3 """Automated tests of the apt-p2p functionality.
5 This script runs several automatic tests of some of the functionality in
8 @type tests: C{dictionary}
9 @var tests: all of the tests that can be run.
10 The keys are the test names (strings) which are used on the command-line
11 to identify the tests (can not be 'all' or 'help'). The values are tuples
12 with four elements: a description of the test (C{string}), the bootstrap
13 nodes to start (C{dictionary}), the downloaders to start (C{dictionary},
14 and the apt-get commands to run (C{list}).
16 The bootstrap nodes keys are integers, which must be in the range 1-9.
17 The values are the dictionary of string formatting values for creating
18 the apt-p2p configuration file (see L{apt_p2p_conf_template} below).
20 The downloaders keys are also integers in the range 1-99. The values are
21 the dictionary of string formatting values for creating the apt-p2p
22 configuration file (see L{apt_p2p_conf_template} below).
24 The apt-get commands' list elements are tuples with 2 elements: the
25 downloader to run the command on, and the list of command-line
26 arguments to specify to the apt-get program.
29 @var CWD: the working directory the script was run from
30 @type apt_conf_template: C{string}
31 @var apt_conf_template: the template to use for the apt.conf file
35 from time import sleep, time
36 import sys, os, signal
37 from traceback import print_exc
38 from os.path import exists
40 tests = {'1': ('Start a single bootstrap and downloader, test updating and downloading ' +
45 (1, ['install', 'aboot-base']),
46 (1, ['install', 'aap-doc']),
47 (1, ['install', 'ada-reference-manual']),
48 (1, ['install', 'aspectj-doc']),
49 (1, ['install', 'fop-doc']),
50 (1, ['install', 'jswat-doc']),
51 (1, ['install', 'asis-doc']),
52 (1, ['install', 'bison-doc']),
53 (1, ['install', 'crash-whitepaper']),
54 (1, ['install', 'doc-iana']),
57 '2': ('Start a single bootstrap and 2 downloaders to test downloading from a peer.',
63 (1, ['install', 'aboot-base']),
64 (2, ['install', 'aboot-base']),
65 (1, ['install', 'aap-doc']),
66 (1, ['install', 'ada-reference-manual']),
67 (1, ['install', 'fop-doc']),
68 (1, ['install', 'jswat-doc']),
69 (1, ['install', 'bison-doc']),
70 (1, ['install', 'crash-whitepaper']),
71 (2, ['install', 'aap-doc']),
72 (2, ['install', 'ada-reference-manual']),
73 (2, ['install', 'fop-doc']),
74 (2, ['install', 'jswat-doc']),
75 (2, ['install', 'bison-doc']),
76 (2, ['install', 'crash-whitepaper']),
79 '3': ('Start a single bootstrap and 6 downloaders, to test downloading' +
80 ' speeds from each other.',
89 (1, ['install', 'aboot-base']),
90 (1, ['install', 'ada-reference-manual']),
91 (1, ['install', 'fop-doc']),
92 (1, ['install', 'doc-iana']),
94 (2, ['install', 'aboot-base']),
95 (2, ['install', 'ada-reference-manual']),
96 (2, ['install', 'fop-doc']),
97 (2, ['install', 'doc-iana']),
99 (3, ['install', 'aboot-base']),
100 (3, ['install', 'ada-reference-manual']),
101 (3, ['install', 'fop-doc']),
102 (3, ['install', 'doc-iana']),
104 (4, ['install', 'aboot-base']),
105 (4, ['install', 'ada-reference-manual']),
106 (4, ['install', 'fop-doc']),
107 (4, ['install', 'doc-iana']),
109 (5, ['install', 'aboot-base']),
110 (5, ['install', 'ada-reference-manual']),
111 (5, ['install', 'fop-doc']),
112 (5, ['install', 'doc-iana']),
114 (6, ['install', 'aboot-base']),
115 (6, ['install', 'ada-reference-manual']),
116 (6, ['install', 'fop-doc']),
117 (6, ['install', 'doc-iana']),
120 '4': ('Start a single bootstrap and 1 downloader, requesting the same' +
121 ' packages multiple times to test caching.',
125 (1, ['install', 'aboot-base']),
126 (1, ['install', 'ada-reference-manual']),
127 (1, ['install', 'fop-doc']),
128 (1, ['install', 'doc-iana']),
130 (1, ['install', 'aboot-base']),
131 (1, ['install', 'ada-reference-manual']),
132 (1, ['install', 'fop-doc']),
133 (1, ['install', 'doc-iana']),
135 (1, ['install', 'aboot-base']),
136 (1, ['install', 'ada-reference-manual']),
137 (1, ['install', 'fop-doc']),
138 (1, ['install', 'doc-iana']),
141 '5': ('Start a single bootstrap and 6 downloaders, update all to test' +
142 ' that they can all see each other.',
144 {1: ([], {'suites': 'contrib non-free'}),
145 2: ([], {'suites': 'contrib non-free'}),
146 3: ([], {'suites': 'contrib non-free'}),
147 4: ([], {'suites': 'contrib non-free'}),
148 5: ([], {'suites': 'contrib non-free'}),
149 6: ([], {'suites': 'contrib non-free'})},
158 '6': ('Test caching with multiple apt-get updates.',
167 '7': ('Test pipelining of multiple simultaneous downloads.',
171 (1, ['install', 'aboot-base', 'aap-doc', 'ada-reference-manual',
172 'aspectj-doc', 'fop-doc', 'jswat-doc', 'asis-doc',
173 'bison-doc', 'crash-whitepaper', 'doc-iana',
174 'bash-doc', 'apt-howto-common', 'autotools-dev',
175 'aptitude-doc-en', 'armagetron-common', 'asr-manpages',
176 'atomix-data', 'alcovebook-sgml-doc', 'alamin-doc',
177 'aegis-doc', 'afbackup-common', 'airstrike-common',
181 '8': ('Test pipelining of multiple simultaneous downloads with many peers.',
190 (1, ['install', 'aboot-base', 'aap-doc', 'ada-reference-manual',
191 'aspectj-doc', 'fop-doc', 'jswat-doc', 'asis-doc',
192 'bison-doc', 'crash-whitepaper', 'doc-iana',
193 'bash-doc', 'apt-howto-common', 'autotools-dev',
194 'aptitude-doc-en', 'armagetron-common', 'asr-manpages',
195 'atomix-data', 'alcovebook-sgml-doc', 'alamin-doc',
196 'aegis-doc', 'afbackup-common', 'airstrike-common',
199 (2, ['install', 'aboot-base', 'aap-doc', 'ada-reference-manual',
200 'aspectj-doc', 'fop-doc', 'jswat-doc', 'asis-doc',
201 'bison-doc', 'crash-whitepaper', 'doc-iana',
202 'bash-doc', 'apt-howto-common', 'autotools-dev',
203 'aptitude-doc-en', 'armagetron-common', 'asr-manpages',
204 'atomix-data', 'alcovebook-sgml-doc', 'alamin-doc',
205 'aegis-doc', 'afbackup-common', 'airstrike-common',
208 (3, ['install', 'aboot-base', 'aap-doc', 'ada-reference-manual',
209 'aspectj-doc', 'fop-doc', 'jswat-doc', 'asis-doc',
210 'bison-doc', 'crash-whitepaper', 'doc-iana',
211 'bash-doc', 'apt-howto-common', 'autotools-dev',
212 'aptitude-doc-en', 'armagetron-common', 'asr-manpages',
213 'atomix-data', 'alcovebook-sgml-doc', 'alamin-doc',
214 'aegis-doc', 'afbackup-common', 'airstrike-common',
217 (4, ['install', 'aboot-base', 'aap-doc', 'ada-reference-manual',
218 'aspectj-doc', 'fop-doc', 'jswat-doc', 'asis-doc',
219 'bison-doc', 'crash-whitepaper', 'doc-iana',
220 'bash-doc', 'apt-howto-common', 'autotools-dev',
221 'aptitude-doc-en', 'armagetron-common', 'asr-manpages',
222 'atomix-data', 'alcovebook-sgml-doc', 'alamin-doc',
223 'aegis-doc', 'afbackup-common', 'airstrike-common',
226 (5, ['install', 'aboot-base', 'aap-doc', 'ada-reference-manual',
227 'aspectj-doc', 'fop-doc', 'jswat-doc', 'asis-doc',
228 'bison-doc', 'crash-whitepaper', 'doc-iana',
229 'bash-doc', 'apt-howto-common', 'autotools-dev',
230 'aptitude-doc-en', 'armagetron-common', 'asr-manpages',
231 'atomix-data', 'alcovebook-sgml-doc', 'alamin-doc',
232 'aegis-doc', 'afbackup-common', 'airstrike-common',
235 (6, ['install', 'aboot-base', 'aap-doc', 'ada-reference-manual',
236 'aspectj-doc', 'fop-doc', 'jswat-doc', 'asis-doc',
237 'bison-doc', 'crash-whitepaper', 'doc-iana',
238 'bash-doc', 'apt-howto-common', 'autotools-dev',
239 'aptitude-doc-en', 'armagetron-common', 'asr-manpages',
240 'atomix-data', 'alcovebook-sgml-doc', 'alamin-doc',
241 'aegis-doc', 'afbackup-common', 'airstrike-common',
247 assert 'all' not in tests
248 assert 'help' not in tests
251 apt_conf_template = """
253 // Location of the state dir
258 userstatus "status.user";
259 cdroms "cdroms.list";
262 // Location of the cache dir
263 Cache "var/cache/apt/" {
264 Archives "archives/";
265 srcpkgcache "srcpkgcache.bin";
266 pkgcache "pkgcache.bin";
271 SourceList "sources.list";
273 Preferences "preferences";
277 // Locations of binaries
279 methods "/usr/lib/apt/methods/";
282 dpkg "/usr/bin/dpkg --simulate";
283 dpkg-source "/usr/bin/dpkg-source";
284 dpkg-buildpackage "/usr/bin/dpkg-buildpackage";
285 apt-get "/usr/bin/apt-get";
286 apt-cache "/usr/bin/apt-cache";
290 /* Options you can set to see some debugging text They correspond to names
291 of classes in the source code */
294 pkgProblemResolver "false";
295 pkgDepCache::AutoInstall "false"; // what packages apt install to satify dependencies
297 pkgAcquire::Worker "false";
298 pkgAcquire::Auth "false";
300 pkgDPkgProgressReporting "false";
301 pkgOrderList "false";
304 pkgInitialize "false"; // This one will dump the configuration space
306 Acquire::Ftp "false"; // Show ftp command traffic
307 Acquire::Http "false"; // Show http command traffic
308 Acquire::Debtorrent "false"; // Show http command traffic
309 Acquire::gpgv "false"; // Show the gpgv traffic
310 aptcdrom "false"; // Show found package files
315 apt_p2p_conf_template = """
318 # Port to listen on for all requests (TCP and UDP)
321 # The rate to limit sending data to peers to, in KBytes/sec.
322 # Set this to 0 to not limit the upload bandwidth.
325 # Directory to store the downloaded files in
326 CACHE_DIR = %(CACHE_DIR)s
328 # Other directories containing packages to share with others
329 # WARNING: all files in these directories will be hashed and available
330 # for everybody to download
333 # User name to try and run as
336 # Whether it's OK to use an IP addres from a known local/private range
339 # Unload the packages cache after an interval of inactivity this long.
340 # The packages cache uses a lot of memory, and only takes a few seconds
341 # to reload when a new request arrives.
342 UNLOAD_PACKAGES_CACHE = 5m
344 # Refresh the DHT keys after this much time has passed.
345 # This should be a time slightly less than the DHT's KEY_EXPIRE value.
348 # Which DHT implementation to use.
349 # It must be possile to do "from <DHT>.DHT import DHT" to get a class that
350 # implements the IDHT interface.
351 DHT = apt_p2p_Khashmir
353 # Whether to only run the DHT (for providing only a bootstrap node)
354 DHT-ONLY = %(DHT-ONLY)s
357 # bootstrap nodes to contact to join the DHT
358 BOOTSTRAP = %(BOOTSTRAP)s
360 # whether this node is a bootstrap node
361 BOOTSTRAP_NODE = %(BOOTSTRAP_NODE)s
363 # Kademlia "K" constant, this should be an even number
366 # SHA1 is 160 bits long
369 # checkpoint every this many seconds
370 CHECKPOINT_INTERVAL = 5m
372 # concurrent xmlrpc calls per find node/value request!
375 # how many hosts to post to
378 # How many values to attempt to retrieve from the DHT.
379 # Setting this to 0 will try and get all values (which could take a while if
380 # a lot of nodes have values). Setting it negative will try to get that
381 # number of results from only the closest STORE_REDUNDANCY nodes to the hash.
382 # The default is a large negative number so all values from the closest
383 # STORE_REDUNDANCY nodes will be retrieved.
384 RETRIEVE_VALUES = -10000
386 # how many times in a row a node can fail to respond before it's booted from the routing table
389 # never ping a node more often than this
390 MIN_PING_INTERVAL = 15m
392 # refresh buckets that haven't been touched in this long
393 BUCKET_STALENESS = 1h
395 # expire entries older than this
398 # whether to spew info about the requests/responses in the protocol
403 """Remove all the files and directories below a top-level one.
406 @param top: the top-level directory to start at
410 for root, dirs, files in os.walk(top, topdown=False):
412 os.remove(os.path.join(root, name))
414 os.rmdir(os.path.join(root, name))
417 """Join together a list of directories into a path string.
419 @type dir: C{list} of C{string}
420 @param dir: the path to join together
422 @return: the joined together path
428 joined = os.path.join(joined, i)
432 """Create all the directories to make a path.
434 @type dir: C{list} of C{string}
435 @param dir: the path to create
438 if not os.path.exists(join(dir)):
439 os.makedirs(join(dir))
442 """Create an empty file.
444 @type path: C{list} of C{string}
445 @param path: the path to create
449 f = open(join(path), 'w')
452 def start(cmd, args, work_dir = None):
453 """Fork and start a background process running.
456 @param cmd: the name of the command to run
457 @type args: C{list} of C{string}
458 @param args: the argument to pass to the command
459 @type work_dir: C{string}
460 @param work_dir: the directory to change to to execute the child process in
461 (optional, defaults to the current directory)
463 @return: the PID of the forked process
467 new_cmd = [cmd] + args
468 pid = os.spawnvp(os.P_NOWAIT, new_cmd[0], new_cmd)
472 """Stop a forked background process that is running.
475 @param pid: the PID of the process to stop
477 @return: the return status code from the child
481 # First try a keyboard interrupt
482 os.kill(pid, signal.SIGINT)
485 (r_pid, r_value) = os.waitpid(pid, os.WNOHANG)
489 # Try a keyboard interrupt again, just in case
490 os.kill(pid, signal.SIGINT)
493 (r_pid, r_value) = os.waitpid(pid, os.WNOHANG)
498 os.kill(pid, signal.SIGTERM)
501 (r_pid, r_value) = os.waitpid(pid, os.WNOHANG)
505 # Finally a kill, don't return until killed
506 os.kill(pid, signal.SIGKILL)
509 (r_pid, r_value) = os.waitpid(pid, os.WNOHANG)
513 def apt_get(num_down, cmd):
514 """Start an apt-get process in the background.
516 The default argument specified to the apt-get invocation are
517 'apt-get -d -q -c <conf_file>'. Any additional arguments (including
518 the apt-get action to use) should be specified.
520 @type num_down: C{int}
521 @param num_down: the number of the downloader to use
522 @type cmd: C{list} of C{string}
523 @param cmd: the arguments to pass to the apt-get process
525 @return: the PID of the background process
529 print '*************** apt-get (' + str(num_down) + ') ' + ' '.join(cmd) + ' ****************'
530 apt_conf = join([down_dir(num_down), 'etc', 'apt', 'apt.conf'])
531 dpkg_status = join([down_dir(num_down), 'var', 'lib', 'dpkg', 'status'])
532 args = ['-d', '-c', apt_conf, '-o', 'Dir::state::status='+dpkg_status] + cmd
533 pid = start('apt-get', args)
536 def bootstrap_address(num_boot):
537 """Determine the bootstrap address to use for a node.
539 @type num_boot: C{int}
540 @param num_boot: the number of the bootstrap node
542 @return: the bootstrap address to use
546 return 'localhost:1' + str(num_boot) + '969'
548 def down_dir(num_down):
549 """Determine the working directory to use for a downloader.
551 @type num_down: C{int}
552 @param num_down: the number of the downloader
554 @return: the downloader's directory
558 return os.path.join(CWD,'downloader' + str(num_down))
560 def boot_dir(num_boot):
561 """Determine the working directory to use for a bootstrap node.
563 @type num_boot: C{int}
564 @param num_boot: the number of the bootstrap node
566 @return: the bootstrap node's directory
570 return os.path.join(CWD,'bootstrap' + str(num_boot))
572 def start_downloader(bootstrap_addresses, num_down, options = {},
573 mirror = 'ftp.us.debian.org/debian',
574 suites = 'main contrib non-free', clean = True):
575 """Initialize a new downloader process.
577 The default arguments specified to the downloader invocation are
578 the configuration directory, apt port, minport, maxport and the
580 Any additional arguments needed should be specified by L{options}.
582 @type num_down: C{int}
583 @param num_down: the number of the downloader to use
584 @type options: C{dictionary}
585 @param options: the dictionary of string formatting values for creating
586 the apt-p2p configuration file (see L{apt_p2p_conf_template} above).
587 (optional, defaults to only using the default arguments)
588 @type mirror: C{string}
589 @param mirror: the Debian mirror to use
590 (optional, defaults to 'ftp.us.debian.org/debian')
591 @type suites: C{string}
592 @param suites: space separated list of suites to download
593 (optional, defaults to 'main contrib non-free')
594 @type clean: C{boolean}
595 @param clean: whether to remove any previous downloader files
596 (optional, defaults to removing them)
598 @return: the PID of the downloader process
602 assert num_down < 100
604 print '************************** Starting Downloader ' + str(num_down) + ' **************************'
606 downloader_dir = down_dir(num_down)
614 # Create the directory structure needed by apt
615 makedirs([downloader_dir, 'etc', 'apt', 'apt.conf.d'])
616 makedirs([downloader_dir, 'var', 'lib', 'apt', 'lists', 'partial'])
617 makedirs([downloader_dir, 'var', 'lib', 'dpkg'])
618 makedirs([downloader_dir, 'var', 'cache', 'apt', 'archives', 'partial'])
619 touch([downloader_dir, 'var', 'lib', 'apt', 'lists', 'lock'])
620 touch([downloader_dir, 'var', 'lib', 'dpkg', 'lock'])
621 touch([downloader_dir, 'var', 'lib', 'dpkg', 'status'])
622 touch([downloader_dir, 'var', 'cache', 'apt', 'archives', 'lock'])
624 # Create apt's config files
625 f = open(join([downloader_dir, 'etc', 'apt', 'sources.list']), 'w')
626 f.write('deb http://localhost:1%02d77/%s/ stable %s\n' % (num_down, mirror, suites))
629 f = open(join([downloader_dir, 'etc', 'apt', 'apt.conf']), 'w')
630 f.write('Dir "' + downloader_dir + '"')
631 f.write(apt_conf_template)
634 defaults = {'PORT': '1%02d77' % num_down,
635 'CACHE_DIR': downloader_dir,
637 'BOOTSTRAP': bootstrap_addresses,
638 'BOOTSTRAP_NODE': 'no'}
641 defaults[k] = options[k]
642 f = open(join([downloader_dir, 'apt-p2p.conf']), 'w')
643 f.write(apt_p2p_conf_template % defaults)
646 pid = start('python', [join([sys.path[0], 'apt-p2p.py']),
647 '--config-file=' + join([downloader_dir, 'apt-p2p.conf']),
648 '--log-file=' + join([downloader_dir, 'apt-p2p.log']),],
652 def start_bootstrap(bootstrap_addresses, num_boot, options = [], clean = True):
653 """Initialize a new bootstrap node process.
655 The default arguments specified to the apt-p2p invocation are
656 the state file and port to use. Any additional arguments needed
657 should be specified by L{options}.
659 @type num_boot: C{int}
660 @param num_boot: the number of the bootstrap node to use
661 @type options: C{list} of C{string}
662 @param options: the arguments to pass to the bootstrap node
663 (optional, defaults to only using the default arguments)
664 @type clean: C{boolean}
665 @param clean: whether to remove any previous bootstrap node files
666 (optional, defaults to removing them)
668 @return: the PID of the downloader process
674 print '************************** Starting Bootstrap ' + str(num_boot) + ' **************************'
676 bootstrap_dir = boot_dir(num_boot)
684 makedirs([bootstrap_dir])
686 defaults = {'PORT': '1%d969' % num_boot,
687 'CACHE_DIR': bootstrap_dir,
689 'BOOTSTRAP': bootstrap_addresses,
690 'BOOTSTRAP_NODE': 'yes'}
693 defaults[k] = options[k]
694 f = open(join([bootstrap_dir, 'apt-p2p.conf']), 'w')
695 f.write(apt_p2p_conf_template % defaults)
698 pid = start('python', [join([sys.path[0], 'apt-p2p.py']),
699 '--config-file=' + join([bootstrap_dir, 'apt-p2p.conf']),
700 '--log-file=' + join([bootstrap_dir, 'apt-p2p.log']),],
705 def run_test(bootstraps, downloaders, apt_get_queue):
706 """Run a single test.
708 @type bootstraps: C{dictionary} of {C{int}: C{list} of C{string}}
709 @param bootstraps: the bootstrap nodes to start, keys are the bootstrap numbers and
710 values are the list of options to invoke the bootstrap node with
711 @type downloaders: C{dictionary} of {C{int}: (C{int}, C{list} of C{string})}
712 @param downloaders: the downloaders to start, keys are the downloader numbers and
713 values are the list of options to invoke the downloader with
714 @type apt_get_queue: C{list} of (C{int}, C{list} of C{string})
715 @param apt_get_queue: the apt-get downloader to use and commands to execute
716 @rtype: C{list} of (C{float}, C{int})
717 @return: the execution time and returned status code for each element of apt_get_queue
721 running_bootstraps = {}
722 running_downloaders = {}
727 boot_keys = bootstraps.keys()
729 bootstrap_addresses = bootstrap_address(boot_keys[0])
730 for i in xrange(1, len(boot_keys)):
731 bootstrap_addresses += '\n ' + bootstrap_address(boot_keys[i])
733 for k, v in bootstraps.items():
734 running_bootstraps[k] = start_bootstrap(bootstrap_addresses, k, v)
738 for k, v in downloaders.items():
739 running_downloaders[k] = start_downloader(bootstrap_addresses, k, v)
743 for (num_down, cmd) in apt_get_queue:
744 running_apt_get[num_down] = apt_get(num_down, cmd)
746 (pid, r_value) = os.waitpid(running_apt_get[num_down], 0)
747 elapsed = time() - start_time
748 del running_apt_get[num_down]
749 r_value = r_value / 256
750 apt_get_results.append((elapsed, r_value))
753 print '********** apt-get completed successfully in ' + str(elapsed) + ' sec. *****************'
755 print '********** apt-get finished with status ' + str(r_value) + ' in ' + str(elapsed) + ' sec. ************'
760 print '************************** Exception occurred **************************'
762 print '************************** will attempt to shut down *******************'
764 print '*********************** shutting down the apt-gets *******************'
765 for k, v in running_apt_get.items():
767 print 'apt-get', k, stop(v)
769 print '************************** Exception occurred **************************'
774 print '*********************** shutting down the downloaders *******************'
775 for k, v in running_downloaders.items():
777 print 'downloader', k, stop(v)
779 print '************************** Exception occurred **************************'
784 print '************************** shutting down the bootstraps *******************'
785 for k, v in running_bootstraps.items():
787 print 'bootstrap', k, stop(v)
789 print '************************** Exception occurred **************************'
792 print '************************** Test Results *******************'
794 for (num_down, cmd) in apt_get_queue:
796 s = str(num_down) + ': "apt-get ' + ' '.join(cmd) + '" '
797 if len(apt_get_results) > i:
798 (elapsed, r_value) = apt_get_results[i]
799 s += 'took ' + str(elapsed) + ' secs (' + str(r_value) + ')'
801 s += 'did not complete'
804 return apt_get_results
807 """Get the usage information to display to the user.
810 @return: the usage information to display
814 s = 'Usage: ' + sys.argv[0] + ' (all|<test>|help)\n\n'
815 s += ' all - run all the tests\n'
816 s += ' help - display this usage information\n'
817 s += ' <test> - run the <test> test (see list below for valid tests)\n\n'
822 s += 'test "' + str(k) + '" - ' + v[0] + '\n'
826 if __name__ == '__main__':
827 if len(sys.argv) != 2:
829 elif sys.argv[1] == 'all':
830 for k, v in tests.items():
831 run_test(v[1], v[2], v[3])
832 elif sys.argv[1] in tests:
833 v = tests[sys.argv[1]]
834 run_test(v[1], v[2], v[3])
835 elif sys.argv[1] == 'help':
838 print 'Unknown test to run:', sys.argv[1], '\n'