                 last = open_tests.pop()
 112                 if last is not None and last != testname:
 113                     open_tests.append(testname)
 114                 msg_ops.end_test(testname, "skip", False, reason)
 115             elif result == "error":
 116                 statistics['TESTS_ERROR']+=1
 117                 try:
 118                     open_tests.remove(testname)
 119                 except ValueError:
 120                     pass
 121                 msg_ops.end_test(testname, "error", True, reason)
 122             elif result == "skip-testsuite":
 123                 msg_ops.skip_testsuite(testname)
 124             elif result == "testsuite-success":
 125                 msg_ops.end_testsuite(testname, "success", reason)
 126             elif result == "testsuite-failure":
 127                 msg_ops.end_testsuite(testname, "failure", reason)
 128             elif result == "testsuite-xfail":
 129                 msg_ops.end_testsuite(testname, "xfail", reason)
 130             elif result == "testsuite-error":
 131                 msg_ops.end_testsuite(testname, "error", reason)
 132             else:
 133                 raise AssertionError("Recognized but unhandled result %r" %
 134                     result)
 135         elif command == "testsuite":
 136             msg_ops.start_testsuite(arg.strip())
 137         elif command == "progress":
 138             arg = arg.strip()
 139             if arg == "pop":
 140                 msg_ops.progress(None, subunit.PROGRESS_POP)
 141             elif arg == "push":
 142                 msg_ops.progress(None, subunit.PROGRESS_PUSH)
 143             elif arg[0] in '+-':
 144                 msg_ops.progress(int(arg), subunit.PROGRESS_CUR)
 145             else:
 146                 msg_ops.progress(int(arg), subunit.PROGRESS_SET)
 147         else:
 148             msg_ops.output_msg(l)
 149
 150     while open_tests:
 151         msg_ops.end_test(open_tests.pop(), "error", True,
 152                    "was started but never finished!")
 153         statistics['TESTS_ERROR']+=1
 154
 155     if statistics['TESTS_ERROR'] > 0:
 156         return 1
 157     if statistics['TESTS_UNEXPECTED_FAIL'] > 0:
 158         return 1
 159     return 0
 160
 161
 162 class SubunitOps(object):
 163
 164     def start_test(self, testname):
 165         print "test: %s" % testname
 166
 167     def end_test(self, name, result, reason=None):
 168         if reason:
 169             print "%s: %s [" % (result, name)
 170             print reason
 171             print "]"
 172         else:
 173             print "%s: %s" % (result, name)
 174
 175     def skip_test(self, name, reason=None):
 176         self.end_test(name, "skip", reason)
 177
 178     def fail_test(self, name, reason=None):
 179         self.end_test(name, "fail", reason)
 180
 181     def success_test(self, name, reason=None):
 182         self.end_test(name, "success", reason)
 183
 184     def xfail_test(self, name, reason=None):
 185         self.end_test(name, "xfail", reason)
 186
 187     def report_time(self, t):
 188         (year, mon, mday, hour, min, sec, wday, yday, isdst) = time.localtime(t)
 189         print "time: %04d-%02d-%02d %02d:%02d:%02d" % (year, mon, mday, hour, min, sec)
 190
 191     def progress(self, offset, whence):
 192         if whence == subunit.PROGRESS_CUR and offset > -1:
 193             prefix = "+"
 194         elif whence == subunit.PROGRESS_PUSH:
 195             prefix = ""
 196             offset = "push"
 197         elif whence == subunit.PROGRESS_POP:
 198             prefix = ""
 199             offset = "pop"
 200         else:
 201             prefix = ""
 202         print "progress: %s%s" % (prefix, offset)
 203
 204     # The following are Samba extensions:
 205     def start_testsuite(self, name):
 206         print "testsuite: %s" % name
 207
 208     def skip_testsuite(self, name, reason=None):
 209         if reason:
 210             print "skip-testsuite: %s [\n%s\n]" % (name, reason)
 211         else:
 212             print "skip-testsuite: %s" % name
 213
 214     def end_testsuite(self, name, result, reason=None):
 215         if reason:
 216             print "testsuite-%s: %s [" % (result, name)
 217             print "%s" % reason
 218             print "]"
 219         else:
 220             print "testsuite-%s: %s" % (result, name)
 221
 222
 223 def read_test_regexes(name):
 224     ret = {}
 225     f = open(name, 'r')
 226     try:
 227         for l in f:
 228             l = l.strip()
 229             if l == "" or l[0] == "#":
 230                 continue
 231             if "#" in l:
 232                 (regex, reason) = l.split("#", 1)
 233                 ret[regex.strip()] = reason.strip()
 234             else:
 235                 ret[l] = None
 236     finally:
 237         f.close()
 238     return ret
 239
 240
 241 def find_in_list(regexes, fullname):
 242     for regex, reason in regexes.iteritems():
 243         if re.match(regex, fullname):
 244             if reason is None:
 245                 return ""
 246             return reason
 247     return None
 248
 249
 250 class FilterOps(object):
 251
 252     def control_msg(self, msg):
 253         pass # We regenerate control messages, so ignore this
 254
 255     def report_time(self, time):
 256         self._ops.report_time(time)
 257
 258     def progress(self, delta, whence):
 259         self._ops.progress(delta, whence)
 260
 261     def output_msg(self, msg):
 262         if self.output is None:
 263             sys.stdout.write(msg)
 264         else:
 265             self.output+=msg
 266
 267     def start_test(self, testname):
 268         if self.prefix is not None:
 269             testname = self.prefix + testname
 270
 271         if self.strip_ok_output:
 272            self.output = ""
 273
 274         self._ops.start_test(testname)
 275
 276     def end_test(self, testname, result, unexpected, reason):
 277         if self.prefix is not None:
 278             testname = self.prefix + testname
 279
 280         if result in ("fail", "failure") and not unexpected:
 281             result = "xfail"
 282             self.xfail_added+=1
 283             self.total_xfail+=1
 284         xfail_reason = find_in_list(self.expected_failures, testname)
 285         if xfail_reason is not None and result in ("fail", "failure"):
 286             result = "xfail"
 287             self.xfail_added+=1
 288             self.total_xfail+=1
 289             reason += xfail_reason
 290
 291         if result in ("fail", "failure"):
 292             self.fail_added+=1
 293             self.total_fail+=1
 294
 295         if result == "error":
 296             self.error_added+=1
 297             self.total_error+=1
 298
 299         if self.strip_ok_output:
 300             if result not in ("success", "xfail", "skip"):
 301                 print self.output
 302         self.output = None
 303
 304         self._ops.end_test(testname, result, reason)
 305
 306     def skip_testsuite(self, name, reason=None):
 307         self._ops.skip_testsuite(name, reason)
 308
 309     def start_testsuite(self, name):
 310         self._ops.start_testsuite(name)
 311
 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, prefix, expected_failures, strip_ok_output):
 342         self._ops = SubunitOps()
 343         self.output = None
 344         self.prefix = prefix
 345         self.expected_failures = expected_failures
 346         self.strip_ok_output = strip_ok_output
 347         self.xfail_added = 0
 348         self.total_xfail = 0
 349         self.total_error = 0
 350         self.total_fail = 0