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|
#! /usr/bin/env python
"""Regression test.
This will find all modules whose name is "test_*" in the test
directory, and run them. Various command line options provide
additional facilities.
Command line options:
-v: verbose -- run tests in verbose mode with output to stdout
-q: quiet -- don't print anything except if a test fails
-g: generate -- write the output file for a test instead of comparing it
-x: exclude -- arguments are tests to *exclude*
-s: single -- run only a single test (see below)
-r: random -- randomize test execution order
-f: fromfile -- read names of tests to run from a file (see below)
-l: findleaks -- if GC is available detect tests that leak memory
-u: use -- specify which special resource intensive tests to run
-h: help -- print this text and exit
-t: threshold -- call gc.set_threshold(N)
If non-option arguments are present, they are names for tests to run,
unless -x is given, in which case they are names for tests not to run.
If no test names are given, all tests are run.
-v is incompatible with -g and does not compare test output files.
-s means to run only a single test and exit. This is useful when
doing memory analysis on the Python interpreter (which tend to consume
too many resources to run the full regression test non-stop). The
file /tmp/pynexttest is read to find the next test to run. If this
file is missing, the first test_*.py file in testdir or on the command
line is used. (actually tempfile.gettempdir() is used instead of
/tmp).
-f reads the names of tests from the file given as f's argument, one
or more test names per line. Whitespace is ignored. Blank lines and
lines beginning with '#' are ignored. This is especially useful for
whittling down failures involving interactions among tests.
-u is used to specify which special resource intensive tests to run,
such as those requiring large file support or network connectivity.
The argument is a comma-separated list of words indicating the
resources to test. Currently only the following are defined:
all - Enable all special resources.
curses - Tests that use curses and will modify the terminal's
state and output modes.
largefile - It is okay to run some test that may create huge
files. These tests can take a long time and may
consume >2GB of disk space temporarily.
network - It is okay to run tests that use external network
resource, e.g. testing SSL support for sockets.
bsddb - It is okay to run the bsddb testsuite, which takes
a long time to complete.
To enable all resources except one, use '-uall,-<resource>'. For
example, to run all the tests except for the bsddb tests, give the
option '-uall,-bsddb'.
"""
import sys
import os
import getopt
import traceback
import random
import StringIO
import warnings
from sets import Set
# I see no other way to suppress these warnings;
# putting them in test_grammar.py has no effect:
warnings.filterwarnings("ignore", "hex/oct constants", FutureWarning,
".*test.test_grammar$")
if sys.maxint > 0x7fffffff:
# Also suppress them in <string>, because for 64-bit platforms,
# that's where test_grammar.py hides them.
warnings.filterwarnings("ignore", "hex/oct constants", FutureWarning,
"<string>")
# MacOSX (a.k.a. Darwin) has a default stack size that is too small
# for deeply recursive regular expressions. We see this as crashes in
# the Python test suite when running test_re.py and test_sre.py. The
# fix is to set the stack limit to 2048.
# This approach may also be useful for other Unixy platforms that
# suffer from small default stack limits.
if sys.platform == 'darwin':
try:
import resource
except ImportError:
pass
else:
soft, hard = resource.getrlimit(resource.RLIMIT_STACK)
newsoft = min(hard, max(soft, 1024*2048))
resource.setrlimit(resource.RLIMIT_STACK, (newsoft, hard))
from test import test_support
RESOURCE_NAMES = ('curses', 'largefile', 'network', 'bsddb')
def usage(code, msg=''):
print __doc__
if msg: print msg
sys.exit(code)
def main(tests=None, testdir=None, verbose=0, quiet=0, generate=0,
exclude=0, single=0, randomize=0, fromfile=None, findleaks=0,
use_resources=None):
"""Execute a test suite.
This also parses command-line options and modifies its behavior
accordingly.
tests -- a list of strings containing test names (optional)
testdir -- the directory in which to look for tests (optional)
Users other than the Python test suite will certainly want to
specify testdir; if it's omitted, the directory containing the
Python test suite is searched for.
If the tests argument is omitted, the tests listed on the
command-line will be used. If that's empty, too, then all *.py
files beginning with test_ will be used.
The other default arguments (verbose, quiet, generate, exclude,
single, randomize, findleaks, and use_resources) allow programmers
calling main() directly to set the values that would normally be
set by flags on the command line.
"""
test_support.record_original_stdout(sys.stdout)
try:
opts, args = getopt.getopt(sys.argv[1:], 'hvgqxsrf:lu:t:',
['help', 'verbose', 'quiet', 'generate',
'exclude', 'single', 'random', 'fromfile',
'findleaks', 'use=', 'threshold='])
except getopt.error, msg:
usage(2, msg)
# Defaults
if use_resources is None:
use_resources = []
for o, a in opts:
if o in ('-h', '--help'):
usage(0)
elif o in ('-v', '--verbose'):
verbose += 1
elif o in ('-q', '--quiet'):
quiet = 1;
verbose = 0
elif o in ('-g', '--generate'):
generate = 1
elif o in ('-x', '--exclude'):
exclude = 1
elif o in ('-s', '--single'):
single = 1
elif o in ('-r', '--randomize'):
randomize = 1
elif o in ('-f', '--fromfile'):
fromfile = a
elif o in ('-l', '--findleaks'):
findleaks = 1
elif o in ('-t', '--threshold'):
import gc
gc.set_threshold(int(a))
elif o in ('-u', '--use'):
u = [x.lower() for x in a.split(',')]
for r in u:
if r == 'all':
use_resources[:] = RESOURCE_NAMES
continue
remove = False
if r[0] == '-':
remove = True
r = r[1:]
if r not in RESOURCE_NAMES:
usage(1, 'Invalid -u/--use option: ' + a)
if remove:
if r in use_resources:
use_resources.remove(r)
elif r not in use_resources:
use_resources.append(r)
if generate and verbose:
usage(2, "-g and -v don't go together!")
if single and fromfile:
usage(2, "-s and -f don't go together!")
good = []
bad = []
skipped = []
if findleaks:
try:
import gc
except ImportError:
print 'No GC available, disabling findleaks.'
findleaks = 0
else:
# Uncomment the line below to report garbage that is not
# freeable by reference counting alone. By default only
# garbage that is not collectable by the GC is reported.
#gc.set_debug(gc.DEBUG_SAVEALL)
found_garbage = []
if single:
from tempfile import gettempdir
filename = os.path.join(gettempdir(), 'pynexttest')
try:
fp = open(filename, 'r')
next = fp.read().strip()
tests = [next]
fp.close()
except IOError:
pass
if fromfile:
tests = []
fp = open(fromfile)
for line in fp:
guts = line.split() # assuming no test has whitespace in its name
if guts and not guts[0].startswith('#'):
tests.extend(guts)
fp.close()
# Strip .py extensions.
if args:
args = map(removepy, args)
if tests:
tests = map(removepy, tests)
stdtests = STDTESTS[:]
nottests = NOTTESTS[:]
if exclude:
for arg in args:
if arg in stdtests:
stdtests.remove(arg)
nottests[:0] = args
args = []
tests = tests or args or findtests(testdir, stdtests, nottests)
if single:
tests = tests[:1]
if randomize:
random.shuffle(tests)
test_support.verbose = verbose # Tell tests to be moderately quiet
test_support.use_resources = use_resources
save_modules = sys.modules.keys()
for test in tests:
if not quiet:
print test
sys.stdout.flush()
ok = runtest(test, generate, verbose, quiet, testdir)
if ok > 0:
good.append(test)
elif ok == 0:
bad.append(test)
else:
skipped.append(test)
if findleaks:
gc.collect()
if gc.garbage:
print "Warning: test created", len(gc.garbage),
print "uncollectable object(s)."
# move the uncollectable objects somewhere so we don't see
# them again
found_garbage.extend(gc.garbage)
del gc.garbage[:]
# Unload the newly imported modules (best effort finalization)
for module in sys.modules.keys():
if module not in save_modules and module.startswith("test."):
test_support.unload(module)
# The lists won't be sorted if running with -r
good.sort()
bad.sort()
skipped.sort()
if good and not quiet:
if not bad and not skipped and len(good) > 1:
print "All",
print count(len(good), "test"), "OK."
if verbose:
print "CAUTION: stdout isn't compared in verbose mode:"
print "a test that passes in verbose mode may fail without it."
if bad:
print count(len(bad), "test"), "failed:"
printlist(bad)
if skipped and not quiet:
print count(len(skipped), "test"), "skipped:"
printlist(skipped)
e = _ExpectedSkips()
plat = sys.platform
if e.isvalid():
surprise = Set(skipped) - e.getexpected()
if surprise:
print count(len(surprise), "skip"), \
"unexpected on", plat + ":"
printlist(surprise)
else:
print "Those skips are all expected on", plat + "."
else:
print "Ask someone to teach regrtest.py about which tests are"
print "expected to get skipped on", plat + "."
if single:
alltests = findtests(testdir, stdtests, nottests)
for i in range(len(alltests)):
if tests[0] == alltests[i]:
if i == len(alltests) - 1:
os.unlink(filename)
else:
fp = open(filename, 'w')
fp.write(alltests[i+1] + '\n')
fp.close()
break
else:
os.unlink(filename)
sys.exit(len(bad) > 0)
STDTESTS = [
'test_grammar',
'test_opcodes',
'test_operations',
'test_builtin',
'test_exceptions',
'test_types',
]
NOTTESTS = [
'test_support',
'test_b1',
'test_b2',
'test_future1',
'test_future2',
'test_future3',
]
def findtests(testdir=None, stdtests=STDTESTS, nottests=NOTTESTS):
"""Return a list of all applicable test modules."""
if not testdir: testdir = findtestdir()
names = os.listdir(testdir)
tests = []
for name in names:
if name[:5] == "test_" and name[-3:] == os.extsep+"py":
modname = name[:-3]
if modname not in stdtests and modname not in nottests:
tests.append(modname)
tests.sort()
return stdtests + tests
def runtest(test, generate, verbose, quiet, testdir = None):
"""Run a single test.
test -- the name of the test
generate -- if true, generate output, instead of running the test
and comparing it to a previously created output file
verbose -- if true, print more messages
quiet -- if true, don't print 'skipped' messages (probably redundant)
testdir -- test directory
"""
test_support.unload(test)
if not testdir: testdir = findtestdir()
outputdir = os.path.join(testdir, "output")
outputfile = os.path.join(outputdir, test)
if verbose:
cfp = None
else:
cfp = StringIO.StringIO()
try:
save_stdout = sys.stdout
try:
if cfp:
sys.stdout = cfp
print test # Output file starts with test name
if test.startswith('test.'):
abstest = test
else:
# Always import it from the test package
abstest = 'test.' + test
the_package = __import__(abstest, globals(), locals(), [])
the_module = getattr(the_package, test)
# Most tests run to completion simply as a side-effect of
# being imported. For the benefit of tests that can't run
# that way (like test_threaded_import), explicitly invoke
# their test_main() function (if it exists).
indirect_test = getattr(the_module, "test_main", None)
if indirect_test is not None:
indirect_test()
finally:
sys.stdout = save_stdout
except (ImportError, test_support.TestSkipped), msg:
if not quiet:
print test, "skipped --", msg
sys.stdout.flush()
return -1
except KeyboardInterrupt:
raise
except test_support.TestFailed, msg:
print "test", test, "failed --", msg
sys.stdout.flush()
return 0
except:
type, value = sys.exc_info()[:2]
print "test", test, "crashed --", str(type) + ":", value
sys.stdout.flush()
if verbose:
traceback.print_exc(file=sys.stdout)
sys.stdout.flush()
return 0
else:
if not cfp:
return 1
output = cfp.getvalue()
if generate:
if output == test + "\n":
if os.path.exists(outputfile):
# Write it since it already exists (and the contents
# may have changed), but let the user know it isn't
# needed:
print "output file", outputfile, \
"is no longer needed; consider removing it"
else:
# We don't need it, so don't create it.
return 1
fp = open(outputfile, "w")
fp.write(output)
fp.close()
return 1
if os.path.exists(outputfile):
fp = open(outputfile, "r")
expected = fp.read()
fp.close()
else:
expected = test + "\n"
if output == expected:
return 1
print "test", test, "produced unexpected output:"
sys.stdout.flush()
reportdiff(expected, output)
sys.stdout.flush()
return 0
def reportdiff(expected, output):
import difflib
print "*" * 70
a = expected.splitlines(1)
b = output.splitlines(1)
sm = difflib.SequenceMatcher(a=a, b=b)
tuples = sm.get_opcodes()
def pair(x0, x1):
# x0:x1 are 0-based slice indices; convert to 1-based line indices.
x0 += 1
if x0 >= x1:
return "line " + str(x0)
else:
return "lines %d-%d" % (x0, x1)
for op, a0, a1, b0, b1 in tuples:
if op == 'equal':
pass
elif op == 'delete':
print "***", pair(a0, a1), "of expected output missing:"
for line in a[a0:a1]:
print "-", line,
elif op == 'replace':
print "*** mismatch between", pair(a0, a1), "of expected", \
"output and", pair(b0, b1), "of actual output:"
for line in difflib.ndiff(a[a0:a1], b[b0:b1]):
print line,
elif op == 'insert':
print "***", pair(b0, b1), "of actual output doesn't appear", \
"in expected output after line", str(a1)+":"
for line in b[b0:b1]:
print "+", line,
else:
print "get_opcodes() returned bad tuple?!?!", (op, a0, a1, b0, b1)
print "*" * 70
def findtestdir():
if __name__ == '__main__':
file = sys.argv[0]
else:
file = __file__
testdir = os.path.dirname(file) or os.curdir
return testdir
def removepy(name):
if name.endswith(os.extsep + "py"):
name = name[:-3]
return name
def count(n, word):
if n == 1:
return "%d %s" % (n, word)
else:
return "%d %ss" % (n, word)
def printlist(x, width=70, indent=4):
"""Print the elements of iterable x to stdout.
Optional arg width (default 70) is the maximum line length.
Optional arg indent (default 4) is the number of blanks with which to
begin each line.
"""
from textwrap import fill
blanks = ' ' * indent
print fill(' '.join(map(str, x)), width,
initial_indent=blanks, subsequent_indent=blanks)
# Map sys.platform to a string containing the basenames of tests
# expected to be skipped on that platform.
#
# Special cases:
# test_pep277
# The _ExpectedSkips constructor adds this to the set of expected
# skips if not os.path.supports_unicode_filenames.
# test_normalization
# Whether a skip is expected here depends on whether a large test
# input file has been downloaded. test_normalization.skip_expected
# controls that.
# test_socket_ssl
# Controlled by test_socket_ssl.skip_expected. Requires the network
# resource, and a socket module with ssl support.
_expectations = {
'win32':
"""
test_al
test_bsddb3
test_cd
test_cl
test_commands
test_crypt
test_curses
test_dbm
test_dl
test_email_codecs
test_fcntl
test_fork1
test_gdbm
test_gl
test_grp
test_imgfile
test_largefile
test_linuxaudiodev
test_mhlib
test_mpz
test_nis
test_openpty
test_ossaudiodev
test_poll
test_pty
test_pwd
test_resource
test_signal
test_socketserver
test_sunaudiodev
test_timing
""",
'linux2':
"""
test_al
test_cd
test_cl
test_curses
test_dl
test_email_codecs
test_gl
test_imgfile
test_largefile
test_nis
test_ntpath
test_socketserver
test_sunaudiodev
test_unicode_file
test_winreg
test_winsound
""",
'mac':
"""
test_al
test_bsddb
test_cd
test_cl
test_commands
test_crypt
test_curses
test_dbm
test_dl
test_fcntl
test_fork1
test_gl
test_grp
test_imgfile
test_largefile
test_linuxaudiodev
test_locale
test_mmap
test_nis
test_ntpath
test_openpty
test_poll
test_popen2
test_pty
test_pwd
test_signal
test_socketserver
test_sunaudiodev
test_sundry
test_timing
test_unicode_file
test_winreg
test_winsound
""",
'unixware7':
"""
test_al
test_bsddb
test_cd
test_cl
test_dl
test_gl
test_imgfile
test_largefile
test_linuxaudiodev
test_minidom
test_nis
test_ntpath
test_openpty
test_pyexpat
test_sax
test_socketserver
test_sunaudiodev
test_sundry
test_unicode_file
test_winreg
test_winsound
""",
'openunix8':
"""
test_al
test_bsddb
test_cd
test_cl
test_dl
test_gl
test_imgfile
test_largefile
test_linuxaudiodev
test_minidom
test_nis
test_ntpath
test_openpty
test_pyexpat
test_sax
test_socketserver
test_sunaudiodev
test_sundry
test_unicode_file
test_winreg
test_winsound
""",
'sco_sv3':
"""
test_al
test_asynchat
test_bsddb
test_cd
test_cl
test_dl
test_fork1
test_gettext
test_gl
test_imgfile
test_largefile
test_linuxaudiodev
test_locale
test_minidom
test_nis
test_ntpath
test_openpty
test_pyexpat
test_queue
test_sax
test_socketserver
test_sunaudiodev
test_sundry
test_thread
test_threaded_import
test_threadedtempfile
test_threading
test_unicode_file
test_winreg
test_winsound
""",
'riscos':
"""
test_al
test_asynchat
test_bsddb
test_cd
test_cl
test_commands
test_crypt
test_dbm
test_dl
test_fcntl
test_fork1
test_gdbm
test_gl
test_grp
test_imgfile
test_largefile
test_linuxaudiodev
test_locale
test_mmap
test_nis
test_ntpath
test_openpty
test_poll
test_popen2
test_pty
test_pwd
test_socketserver
test_strop
test_sunaudiodev
test_sundry
test_thread
test_threaded_import
test_threadedtempfile
test_threading
test_timing
test_unicode_file
test_winreg
test_winsound
""",
'darwin':
"""
test_al
test_bsddb
test_bsddb3
test_cd
test_cl
test_curses
test_dl
test_email_codecs
test_gdbm
test_gl
test_imgfile
test_largefile
test_linuxaudiodev
test_locale
test_minidom
test_mpz
test_nis
test_ntpath
test_ossaudiodev
test_poll
test_socketserver
test_sunaudiodev
test_unicode_file
test_winreg
test_winsound
""",
'sunos5':
"""
test_al
test_bsddb
test_cd
test_cl
test_curses
test_dbm
test_email_codecs
test_gdbm
test_gl
test_gzip
test_imgfile
test_linuxaudiodev
test_mpz
test_openpty
test_socketserver
test_winreg
test_winsound
test_zipfile
test_zlib
""",
'hp-ux11':
"""
test_al
test_bsddb
test_cd
test_cl
test_curses
test_dl
test_gdbm
test_gl
test_gzip
test_imgfile
test_largefile
test_linuxaudiodev
test_locale
test_minidom
test_nis
test_ntpath
test_openpty
test_pyexpat
test_sax
test_socketserver
test_sunaudiodev
test_unicode_file
test_winreg
test_winsound
test_zipfile
test_zlib
""",
'atheos':
"""
test_al
test_cd
test_cl
test_curses
test_dl
test_email_codecs
test_gdbm
test_gl
test_imgfile
test_largefile
test_linuxaudiodev
test_locale
test_mhlib
test_mmap
test_mpz
test_nis
test_poll
test_popen2
test_resource
test_socketserver
test_sunaudiodev
test_unicode_file
test_winreg
test_winsound
""",
'cygwin':
"""
test_al
test_bsddb3
test_cd
test_cl
test_curses
test_dbm
test_email_codecs
test_gl
test_imgfile
test_largefile
test_linuxaudiodev
test_locale
test_mpz
test_nis
test_socketserver
test_sunaudiodev
test_unicode_file
test_winreg
test_winsound
""",
'os2emx':
"""
test_al
test_audioop
test_bsddb3
test_cd
test_cl
test_commands
test_curses
test_dl
test_email_codecs
test_gl
test_imgfile
test_largefile
test_linuxaudiodev
test_mhlib
test_mmap
test_nis
test_openpty
test_ossaudiodev
test_pty
test_resource
test_signal
test_sunaudiodev
test_unicode_file
test_winreg
test_winsound
""",
}
class _ExpectedSkips:
def __init__(self):
import os.path
from test import test_normalization
from test import test_socket_ssl
self.valid = False
if sys.platform in _expectations:
s = _expectations[sys.platform]
self.expected = Set(s.split())
if not os.path.supports_unicode_filenames:
self.expected.add('test_pep277')
if test_normalization.skip_expected:
self.expected.add('test_normalization')
if test_socket_ssl.skip_expected:
self.expected.add('test_socket_ssl')
self.valid = True
def isvalid(self):
"Return true iff _ExpectedSkips knows about the current platform."
return self.valid
def getexpected(self):
"""Return set of test names we expect to skip on current platform.
self.isvalid() must be true.
"""
assert self.isvalid()
return self.expected
if __name__ == '__main__':
# Remove regrtest.py's own directory from the module search path. This
# prevents relative imports from working, and relative imports will screw
# up the testing framework. E.g. if both test.test_support and
# test_support are imported, they will not contain the same globals, and
# much of the testing framework relies on the globals in the
# test.test_support module.
mydir = os.path.abspath(os.path.normpath(os.path.dirname(sys.argv[0])))
i = pathlen = len(sys.path)
while i >= 0:
i -= 1
if os.path.abspath(os.path.normpath(sys.path[i])) == mydir:
del sys.path[i]
if len(sys.path) == pathlen:
print 'Could not find %r in sys.path to remove it' % mydir
main()
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