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regrtest.py
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#! /usr/bin/python2.7 """ Usage: python -m test.regrtest [options] [test_name1 [test_name2 ...]] python path/to/Lib/test/regrtest.py [options] [test_name1 [test_name2 ...]] If no arguments or options are provided, finds all files matching the pattern "test_*" in the Lib/test subdirectory and runs them in alphabetical order (but see -M and -u, below, for exceptions). For more rigorous testing, it is useful to use the following command line: python -E -tt -Wd -3 -m test.regrtest [options] [test_name1 ...] Options: -h/--help -- print this text and exit Verbosity -v/--verbose -- run tests in verbose mode with output to stdout -w/--verbose2 -- re-run failed tests in verbose mode -W/--verbose3 -- re-run failed tests in verbose mode immediately -q/--quiet -- no output unless one or more tests fail -S/--slowest -- print the slowest 10 tests --header -- print header with interpreter info Selecting tests -r/--randomize -- randomize test execution order (see below) --randseed -- pass a random seed to reproduce a previous random run -f/--fromfile -- read names of tests to run from a file (see below) -x/--exclude -- arguments are tests to *exclude* -s/--single -- single step through a set of tests (see below) -m/--match PAT -- match test cases and methods with glob pattern PAT --matchfile FILENAME -- filters tests using a text file, one pattern per line -G/--failfast -- fail as soon as a test fails (only with -v or -W) -u/--use RES1,RES2,... -- specify which special resource intensive tests to run -M/--memlimit LIMIT -- run very large memory-consuming tests Special runs -l/--findleaks -- if GC is available detect tests that leak memory -L/--runleaks -- run the leaks(1) command just before exit -R/--huntrleaks RUNCOUNTS -- search for reference leaks (needs debug build, v. slow) -j/--multiprocess PROCESSES -- run PROCESSES processes at once -T/--coverage -- turn on code coverage tracing using the trace module -D/--coverdir DIRECTORY -- Directory where coverage files are put -N/--nocoverdir -- Put coverage files alongside modules -t/--threshold THRESHOLD -- call gc.set_threshold(THRESHOLD) -F/--forever -- run the specified tests in a loop, until an error happens -P/--pgo -- enable Profile Guided Optimization training --testdir -- execute test files in the specified directory (instead of the Python stdlib test suite) --list-tests -- only write the name of tests that will be run, don't execute them --list-cases -- only write the name of test cases that will be run, don't execute them --fail-env-changed -- if a test file alters the environment, mark the test as failed Additional Option Details: -r randomizes test execution order. You can use --randseed=int to provide an int seed value for the randomizer; this is useful for reproducing troublesome test orders. -s On the first invocation of regrtest using -s, the first test file found or the first test file given on the command line is run, and the name of the next test is recorded in a file named pynexttest. If run from the Python build directory, pynexttest is located in the 'build' subdirectory, otherwise it is located in tempfile.gettempdir(). On subsequent runs, the test in pynexttest is run, and the next test is written to pynexttest. When the last test has been run, pynexttest is deleted. In this way it is possible to single step through the test files. This is useful when doing memory analysis on the Python interpreter, which process tends to consume too many resources to run the full regression test non-stop. -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. -L causes the leaks(1) command to be run just before exit if it exists. leaks(1) is available on Mac OS X and presumably on some other FreeBSD-derived systems. -R runs each test several times and examines sys.gettotalrefcount() to see if the test appears to be leaking references. The argument should be of the form stab:run:fname where 'stab' is the number of times the test is run to let gettotalrefcount settle down, 'run' is the number of times further it is run and 'fname' is the name of the file the reports are written to. These parameters all have defaults (5, 4 and "reflog.txt" respectively), and the minimal invocation is '-R :'. -M runs tests that require an exorbitant amount of memory. These tests typically try to ascertain containers keep working when containing more than 2 billion objects, which only works on 64-bit systems. There are also some tests that try to exhaust the address space of the process, which only makes sense on 32-bit systems with at least 2Gb of memory. The passed-in memlimit, which is a string in the form of '2.5Gb', determines howmuch memory the tests will limit themselves to (but they may go slightly over.) The number shouldn't be more memory than the machine has (including swap memory). You should also keep in mind that swap memory is generally much, much slower than RAM, and setting memlimit to all available RAM or higher will heavily tax the machine. On the other hand, it is no use running these tests with a limit of less than 2.5Gb, and many require more than 20Gb. Tests that expect to use more than memlimit memory will be skipped. The big-memory tests generally run very, very long. -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. audio - Tests that use the audio device. (There are known cases of broken audio drivers that can crash Python or even the Linux kernel.) 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. decimal - Test the decimal module against a large suite that verifies compliance with standards. cpu - Used for certain CPU-heavy tests. subprocess Run all tests for the subprocess module. urlfetch - It is okay to download files required on testing. gui - Run tests that require a running GUI. xpickle - Test pickle and cPickle against Python 2.4, 2.5 and 2.6 to test backwards compatibility. These tests take a long time to run. 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'. --matchfile filters tests using a text file, one pattern per line. Pattern examples: - test method: test_stat_attributes - test class: FileTests - test identifier: test_os.FileTests.test_stat_attributes """ import StringIO import datetime import getopt import imp import json import math import os import platform import random import re import shutil import sys import sysconfig import tempfile import time import traceback import unittest import warnings # Some times __path__ and __file__ are not absolute (e.g. while running from # Lib/) and, if we change the CWD to run the tests in a temporary dir, some # imports might fail. This affects only the modules imported before os.chdir(). # These modules are searched first in sys.path[0] (so '' -- the CWD) and if # they are found in the CWD their __file__ and __path__ will be relative (this # happens before the chdir). All the modules imported after the chdir, are # not found in the CWD, and since the other paths in sys.path[1:] are absolute # (site.py absolutize them), the __file__ and __path__ will be absolute too. # Therefore it is necessary to absolutize manually the __file__ and __path__ of # the packages to prevent later imports to fail when the CWD is different. for module in sys.modules.itervalues(): if hasattr(module, '__path__'): module.__path__ = [os.path.abspath(path) for path in module.__path__] if hasattr(module, '__file__'): module.__file__ = os.path.abspath(module.__file__) # 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)) # Windows, Tkinter, and resetting the environment after each test don't # mix well. To alleviate test failures due to Tcl/Tk not being able to # find its library, get the necessary environment massage done once early. if sys.platform == 'win32': try: import FixTk except Exception: pass # Test result constants. PASSED = 1 FAILED = 0 ENV_CHANGED = -1 SKIPPED = -2 RESOURCE_DENIED = -3 INTERRUPTED = -4 CHILD_ERROR = -5 # error in a child process TEST_DID_NOT_RUN = -6 # error in a child process # Minimum duration of a test to display its duration or to mention that # the test is running in background PROGRESS_MIN_TIME = 30.0 # seconds # Display the running tests if nothing happened last N seconds PROGRESS_UPDATE = 30.0 # seconds from test import support ALL_RESOURCES = ('audio', 'curses', 'largefile', 'network', 'bsddb', 'decimal', 'cpu', 'subprocess', 'urlfetch', 'gui', 'xpickle') # Other resources excluded from --use=all: # # - extralagefile (ex: test_zipfile64): really too slow to be enabled # "by default" RESOURCE_NAMES = ALL_RESOURCES + ('extralargefile',) TEMPDIR = os.path.abspath(tempfile.gettempdir()) def usage(code, msg=''): print __doc__ if msg: print msg sys.exit(code) def format_duration(seconds): ms = int(math.ceil(seconds * 1e3)) seconds, ms = divmod(ms, 1000) minutes, seconds = divmod(seconds, 60) hours, minutes = divmod(minutes, 60) parts = [] if hours: parts.append('%s hour' % hours) if minutes: parts.append('%s min' % minutes) if seconds: parts.append('%s sec' % seconds) if ms: parts.append('%s ms' % ms) if not parts: return '0 ms' parts = parts[:2] return ' '.join(parts) _FORMAT_TEST_RESULT = { PASSED: '%s passed', FAILED: '%s failed', ENV_CHANGED: '%s failed (env changed)', SKIPPED: '%s skipped', RESOURCE_DENIED: '%s skipped (resource denied)', INTERRUPTED: '%s interrupted', CHILD_ERROR: '%s crashed', TEST_DID_NOT_RUN: '%s run no tests', } def format_test_result(test_name, result): fmt = _FORMAT_TEST_RESULT.get(result, "%s") return fmt % test_name def cpu_count(): # first try os.sysconf() to prevent loading the big multiprocessing module try: return os.sysconf('SC_NPROCESSORS_ONLN') except (AttributeError, ValueError): pass # try multiprocessing.cpu_count() try: import multiprocessing except ImportError: pass else: return multiprocessing.cpu_count() return None def unload_test_modules(save_modules): # Unload the newly imported modules (best effort finalization) for module in sys.modules.keys(): if module not in save_modules and module.startswith("test."): support.unload(module) def main(tests=None, testdir=None, verbose=0, quiet=False, exclude=False, single=False, randomize=False, fromfile=None, findleaks=False, use_resources=None, trace=False, coverdir='coverage', runleaks=False, huntrleaks=False, verbose2=False, print_slow=False, random_seed=None, use_mp=None, verbose3=False, forever=False, header=False, pgo=False, failfast=False, match_tests=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, exclude, single, randomize, findleaks, use_resources, trace, coverdir, print_slow, and random_seed) allow programmers calling main() directly to set the values that would normally be set by flags on the command line. """ regrtest_start_time = time.time() support.record_original_stdout(sys.stdout) try: opts, args = getopt.getopt(sys.argv[1:], 'hvqxsSrf:lu:t:TD:NLR:FwWM:j:PGm:', ['help', 'verbose', 'verbose2', 'verbose3', 'quiet', 'exclude', 'single', 'slow', 'slowest', 'randomize', 'fromfile=', 'findleaks', 'use=', 'threshold=', 'trace', 'coverdir=', 'nocoverdir', 'runleaks', 'huntrleaks=', 'memlimit=', 'randseed=', 'multiprocess=', 'slaveargs=', 'forever', 'header', 'pgo', 'failfast', 'match=', 'testdir=', 'list-tests', 'list-cases', 'coverage', 'matchfile=', 'fail-env-changed', 'cleanup']) except getopt.error, msg: usage(2, msg) # Defaults if random_seed is None: random_seed = random.randrange(10000000) if use_resources is None: use_resources = [] slaveargs = None list_tests = False list_cases_opt = False fail_env_changed = False cleanup_tests = False for o, a in opts: if o in ('-h', '--help'): usage(0) elif o in ('-v', '--verbose'): verbose += 1 elif o in ('-w', '--verbose2'): verbose2 = True elif o in ('-W', '--verbose3'): verbose3 = True elif o in ('-G', '--failfast'): failfast = True elif o in ('-q', '--quiet'): quiet = True; verbose = 0 elif o in ('-x', '--exclude'): exclude = True elif o in ('-s', '--single'): single = True elif o in ('-S', '--slow', '--slowest'): print_slow = True elif o in ('-r', '--randomize'): randomize = True elif o == '--randseed': random_seed = int(a) elif o in ('-f', '--fromfile'): fromfile = a elif o in ('-m', '--match'): if match_tests is None: match_tests = [] match_tests.append(a) elif o == '--matchfile': if match_tests is None: match_tests = [] filename = os.path.join(support.SAVEDCWD, a) with open(filename) as fp: for line in fp: match_tests.append(line.strip()) elif o in ('-l', '--findleaks'): findleaks = True elif o in ('-L', '--runleaks'): runleaks = True elif o in ('-t', '--threshold'): import gc gc.set_threshold(int(a)) elif o in ('-T', '--coverage'): trace = True elif o in ('-D', '--coverdir'): coverdir = os.path.join(os.getcwd(), a) elif o in ('-N', '--nocoverdir'): coverdir = None elif o in ('-R', '--huntrleaks'): huntrleaks = a.split(':') if len(huntrleaks) not in (2, 3): print a, huntrleaks usage(2, '-R takes 2 or 3 colon-separated arguments') if not huntrleaks[0]: huntrleaks[0] = 5 else: huntrleaks[0] = int(huntrleaks[0]) if not huntrleaks[1]: huntrleaks[1] = 4 else: huntrleaks[1] = int(huntrleaks[1]) if len(huntrleaks) == 2 or not huntrleaks[2]: huntrleaks[2:] = ["reflog.txt"] elif o in ('-M', '--memlimit'): support.set_memlimit(a) elif o in ('-u', '--use'): u = [x.lower() for x in a.split(',')] for r in u: if r == 'all': use_resources[:] = ALL_RESOURCES 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) elif o in ('-F', '--forever'): forever = True elif o in ('-j', '--multiprocess'): use_mp = int(a) elif o == '--header': header = True elif o == '--slaveargs': slaveargs = a elif o in ('-P', '--pgo'): pgo = True elif o == '--testdir': testdir = a elif o == '--list-tests': list_tests = True elif o == '--list-cases': list_cases_opt = True elif o == '--fail-env-changed': fail_env_changed = True elif o == '--cleanup': cleanup_tests = True else: print >>sys.stderr, ("No handler for option {}. Please " "report this as a bug at http://bugs.python.org.").format(o) sys.exit(1) if single and fromfile: usage(2, "-s and -f don't go together!") if use_mp and trace: usage(2, "-T and -j don't go together!") if use_mp and findleaks: usage(2, "-l and -j don't go together!") if failfast and not (verbose or verbose3): usage("-G/--failfast needs either -v or -W") if testdir: testdir = os.path.abspath(testdir) # Prepend test directory to sys.path, so runtest() will be able # to locate tests sys.path.insert(0, testdir) # Make sure that '' and Lib/test/ are not in sys.path regrtest_dir = os.path.abspath(os.path.dirname(__file__)) for path in ('', regrtest_dir): try: sys.path.remove(path) except ValueError: pass if huntrleaks: warmup, repetitions, _ = huntrleaks if warmup < 1 or repetitions < 1: msg = ("Invalid values for the --huntrleaks/-R parameters. The " "number of warmups and repetitions must be at least 1 " "each (1:1).") print >>sys.stderr, msg sys.exit(2) if cleanup_tests: import glob os.chdir(support.SAVEDCWD) path = os.path.join(TEMPDIR, 'test_python_*') print("Cleanup %s directory" % TEMPDIR) for name in glob.glob(path): if os.path.isdir(name): print("Remove directory: %s" % name) support.rmtree(name) else: print("Remove file: %s" % name) support.unlink(name) sys.exit(0) if slaveargs is not None: args, kwargs = json.loads(slaveargs) if testdir: kwargs['testdir'] = testdir try: result = runtest(*args, **kwargs) except BaseException, e: result = INTERRUPTED, e.__class__.__name__ print # Force a newline (just in case) print json.dumps(result) sys.exit(0) good = [] bad = [] skipped = [] resource_denieds = [] environment_changed = [] rerun = [] run_no_tests = [] first_result = None interrupted = False if findleaks: try: import gc except ImportError: print 'No GC available, disabling findleaks.' findleaks = False 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: filename = os.path.join(TEMPDIR, 'pynexttest') try: fp = open(filename, 'r') next_test = fp.read().strip() tests = [next_test] fp.close() except IOError: pass if fromfile: tests = [] fp = open(os.path.join(support.SAVEDCWD, 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. removepy(args) removepy(tests) stdtests = STDTESTS[:] nottests = NOTTESTS.copy() if exclude: for arg in args: if arg in stdtests: stdtests.remove(arg) nottests.add(arg) args = [] if huntrleaks: # FIXME: bpo-31731: test_io hangs with --huntrleaks print("Warning: bpo-31731: test_io hangs with --huntrleaks: " "exclude the test") nottests.add('test_io') display_header = (verbose or header or not (quiet or single or tests or args)) and (not pgo) alltests = findtests(testdir, stdtests, nottests) selected = tests or args or alltests if single: selected = selected[:1] try: next_single_test = alltests[alltests.index(selected[0])+1] except IndexError: next_single_test = None if list_tests: for name in selected: print(name) sys.exit(0) if list_cases_opt: list_cases(testdir, selected, match_tests) sys.exit(0) if trace: import trace tracer = trace.Trace(trace=False, count=True) test_times = [] support.use_resources = use_resources save_modules = set(sys.modules) def accumulate_result(test, result): ok, test_time = result if ok not in (CHILD_ERROR, INTERRUPTED): test_times.append((test_time, test)) if ok == PASSED: good.append(test) elif ok in (FAILED, CHILD_ERROR): bad.append(test) elif ok == ENV_CHANGED: environment_changed.append(test) elif ok == SKIPPED: skipped.append(test) elif ok == RESOURCE_DENIED: skipped.append(test) resource_denieds.append(test) elif ok == TEST_DID_NOT_RUN: run_no_tests.append(test) elif ok != INTERRUPTED: raise ValueError("invalid test result: %r" % ok) if forever: def test_forever(tests=list(selected)): while True: for test in tests: yield test if bad: return if fail_env_changed and environment_changed: return tests = test_forever() test_count = '' test_count_width = 3 else: tests = iter(selected) test_count = '/{}'.format(len(selected)) test_count_width = len(test_count) - 1 def display_progress(test_index, test): # "[ 51/405/1] test_tcl" line = "{1:{0}}{2}".format(test_count_width, test_index, test_count) fails = len(bad) + len(environment_changed) if fails and not pgo: line = '{}/{}'.format(line, fails) line = '[{}]'.format(line) # add the system load prefix: "load avg: 1.80 " if hasattr(os, 'getloadavg'): load_avg_1min = os.getloadavg()[0] line = "load avg: {:.2f} {}".format(load_avg_1min, line) # add the timestamp prefix: "0:01:05 " test_time = time.time() - regrtest_start_time test_time = datetime.timedelta(seconds=int(test_time)) line = "%s %s" % (test_time, line) # add the test name line = "{} {}".format(line, test) print(line) sys.stdout.flush() # For a partial run, we do not need to clutter the output. if display_header: # Print basic platform information print "==", platform.python_implementation(), \ " ".join(sys.version.split()) print "== ", platform.platform(aliased=True), \ "%s-endian" % sys.byteorder print "== ", os.getcwd() ncpu = cpu_count() if ncpu: print "== CPU count:", ncpu if huntrleaks: warmup, repetitions, _ = huntrleaks if warmup < 3: print("WARNING: Running tests with --huntrleaks/-R and less than " "3 warmup repetitions can give false positives!") if randomize: random.seed(random_seed) print "Using random seed", random_seed random.shuffle(selected) if use_mp: try: from threading import Thread except ImportError: print "Multiprocess option requires thread support" sys.exit(2) from Queue import Queue, Empty from subprocess import Popen, PIPE debug_output_pat = re.compile(r"\[\d+ refs\]$") output = Queue() def tests_and_args(): for test in tests: args_tuple = ( (test, verbose, quiet), dict(huntrleaks=huntrleaks, use_resources=use_resources, failfast=failfast, match_tests=match_tests, pgo=pgo) ) yield (test, args_tuple) pending = tests_and_args() opt_args = support.args_from_interpreter_flags() base_cmd = [sys.executable] + opt_args + ['-m', 'test.regrtest'] # required to spawn a new process with PGO flag on/off if pgo: base_cmd = base_cmd + ['--pgo'] class MultiprocessThread(Thread): current_test = None start_time = None def runtest(self): try: test, args_tuple = next(pending) except StopIteration: output.put((None, None, None, None)) return True # -E is needed by some tests, e.g. test_import args = base_cmd + ['--slaveargs', json.dumps(args_tuple)] if testdir: args.extend(('--testdir', testdir)) try: self.start_time = time.time() self.current_test = test popen = Popen(args, stdout=PIPE, stderr=PIPE, universal_newlines=True, close_fds=(os.name != 'nt')) stdout, stderr = popen.communicate() retcode = popen.wait() finally: self.current_test = None # Strip last refcount output line if it exists, since it # comes from the shutdown of the interpreter in the subcommand. stderr = debug_output_pat.sub("", stderr) if retcode == 0: stdout, _, result = stdout.strip().rpartition("\n") if not result: output.put((None, None, None, None)) return True result = json.loads(result) else: result = (CHILD_ERROR, "Exit code %s" % retcode) output.put((test, stdout.rstrip(), stderr.rstrip(), result)) return False def run(self): try: stop = False while not stop: stop = self.runtest() except BaseException: output.put((None, None, None, None)) raise workers = [MultiprocessThread() for i in range(use_mp)] print("Run tests in parallel using %s child processes" % len(workers)) for worker in workers: worker.start() def get_running(workers): running = [] for worker in workers: current_test = worker.current_test if not current_test: continue dt = time.time() - worker.start_time if dt >= PROGRESS_MIN_TIME: running.append('%s (%s)' % (current_test, format_duration(dt))) return running finished = 0 test_index = 1 get_timeout = max(PROGRESS_UPDATE, PROGRESS_MIN_TIME) try: while finished < use_mp: try: item = output.get(timeout=get_timeout) except Empty: running = get_running(workers) if running and not pgo: print('running: %s' % ', '.join(running)) sys.stdout.flush() continue test, stdout, stderr, result = item if test is None: finished += 1 continue accumulate_result(test, result) if not quiet: ok, test_time = result text = format_test_result(test, ok) if (ok not in (CHILD_ERROR, INTERRUPTED) and test_time >= PROGRESS_MIN_TIME and not pgo): text += ' (%s)' % format_duration(test_time) running = get_running(workers) if running and not pgo: text += ' -- running: %s' % ', '.join(running) display_progress(test_index, text) if stdout: print(stdout) sys.stdout.flush() if stderr and not pgo: print >>sys.stderr, stderr sys.stderr.flush() if result[0] == INTERRUPTED: assert result[1] == 'KeyboardInterrupt' raise KeyboardInterrupt # What else? test_index += 1 except KeyboardInterrupt: interrupted = True pending.close() for worker in workers: worker.join() else: print("Run tests sequentially") previous_test = None for test_index, test in enumerate(tests, 1): if not quiet: text = test if previous_test: text = '%s -- %s' % (text, previous_test) display_progress(test_index, text) def local_runtest(): result = runtest(test, verbose, quiet, huntrleaks, None, pgo, failfast=failfast, match_tests=match_tests, testdir=testdir) accumulate_result(test, result) return result start_time = time.time() if trace: # If we're tracing code coverage, then we don't exit with status # if on a false return value from main. ns = dict(locals()) tracer.runctx('result = local_runtest()', globals=globals(), locals=ns) result = ns['result'] else: try: result = local_runtest() if verbose3 and result[0] == FAILED: if not pgo: print "Re-running test %r in verbose mode" % test runtest(test, True, quiet, huntrleaks, None, pgo, testdir=testdir) except KeyboardInterrupt: interrupted = True break except: raise test_time = time.time() - start_time previous_test = format_test_result(test, result[0]) if test_time >= PROGRESS_MIN_TIME: previous_test = "%s in %s" % (previous_test, format_duration(test_time)) elif result[0] == PASSED: # be quiet: say nothing if the test passed shortly previous_test = None 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_test_modules(save_modules) def get_tests_result(): result = [] if bad: result.append("FAILURE") elif fail_env_changed and environment_changed: result.append("ENV CHANGED") elif not any((good, bad, skipped, interrupted, environment_changed)): result.append("NO TEST RUN") if interrupted: result.append("INTERRUPTED") if not result: result.append("SUCCESS") result = ', '.join(result) if first_result: result = '%s then %s' % (first_result, result) return result def display_result(): # print a newline after ^C print print("== Tests result: %s ==" % get_tests_result()) if interrupted and not pgo: print print "Test suite interrupted by signal SIGINT." omitted = set(selected) - set(good) - set(bad) - set(skipped) print count(len(omitted), "test"), "omitted:" printlist(omitted) if good and not quiet and not pgo: print if not bad and not skipped and not interrupted and len(good) > 1: print "All", print count(len(good), "test"), "OK." if print_slow: test_times.sort(reverse=True) print print "10 slowest tests:" for test_time, test in test_times[:10]: print("- %s: %.1fs" % (test, test_time)) if bad and not pgo: print print count(len(bad), "test"), "failed:" printlist(bad) if environment_changed and not pgo: print print "{} altered the execution environment:".format( count(len(environment_changed), "test")) printlist(environment_changed) if skipped and not quiet and not pgo: print print count(len(skipped), "test"), "skipped:" printlist(skipped) e = _ExpectedSkips() plat = sys.platform if e.isvalid(): surprise = set(skipped) - e.getexpected() - set(resource_denieds) 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 rerun: print("") print("%s:" % count(len(rerun), "re-run test")) printlist(rerun) if run_no_tests: print("") print("%s run no tests:" % count(len(run_no_tests), "test")) printlist(run_no_tests) display_result() if verbose2 and bad: first_result = get_tests_result() print print "Re-running failed tests in verbose mode" rerun = bad[:] for test in rerun: print "Re-running test %r in verbose mode" % test sys.stdout.flush() try: support.verbose = True ok = runtest(test, True, quiet, huntrleaks, None, pgo, match_tests=match_tests, testdir=testdir) except KeyboardInterrupt: # print a newline separate from the ^C print break else: if ok[0] in {PASSED, ENV_CHANGED, SKIPPED, RESOURCE_DENIED}: bad.remove(test) else: if bad: print count(len(bad), "test"), "failed again:" printlist(bad) display_result() if single: if next_single_test: with open(filename, 'w') as fp: fp.write(next_single_test + '\n') else: os.unlink(filename) if trace: r = tracer.results() r.write_results(show_missing=True, summary=True, coverdir=coverdir) if runleaks: os.system("leaks %d" % os.getpid()) print duration = time.time() - regrtest_start_time print("Total duration: %s" % format_duration(duration)) print("Tests result: %s" % get_tests_result()) if bad: sys.exit(2) if interrupted: sys.exit(130) if fail_env_changed and environment_changed: sys.exit(3) sys.exit(0) STDTESTS = [ 'test_grammar', 'test_opcodes', 'test_dict', 'test_builtin', 'test_exceptions', 'test_types', 'test_unittest', 'test_doctest', 'test_doctest2', ] NOTTESTS = { 'test_support', 'test_future1', 'test_future2', } def findtests(testdir=None, stdtests=STDTESTS, nottests=NOTTESTS): """Return a list of all applicable test modules.""" testdir = findtestdir(testdir) names = os.listdir(testdir) tests = [] others = set(stdtests) | nottests for name in names: modname, ext = os.path.splitext(name) if modname[:5] == "test_" and ext == ".py" and modname not in others: tests.append(modname) return stdtests + sorted(tests) def runtest(test, verbose, quiet, huntrleaks=False, use_resources=None, pgo=False, failfast=False, match_tests=None, testdir=None): """Run a single test. test -- the name of the test verbose -- if true, print more messages quiet -- if true, don't print 'skipped' messages (probably redundant) test_times -- a list of (time, test_name) pairs huntrleaks -- run multiple times to test for leaks; requires a debug build; a triple corresponding to -R's three arguments pgo -- if true, do not print unnecessary info when running the test for Profile Guided Optimization build Returns one of the test result constants: CHILD_ERROR Child process crashed INTERRUPTED KeyboardInterrupt when run under -j RESOURCE_DENIED test skipped because resource denied SKIPPED test skipped for some other reason ENV_CHANGED test failed because it changed the execution environment FAILED test failed PASSED test passed EMPTY_TEST_SUITE test ran no subtests. """ support.verbose = verbose # Tell tests to be moderately quiet if use_resources is not None: support.use_resources = use_resources try: support.set_match_tests(match_tests) # reset the environment_altered flag to detect if a test altered # the environment support.environment_altered = False if failfast: support.failfast = True return runtest_inner(test, verbose, quiet, huntrleaks, pgo, testdir) finally: cleanup_test_droppings(test, verbose) # Unit tests are supposed to leave the execution environment unchanged # once they complete. But sometimes tests have bugs, especially when # tests fail, and the changes to environment go on to mess up other # tests. This can cause issues with buildbot stability, since tests # are run in random order and so problems may appear to come and go. # There are a few things we can save and restore to mitigate this, and # the following context manager handles this task. class saved_test_environment: """Save bits of the test environment and restore them at block exit. with saved_test_environment(testname, verbose, quiet): #stuff Unless quiet is True, a warning is printed to stderr if any of the saved items was changed by the test. The attribute 'changed' is initially False, but is set to True if a change is detected. If verbose is more than 1, the before and after state of changed items is also printed. """ changed = False def __init__(self, testname, verbose=0, quiet=False, pgo=False): self.testname = testname self.verbose = verbose self.quiet = quiet self.pgo = pgo # To add things to save and restore, add a name XXX to the resources list # and add corresponding get_XXX/restore_XXX functions. get_XXX should # return the value to be saved and compared against a second call to the # get function when test execution completes. restore_XXX should accept # the saved value and restore the resource using it. It will be called if # and only if a change in the value is detected. # # Note: XXX will have any '.' replaced with '_' characters when determining # the corresponding method names. resources = ('sys.argv', 'cwd', 'sys.stdin', 'sys.stdout', 'sys.stderr', 'os.environ', 'sys.path', 'asyncore.socket_map', 'files', ) def get_sys_argv(self): return id(sys.argv), sys.argv, sys.argv[:] def restore_sys_argv(self, saved_argv): sys.argv = saved_argv[1] sys.argv[:] = saved_argv[2] def get_cwd(self): return os.getcwd() def restore_cwd(self, saved_cwd): os.chdir(saved_cwd) def get_sys_stdout(self): return sys.stdout def restore_sys_stdout(self, saved_stdout): sys.stdout = saved_stdout def get_sys_stderr(self): return sys.stderr def restore_sys_stderr(self, saved_stderr): sys.stderr = saved_stderr def get_sys_stdin(self): return sys.stdin def restore_sys_stdin(self, saved_stdin): sys.stdin = saved_stdin def get_os_environ(self): return id(os.environ), os.environ, dict(os.environ) def restore_os_environ(self, saved_environ): os.environ = saved_environ[1] os.environ.clear() os.environ.update(saved_environ[2]) def get_sys_path(self): return id(sys.path), sys.path, sys.path[:] def restore_sys_path(self, saved_path): sys.path = saved_path[1] sys.path[:] = saved_path[2] def get_asyncore_socket_map(self): asyncore = sys.modules.get('asyncore') # XXX Making a copy keeps objects alive until __exit__ gets called. return asyncore and asyncore.socket_map.copy() or {} def restore_asyncore_socket_map(self, saved_map): asyncore = sys.modules.get('asyncore') if asyncore is not None: asyncore.close_all(ignore_all=True) asyncore.socket_map.update(saved_map) def get_support_TESTFN(self): if os.path.isfile(support.TESTFN): result = 'f' elif os.path.isdir(support.TESTFN): result = 'd' else: result = None return result def restore_support_TESTFN(self, saved_value): if saved_value is None: if os.path.isfile(support.TESTFN): os.unlink(support.TESTFN) elif os.path.isdir(support.TESTFN): shutil.rmtree(support.TESTFN) def get_files(self): return sorted(fn + ('/' if os.path.isdir(fn) else '') for fn in os.listdir(os.curdir)) def restore_files(self, saved_value): fn = support.TESTFN if fn not in saved_value and (fn + '/') not in saved_value: if os.path.isfile(fn): support.unlink(fn) elif os.path.isdir(fn): support.rmtree(fn) def resource_info(self): for name in self.resources: method_suffix = name.replace('.', '_') get_name = 'get_' + method_suffix restore_name = 'restore_' + method_suffix yield name, getattr(self, get_name), getattr(self, restore_name) def __enter__(self): self.saved_values = dict((name, get()) for name, get, restore in self.resource_info()) return self def __exit__(self, exc_type, exc_val, exc_tb): saved_values = self.saved_values del self.saved_values # Read support.environment_altered, set by support helper functions self.changed |= support.environment_altered for name, get, restore in self.resource_info(): current = get() original = saved_values.pop(name) # Check for changes to the resource's value if current != original: self.changed = True restore(original) if not self.quiet and not self.pgo: print >>sys.stderr, ( "Warning -- {} was modified by {}".format( name, self.testname)) print >>sys.stderr, ( " Before: {}\n After: {} ".format( original, current)) # XXX (ncoghlan): for most resources (e.g. sys.path) identity # matters at least as much as value. For others (e.g. cwd), # identity is irrelevant. Should we add a mechanism to check # for substitution in the cases where it matters? return False def post_test_cleanup(): support.reap_children() def runtest_inner(test, verbose, quiet, huntrleaks=False, pgo=False, testdir=None): support.unload(test) if verbose: capture_stdout = None else: capture_stdout = StringIO.StringIO() test_time = 0.0 refleak = False # True if the test leaked references. try: save_stdout = sys.stdout try: if capture_stdout: sys.stdout = capture_stdout abstest = get_abs_module(testdir, test) clear_caches() with saved_test_environment(test, verbose, quiet, pgo) as environment: start_time = time.time() the_package = __import__(abstest, globals(), locals(), []) if abstest.startswith('test.'): the_module = getattr(the_package, test) else: the_module = the_package # Old tests run to completion simply as a side-effect of # being imported. For tests based on unittest or doctest, # explicitly invoke their test_main() function (if it exists). indirect_test = getattr(the_module, "test_main", None) if huntrleaks: refleak = dash_R(the_module, test, indirect_test, huntrleaks, quiet) else: if indirect_test is not None: indirect_test() test_time = time.time() - start_time post_test_cleanup() finally: sys.stdout = save_stdout except support.ResourceDenied, msg: if not quiet and not pgo: print test, "skipped --", msg sys.stdout.flush() return RESOURCE_DENIED, test_time except unittest.SkipTest, msg: if not quiet and not pgo: print test, "skipped --", msg sys.stdout.flush() return SKIPPED, test_time except KeyboardInterrupt: raise except support.TestFailed, msg: if not pgo: print >>sys.stderr, "test", test, "failed --", msg sys.stderr.flush() return FAILED, test_time except support.TestDidNotRun: return TEST_DID_NOT_RUN, test_time except: type, value = sys.exc_info()[:2] if not pgo: print >>sys.stderr, "test", test, "crashed --", str(type) + ":", value sys.stderr.flush() if verbose and not pgo: traceback.print_exc(file=sys.stderr) sys.stderr.flush() return FAILED, test_time else: if refleak: return FAILED, test_time if environment.changed: return ENV_CHANGED, test_time # Except in verbose mode, tests should not print anything if verbose or huntrleaks: return PASSED, test_time output = capture_stdout.getvalue() if not output: return PASSED, test_time print "test", test, "produced unexpected output:" print "*" * 70 print output print "*" * 70 sys.stdout.flush() return FAILED, test_time def cleanup_test_droppings(testname, verbose): import stat import gc # First kill any dangling references to open files etc. gc.collect() # Try to clean up junk commonly left behind. While tests shouldn't leave # any files or directories behind, when a test fails that can be tedious # for it to arrange. The consequences can be especially nasty on Windows, # since if a test leaves a file open, it cannot be deleted by name (while # there's nothing we can do about that here either, we can display the # name of the offending test, which is a real help). for name in (support.TESTFN, "db_home", ): if not os.path.exists(name): continue if os.path.isdir(name): kind, nuker = "directory", shutil.rmtree elif os.path.isfile(name): kind, nuker = "file", os.unlink else: raise SystemError("os.path says %r exists but is neither " "directory nor file" % name) if verbose: print "%r left behind %s %r" % (testname, kind, name) try: # if we have chmod, fix possible permissions problems # that might prevent cleanup if (hasattr(os, 'chmod')): os.chmod(name, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO) nuker(name) except Exception, msg: print >> sys.stderr, ("%r left behind %s %r and it couldn't be " "removed: %s" % (testname, kind, name, msg)) def dash_R(the_module, test, indirect_test, huntrleaks, quiet): """Run a test multiple times, looking for reference leaks. Returns: False if the test didn't leak references; True if we detected refleaks. """ # This code is hackish and inelegant, but it seems to do the job. import copy_reg, _abcoll, _pyio if not hasattr(sys, 'gettotalrefcount'): raise Exception("Tracking reference leaks requires a debug build " "of Python") # Avoid false positives due to various caches # filling slowly with random data: warm_caches() # Save current values for dash_R_cleanup() to restore. fs = warnings.filters[:] ps = copy_reg.dispatch_table.copy() pic = sys.path_importer_cache.copy() try: import zipimport except ImportError: zdc = None # Run unmodified on platforms without zipimport support else: zdc = zipimport._zip_directory_cache.copy() abcs = {} modules = _abcoll, _pyio for abc in [getattr(mod, a) for mod in modules for a in mod.__all__]: # XXX isinstance(abc, ABCMeta) leads to infinite recursion if not hasattr(abc, '_abc_registry'): continue for obj in abc.__subclasses__() + [abc]: abcs[obj] = obj._abc_registry.copy() # bpo-31217: Integer pool to get a single integer object for the same # value. The pool is used to prevent false alarm when checking for memory # block leaks. Fill the pool with values in -1000..1000 which are the most # common (reference, memory block, file descriptor) differences. int_pool = {value: value for value in range(-1000, 1000)} def get_pooled_int(value): return int_pool.setdefault(value, value) if indirect_test: def run_the_test(): indirect_test() else: def run_the_test(): imp.reload(the_module) deltas = [] nwarmup, ntracked, fname = huntrleaks fname = os.path.join(support.SAVEDCWD, fname) # Pre-allocate to ensure that the loop doesn't allocate anything new repcount = nwarmup + ntracked rc_deltas = [0] * repcount fd_deltas = [0] * repcount rep_range = list(range(repcount)) if not quiet: print >> sys.stderr, "beginning", repcount, "repetitions" print >> sys.stderr, ("1234567890"*(repcount//10 + 1))[:repcount] dash_R_cleanup(fs, ps, pic, zdc, abcs) # initialize variables to make pyflakes quiet rc_before = fd_before = 0 for i in rep_range: run_the_test() if not quiet: sys.stderr.write('.') dash_R_cleanup(fs, ps, pic, zdc, abcs) rc_after = sys.gettotalrefcount() fd_after = support.fd_count() rc_deltas[i] = get_pooled_int(rc_after - rc_before) fd_deltas[i] = get_pooled_int(fd_after - fd_before) rc_before = rc_after fd_before = fd_after if not quiet: print >> sys.stderr # These checkers return False on success, True on failure def check_rc_deltas(deltas): # Checker for reference counters and memomry blocks. # # bpo-30776: Try to ignore false positives: # # [3, 0, 0] # [0, 1, 0] # [8, -8, 1] # # Expected leaks: # # [5, 5, 6] # [10, 1, 1] return all(delta >= 1 for delta in deltas) def check_fd_deltas(deltas): return any(deltas) failed = False for deltas, item_name, checker in [ (rc_deltas, 'references', check_rc_deltas), (fd_deltas, 'file descriptors', check_fd_deltas) ]: deltas = deltas[nwarmup:] if checker(deltas): msg = '%s leaked %s %s, sum=%s' % (test, deltas, item_name, sum(deltas)) print >> sys.stderr, msg with open(fname, "a") as refrep: print >> refrep, msg refrep.flush() failed = True return failed def dash_R_cleanup(fs, ps, pic, zdc, abcs): import gc, copy_reg # Restore some original values. warnings.filters[:] = fs copy_reg.dispatch_table.clear() copy_reg.dispatch_table.update(ps) sys.path_importer_cache.clear() sys.path_importer_cache.update(pic) try: import zipimport except ImportError: pass # Run unmodified on platforms without zipimport support else: zipimport._zip_directory_cache.clear() zipimport._zip_directory_cache.update(zdc) # clear type cache sys._clear_type_cache() # Clear ABC registries, restoring previously saved ABC registries. for abc, registry in abcs.items(): abc._abc_registry = registry.copy() abc._abc_cache.clear() abc._abc_negative_cache.clear() clear_caches() def clear_caches(): import gc # Clear the warnings registry, so they can be displayed again for mod in sys.modules.values(): if hasattr(mod, '__warningregistry__'): del mod.__warningregistry__ # Clear assorted module caches. # Don't worry about resetting the cache if the module is not loaded try: distutils_dir_util = sys.modules['distutils.dir_util'] except KeyError: pass else: distutils_dir_util._path_created.clear() re.purge() try: _strptime = sys.modules['_strptime'] except KeyError: pass else: _strptime._regex_cache.clear() try: urlparse = sys.modules['urlparse'] except KeyError: pass else: urlparse.clear_cache() try: urllib = sys.modules['urllib'] except KeyError: pass else: urllib.urlcleanup() try: urllib2 = sys.modules['urllib2'] except KeyError: pass else: urllib2.install_opener(None) try: dircache = sys.modules['dircache'] except KeyError: pass else: dircache.reset() try: linecache = sys.modules['linecache'] except KeyError: pass else: linecache.clearcache() try: mimetypes = sys.modules['mimetypes'] except KeyError: pass else: mimetypes._default_mime_types() try: filecmp = sys.modules['filecmp'] except KeyError: pass else: filecmp._cache.clear() try: struct = sys.modules['struct'] except KeyError: pass else: struct._clearcache() try: doctest = sys.modules['doctest'] except KeyError: pass else: doctest.master = None try: ctypes = sys.modules['ctypes'] except KeyError: pass else: ctypes._reset_cache() # Collect cyclic trash. support.gc_collect() def warm_caches(): """Create explicitly internal singletons which are created on demand to prevent false positive when hunting reference leaks.""" # char cache for i in range(256): chr(i) # unicode cache for i in range(256): unichr(i) # int cache list(range(-5, 257)) def findtestdir(path=None): return path or os.path.dirname(__file__) or os.curdir def removepy(names): if not names: return for idx, name in enumerate(names): basename, ext = os.path.splitext(name) if ext == '.py': names[idx] = basename 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, file=None): """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 the sorted list: 'x' may be a '--random' list or a set() print >>file, fill(' '.join(str(elt) for elt in sorted(x)), width, initial_indent=blanks, subsequent_indent=blanks) def get_abs_module(testdir, test): if test.startswith('test.') or testdir: return test else: # Always import it from the test package return 'test.' + test def _list_cases(suite): for test in suite: if isinstance(test, unittest.TestSuite): _list_cases(test) elif isinstance(test, unittest.TestCase): if support.match_test(test): print(test.id()) def list_cases(testdir, selected, match_tests): support.verbose = False support.set_match_tests(match_tests) save_modules = set(sys.modules) skipped = [] for test in selected: abstest = get_abs_module(testdir, test) try: suite = unittest.defaultTestLoader.loadTestsFromName(abstest) _list_cases(suite) except unittest.SkipTest: skipped.append(test) unload_test_modules(save_modules) if skipped: print >>sys.stderr print >>sys.stderr, count(len(skipped), "test"), "skipped:" printlist(skipped, file=sys.stderr) # 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_timeout # Controlled by test_timeout.skip_expected. Requires the network # resource and a socket module. # # Tests that are expected to be skipped everywhere except on one platform # are also handled separately. _expectations = { 'win32': """ test__locale test_bsddb185 test_bsddb3 test_commands test_crypt test_curses test_dbm test_dl test_fcntl test_fork1 test_epoll test_gdbm test_grp test_ioctl test_largefile test_kqueue test_mhlib test_openpty test_ossaudiodev test_pipes test_poll test_posix test_pty test_pwd test_resource test_signal test_spwd test_threadsignals test_timing test_wait3 test_wait4 """, 'linux2': """ test_bsddb185 test_curses test_dl test_largefile test_kqueue test_ossaudiodev """, 'unixware7': """ test_bsddb test_bsddb185 test_dl test_epoll test_largefile test_kqueue test_minidom test_openpty test_pyexpat test_sax test_sundry """, 'openunix8': """ test_bsddb test_bsddb185 test_dl test_epoll test_largefile test_kqueue test_minidom test_openpty test_pyexpat test_sax test_sundry """, 'sco_sv3': """ test_asynchat test_bsddb test_bsddb185 test_dl test_fork1 test_epoll test_gettext test_largefile test_locale test_kqueue test_minidom test_openpty test_pyexpat test_queue test_sax test_sundry test_thread test_threaded_import test_threadedtempfile test_threading """, 'riscos': """ test_asynchat test_atexit test_bsddb test_bsddb185 test_bsddb3 test_commands test_crypt test_dbm test_dl test_fcntl test_fork1 test_epoll test_gdbm test_grp test_largefile test_locale test_kqueue test_mmap test_openpty test_poll test_popen2 test_pty test_pwd test_strop test_sundry test_thread test_threaded_import test_threadedtempfile test_threading test_timing """, 'darwin': """ test__locale test_bsddb test_bsddb3 test_curses test_epoll test_gdb test_gdbm test_largefile test_locale test_kqueue test_minidom test_ossaudiodev test_poll """, 'sunos5': """ test_bsddb test_bsddb185 test_curses test_dbm test_epoll test_kqueue test_gdbm test_gzip test_openpty test_zipfile test_zlib """, 'hp-ux11': """ test_bsddb test_bsddb185 test_curses test_dl test_epoll test_gdbm test_gzip test_largefile test_locale test_kqueue test_minidom test_openpty test_pyexpat test_sax test_zipfile test_zlib """, 'atheos': """ test_bsddb185 test_curses test_dl test_gdbm test_epoll test_largefile test_locale test_kqueue test_mhlib test_mmap test_poll test_popen2 test_resource """, 'cygwin': """ test_bsddb185 test_bsddb3 test_curses test_dbm test_epoll test_ioctl test_kqueue test_largefile test_locale test_ossaudiodev test_socketserver """, 'os2emx': """ test_audioop test_bsddb185 test_bsddb3 test_commands test_curses test_dl test_epoll test_kqueue test_largefile test_mhlib test_mmap test_openpty test_ossaudiodev test_pty test_resource test_signal """, 'freebsd4': """ test_bsddb test_bsddb3 test_epoll test_gdbm test_locale test_ossaudiodev test_pep277 test_pty test_socketserver test_tcl test_tk test_ttk_guionly test_ttk_textonly test_timeout test_urllibnet test_multiprocessing """, 'aix5': """ test_bsddb test_bsddb185 test_bsddb3 test_bz2 test_dl test_epoll test_gdbm test_gzip test_kqueue test_ossaudiodev test_tcl test_tk test_ttk_guionly test_ttk_textonly test_zipimport test_zlib """, 'openbsd3': """ test_ascii_formatd test_bsddb test_bsddb3 test_ctypes test_dl test_epoll test_gdbm test_locale test_normalization test_ossaudiodev test_pep277 test_tcl test_tk test_ttk_guionly test_ttk_textonly test_multiprocessing """, 'netbsd3': """ test_ascii_formatd test_bsddb test_bsddb185 test_bsddb3 test_ctypes test_curses test_dl test_epoll test_gdbm test_locale test_ossaudiodev test_pep277 test_tcl test_tk test_ttk_guionly test_ttk_textonly test_multiprocessing """, } _expectations['freebsd5'] = _expectations['freebsd4'] _expectations['freebsd6'] = _expectations['freebsd4'] _expectations['freebsd7'] = _expectations['freebsd4'] _expectations['freebsd8'] = _expectations['freebsd4'] class _ExpectedSkips: def __init__(self): import os.path from test import test_timeout self.valid = False if sys.platform in _expectations: s = _expectations[sys.platform] self.expected = set(s.split()) # expected to be skipped on every platform, even Linux self.expected.add('test_linuxaudiodev') if not os.path.supports_unicode_filenames: self.expected.add('test_pep277') if test_timeout.skip_expected: self.expected.add('test_timeout') if sys.maxint == 9223372036854775807L: self.expected.add('test_imageop') if sys.platform != "darwin": MAC_ONLY = ["test_macos", "test_macostools", "test_aepack", "test_plistlib", "test_scriptpackages", "test_applesingle"] for skip in MAC_ONLY: self.expected.add(skip) elif len(u'\0'.encode('unicode-internal')) == 4: self.expected.add("test_macostools") if sys.platform != "win32": # test_sqlite is only reliable on Windows where the library # is distributed with Python WIN_ONLY = ["test_unicode_file", "test_winreg", "test_winsound", "test_startfile", "test_sqlite", "test_msilib"] for skip in WIN_ONLY: self.expected.add(skip) if sys.platform != 'irix': IRIX_ONLY = ["test_imageop", "test_al", "test_cd", "test_cl", "test_gl", "test_imgfile"] for skip in IRIX_ONLY: self.expected.add(skip) if sys.platform != 'sunos5': self.expected.add('test_sunaudiodev') self.expected.add('test_nis') if not sys.py3kwarning: self.expected.add('test_py3kwarn') 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 def main_in_temp_cwd(): """Run main() in a temporary working directory.""" global TEMPDIR # When tests are run from the Python build directory, it is best practice # to keep the test files in a subfolder. It eases the cleanup of leftover # files using command "make distclean". if sysconfig.is_python_build(): TEMPDIR = os.path.join(sysconfig.get_config_var('srcdir'), 'build') TEMPDIR = os.path.abspath(TEMPDIR) if not os.path.exists(TEMPDIR): os.mkdir(TEMPDIR) # Define a writable temp dir that will be used as cwd while running # the tests. The name of the dir includes the pid to allow parallel # testing (see the -j option). TESTCWD = 'test_python_{}'.format(os.getpid()) TESTCWD = os.path.join(TEMPDIR, TESTCWD) # Run the tests in a context manager that temporary changes the CWD to a # temporary and writable directory. If it's not possible to create or # change the CWD, the original CWD will be used. The original CWD is # available from support.SAVEDCWD. with support.temp_cwd(TESTCWD, quiet=True): main() if __name__ == '__main__': # findtestdir() gets the dirname out of __file__, so we have to make it # absolute before changing the working directory. # For example __file__ may be relative when running trace or profile. # See issue #9323. global __file__ __file__ = os.path.abspath(__file__) # sanity check assert __file__ == os.path.abspath(sys.argv[0]) main_in_temp_cwd()