1 # -*- coding: utf-8 -*-
3 from twisted.trial import unittest
5 from twisted.python import usage, runtime
6 from twisted.internet import utils
7 import os.path, re, sys
8 from cStringIO import StringIO
9 from allmydata.util import fileutil, pollmixin
10 from allmydata.scripts import runner
12 from allmydata.test import common_util
15 bintahoe = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(allmydata.__file__))), 'bin', 'tahoe')
16 if sys.platform == "win32":
19 class SkipOnCygwinMixin:
20 def skip_on_cygwin(self):
21 if "cygwin" in sys.platform.lower():
22 raise unittest.SkipTest("We don't know how to make this test work on cygwin: spawnProcess seems to hang forever. We don't know if 'bin/tahoe start' can be run on cygwin.")
24 class TheRightCode(common_util.SignalMixin, unittest.TestCase,
28 if not os.path.exists(bintahoe):
29 raise unittest.SkipTest("The bin/tahoe script isn't to be found in the expected location, and I don't want to test a 'tahoe' executable that I find somewhere else, in case it isn't the right executable for this version of tahoe.")
30 d = utils.getProcessOutputAndValue(bintahoe, args=["--version-and-path"], env=os.environ)
32 out, err, rc_or_sig = res
33 self.failUnlessEqual(rc_or_sig, 0)
35 # Fail unless the allmydata-tahoe package is *this* version *and*
36 # was loaded from *this* source directory.
37 ad = os.path.dirname(os.path.dirname(os.path.realpath(allmydata.__file__)))
38 required_ver_and_path = "allmydata-tahoe: %s (%s)" % (allmydata.__version__, ad)
39 self.failUnless(out.startswith(required_ver_and_path),
40 (out, err, rc_or_sig, required_ver_and_path))
44 class CreateNode(unittest.TestCase):
45 # exercise "tahoe create-node", create-introducer,
46 # create-key-generator, and create-stats-gatherer, by calling the
47 # corresponding code as a subroutine.
49 def workdir(self, name):
50 basedir = os.path.join("test_runner", "CreateNode", name)
51 fileutil.make_dirs(basedir)
54 def run_tahoe(self, argv):
55 out,err = StringIO(), StringIO()
56 rc = runner.runner(argv, stdout=out, stderr=err)
57 return rc, out.getvalue(), err.getvalue()
59 def test_node(self, command="create-node"):
60 basedir = self.workdir("test_node")
61 c1 = os.path.join(basedir, command + "-c1")
62 argv = ["--quiet", command, "--basedir", c1]
63 rc, out, err = self.run_tahoe(argv)
64 self.failUnlessEqual(err, "")
65 self.failUnlessEqual(out, "")
66 self.failUnlessEqual(rc, 0)
67 self.failUnless(os.path.exists(c1))
68 self.failUnless(os.path.exists(os.path.join(c1, "tahoe-client.tac")))
70 # tahoe.cfg should exist, and should have storage enabled for
71 # 'create-node', and disabled for 'create-client'.
72 tahoe_cfg = os.path.join(c1, "tahoe.cfg")
73 self.failUnless(os.path.exists(tahoe_cfg))
74 content = open(tahoe_cfg).read()
75 if command == "create-client":
76 self.failUnless("\n[storage]\nenabled = false\n" in content)
78 self.failUnless("\n[storage]\nenabled = true\n" in content)
80 # creating the client a second time should be rejected
81 rc, out, err = self.run_tahoe(argv)
82 self.failIfEqual(rc, 0, str((out, err, rc)))
83 self.failUnlessEqual(out, "")
84 self.failUnless("is not empty." in err)
86 # Fail if there is a non-empty line that doesn't end with a
88 for line in err.splitlines():
89 self.failIf(re.search("[\S][^\.!?]$", line), (line,))
91 # test that the non --basedir form works too
92 c2 = os.path.join(basedir, command + "c2")
93 argv = ["--quiet", command, c2]
94 rc, out, err = self.run_tahoe(argv)
95 self.failUnless(os.path.exists(c2))
96 self.failUnless(os.path.exists(os.path.join(c2, "tahoe-client.tac")))
98 # make sure it rejects too many arguments
99 argv = [command, "basedir", "extraarg"]
100 self.failUnlessRaises(usage.UsageError,
104 def test_client(self):
105 # create-client should behave like create-node --no-storage.
106 self.test_node(command="create-client")
108 def test_introducer(self):
109 basedir = self.workdir("test_introducer")
110 c1 = os.path.join(basedir, "c1")
111 argv = ["--quiet", "create-introducer", "--basedir", c1]
112 rc, out, err = self.run_tahoe(argv)
113 self.failUnlessEqual(err, "", err)
114 self.failUnlessEqual(out, "")
115 self.failUnlessEqual(rc, 0)
116 self.failUnless(os.path.exists(c1))
117 self.failUnless(os.path.exists(os.path.join(c1,"tahoe-introducer.tac")))
119 # creating the introducer a second time should be rejected
120 rc, out, err = self.run_tahoe(argv)
121 self.failIfEqual(rc, 0)
122 self.failUnlessEqual(out, "")
123 self.failUnless("is not empty" in err)
125 # Fail if there is a non-empty line that doesn't end with a
127 for line in err.splitlines():
128 self.failIf(re.search("[\S][^\.!?]$", line), (line,))
130 # test the non --basedir form
131 c2 = os.path.join(basedir, "c2")
132 argv = ["--quiet", "create-introducer", c2]
133 rc, out, err = self.run_tahoe(argv)
134 self.failUnlessEqual(err, "", err)
135 self.failUnlessEqual(out, "")
136 self.failUnlessEqual(rc, 0)
137 self.failUnless(os.path.exists(c2))
138 self.failUnless(os.path.exists(os.path.join(c2,"tahoe-introducer.tac")))
140 # reject extra arguments
141 argv = ["create-introducer", "basedir", "extraarg"]
142 self.failUnlessRaises(usage.UsageError,
145 # and require basedir to be provided in some form
146 argv = ["create-introducer"]
147 self.failUnlessRaises(usage.UsageError,
151 def test_key_generator(self):
152 basedir = self.workdir("test_key_generator")
153 kg1 = os.path.join(basedir, "kg1")
154 argv = ["--quiet", "create-key-generator", "--basedir", kg1]
155 rc, out, err = self.run_tahoe(argv)
156 self.failUnlessEqual(err, "")
157 self.failUnlessEqual(out, "")
158 self.failUnlessEqual(rc, 0)
159 self.failUnless(os.path.exists(kg1))
160 self.failUnless(os.path.exists(os.path.join(kg1, "tahoe-key-generator.tac")))
162 # creating it a second time should be rejected
163 rc, out, err = self.run_tahoe(argv)
164 self.failIfEqual(rc, 0, str((out, err, rc)))
165 self.failUnlessEqual(out, "")
166 self.failUnless("is not empty." in err)
168 # make sure it rejects too many arguments
169 argv = ["create-key-generator", "basedir", "extraarg"]
170 self.failUnlessRaises(usage.UsageError,
174 # make sure it rejects a missing basedir specification
175 argv = ["create-key-generator"]
176 rc, out, err = self.run_tahoe(argv)
177 self.failIfEqual(rc, 0, str((out, err, rc)))
178 self.failUnlessEqual(out, "")
179 self.failUnless("a basedir was not provided" in err)
181 def test_stats_gatherer(self):
182 basedir = self.workdir("test_stats_gatherer")
183 sg1 = os.path.join(basedir, "sg1")
184 argv = ["--quiet", "create-stats-gatherer", "--basedir", sg1]
185 rc, out, err = self.run_tahoe(argv)
186 self.failUnlessEqual(err, "")
187 self.failUnlessEqual(out, "")
188 self.failUnlessEqual(rc, 0)
189 self.failUnless(os.path.exists(sg1))
190 self.failUnless(os.path.exists(os.path.join(sg1, "tahoe-stats-gatherer.tac")))
192 # creating it a second time should be rejected
193 rc, out, err = self.run_tahoe(argv)
194 self.failIfEqual(rc, 0, str((out, err, rc)))
195 self.failUnlessEqual(out, "")
196 self.failUnless("is not empty." in err)
198 # test the non --basedir form
199 kg2 = os.path.join(basedir, "kg2")
200 argv = ["--quiet", "create-stats-gatherer", kg2]
201 rc, out, err = self.run_tahoe(argv)
202 self.failUnlessEqual(err, "", err)
203 self.failUnlessEqual(out, "")
204 self.failUnlessEqual(rc, 0)
205 self.failUnless(os.path.exists(kg2))
206 self.failUnless(os.path.exists(os.path.join(kg2,"tahoe-stats-gatherer.tac")))
208 # make sure it rejects too many arguments
209 argv = ["create-stats-gatherer", "basedir", "extraarg"]
210 self.failUnlessRaises(usage.UsageError,
214 # make sure it rejects a missing basedir specification
215 argv = ["create-stats-gatherer"]
216 rc, out, err = self.run_tahoe(argv)
217 self.failIfEqual(rc, 0, str((out, err, rc)))
218 self.failUnlessEqual(out, "")
219 self.failUnless("a basedir was not provided" in err)
221 def test_subcommands(self):
222 # no arguments should trigger a command listing, via UsageError
223 self.failUnlessRaises(usage.UsageError,
229 class RunNode(common_util.SignalMixin, unittest.TestCase, pollmixin.PollMixin,
231 # exercise "tahoe start", for both introducer, client node, and
232 # key-generator, by spawning "tahoe start" as a subprocess. This doesn't
233 # get us figleaf-based line-level coverage, but it does a better job of
234 # confirming that the user can actually run "./bin/tahoe start" and
235 # expect it to work. This verifies that bin/tahoe sets up PYTHONPATH and
236 # the like correctly.
238 # This doesn't work on cygwin (it hangs forever), so we skip this test
239 # when we're on cygwin. It is likely that "tahoe start" itself doesn't
240 # work on cygwin: twisted seems unable to provide a version of
241 # spawnProcess which really works there.
243 def workdir(self, name):
244 basedir = os.path.join("test_runner", "RunNode", name)
245 fileutil.make_dirs(basedir)
248 def test_introducer(self):
249 self.skip_on_cygwin()
250 if not os.path.exists(bintahoe):
251 raise unittest.SkipTest("The bin/tahoe script isn't to be found in the expected location, and I don't want to test a 'tahoe' executable that I find somewhere else, in case it isn't the right executable for this version of tahoe.")
252 if runtime.platformType == "win32":
253 # twistd on windows doesn't daemonize. cygwin works normally.
254 raise unittest.SkipTest("twistd does not fork under windows")
255 basedir = self.workdir("test_introducer")
256 c1 = os.path.join(basedir, "c1")
257 HOTLINE_FILE = os.path.join(c1, "suicide_prevention_hotline")
258 TWISTD_PID_FILE = os.path.join(c1, "twistd.pid")
259 INTRODUCER_FURL_FILE = os.path.join(c1, "introducer.furl")
261 d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "create-introducer", "--basedir", c1], env=os.environ)
263 out, err, rc_or_sig = res
264 self.failUnlessEqual(rc_or_sig, 0)
265 # by writing this file, we get ten seconds before the node will
266 # exit. This insures that even if the test fails (and the 'stop'
267 # command doesn't work), the client should still terminate.
268 open(HOTLINE_FILE, "w").write("")
269 # now it's safe to start the node
272 def _then_start_the_node(res):
273 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", c1], env=os.environ)
274 d.addCallback(_then_start_the_node)
277 out, err, rc_or_sig = res
279 open(HOTLINE_FILE, "w").write("")
280 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
281 self.failUnlessEqual(rc_or_sig, 0, errstr)
282 self.failUnlessEqual(out, "", errstr)
283 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
285 # the parent (twistd) has exited. However, twistd writes the pid
286 # from the child, not the parent, so we can't expect twistd.pid
287 # to exist quite yet.
289 # the node is running, but it might not have made it past the
290 # first reactor turn yet, and if we kill it too early, it won't
291 # remove the twistd.pid file. So wait until it does something
292 # that we know it won't do until after the first turn.
295 def _node_has_started():
296 return os.path.exists(INTRODUCER_FURL_FILE)
297 d.addCallback(lambda res: self.poll(_node_has_started))
300 open(HOTLINE_FILE, "w").write("")
301 self.failUnless(os.path.exists(TWISTD_PID_FILE))
302 # rm this so we can detect when the second incarnation is ready
303 os.unlink(INTRODUCER_FURL_FILE)
304 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "restart", c1], env=os.environ)
305 d.addCallback(_started)
308 out, err, rc_or_sig = res
309 open(HOTLINE_FILE, "w").write("")
310 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
311 self.failUnlessEqual(rc_or_sig, 0, errstr)
312 self.failUnlessEqual(out, "", errstr)
313 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
316 # again, the second incarnation of the node might not be ready yet,
317 # so poll until it is
318 d.addCallback(lambda res: self.poll(_node_has_started))
320 # now we can kill it. TODO: On a slow machine, the node might kill
321 # itself before we get a chance too, especially if spawning the
322 # 'tahoe stop' command takes a while.
324 open(HOTLINE_FILE, "w").write("")
325 self.failUnless(os.path.exists(TWISTD_PID_FILE))
327 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", c1], env=os.environ)
330 def _after_stopping(res):
331 out, err, rc_or_sig = res
332 open(HOTLINE_FILE, "w").write("")
333 # the parent has exited by now
334 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
335 self.failUnlessEqual(rc_or_sig, 0, errstr)
336 self.failUnlessEqual(out, "", errstr)
337 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
338 # the parent was supposed to poll and wait until it sees
339 # twistd.pid go away before it exits, so twistd.pid should be
341 self.failIf(os.path.exists(TWISTD_PID_FILE))
342 d.addCallback(_after_stopping)
344 def _remove_hotline(res):
345 os.unlink(HOTLINE_FILE)
347 d.addBoth(_remove_hotline)
349 test_introducer.timeout = 480 # This hit the 120-second timeout on "François Lenny-armv5tel", then it hit a 240-second timeout on our feisty2.5 buildslave: http://allmydata.org/buildbot/builders/feisty2.5/builds/2381/steps/test/logs/test.log
351 def test_client(self):
352 self.skip_on_cygwin()
353 if not os.path.exists(bintahoe):
354 raise unittest.SkipTest("The bin/tahoe script isn't to be found in the expected location, and I don't want to test a 'tahoe' executable that I find somewhere else, in case it isn't the right executable for this version of tahoe.")
355 if runtime.platformType == "win32":
356 # twistd on windows doesn't daemonize. cygwin works normally.
357 raise unittest.SkipTest("twistd does not fork under windows")
358 basedir = self.workdir("test_client")
359 c1 = os.path.join(basedir, "c1")
360 HOTLINE_FILE = os.path.join(c1, "suicide_prevention_hotline")
361 TWISTD_PID_FILE = os.path.join(c1, "twistd.pid")
362 PORTNUMFILE = os.path.join(c1, "client.port")
364 d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "create-node", "--basedir", c1, "--webport", "0"], env=os.environ)
366 out, err, rc_or_sig = res
367 self.failUnlessEqual(rc_or_sig, 0)
368 # By writing this file, we get sixty seconds before the client will exit. This insures
369 # that even if the 'stop' command doesn't work (and the test fails), the client should
371 open(HOTLINE_FILE, "w").write("")
372 open(os.path.join(c1, "introducer.furl"), "w").write("pb://xrndsskn2zuuian5ltnxrte7lnuqdrkz@127.0.0.1:55617/introducer\n")
373 # now it's safe to start the node
377 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", c1], env=os.environ)
378 d.addCallback(_start)
381 out, err, rc_or_sig = res
382 open(HOTLINE_FILE, "w").write("")
383 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
384 self.failUnlessEqual(rc_or_sig, 0, errstr)
385 self.failUnlessEqual(out, "", errstr)
386 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
388 # the parent (twistd) has exited. However, twistd writes the pid
389 # from the child, not the parent, so we can't expect twistd.pid
390 # to exist quite yet.
392 # the node is running, but it might not have made it past the
393 # first reactor turn yet, and if we kill it too early, it won't
394 # remove the twistd.pid file. So wait until it does something
395 # that we know it won't do until after the first turn.
398 def _node_has_started():
399 return os.path.exists(PORTNUMFILE)
400 d.addCallback(lambda res: self.poll(_node_has_started))
403 open(HOTLINE_FILE, "w").write("")
404 self.failUnless(os.path.exists(TWISTD_PID_FILE))
405 # rm this so we can detect when the second incarnation is ready
406 os.unlink(PORTNUMFILE)
408 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "restart", c1], env=os.environ)
409 d.addCallback(_started)
412 out, err, rc_or_sig = res
414 open(HOTLINE_FILE, "w").write("")
415 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
416 self.failUnlessEqual(rc_or_sig, 0, errstr)
417 self.failUnlessEqual(out, "", errstr)
418 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
421 # again, the second incarnation of the node might not be ready yet,
422 # so poll until it is
423 d.addCallback(lambda res: self.poll(_node_has_started))
425 # now we can kill it. TODO: On a slow machine, the node might kill
426 # itself before we get a chance too, especially if spawning the
427 # 'tahoe stop' command takes a while.
429 open(HOTLINE_FILE, "w").write("")
430 self.failUnless(os.path.exists(TWISTD_PID_FILE), (TWISTD_PID_FILE, os.listdir(os.path.dirname(TWISTD_PID_FILE))))
431 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", c1], env=os.environ)
435 out, err, rc_or_sig = res
437 open(HOTLINE_FILE, "w").write("")
438 # the parent has exited by now
439 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
440 self.failUnlessEqual(rc_or_sig, 0, errstr)
441 self.failUnlessEqual(out, "", errstr)
442 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
443 # the parent was supposed to poll and wait until it sees
444 # twistd.pid go away before it exits, so twistd.pid should be
446 self.failIf(os.path.exists(TWISTD_PID_FILE))
448 def _remove_hotline(res):
449 os.unlink(HOTLINE_FILE)
451 d.addBoth(_remove_hotline)
454 def test_baddir(self):
455 self.skip_on_cygwin()
456 if not os.path.exists(bintahoe):
457 raise unittest.SkipTest("The bin/tahoe script isn't to be found in the expected location, and I don't want to test a 'tahoe' executable that I find somewhere else, in case it isn't the right executable for this version of tahoe.")
458 basedir = self.workdir("test_baddir")
459 fileutil.make_dirs(basedir)
461 d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", "--basedir", basedir], env=os.environ)
463 out, err, rc_or_sig = res
464 self.failUnlessEqual(rc_or_sig, 1)
465 self.failUnless("does not look like a node directory" in err)
468 def _then_stop_it(res):
469 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", "--basedir", basedir], env=os.environ)
470 d.addCallback(_then_stop_it)
473 out, err, rc_or_sig = res
474 self.failUnlessEqual(rc_or_sig, 2)
475 self.failUnless("does not look like a running node directory" in err)
478 def _then_start_in_bogus_basedir(res):
479 not_a_dir = os.path.join(basedir, "bogus")
480 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", "--basedir", not_a_dir], env=os.environ)
481 d.addCallback(_then_start_in_bogus_basedir)
484 out, err, rc_or_sig = res
485 self.failUnlessEqual(rc_or_sig, 1)
486 self.failUnless("does not look like a directory at all" in err, err)
490 def test_keygen(self):
491 self.skip_on_cygwin()
492 if not os.path.exists(bintahoe):
493 raise unittest.SkipTest("The bin/tahoe script isn't to be found in the expected location, and I don't want to test a 'tahoe' executable that I find somewhere else, in case it isn't the right executable for this version of tahoe.")
494 if runtime.platformType == "win32":
495 # twistd on windows doesn't daemonize. cygwin works normally.
496 raise unittest.SkipTest("twistd does not fork under windows")
497 basedir = self.workdir("test_keygen")
498 c1 = os.path.join(basedir, "c1")
499 TWISTD_PID_FILE = os.path.join(c1, "twistd.pid")
500 KEYGEN_FURL_FILE = os.path.join(c1, "key_generator.furl")
502 d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "create-key-generator", "--basedir", c1], env=os.environ)
504 out, err, rc_or_sig = res
505 self.failUnlessEqual(rc_or_sig, 0)
509 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", c1], env=os.environ)
510 d.addCallback(_start)
513 out, err, rc_or_sig = res
514 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
515 self.failUnlessEqual(rc_or_sig, 0, errstr)
516 self.failUnlessEqual(out, "", errstr)
517 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
519 # the parent (twistd) has exited. However, twistd writes the pid
520 # from the child, not the parent, so we can't expect twistd.pid
521 # to exist quite yet.
523 # the node is running, but it might not have made it past the
524 # first reactor turn yet, and if we kill it too early, it won't
525 # remove the twistd.pid file. So wait until it does something
526 # that we know it won't do until after the first turn.
529 def _node_has_started():
530 return os.path.exists(KEYGEN_FURL_FILE)
531 d.addCallback(lambda res: self.poll(_node_has_started))
534 self.failUnless(os.path.exists(TWISTD_PID_FILE))
535 # rm this so we can detect when the second incarnation is ready
536 os.unlink(KEYGEN_FURL_FILE)
537 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "restart", c1], env=os.environ)
538 d.addCallback(_started)
541 out, err, rc_or_sig = res
542 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
543 self.failUnlessEqual(rc_or_sig, 0, errstr)
544 self.failUnlessEqual(out, "", errstr)
545 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
548 # again, the second incarnation of the node might not be ready yet,
549 # so poll until it is
550 d.addCallback(lambda res: self.poll(_node_has_started))
552 # now we can kill it. TODO: On a slow machine, the node might kill
553 # itself before we get a chance too, especially if spawning the
554 # 'tahoe stop' command takes a while.
556 self.failUnless(os.path.exists(TWISTD_PID_FILE))
557 return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", c1], env=os.environ)
561 out, err, rc_or_sig = res
562 # the parent has exited by now
563 errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
564 self.failUnlessEqual(rc_or_sig, 0, errstr)
565 self.failUnlessEqual(out, "", errstr)
566 # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
567 # the parent was supposed to poll and wait until it sees
568 # twistd.pid go away before it exits, so twistd.pid should be
570 self.failIf(os.path.exists(TWISTD_PID_FILE))