src/allmydata/test/test_runner.py

   1 # -*- coding: utf-8 -*-
   2
   3 from twisted.trial import unittest
   4
   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
  11
  12 from allmydata.test import common_util
  13 import allmydata
  14
  15 bintahoe = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(allmydata.__file__))), 'bin', 'tahoe')
  16 if sys.platform == "win32":  # TODO: should this include cygwin?
  17     bintahoe += ".exe"
  18
  19
  20 class SkipMixin:
  21     def skip_if_cannot_run_bintahoe(self):
  22         if "cygwin" in sys.platform.lower():
  23             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         if not os.path.exists(bintahoe):
  25             raise unittest.SkipTest("The bin/tahoe script isn't to be found in the expected location (%s), 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. Perhaps running 'setup.py build' again will help." % (bintahoe,))
  26
  27     def skip_if_cannot_daemonize(self):
  28         self.skip_if_cannot_run_bintahoe()
  29         if runtime.platformType == "win32":
  30             # twistd on windows doesn't daemonize. cygwin should work normally.
  31             raise unittest.SkipTest("twistd does not fork under windows")
  32
  33
  34 class BinTahoe(common_util.SignalMixin, unittest.TestCase, SkipMixin):
  35     def test_path(self):
  36         self.skip_if_cannot_run_bintahoe()
  37         d = utils.getProcessOutputAndValue(bintahoe, args=["--version-and-path"], env=os.environ)
  38         def _cb(res):
  39             out, err, rc_or_sig = res
  40             self.failUnlessEqual(rc_or_sig, 0, str(res))
  41
  42             # Fail unless the package is *this* version *and* was loaded from *this* source directory.
  43             ad = os.path.dirname(os.path.dirname(os.path.realpath(allmydata.__file__)))
  44             required_ver_and_path = "%s: %s (%s)" % (allmydata.__appname__, allmydata.__version__, ad)
  45             self.failUnless(out.startswith(required_ver_and_path),
  46                             str((out, err, rc_or_sig, required_ver_and_path)))
  47         d.addCallback(_cb)
  48         return d
  49
  50     def test_version_no_noise(self):
  51         self.skip_if_cannot_run_bintahoe()
  52         import pkg_resources
  53         try:
  54             pkg_resources.require("Twisted>=9.0.0")
  55         except pkg_resources.VersionConflict:
  56             raise unittest.SkipTest("We pass this test only with Twisted >= v9.0.0")
  57
  58         d = utils.getProcessOutputAndValue(bintahoe, args=["--version"], env=os.environ)
  59         def _cb(res):
  60             out, err, rc_or_sig = res
  61             self.failUnlessEqual(rc_or_sig, 0, str(res))
  62             self.failUnless(out.startswith(allmydata.__appname__+':'), str(res))
  63             self.failIfIn("DeprecationWarning", out, str(res))
  64             self.failUnlessEqual(err, "", str(res))
  65         d.addCallback(_cb)
  66         return d
  67
  68
  69 class CreateNode(unittest.TestCase):
  70     # exercise "tahoe create-node", create-introducer,
  71     # create-key-generator, and create-stats-gatherer, by calling the
  72     # corresponding code as a subroutine.
  73
  74     def workdir(self, name):
  75         basedir = os.path.join("test_runner", "CreateNode", name)
  76         fileutil.make_dirs(basedir)
  77         return basedir
  78
  79     def run_tahoe(self, argv):
  80         out,err = StringIO(), StringIO()
  81         rc = runner.runner(argv, stdout=out, stderr=err)
  82         return rc, out.getvalue(), err.getvalue()
  83
  84     def do_create(self, command, basedir):
  85         c1 = os.path.join(basedir, command + "-c1")
  86         argv = ["--quiet", command, "--basedir", c1]
  87         rc, out, err = self.run_tahoe(argv)
  88         self.failUnlessEqual(err, "")
  89         self.failUnlessEqual(out, "")
  90         self.failUnlessEqual(rc, 0)
  91         self.failUnless(os.path.exists(c1))
  92         self.failUnless(os.path.exists(os.path.join(c1, "tahoe-client.tac")))
  93
  94         # tahoe.cfg should exist, and should have storage enabled for
  95         # 'create-node', and disabled for 'create-client'.
  96         tahoe_cfg = os.path.join(c1, "tahoe.cfg")
  97         self.failUnless(os.path.exists(tahoe_cfg))
  98         content = open(tahoe_cfg).read()
  99         if command == "create-client":
 100             self.failUnless("\n[storage]\nenabled = false\n" in content)
 101         else:
 102             self.failUnless("\n[storage]\nenabled = true\n" in content)
 103
 104         # creating the client a second time should be rejected
 105         rc, out, err = self.run_tahoe(argv)
 106         self.failIfEqual(rc, 0, str((out, err, rc)))
 107         self.failUnlessEqual(out, "")
 108         self.failUnless("is not empty." in err)
 109
 110         # Fail if there is a non-empty line that doesn't end with a
 111         # punctuation mark.
 112         for line in err.splitlines():
 113             self.failIf(re.search("[\S][^\.!?]$", line), (line,))
 114
 115         # test that the non --basedir form works too
 116         c2 = os.path.join(basedir, command + "c2")
 117         argv = ["--quiet", command, c2]
 118         rc, out, err = self.run_tahoe(argv)
 119         self.failUnless(os.path.exists(c2))
 120         self.failUnless(os.path.exists(os.path.join(c2, "tahoe-client.tac")))
 121
 122         # make sure it rejects too many arguments
 123         argv = [command, "basedir", "extraarg"]
 124         self.failUnlessRaises(usage.UsageError,
 125                               runner.runner, argv,
 126                               run_by_human=False)
 127
 128     def test_node(self):
 129         basedir = self.workdir("test_node")
 130         self.do_create("create-node", basedir)
 131
 132     def test_client(self):
 133         # create-client should behave like create-node --no-storage.
 134         basedir = self.workdir("test_client")
 135         self.do_create("create-client", basedir)
 136
 137     def test_introducer(self):
 138         basedir = self.workdir("test_introducer")
 139         c1 = os.path.join(basedir, "c1")
 140         argv = ["--quiet", "create-introducer", "--basedir", c1]
 141         rc, out, err = self.run_tahoe(argv)
 142         self.failUnlessEqual(err, "", err)
 143         self.failUnlessEqual(out, "")
 144         self.failUnlessEqual(rc, 0)
 145         self.failUnless(os.path.exists(c1))
 146         self.failUnless(os.path.exists(os.path.join(c1,"tahoe-introducer.tac")))
 147
 148         # creating the introducer a second time should be rejected
 149         rc, out, err = self.run_tahoe(argv)
 150         self.failIfEqual(rc, 0)
 151         self.failUnlessEqual(out, "")
 152         self.failUnless("is not empty" in err)
 153
 154         # Fail if there is a non-empty line that doesn't end with a
 155         # punctuation mark.
 156         for line in err.splitlines():
 157             self.failIf(re.search("[\S][^\.!?]$", line), (line,))
 158
 159         # test the non --basedir form
 160         c2 = os.path.join(basedir, "c2")
 161         argv = ["--quiet", "create-introducer", c2]
 162         rc, out, err = self.run_tahoe(argv)
 163         self.failUnlessEqual(err, "", err)
 164         self.failUnlessEqual(out, "")
 165         self.failUnlessEqual(rc, 0)
 166         self.failUnless(os.path.exists(c2))
 167         self.failUnless(os.path.exists(os.path.join(c2,"tahoe-introducer.tac")))
 168
 169         # reject extra arguments
 170         argv = ["create-introducer", "basedir", "extraarg"]
 171         self.failUnlessRaises(usage.UsageError,
 172                               runner.runner, argv,
 173                               run_by_human=False)
 174         # and require basedir to be provided in some form
 175         argv = ["create-introducer"]
 176         self.failUnlessRaises(usage.UsageError,
 177                               runner.runner, argv,
 178                               run_by_human=False)
 179
 180     def test_key_generator(self):
 181         basedir = self.workdir("test_key_generator")
 182         kg1 = os.path.join(basedir, "kg1")
 183         argv = ["--quiet", "create-key-generator", "--basedir", kg1]
 184         rc, out, err = self.run_tahoe(argv)
 185         self.failUnlessEqual(err, "")
 186         self.failUnlessEqual(out, "")
 187         self.failUnlessEqual(rc, 0)
 188         self.failUnless(os.path.exists(kg1))
 189         self.failUnless(os.path.exists(os.path.join(kg1, "tahoe-key-generator.tac")))
 190
 191         # creating it a second time should be rejected
 192         rc, out, err = self.run_tahoe(argv)
 193         self.failIfEqual(rc, 0, str((out, err, rc)))
 194         self.failUnlessEqual(out, "")
 195         self.failUnlessIn("is not empty.", err)
 196
 197         # make sure it rejects too many arguments
 198         argv = ["create-key-generator", "basedir", "extraarg"]
 199         self.failUnlessRaises(usage.UsageError,
 200                               runner.runner, argv,
 201                               run_by_human=False)
 202
 203         # make sure it rejects a missing basedir specification
 204         argv = ["create-key-generator"]
 205         self.failUnlessRaises(usage.UsageError,
 206                               runner.runner, argv,
 207                               run_by_human=False)
 208
 209     def test_stats_gatherer(self):
 210         basedir = self.workdir("test_stats_gatherer")
 211         sg1 = os.path.join(basedir, "sg1")
 212         argv = ["--quiet", "create-stats-gatherer", "--basedir", sg1]
 213         rc, out, err = self.run_tahoe(argv)
 214         self.failUnlessEqual(err, "")
 215         self.failUnlessEqual(out, "")
 216         self.failUnlessEqual(rc, 0)
 217         self.failUnless(os.path.exists(sg1))
 218         self.failUnless(os.path.exists(os.path.join(sg1, "tahoe-stats-gatherer.tac")))
 219
 220         # creating it a second time should be rejected
 221         rc, out, err = self.run_tahoe(argv)
 222         self.failIfEqual(rc, 0, str((out, err, rc)))
 223         self.failUnlessEqual(out, "")
 224         self.failUnless("is not empty." in err)
 225
 226         # test the non --basedir form
 227         kg2 = os.path.join(basedir, "kg2")
 228         argv = ["--quiet", "create-stats-gatherer", kg2]
 229         rc, out, err = self.run_tahoe(argv)
 230         self.failUnlessEqual(err, "", err)
 231         self.failUnlessEqual(out, "")
 232         self.failUnlessEqual(rc, 0)
 233         self.failUnless(os.path.exists(kg2))
 234         self.failUnless(os.path.exists(os.path.join(kg2,"tahoe-stats-gatherer.tac")))
 235
 236         # make sure it rejects too many arguments
 237         argv = ["create-stats-gatherer", "basedir", "extraarg"]
 238         self.failUnlessRaises(usage.UsageError,
 239                               runner.runner, argv,
 240                               run_by_human=False)
 241
 242         # make sure it rejects a missing basedir specification
 243         argv = ["create-stats-gatherer"]
 244         rc, out, err = self.run_tahoe(argv)
 245         self.failIfEqual(rc, 0, str((out, err, rc)))
 246         self.failUnlessEqual(out, "")
 247         self.failUnless("a basedir was not provided" in err)
 248
 249     def test_subcommands(self):
 250         # no arguments should trigger a command listing, via UsageError
 251         self.failUnlessRaises(usage.UsageError,
 252                               runner.runner,
 253                               [],
 254                               run_by_human=False)
 255
 256
 257 class RunNode(common_util.SignalMixin, unittest.TestCase, pollmixin.PollMixin,
 258               SkipMixin):
 259     # exercise "tahoe start", for both introducer, client node, and
 260     # key-generator, by spawning "tahoe start" as a subprocess. This doesn't
 261     # get us figleaf-based line-level coverage, but it does a better job of
 262     # confirming that the user can actually run "./bin/tahoe start" and
 263     # expect it to work. This verifies that bin/tahoe sets up PYTHONPATH and
 264     # the like correctly.
 265
 266     # This doesn't work on cygwin (it hangs forever), so we skip this test
 267     # when we're on cygwin. It is likely that "tahoe start" itself doesn't
 268     # work on cygwin: twisted seems unable to provide a version of
 269     # spawnProcess which really works there.
 270
 271     def workdir(self, name):
 272         basedir = os.path.join("test_runner", "RunNode", name)
 273         fileutil.make_dirs(basedir)
 274         return basedir
 275
 276     def test_introducer(self):
 277         self.skip_if_cannot_daemonize()
 278         basedir = self.workdir("test_introducer")
 279         c1 = os.path.join(basedir, "c1")
 280         HOTLINE_FILE = os.path.join(c1, "suicide_prevention_hotline")
 281         TWISTD_PID_FILE = os.path.join(c1, "twistd.pid")
 282         INTRODUCER_FURL_FILE = os.path.join(c1, "introducer.furl")
 283
 284         d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "create-introducer", "--basedir", c1], env=os.environ)
 285         def _cb(res):
 286             out, err, rc_or_sig = res
 287             self.failUnlessEqual(rc_or_sig, 0)
 288             # by writing this file, we get ten seconds before the node will
 289             # exit. This insures that even if the test fails (and the 'stop'
 290             # command doesn't work), the client should still terminate.
 291             open(HOTLINE_FILE, "w").write("")
 292             # now it's safe to start the node
 293         d.addCallback(_cb)
 294
 295         def _then_start_the_node(res):
 296             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", c1], env=os.environ)
 297         d.addCallback(_then_start_the_node)
 298
 299         def _cb2(res):
 300             out, err, rc_or_sig = res
 301
 302             open(HOTLINE_FILE, "w").write("")
 303             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 304             self.failUnlessEqual(rc_or_sig, 0, errstr)
 305             self.failUnlessEqual(out, "", errstr)
 306             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 307
 308             # the parent (twistd) has exited. However, twistd writes the pid
 309             # from the child, not the parent, so we can't expect twistd.pid
 310             # to exist quite yet.
 311
 312             # the node is running, but it might not have made it past the
 313             # first reactor turn yet, and if we kill it too early, it won't
 314             # remove the twistd.pid file. So wait until it does something
 315             # that we know it won't do until after the first turn.
 316         d.addCallback(_cb2)
 317
 318         def _node_has_started():
 319             return os.path.exists(INTRODUCER_FURL_FILE)
 320         d.addCallback(lambda res: self.poll(_node_has_started))
 321
 322         def _started(res):
 323             open(HOTLINE_FILE, "w").write("")
 324             self.failUnless(os.path.exists(TWISTD_PID_FILE))
 325             # rm this so we can detect when the second incarnation is ready
 326             os.unlink(INTRODUCER_FURL_FILE)
 327             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "restart", c1], env=os.environ)
 328         d.addCallback(_started)
 329
 330         def _then(res):
 331             out, err, rc_or_sig = res
 332             open(HOTLINE_FILE, "w").write("")
 333             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 334             self.failUnlessEqual(rc_or_sig, 0, errstr)
 335             self.failUnlessEqual(out, "", errstr)
 336             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 337         d.addCallback(_then)
 338
 339         # again, the second incarnation of the node might not be ready yet,
 340         # so poll until it is
 341         d.addCallback(lambda res: self.poll(_node_has_started))
 342
 343         # now we can kill it. TODO: On a slow machine, the node might kill
 344         # itself before we get a chance too, especially if spawning the
 345         # 'tahoe stop' command takes a while.
 346         def _stop(res):
 347             open(HOTLINE_FILE, "w").write("")
 348             self.failUnless(os.path.exists(TWISTD_PID_FILE))
 349
 350             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", c1], env=os.environ)
 351         d.addCallback(_stop)
 352
 353         def _after_stopping(res):
 354             out, err, rc_or_sig = res
 355             open(HOTLINE_FILE, "w").write("")
 356             # the parent has exited by now
 357             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 358             self.failUnlessEqual(rc_or_sig, 0, errstr)
 359             self.failUnlessEqual(out, "", errstr)
 360             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 361             # the parent was supposed to poll and wait until it sees
 362             # twistd.pid go away before it exits, so twistd.pid should be
 363             # gone by now.
 364             self.failIf(os.path.exists(TWISTD_PID_FILE))
 365         d.addCallback(_after_stopping)
 366
 367         def _remove_hotline(res):
 368             os.unlink(HOTLINE_FILE)
 369             return res
 370         d.addBoth(_remove_hotline)
 371         return d
 372     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
 373
 374     def test_client_no_noise(self):
 375         self.skip_if_cannot_daemonize()
 376         import pkg_resources
 377         try:
 378             pkg_resources.require("Twisted>=9.0.0")
 379         except pkg_resources.VersionConflict:
 380             raise unittest.SkipTest("We pass this test only with Twisted >= v9.0.0")
 381         basedir = self.workdir("test_client_no_noise")
 382         c1 = os.path.join(basedir, "c1")
 383         HOTLINE_FILE = os.path.join(c1, "suicide_prevention_hotline")
 384         TWISTD_PID_FILE = os.path.join(c1, "twistd.pid")
 385         PORTNUMFILE = os.path.join(c1, "client.port")
 386
 387         d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "create-client", "--basedir", c1, "--webport", "0"], env=os.environ)
 388         def _cb(res):
 389             out, err, rc_or_sig = res
 390             errstr = "cc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 391             assert rc_or_sig == 0, errstr
 392             self.failUnlessEqual(rc_or_sig, 0)
 393             # By writing this file, we get forty seconds before the client will exit. This insures
 394             # that even if the 'stop' command doesn't work (and the test fails), the client should
 395             # still terminate.
 396             open(HOTLINE_FILE, "w").write("")
 397             open(os.path.join(c1, "introducer.furl"), "w").write("pb://xrndsskn2zuuian5ltnxrte7lnuqdrkz@127.0.0.1:55617/introducer\n")
 398             # now it's safe to start the node
 399         d.addCallback(_cb)
 400
 401         def _start(res):
 402             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", c1], env=os.environ)
 403         d.addCallback(_start)
 404
 405         def _cb2(res):
 406             out, err, rc_or_sig = res
 407             errstr = "cc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 408             open(HOTLINE_FILE, "w").write("")
 409             self.failUnlessEqual(rc_or_sig, 0, errstr)
 410             self.failUnlessEqual(out, "", errstr) # If you emit noise, you fail this test.
 411             self.failUnlessEqual(err, "", errstr)
 412
 413             # the parent (twistd) has exited. However, twistd writes the pid
 414             # from the child, not the parent, so we can't expect twistd.pid
 415             # to exist quite yet.
 416
 417             # the node is running, but it might not have made it past the
 418             # first reactor turn yet, and if we kill it too early, it won't
 419             # remove the twistd.pid file. So wait until it does something
 420             # that we know it won't do until after the first turn.
 421         d.addCallback(_cb2)
 422
 423         def _node_has_started():
 424             return os.path.exists(PORTNUMFILE)
 425         d.addCallback(lambda res: self.poll(_node_has_started))
 426
 427         # now we can kill it. TODO: On a slow machine, the node might kill
 428         # itself before we get a chance too, especially if spawning the
 429         # 'tahoe stop' command takes a while.
 430         def _stop(res):
 431             self.failUnless(os.path.exists(TWISTD_PID_FILE), (TWISTD_PID_FILE, os.listdir(os.path.dirname(TWISTD_PID_FILE))))
 432             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", c1], env=os.environ)
 433         d.addCallback(_stop)
 434         return d
 435
 436     def test_client(self):
 437         self.skip_if_cannot_daemonize()
 438         basedir = self.workdir("test_client")
 439         c1 = os.path.join(basedir, "c1")
 440         HOTLINE_FILE = os.path.join(c1, "suicide_prevention_hotline")
 441         TWISTD_PID_FILE = os.path.join(c1, "twistd.pid")
 442         PORTNUMFILE = os.path.join(c1, "client.port")
 443
 444         d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "create-node", "--basedir", c1, "--webport", "0"], env=os.environ)
 445         def _cb(res):
 446             out, err, rc_or_sig = res
 447             self.failUnlessEqual(rc_or_sig, 0)
 448             # By writing this file, we get sixty seconds before the client will exit. This insures
 449             # that even if the 'stop' command doesn't work (and the test fails), the client should
 450             # still terminate.
 451             open(HOTLINE_FILE, "w").write("")
 452             open(os.path.join(c1, "introducer.furl"), "w").write("pb://xrndsskn2zuuian5ltnxrte7lnuqdrkz@127.0.0.1:55617/introducer\n")
 453             # now it's safe to start the node
 454         d.addCallback(_cb)
 455
 456         def _start(res):
 457             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", c1], env=os.environ)
 458         d.addCallback(_start)
 459
 460         def _cb2(res):
 461             out, err, rc_or_sig = res
 462             open(HOTLINE_FILE, "w").write("")
 463             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 464             self.failUnlessEqual(rc_or_sig, 0, errstr)
 465             self.failUnlessEqual(out, "", errstr)
 466             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 467
 468             # the parent (twistd) has exited. However, twistd writes the pid
 469             # from the child, not the parent, so we can't expect twistd.pid
 470             # to exist quite yet.
 471
 472             # the node is running, but it might not have made it past the
 473             # first reactor turn yet, and if we kill it too early, it won't
 474             # remove the twistd.pid file. So wait until it does something
 475             # that we know it won't do until after the first turn.
 476         d.addCallback(_cb2)
 477
 478         def _node_has_started():
 479             return os.path.exists(PORTNUMFILE)
 480         d.addCallback(lambda res: self.poll(_node_has_started))
 481
 482         def _started(res):
 483             open(HOTLINE_FILE, "w").write("")
 484             self.failUnless(os.path.exists(TWISTD_PID_FILE))
 485             # rm this so we can detect when the second incarnation is ready
 486             os.unlink(PORTNUMFILE)
 487
 488             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "restart", c1], env=os.environ)
 489         d.addCallback(_started)
 490
 491         def _cb3(res):
 492             out, err, rc_or_sig = res
 493
 494             open(HOTLINE_FILE, "w").write("")
 495             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 496             self.failUnlessEqual(rc_or_sig, 0, errstr)
 497             self.failUnlessEqual(out, "", errstr)
 498             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 499         d.addCallback(_cb3)
 500
 501         # again, the second incarnation of the node might not be ready yet,
 502         # so poll until it is
 503         d.addCallback(lambda res: self.poll(_node_has_started))
 504
 505         # now we can kill it. TODO: On a slow machine, the node might kill
 506         # itself before we get a chance too, especially if spawning the
 507         # 'tahoe stop' command takes a while.
 508         def _stop(res):
 509             open(HOTLINE_FILE, "w").write("")
 510             self.failUnless(os.path.exists(TWISTD_PID_FILE), (TWISTD_PID_FILE, os.listdir(os.path.dirname(TWISTD_PID_FILE))))
 511             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", c1], env=os.environ)
 512         d.addCallback(_stop)
 513
 514         def _cb4(res):
 515             out, err, rc_or_sig = res
 516
 517             open(HOTLINE_FILE, "w").write("")
 518             # the parent has exited by now
 519             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 520             self.failUnlessEqual(rc_or_sig, 0, errstr)
 521             self.failUnlessEqual(out, "", errstr)
 522             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 523             # the parent was supposed to poll and wait until it sees
 524             # twistd.pid go away before it exits, so twistd.pid should be
 525             # gone by now.
 526             self.failIf(os.path.exists(TWISTD_PID_FILE))
 527         d.addCallback(_cb4)
 528         def _remove_hotline(res):
 529             os.unlink(HOTLINE_FILE)
 530             return res
 531         d.addBoth(_remove_hotline)
 532         return d
 533
 534     def test_baddir(self):
 535         self.skip_if_cannot_daemonize()
 536         basedir = self.workdir("test_baddir")
 537         fileutil.make_dirs(basedir)
 538
 539         d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", "--basedir", basedir], env=os.environ)
 540         def _cb(res):
 541             out, err, rc_or_sig = res
 542             self.failUnlessEqual(rc_or_sig, 1)
 543             self.failUnless("does not look like a node directory" in err, err)
 544         d.addCallback(_cb)
 545
 546         def _then_stop_it(res):
 547             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", "--basedir", basedir], env=os.environ)
 548         d.addCallback(_then_stop_it)
 549
 550         def _cb2(res):
 551             out, err, rc_or_sig = res
 552             self.failUnlessEqual(rc_or_sig, 2)
 553             self.failUnless("does not look like a running node directory" in err)
 554         d.addCallback(_cb2)
 555
 556         def _then_start_in_bogus_basedir(res):
 557             not_a_dir = os.path.join(basedir, "bogus")
 558             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", "--basedir", not_a_dir], env=os.environ)
 559         d.addCallback(_then_start_in_bogus_basedir)
 560
 561         def _cb3(res):
 562             out, err, rc_or_sig = res
 563             self.failUnlessEqual(rc_or_sig, 1)
 564             self.failUnless("does not look like a directory at all" in err, err)
 565         d.addCallback(_cb3)
 566         return d
 567
 568     def test_keygen(self):
 569         self.skip_if_cannot_daemonize()
 570         basedir = self.workdir("test_keygen")
 571         c1 = os.path.join(basedir, "c1")
 572         TWISTD_PID_FILE = os.path.join(c1, "twistd.pid")
 573         KEYGEN_FURL_FILE = os.path.join(c1, "key_generator.furl")
 574
 575         d = utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "create-key-generator", "--basedir", c1], env=os.environ)
 576         def _cb(res):
 577             out, err, rc_or_sig = res
 578             self.failUnlessEqual(rc_or_sig, 0)
 579         d.addCallback(_cb)
 580
 581         def _start(res):
 582             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "start", c1], env=os.environ)
 583         d.addCallback(_start)
 584
 585         def _cb2(res):
 586             out, err, rc_or_sig = res
 587             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 588             self.failUnlessEqual(rc_or_sig, 0, errstr)
 589             self.failUnlessEqual(out, "", errstr)
 590             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 591
 592             # the parent (twistd) has exited. However, twistd writes the pid
 593             # from the child, not the parent, so we can't expect twistd.pid
 594             # to exist quite yet.
 595
 596             # the node is running, but it might not have made it past the
 597             # first reactor turn yet, and if we kill it too early, it won't
 598             # remove the twistd.pid file. So wait until it does something
 599             # that we know it won't do until after the first turn.
 600         d.addCallback(_cb2)
 601
 602         def _node_has_started():
 603             return os.path.exists(KEYGEN_FURL_FILE)
 604         d.addCallback(lambda res: self.poll(_node_has_started))
 605
 606         def _started(res):
 607             self.failUnless(os.path.exists(TWISTD_PID_FILE))
 608             # rm this so we can detect when the second incarnation is ready
 609             os.unlink(KEYGEN_FURL_FILE)
 610             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "restart", c1], env=os.environ)
 611         d.addCallback(_started)
 612
 613         def _cb3(res):
 614             out, err, rc_or_sig = res
 615             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 616             self.failUnlessEqual(rc_or_sig, 0, errstr)
 617             self.failUnlessEqual(out, "", errstr)
 618             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 619         d.addCallback(_cb3)
 620
 621         # again, the second incarnation of the node might not be ready yet,
 622         # so poll until it is
 623         d.addCallback(lambda res: self.poll(_node_has_started))
 624
 625         # now we can kill it. TODO: On a slow machine, the node might kill
 626         # itself before we get a chance too, especially if spawning the
 627         # 'tahoe stop' command takes a while.
 628         def _stop(res):
 629             self.failUnless(os.path.exists(TWISTD_PID_FILE))
 630             return utils.getProcessOutputAndValue(bintahoe, args=["--quiet", "stop", c1], env=os.environ)
 631         d.addCallback(_stop)
 632
 633         def _cb4(res):
 634             out, err, rc_or_sig = res
 635             # the parent has exited by now
 636             errstr = "rc=%d, OUT: '%s', ERR: '%s'" % (rc_or_sig, out, err)
 637             self.failUnlessEqual(rc_or_sig, 0, errstr)
 638             self.failUnlessEqual(out, "", errstr)
 639             # self.failUnlessEqual(err, "", errstr) # See test_client_no_noise -- for now we ignore noise.
 640             # the parent was supposed to poll and wait until it sees
 641             # twistd.pid go away before it exits, so twistd.pid should be
 642             # gone by now.
 643             self.failIf(os.path.exists(TWISTD_PID_FILE))
 644         d.addCallback(_cb4)
 645         return d