cpython/Lib/test/test_regrtest.py

1857 lines
68 KiB
Python

"""
Tests of regrtest.py.
Note: test_regrtest cannot be run twice in parallel.
"""
import contextlib
import dataclasses
import glob
import io
import locale
import os.path
import platform
import re
import subprocess
import sys
import sysconfig
import tempfile
import textwrap
import unittest
from test import libregrtest
from test import support
from test.support import os_helper, TestStats
from test.libregrtest import utils, setup
from test.libregrtest.runtest import normalize_test_name
if not support.has_subprocess_support:
raise unittest.SkipTest("test module requires subprocess")
ROOT_DIR = os.path.join(os.path.dirname(__file__), '..', '..')
ROOT_DIR = os.path.abspath(os.path.normpath(ROOT_DIR))
LOG_PREFIX = r'[0-9]+:[0-9]+:[0-9]+ (?:load avg: [0-9]+\.[0-9]{2} )?'
EXITCODE_BAD_TEST = 2
EXITCODE_ENV_CHANGED = 3
EXITCODE_NO_TESTS_RAN = 4
EXITCODE_RERUN_FAIL = 5
EXITCODE_INTERRUPTED = 130
TEST_INTERRUPTED = textwrap.dedent("""
from signal import SIGINT, raise_signal
try:
raise_signal(SIGINT)
except ImportError:
import os
os.kill(os.getpid(), SIGINT)
""")
class ParseArgsTestCase(unittest.TestCase):
"""
Test regrtest's argument parsing, function _parse_args().
"""
def checkError(self, args, msg):
with support.captured_stderr() as err, self.assertRaises(SystemExit):
libregrtest._parse_args(args)
self.assertIn(msg, err.getvalue())
def test_help(self):
for opt in '-h', '--help':
with self.subTest(opt=opt):
with support.captured_stdout() as out, \
self.assertRaises(SystemExit):
libregrtest._parse_args([opt])
self.assertIn('Run Python regression tests.', out.getvalue())
def test_timeout(self):
ns = libregrtest._parse_args(['--timeout', '4.2'])
self.assertEqual(ns.timeout, 4.2)
self.checkError(['--timeout'], 'expected one argument')
self.checkError(['--timeout', 'foo'], 'invalid float value')
def test_wait(self):
ns = libregrtest._parse_args(['--wait'])
self.assertTrue(ns.wait)
def test_worker_args(self):
ns = libregrtest._parse_args(['--worker-args', '[[], {}]'])
self.assertEqual(ns.worker_args, '[[], {}]')
self.checkError(['--worker-args'], 'expected one argument')
def test_start(self):
for opt in '-S', '--start':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, 'foo'])
self.assertEqual(ns.start, 'foo')
self.checkError([opt], 'expected one argument')
def test_verbose(self):
ns = libregrtest._parse_args(['-v'])
self.assertEqual(ns.verbose, 1)
ns = libregrtest._parse_args(['-vvv'])
self.assertEqual(ns.verbose, 3)
ns = libregrtest._parse_args(['--verbose'])
self.assertEqual(ns.verbose, 1)
ns = libregrtest._parse_args(['--verbose'] * 3)
self.assertEqual(ns.verbose, 3)
ns = libregrtest._parse_args([])
self.assertEqual(ns.verbose, 0)
def test_rerun(self):
for opt in '-w', '--rerun', '--verbose2':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.rerun)
def test_verbose3(self):
for opt in '-W', '--verbose3':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.verbose3)
def test_quiet(self):
for opt in '-q', '--quiet':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.quiet)
self.assertEqual(ns.verbose, 0)
def test_slowest(self):
for opt in '-o', '--slowest':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.print_slow)
def test_header(self):
ns = libregrtest._parse_args(['--header'])
self.assertTrue(ns.header)
ns = libregrtest._parse_args(['--verbose'])
self.assertTrue(ns.header)
def test_randomize(self):
for opt in '-r', '--randomize':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.randomize)
def test_randseed(self):
ns = libregrtest._parse_args(['--randseed', '12345'])
self.assertEqual(ns.random_seed, 12345)
self.assertTrue(ns.randomize)
self.checkError(['--randseed'], 'expected one argument')
self.checkError(['--randseed', 'foo'], 'invalid int value')
def test_fromfile(self):
for opt in '-f', '--fromfile':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, 'foo'])
self.assertEqual(ns.fromfile, 'foo')
self.checkError([opt], 'expected one argument')
self.checkError([opt, 'foo', '-s'], "don't go together")
def test_exclude(self):
for opt in '-x', '--exclude':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.exclude)
def test_single(self):
for opt in '-s', '--single':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.single)
self.checkError([opt, '-f', 'foo'], "don't go together")
def test_ignore(self):
for opt in '-i', '--ignore':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, 'pattern'])
self.assertEqual(ns.ignore_tests, ['pattern'])
self.checkError([opt], 'expected one argument')
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
with open(os_helper.TESTFN, "w") as fp:
print('matchfile1', file=fp)
print('matchfile2', file=fp)
filename = os.path.abspath(os_helper.TESTFN)
ns = libregrtest._parse_args(['-m', 'match',
'--ignorefile', filename])
self.assertEqual(ns.ignore_tests,
['matchfile1', 'matchfile2'])
def test_match(self):
for opt in '-m', '--match':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, 'pattern'])
self.assertEqual(ns.match_tests, ['pattern'])
self.checkError([opt], 'expected one argument')
ns = libregrtest._parse_args(['-m', 'pattern1',
'-m', 'pattern2'])
self.assertEqual(ns.match_tests, ['pattern1', 'pattern2'])
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
with open(os_helper.TESTFN, "w") as fp:
print('matchfile1', file=fp)
print('matchfile2', file=fp)
filename = os.path.abspath(os_helper.TESTFN)
ns = libregrtest._parse_args(['-m', 'match',
'--matchfile', filename])
self.assertEqual(ns.match_tests,
['match', 'matchfile1', 'matchfile2'])
def test_failfast(self):
for opt in '-G', '--failfast':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, '-v'])
self.assertTrue(ns.failfast)
ns = libregrtest._parse_args([opt, '-W'])
self.assertTrue(ns.failfast)
self.checkError([opt], '-G/--failfast needs either -v or -W')
def test_use(self):
for opt in '-u', '--use':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, 'gui,network'])
self.assertEqual(ns.use_resources, ['gui', 'network'])
ns = libregrtest._parse_args([opt, 'gui,none,network'])
self.assertEqual(ns.use_resources, ['network'])
expected = list(libregrtest.ALL_RESOURCES)
expected.remove('gui')
ns = libregrtest._parse_args([opt, 'all,-gui'])
self.assertEqual(ns.use_resources, expected)
self.checkError([opt], 'expected one argument')
self.checkError([opt, 'foo'], 'invalid resource')
# all + a resource not part of "all"
ns = libregrtest._parse_args([opt, 'all,tzdata'])
self.assertEqual(ns.use_resources,
list(libregrtest.ALL_RESOURCES) + ['tzdata'])
# test another resource which is not part of "all"
ns = libregrtest._parse_args([opt, 'extralargefile'])
self.assertEqual(ns.use_resources, ['extralargefile'])
def test_memlimit(self):
for opt in '-M', '--memlimit':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, '4G'])
self.assertEqual(ns.memlimit, '4G')
self.checkError([opt], 'expected one argument')
def test_testdir(self):
ns = libregrtest._parse_args(['--testdir', 'foo'])
self.assertEqual(ns.testdir, os.path.join(os_helper.SAVEDCWD, 'foo'))
self.checkError(['--testdir'], 'expected one argument')
def test_runleaks(self):
for opt in '-L', '--runleaks':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.runleaks)
def test_huntrleaks(self):
for opt in '-R', '--huntrleaks':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, ':'])
self.assertEqual(ns.huntrleaks, (5, 4, 'reflog.txt'))
ns = libregrtest._parse_args([opt, '6:'])
self.assertEqual(ns.huntrleaks, (6, 4, 'reflog.txt'))
ns = libregrtest._parse_args([opt, ':3'])
self.assertEqual(ns.huntrleaks, (5, 3, 'reflog.txt'))
ns = libregrtest._parse_args([opt, '6:3:leaks.log'])
self.assertEqual(ns.huntrleaks, (6, 3, 'leaks.log'))
self.checkError([opt], 'expected one argument')
self.checkError([opt, '6'],
'needs 2 or 3 colon-separated arguments')
self.checkError([opt, 'foo:'], 'invalid huntrleaks value')
self.checkError([opt, '6:foo'], 'invalid huntrleaks value')
def test_multiprocess(self):
for opt in '-j', '--multiprocess':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, '2'])
self.assertEqual(ns.use_mp, 2)
self.checkError([opt], 'expected one argument')
self.checkError([opt, 'foo'], 'invalid int value')
self.checkError([opt, '2', '-T'], "don't go together")
self.checkError([opt, '0', '-T'], "don't go together")
def test_coverage(self):
for opt in '-T', '--coverage':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.trace)
def test_coverdir(self):
for opt in '-D', '--coverdir':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, 'foo'])
self.assertEqual(ns.coverdir,
os.path.join(os_helper.SAVEDCWD, 'foo'))
self.checkError([opt], 'expected one argument')
def test_nocoverdir(self):
for opt in '-N', '--nocoverdir':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertIsNone(ns.coverdir)
def test_threshold(self):
for opt in '-t', '--threshold':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt, '1000'])
self.assertEqual(ns.threshold, 1000)
self.checkError([opt], 'expected one argument')
self.checkError([opt, 'foo'], 'invalid int value')
def test_nowindows(self):
for opt in '-n', '--nowindows':
with self.subTest(opt=opt):
with contextlib.redirect_stderr(io.StringIO()) as stderr:
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.nowindows)
err = stderr.getvalue()
self.assertIn('the --nowindows (-n) option is deprecated', err)
def test_forever(self):
for opt in '-F', '--forever':
with self.subTest(opt=opt):
ns = libregrtest._parse_args([opt])
self.assertTrue(ns.forever)
def test_unrecognized_argument(self):
self.checkError(['--xxx'], 'usage:')
def test_long_option__partial(self):
ns = libregrtest._parse_args(['--qui'])
self.assertTrue(ns.quiet)
self.assertEqual(ns.verbose, 0)
def test_two_options(self):
ns = libregrtest._parse_args(['--quiet', '--exclude'])
self.assertTrue(ns.quiet)
self.assertEqual(ns.verbose, 0)
self.assertTrue(ns.exclude)
def test_option_with_empty_string_value(self):
ns = libregrtest._parse_args(['--start', ''])
self.assertEqual(ns.start, '')
def test_arg(self):
ns = libregrtest._parse_args(['foo'])
self.assertEqual(ns.args, ['foo'])
def test_option_and_arg(self):
ns = libregrtest._parse_args(['--quiet', 'foo'])
self.assertTrue(ns.quiet)
self.assertEqual(ns.verbose, 0)
self.assertEqual(ns.args, ['foo'])
def test_arg_option_arg(self):
ns = libregrtest._parse_args(['test_unaryop', '-v', 'test_binop'])
self.assertEqual(ns.verbose, 1)
self.assertEqual(ns.args, ['test_unaryop', 'test_binop'])
def test_unknown_option(self):
self.checkError(['--unknown-option'],
'unrecognized arguments: --unknown-option')
@dataclasses.dataclass(slots=True)
class Rerun:
name: str
match: str | None
success: bool
class BaseTestCase(unittest.TestCase):
TEST_UNIQUE_ID = 1
TESTNAME_PREFIX = 'test_regrtest_'
TESTNAME_REGEX = r'test_[a-zA-Z0-9_]+'
def setUp(self):
self.testdir = os.path.realpath(os.path.dirname(__file__))
self.tmptestdir = tempfile.mkdtemp()
self.addCleanup(os_helper.rmtree, self.tmptestdir)
def create_test(self, name=None, code=None):
if not name:
name = 'noop%s' % BaseTestCase.TEST_UNIQUE_ID
BaseTestCase.TEST_UNIQUE_ID += 1
if code is None:
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_empty_test(self):
pass
""")
# test_regrtest cannot be run twice in parallel because
# of setUp() and create_test()
name = self.TESTNAME_PREFIX + name
path = os.path.join(self.tmptestdir, name + '.py')
self.addCleanup(os_helper.unlink, path)
# Use 'x' mode to ensure that we do not override existing tests
try:
with open(path, 'x', encoding='utf-8') as fp:
fp.write(code)
except PermissionError as exc:
if not sysconfig.is_python_build():
self.skipTest("cannot write %s: %s" % (path, exc))
raise
return name
def regex_search(self, regex, output):
match = re.search(regex, output, re.MULTILINE)
if not match:
self.fail("%r not found in %r" % (regex, output))
return match
def check_line(self, output, regex, full=False):
if full:
regex += '\n'
regex = re.compile(r'^' + regex, re.MULTILINE)
self.assertRegex(output, regex)
def parse_executed_tests(self, output):
regex = (r'^%s\[ *[0-9]+(?:/ *[0-9]+)*\] (%s)'
% (LOG_PREFIX, self.TESTNAME_REGEX))
parser = re.finditer(regex, output, re.MULTILINE)
return list(match.group(1) for match in parser)
def check_executed_tests(self, output, tests, skipped=(), failed=(),
env_changed=(), omitted=(),
rerun=None, run_no_tests=(),
resource_denied=(),
randomize=False, interrupted=False,
fail_env_changed=False,
*, stats, forever=False, filtered=False):
if isinstance(tests, str):
tests = [tests]
if isinstance(skipped, str):
skipped = [skipped]
if isinstance(resource_denied, str):
resource_denied = [resource_denied]
if isinstance(failed, str):
failed = [failed]
if isinstance(env_changed, str):
env_changed = [env_changed]
if isinstance(omitted, str):
omitted = [omitted]
if isinstance(run_no_tests, str):
run_no_tests = [run_no_tests]
if isinstance(stats, int):
stats = TestStats(stats)
rerun_failed = []
if rerun is not None:
failed = [rerun.name]
if not rerun.success:
rerun_failed.append(rerun.name)
executed = self.parse_executed_tests(output)
total_tests = list(tests)
if rerun is not None:
total_tests.append(rerun.name)
if randomize:
self.assertEqual(set(executed), set(total_tests), output)
else:
self.assertEqual(executed, total_tests, output)
def plural(count):
return 's' if count != 1 else ''
def list_regex(line_format, tests):
count = len(tests)
names = ' '.join(sorted(tests))
regex = line_format % (count, plural(count))
regex = r'%s:\n %s$' % (regex, names)
return regex
if skipped:
regex = list_regex('%s test%s skipped', skipped)
self.check_line(output, regex)
if resource_denied:
regex = list_regex(r'%s test%s skipped \(resource denied\)', resource_denied)
self.check_line(output, regex)
if failed:
regex = list_regex('%s test%s failed', failed)
self.check_line(output, regex)
if env_changed:
regex = list_regex('%s test%s altered the execution environment',
env_changed)
self.check_line(output, regex)
if omitted:
regex = list_regex('%s test%s omitted', omitted)
self.check_line(output, regex)
if rerun is not None:
regex = list_regex('%s re-run test%s', [rerun.name])
self.check_line(output, regex)
regex = LOG_PREFIX + fr"Re-running 1 failed tests in verbose mode"
self.check_line(output, regex)
regex = fr"Re-running {rerun.name} in verbose mode"
if rerun.match:
regex = fr"{regex} \(matching: {rerun.match}\)"
self.check_line(output, regex)
if run_no_tests:
regex = list_regex('%s test%s run no tests', run_no_tests)
self.check_line(output, regex)
good = (len(tests) - len(skipped) - len(resource_denied) - len(failed)
- len(omitted) - len(env_changed) - len(run_no_tests))
if good:
regex = r'%s test%s OK\.' % (good, plural(good))
if not skipped and not failed and (rerun is None or rerun.success) and good > 1:
regex = 'All %s' % regex
self.check_line(output, regex, full=True)
if interrupted:
self.check_line(output, 'Test suite interrupted by signal SIGINT.')
# Total tests
text = f'run={stats.tests_run:,}'
if filtered:
text = fr'{text} \(filtered\)'
parts = [text]
if stats.failures:
parts.append(f'failures={stats.failures:,}')
if stats.skipped:
parts.append(f'skipped={stats.skipped:,}')
line = fr'Total tests: {" ".join(parts)}'
self.check_line(output, line, full=True)
# Total test files
run = len(total_tests) - len(resource_denied)
if rerun is not None:
total_failed = len(rerun_failed)
total_rerun = 1
else:
total_failed = len(failed)
total_rerun = 0
if interrupted:
run = 0
text = f'run={run}'
if not forever:
text = f'{text}/{len(tests)}'
if filtered:
text = fr'{text} \(filtered\)'
report = [text]
for name, ntest in (
('failed', total_failed),
('env_changed', len(env_changed)),
('skipped', len(skipped)),
('resource_denied', len(resource_denied)),
('rerun', total_rerun),
('run_no_tests', len(run_no_tests)),
):
if ntest:
report.append(f'{name}={ntest}')
line = fr'Total test files: {" ".join(report)}'
self.check_line(output, line, full=True)
# Result
state = []
if failed:
state.append('FAILURE')
elif fail_env_changed and env_changed:
state.append('ENV CHANGED')
if interrupted:
state.append('INTERRUPTED')
if not any((good, failed, interrupted, skipped,
env_changed, fail_env_changed)):
state.append("NO TESTS RAN")
elif not state:
state.append('SUCCESS')
state = ', '.join(state)
if rerun is not None:
new_state = 'SUCCESS' if rerun.success else 'FAILURE'
state = 'FAILURE then ' + new_state
self.check_line(output, f'Result: {state}', full=True)
def parse_random_seed(self, output):
match = self.regex_search(r'Using random seed ([0-9]+)', output)
randseed = int(match.group(1))
self.assertTrue(0 <= randseed <= 10000000, randseed)
return randseed
def run_command(self, args, input=None, exitcode=0, **kw):
if not input:
input = ''
if 'stderr' not in kw:
kw['stderr'] = subprocess.STDOUT
proc = subprocess.run(args,
universal_newlines=True,
input=input,
stdout=subprocess.PIPE,
**kw)
if proc.returncode != exitcode:
msg = ("Command %s failed with exit code %s, but exit code %s expected!\n"
"\n"
"stdout:\n"
"---\n"
"%s\n"
"---\n"
% (str(args), proc.returncode, exitcode, proc.stdout))
if proc.stderr:
msg += ("\n"
"stderr:\n"
"---\n"
"%s"
"---\n"
% proc.stderr)
self.fail(msg)
return proc
def run_python(self, args, **kw):
extraargs = []
if 'uops' in sys._xoptions:
# Pass -X uops along
extraargs.extend(['-X', 'uops'])
args = [sys.executable, *extraargs, '-X', 'faulthandler', '-I', *args]
proc = self.run_command(args, **kw)
return proc.stdout
class CheckActualTests(BaseTestCase):
def test_finds_expected_number_of_tests(self):
"""
Check that regrtest appears to find the expected set of tests.
"""
args = ['-Wd', '-E', '-bb', '-m', 'test.regrtest', '--list-tests']
output = self.run_python(args)
rough_number_of_tests_found = len(output.splitlines())
actual_testsuite_glob = os.path.join(glob.escape(os.path.dirname(__file__)),
'test*.py')
rough_counted_test_py_files = len(glob.glob(actual_testsuite_glob))
# We're not trying to duplicate test finding logic in here,
# just give a rough estimate of how many there should be and
# be near that. This is a regression test to prevent mishaps
# such as https://bugs.python.org/issue37667 in the future.
# If you need to change the values in here during some
# mythical future test suite reorganization, don't go
# overboard with logic and keep that goal in mind.
self.assertGreater(rough_number_of_tests_found,
rough_counted_test_py_files*9//10,
msg='Unexpectedly low number of tests found in:\n'
f'{", ".join(output.splitlines())}')
class ProgramsTestCase(BaseTestCase):
"""
Test various ways to run the Python test suite. Use options close
to options used on the buildbot.
"""
NTEST = 4
def setUp(self):
super().setUp()
# Create NTEST tests doing nothing
self.tests = [self.create_test() for index in range(self.NTEST)]
self.python_args = ['-Wd', '-E', '-bb']
self.regrtest_args = ['-uall', '-rwW',
'--testdir=%s' % self.tmptestdir]
self.regrtest_args.extend(('--timeout', '3600', '-j4'))
if sys.platform == 'win32':
self.regrtest_args.append('-n')
def check_output(self, output):
self.parse_random_seed(output)
self.check_executed_tests(output, self.tests,
randomize=True, stats=len(self.tests))
def run_tests(self, args):
output = self.run_python(args)
self.check_output(output)
def test_script_regrtest(self):
# Lib/test/regrtest.py
script = os.path.join(self.testdir, 'regrtest.py')
args = [*self.python_args, script, *self.regrtest_args, *self.tests]
self.run_tests(args)
def test_module_test(self):
# -m test
args = [*self.python_args, '-m', 'test',
*self.regrtest_args, *self.tests]
self.run_tests(args)
def test_module_regrtest(self):
# -m test.regrtest
args = [*self.python_args, '-m', 'test.regrtest',
*self.regrtest_args, *self.tests]
self.run_tests(args)
def test_module_autotest(self):
# -m test.autotest
args = [*self.python_args, '-m', 'test.autotest',
*self.regrtest_args, *self.tests]
self.run_tests(args)
def test_module_from_test_autotest(self):
# from test import autotest
code = 'from test import autotest'
args = [*self.python_args, '-c', code,
*self.regrtest_args, *self.tests]
self.run_tests(args)
def test_script_autotest(self):
# Lib/test/autotest.py
script = os.path.join(self.testdir, 'autotest.py')
args = [*self.python_args, script, *self.regrtest_args, *self.tests]
self.run_tests(args)
@unittest.skipUnless(sysconfig.is_python_build(),
'run_tests.py script is not installed')
def test_tools_script_run_tests(self):
# Tools/scripts/run_tests.py
script = os.path.join(ROOT_DIR, 'Tools', 'scripts', 'run_tests.py')
args = [script, *self.regrtest_args, *self.tests]
self.run_tests(args)
def run_batch(self, *args):
proc = self.run_command(args)
self.check_output(proc.stdout)
@unittest.skipUnless(sysconfig.is_python_build(),
'test.bat script is not installed')
@unittest.skipUnless(sys.platform == 'win32', 'Windows only')
def test_tools_buildbot_test(self):
# Tools\buildbot\test.bat
script = os.path.join(ROOT_DIR, 'Tools', 'buildbot', 'test.bat')
test_args = ['--testdir=%s' % self.tmptestdir]
if platform.machine() == 'ARM64':
test_args.append('-arm64') # ARM 64-bit build
elif platform.machine() == 'ARM':
test_args.append('-arm32') # 32-bit ARM build
elif platform.architecture()[0] == '64bit':
test_args.append('-x64') # 64-bit build
if not support.Py_DEBUG:
test_args.append('+d') # Release build, use python.exe
self.run_batch(script, *test_args, *self.tests)
@unittest.skipUnless(sys.platform == 'win32', 'Windows only')
def test_pcbuild_rt(self):
# PCbuild\rt.bat
script = os.path.join(ROOT_DIR, r'PCbuild\rt.bat')
if not os.path.isfile(script):
self.skipTest(f'File "{script}" does not exist')
rt_args = ["-q"] # Quick, don't run tests twice
if platform.machine() == 'ARM64':
rt_args.append('-arm64') # ARM 64-bit build
elif platform.machine() == 'ARM':
rt_args.append('-arm32') # 32-bit ARM build
elif platform.architecture()[0] == '64bit':
rt_args.append('-x64') # 64-bit build
if support.Py_DEBUG:
rt_args.append('-d') # Debug build, use python_d.exe
self.run_batch(script, *rt_args, *self.regrtest_args, *self.tests)
class ArgsTestCase(BaseTestCase):
"""
Test arguments of the Python test suite.
"""
def run_tests(self, *testargs, **kw):
cmdargs = ['-m', 'test', '--testdir=%s' % self.tmptestdir, *testargs]
return self.run_python(cmdargs, **kw)
def test_success(self):
code = textwrap.dedent("""
import unittest
class PassingTests(unittest.TestCase):
def test_test1(self):
pass
def test_test2(self):
pass
def test_test3(self):
pass
""")
tests = [self.create_test(f'ok{i}', code=code) for i in range(1, 6)]
output = self.run_tests(*tests)
self.check_executed_tests(output, tests,
stats=3 * len(tests))
def test_skip(self):
code = textwrap.dedent("""
import unittest
raise unittest.SkipTest("nope")
""")
test_ok = self.create_test('ok')
test_skip = self.create_test('skip', code=code)
tests = [test_ok, test_skip]
output = self.run_tests(*tests)
self.check_executed_tests(output, tests,
skipped=[test_skip],
stats=1)
def test_failing_test(self):
# test a failing test
code = textwrap.dedent("""
import unittest
class FailingTest(unittest.TestCase):
def test_failing(self):
self.fail("bug")
""")
test_ok = self.create_test('ok')
test_failing = self.create_test('failing', code=code)
tests = [test_ok, test_failing]
output = self.run_tests(*tests, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, tests, failed=test_failing,
stats=TestStats(2, 1))
def test_resources(self):
# test -u command line option
tests = {}
for resource in ('audio', 'network'):
code = textwrap.dedent("""
from test import support; support.requires(%r)
import unittest
class PassingTest(unittest.TestCase):
def test_pass(self):
pass
""" % resource)
tests[resource] = self.create_test(resource, code)
test_names = sorted(tests.values())
# -u all: 2 resources enabled
output = self.run_tests('-u', 'all', *test_names)
self.check_executed_tests(output, test_names, stats=2)
# -u audio: 1 resource enabled
output = self.run_tests('-uaudio', *test_names)
self.check_executed_tests(output, test_names,
resource_denied=tests['network'],
stats=1)
# no option: 0 resources enabled
output = self.run_tests(*test_names, exitcode=EXITCODE_NO_TESTS_RAN)
self.check_executed_tests(output, test_names,
resource_denied=test_names,
stats=0)
def test_random(self):
# test -r and --randseed command line option
code = textwrap.dedent("""
import random
print("TESTRANDOM: %s" % random.randint(1, 1000))
""")
test = self.create_test('random', code)
# first run to get the output with the random seed
output = self.run_tests('-r', test, exitcode=EXITCODE_NO_TESTS_RAN)
randseed = self.parse_random_seed(output)
match = self.regex_search(r'TESTRANDOM: ([0-9]+)', output)
test_random = int(match.group(1))
# try to reproduce with the random seed
output = self.run_tests('-r', '--randseed=%s' % randseed, test,
exitcode=EXITCODE_NO_TESTS_RAN)
randseed2 = self.parse_random_seed(output)
self.assertEqual(randseed2, randseed)
match = self.regex_search(r'TESTRANDOM: ([0-9]+)', output)
test_random2 = int(match.group(1))
self.assertEqual(test_random2, test_random)
def test_fromfile(self):
# test --fromfile
tests = [self.create_test() for index in range(5)]
# Write the list of files using a format similar to regrtest output:
# [1/2] test_1
# [2/2] test_2
filename = os_helper.TESTFN
self.addCleanup(os_helper.unlink, filename)
# test format '0:00:00 [2/7] test_opcodes -- test_grammar took 0 sec'
with open(filename, "w") as fp:
previous = None
for index, name in enumerate(tests, 1):
line = ("00:00:%02i [%s/%s] %s"
% (index, index, len(tests), name))
if previous:
line += " -- %s took 0 sec" % previous
print(line, file=fp)
previous = name
output = self.run_tests('--fromfile', filename)
stats = len(tests)
self.check_executed_tests(output, tests, stats=stats)
# test format '[2/7] test_opcodes'
with open(filename, "w") as fp:
for index, name in enumerate(tests, 1):
print("[%s/%s] %s" % (index, len(tests), name), file=fp)
output = self.run_tests('--fromfile', filename)
self.check_executed_tests(output, tests, stats=stats)
# test format 'test_opcodes'
with open(filename, "w") as fp:
for name in tests:
print(name, file=fp)
output = self.run_tests('--fromfile', filename)
self.check_executed_tests(output, tests, stats=stats)
# test format 'Lib/test/test_opcodes.py'
with open(filename, "w") as fp:
for name in tests:
print('Lib/test/%s.py' % name, file=fp)
output = self.run_tests('--fromfile', filename)
self.check_executed_tests(output, tests, stats=stats)
def test_interrupted(self):
code = TEST_INTERRUPTED
test = self.create_test('sigint', code=code)
output = self.run_tests(test, exitcode=EXITCODE_INTERRUPTED)
self.check_executed_tests(output, test, omitted=test,
interrupted=True, stats=0)
def test_slowest(self):
# test --slowest
tests = [self.create_test() for index in range(3)]
output = self.run_tests("--slowest", *tests)
self.check_executed_tests(output, tests, stats=len(tests))
regex = ('10 slowest tests:\n'
'(?:- %s: .*\n){%s}'
% (self.TESTNAME_REGEX, len(tests)))
self.check_line(output, regex)
def test_slowest_interrupted(self):
# Issue #25373: test --slowest with an interrupted test
code = TEST_INTERRUPTED
test = self.create_test("sigint", code=code)
for multiprocessing in (False, True):
with self.subTest(multiprocessing=multiprocessing):
if multiprocessing:
args = ("--slowest", "-j2", test)
else:
args = ("--slowest", test)
output = self.run_tests(*args, exitcode=EXITCODE_INTERRUPTED)
self.check_executed_tests(output, test,
omitted=test, interrupted=True,
stats=0)
regex = ('10 slowest tests:\n')
self.check_line(output, regex)
def test_coverage(self):
# test --coverage
test = self.create_test('coverage')
output = self.run_tests("--coverage", test)
self.check_executed_tests(output, [test], stats=1)
regex = (r'lines +cov% +module +\(path\)\n'
r'(?: *[0-9]+ *[0-9]{1,2}% *[^ ]+ +\([^)]+\)+)+')
self.check_line(output, regex)
def test_wait(self):
# test --wait
test = self.create_test('wait')
output = self.run_tests("--wait", test, input='key')
self.check_line(output, 'Press any key to continue')
def test_forever(self):
# test --forever
code = textwrap.dedent("""
import builtins
import unittest
class ForeverTester(unittest.TestCase):
def test_run(self):
# Store the state in the builtins module, because the test
# module is reload at each run
if 'RUN' in builtins.__dict__:
builtins.__dict__['RUN'] += 1
if builtins.__dict__['RUN'] >= 3:
self.fail("fail at the 3rd runs")
else:
builtins.__dict__['RUN'] = 1
""")
test = self.create_test('forever', code=code)
# --forever
output = self.run_tests('--forever', test, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, [test]*3, failed=test,
stats=TestStats(3, 1),
forever=True)
# --forever --rerun
output = self.run_tests('--forever', '--rerun', test, exitcode=0)
self.check_executed_tests(output, [test]*3,
rerun=Rerun(test,
match='test_run',
success=True),
stats=TestStats(4, 1),
forever=True)
def check_leak(self, code, what):
test = self.create_test('huntrleaks', code=code)
filename = 'reflog.txt'
self.addCleanup(os_helper.unlink, filename)
output = self.run_tests('--huntrleaks', '6:3:', test,
exitcode=EXITCODE_BAD_TEST,
stderr=subprocess.STDOUT)
self.check_executed_tests(output, [test], failed=test, stats=1)
line = 'beginning 9 repetitions\n123456789\n.........\n'
self.check_line(output, re.escape(line))
line2 = '%s leaked [1, 1, 1] %s, sum=3\n' % (test, what)
self.assertIn(line2, output)
with open(filename) as fp:
reflog = fp.read()
self.assertIn(line2, reflog)
@unittest.skipUnless(support.Py_DEBUG, 'need a debug build')
def test_huntrleaks(self):
# test --huntrleaks
code = textwrap.dedent("""
import unittest
GLOBAL_LIST = []
class RefLeakTest(unittest.TestCase):
def test_leak(self):
GLOBAL_LIST.append(object())
""")
self.check_leak(code, 'references')
@unittest.skipUnless(support.Py_DEBUG, 'need a debug build')
def test_huntrleaks_fd_leak(self):
# test --huntrleaks for file descriptor leak
code = textwrap.dedent("""
import os
import unittest
class FDLeakTest(unittest.TestCase):
def test_leak(self):
fd = os.open(__file__, os.O_RDONLY)
# bug: never close the file descriptor
""")
self.check_leak(code, 'file descriptors')
def test_list_tests(self):
# test --list-tests
tests = [self.create_test() for i in range(5)]
output = self.run_tests('--list-tests', *tests)
self.assertEqual(output.rstrip().splitlines(),
tests)
def test_list_cases(self):
# test --list-cases
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_method1(self):
pass
def test_method2(self):
pass
""")
testname = self.create_test(code=code)
# Test --list-cases
all_methods = ['%s.Tests.test_method1' % testname,
'%s.Tests.test_method2' % testname]
output = self.run_tests('--list-cases', testname)
self.assertEqual(output.splitlines(), all_methods)
# Test --list-cases with --match
all_methods = ['%s.Tests.test_method1' % testname]
output = self.run_tests('--list-cases',
'-m', 'test_method1',
testname)
self.assertEqual(output.splitlines(), all_methods)
@support.cpython_only
def test_crashed(self):
# Any code which causes a crash
code = 'import faulthandler; faulthandler._sigsegv()'
crash_test = self.create_test(name="crash", code=code)
tests = [crash_test]
output = self.run_tests("-j2", *tests, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, tests, failed=crash_test,
randomize=True, stats=0)
def parse_methods(self, output):
regex = re.compile("^(test[^ ]+).*ok$", flags=re.MULTILINE)
return [match.group(1) for match in regex.finditer(output)]
def test_ignorefile(self):
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_method1(self):
pass
def test_method2(self):
pass
def test_method3(self):
pass
def test_method4(self):
pass
""")
all_methods = ['test_method1', 'test_method2',
'test_method3', 'test_method4']
testname = self.create_test(code=code)
# only run a subset
filename = os_helper.TESTFN
self.addCleanup(os_helper.unlink, filename)
subset = [
# only ignore the method name
'test_method1',
# ignore the full identifier
'%s.Tests.test_method3' % testname]
with open(filename, "w") as fp:
for name in subset:
print(name, file=fp)
output = self.run_tests("-v", "--ignorefile", filename, testname)
methods = self.parse_methods(output)
subset = ['test_method2', 'test_method4']
self.assertEqual(methods, subset)
def test_matchfile(self):
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_method1(self):
pass
def test_method2(self):
pass
def test_method3(self):
pass
def test_method4(self):
pass
""")
all_methods = ['test_method1', 'test_method2',
'test_method3', 'test_method4']
testname = self.create_test(code=code)
# by default, all methods should be run
output = self.run_tests("-v", testname)
methods = self.parse_methods(output)
self.assertEqual(methods, all_methods)
# only run a subset
filename = os_helper.TESTFN
self.addCleanup(os_helper.unlink, filename)
subset = [
# only match the method name
'test_method1',
# match the full identifier
'%s.Tests.test_method3' % testname]
with open(filename, "w") as fp:
for name in subset:
print(name, file=fp)
output = self.run_tests("-v", "--matchfile", filename, testname)
methods = self.parse_methods(output)
subset = ['test_method1', 'test_method3']
self.assertEqual(methods, subset)
def test_env_changed(self):
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_env_changed(self):
open("env_changed", "w").close()
""")
testname = self.create_test(code=code)
# don't fail by default
output = self.run_tests(testname)
self.check_executed_tests(output, [testname],
env_changed=testname, stats=1)
# fail with --fail-env-changed
output = self.run_tests("--fail-env-changed", testname,
exitcode=EXITCODE_ENV_CHANGED)
self.check_executed_tests(output, [testname], env_changed=testname,
fail_env_changed=True, stats=1)
def test_rerun_fail(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_succeed(self):
return
def test_fail_always(self):
# test that always fails
self.fail("bug")
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, [testname],
rerun=Rerun(testname,
"test_fail_always",
success=False),
stats=TestStats(3, 2))
def test_rerun_success(self):
# FAILURE then SUCCESS
marker_filename = os.path.abspath("regrtest_marker_filename")
self.addCleanup(os_helper.unlink, marker_filename)
self.assertFalse(os.path.exists(marker_filename))
code = textwrap.dedent(f"""
import os.path
import unittest
marker_filename = {marker_filename!r}
class Tests(unittest.TestCase):
def test_succeed(self):
return
def test_fail_once(self):
if not os.path.exists(marker_filename):
open(marker_filename, "w").close()
self.fail("bug")
""")
testname = self.create_test(code=code)
# FAILURE then SUCCESS => exit code 0
output = self.run_tests("--rerun", testname, exitcode=0)
self.check_executed_tests(output, [testname],
rerun=Rerun(testname,
match="test_fail_once",
success=True),
stats=TestStats(3, 1))
os_helper.unlink(marker_filename)
# with --fail-rerun, exit code EXITCODE_RERUN_FAIL
# on "FAILURE then SUCCESS" state.
output = self.run_tests("--rerun", "--fail-rerun", testname,
exitcode=EXITCODE_RERUN_FAIL)
self.check_executed_tests(output, [testname],
rerun=Rerun(testname,
match="test_fail_once",
success=True),
stats=TestStats(3, 1))
os_helper.unlink(marker_filename)
def test_rerun_setup_class_hook_failure(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
class ExampleTests(unittest.TestCase):
@classmethod
def setUpClass(self):
raise RuntimeError('Fail')
def test_success(self):
return
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, testname,
failed=[testname],
rerun=Rerun(testname,
match="ExampleTests",
success=False),
stats=0)
def test_rerun_teardown_class_hook_failure(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
class ExampleTests(unittest.TestCase):
@classmethod
def tearDownClass(self):
raise RuntimeError('Fail')
def test_success(self):
return
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, testname,
failed=[testname],
rerun=Rerun(testname,
match="ExampleTests",
success=False),
stats=2)
def test_rerun_setup_module_hook_failure(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
def setUpModule():
raise RuntimeError('Fail')
class ExampleTests(unittest.TestCase):
def test_success(self):
return
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, testname,
failed=[testname],
rerun=Rerun(testname,
match=None,
success=False),
stats=0)
def test_rerun_teardown_module_hook_failure(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
def tearDownModule():
raise RuntimeError('Fail')
class ExampleTests(unittest.TestCase):
def test_success(self):
return
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, [testname],
failed=[testname],
rerun=Rerun(testname,
match=None,
success=False),
stats=2)
def test_rerun_setup_hook_failure(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
class ExampleTests(unittest.TestCase):
def setUp(self):
raise RuntimeError('Fail')
def test_success(self):
return
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, testname,
failed=[testname],
rerun=Rerun(testname,
match="test_success",
success=False),
stats=2)
def test_rerun_teardown_hook_failure(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
class ExampleTests(unittest.TestCase):
def tearDown(self):
raise RuntimeError('Fail')
def test_success(self):
return
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, testname,
failed=[testname],
rerun=Rerun(testname,
match="test_success",
success=False),
stats=2)
def test_rerun_async_setup_hook_failure(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
class ExampleTests(unittest.IsolatedAsyncioTestCase):
async def asyncSetUp(self):
raise RuntimeError('Fail')
async def test_success(self):
return
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, testname,
rerun=Rerun(testname,
match="test_success",
success=False),
stats=2)
def test_rerun_async_teardown_hook_failure(self):
# FAILURE then FAILURE
code = textwrap.dedent("""
import unittest
class ExampleTests(unittest.IsolatedAsyncioTestCase):
async def asyncTearDown(self):
raise RuntimeError('Fail')
async def test_success(self):
return
""")
testname = self.create_test(code=code)
output = self.run_tests("--rerun", testname, exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, testname,
failed=[testname],
rerun=Rerun(testname,
match="test_success",
success=False),
stats=2)
def test_no_tests_ran(self):
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_bug(self):
pass
""")
testname = self.create_test(code=code)
output = self.run_tests(testname, "-m", "nosuchtest",
exitcode=EXITCODE_NO_TESTS_RAN)
self.check_executed_tests(output, [testname],
run_no_tests=testname,
stats=0, filtered=True)
def test_no_tests_ran_skip(self):
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_skipped(self):
self.skipTest("because")
""")
testname = self.create_test(code=code)
output = self.run_tests(testname)
self.check_executed_tests(output, [testname],
stats=TestStats(1, skipped=1))
def test_no_tests_ran_multiple_tests_nonexistent(self):
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_bug(self):
pass
""")
testname = self.create_test(code=code)
testname2 = self.create_test(code=code)
output = self.run_tests(testname, testname2, "-m", "nosuchtest",
exitcode=EXITCODE_NO_TESTS_RAN)
self.check_executed_tests(output, [testname, testname2],
run_no_tests=[testname, testname2],
stats=0, filtered=True)
def test_no_test_ran_some_test_exist_some_not(self):
code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_bug(self):
pass
""")
testname = self.create_test(code=code)
other_code = textwrap.dedent("""
import unittest
class Tests(unittest.TestCase):
def test_other_bug(self):
pass
""")
testname2 = self.create_test(code=other_code)
output = self.run_tests(testname, testname2, "-m", "nosuchtest",
"-m", "test_other_bug", exitcode=0)
self.check_executed_tests(output, [testname, testname2],
run_no_tests=[testname],
stats=1, filtered=True)
@support.cpython_only
def test_uncollectable(self):
code = textwrap.dedent(r"""
import _testcapi
import gc
import unittest
@_testcapi.with_tp_del
class Garbage:
def __tp_del__(self):
pass
class Tests(unittest.TestCase):
def test_garbage(self):
# create an uncollectable object
obj = Garbage()
obj.ref_cycle = obj
obj = None
""")
testname = self.create_test(code=code)
output = self.run_tests("--fail-env-changed", testname,
exitcode=EXITCODE_ENV_CHANGED)
self.check_executed_tests(output, [testname],
env_changed=[testname],
fail_env_changed=True,
stats=1)
def test_multiprocessing_timeout(self):
code = textwrap.dedent(r"""
import time
import unittest
try:
import faulthandler
except ImportError:
faulthandler = None
class Tests(unittest.TestCase):
# test hangs and so should be stopped by the timeout
def test_sleep(self):
# we want to test regrtest multiprocessing timeout,
# not faulthandler timeout
if faulthandler is not None:
faulthandler.cancel_dump_traceback_later()
time.sleep(60 * 5)
""")
testname = self.create_test(code=code)
output = self.run_tests("-j2", "--timeout=1.0", testname,
exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, [testname],
failed=testname, stats=0)
self.assertRegex(output,
re.compile('%s timed out' % testname, re.MULTILINE))
def test_unraisable_exc(self):
# --fail-env-changed must catch unraisable exception.
# The exception must be displayed even if sys.stderr is redirected.
code = textwrap.dedent(r"""
import unittest
import weakref
from test.support import captured_stderr
class MyObject:
pass
def weakref_callback(obj):
raise Exception("weakref callback bug")
class Tests(unittest.TestCase):
def test_unraisable_exc(self):
obj = MyObject()
ref = weakref.ref(obj, weakref_callback)
with captured_stderr() as stderr:
# call weakref_callback() which logs
# an unraisable exception
obj = None
self.assertEqual(stderr.getvalue(), '')
""")
testname = self.create_test(code=code)
output = self.run_tests("--fail-env-changed", "-v", testname,
exitcode=EXITCODE_ENV_CHANGED)
self.check_executed_tests(output, [testname],
env_changed=[testname],
fail_env_changed=True,
stats=1)
self.assertIn("Warning -- Unraisable exception", output)
self.assertIn("Exception: weakref callback bug", output)
def test_threading_excepthook(self):
# --fail-env-changed must catch uncaught thread exception.
# The exception must be displayed even if sys.stderr is redirected.
code = textwrap.dedent(r"""
import threading
import unittest
from test.support import captured_stderr
class MyObject:
pass
def func_bug():
raise Exception("bug in thread")
class Tests(unittest.TestCase):
def test_threading_excepthook(self):
with captured_stderr() as stderr:
thread = threading.Thread(target=func_bug)
thread.start()
thread.join()
self.assertEqual(stderr.getvalue(), '')
""")
testname = self.create_test(code=code)
output = self.run_tests("--fail-env-changed", "-v", testname,
exitcode=EXITCODE_ENV_CHANGED)
self.check_executed_tests(output, [testname],
env_changed=[testname],
fail_env_changed=True,
stats=1)
self.assertIn("Warning -- Uncaught thread exception", output)
self.assertIn("Exception: bug in thread", output)
def test_print_warning(self):
# bpo-45410: The order of messages must be preserved when -W and
# support.print_warning() are used.
code = textwrap.dedent(r"""
import sys
import unittest
from test import support
class MyObject:
pass
def func_bug():
raise Exception("bug in thread")
class Tests(unittest.TestCase):
def test_print_warning(self):
print("msg1: stdout")
support.print_warning("msg2: print_warning")
# Fail with ENV CHANGED to see print_warning() log
support.environment_altered = True
""")
testname = self.create_test(code=code)
# Expect an output like:
#
# test_threading_excepthook (test.test_x.Tests) ... msg1: stdout
# Warning -- msg2: print_warning
# ok
regex = (r"test_print_warning.*msg1: stdout\n"
r"Warning -- msg2: print_warning\n"
r"ok\n")
for option in ("-v", "-W"):
with self.subTest(option=option):
cmd = ["--fail-env-changed", option, testname]
output = self.run_tests(*cmd, exitcode=EXITCODE_ENV_CHANGED)
self.check_executed_tests(output, [testname],
env_changed=[testname],
fail_env_changed=True,
stats=1)
self.assertRegex(output, regex)
def test_unicode_guard_env(self):
guard = os.environ.get(setup.UNICODE_GUARD_ENV)
self.assertIsNotNone(guard, f"{setup.UNICODE_GUARD_ENV} not set")
if guard.isascii():
# Skip to signify that the env var value was changed by the user;
# possibly to something ASCII to work around Unicode issues.
self.skipTest("Modified guard")
def test_cleanup(self):
dirname = os.path.join(self.tmptestdir, "test_python_123")
os.mkdir(dirname)
filename = os.path.join(self.tmptestdir, "test_python_456")
open(filename, "wb").close()
names = [dirname, filename]
cmdargs = ['-m', 'test',
'--tempdir=%s' % self.tmptestdir,
'--cleanup']
self.run_python(cmdargs)
for name in names:
self.assertFalse(os.path.exists(name), name)
@unittest.skipIf(support.is_wasi,
'checking temp files is not implemented on WASI')
def test_leak_tmp_file(self):
code = textwrap.dedent(r"""
import os.path
import tempfile
import unittest
class FileTests(unittest.TestCase):
def test_leak_tmp_file(self):
filename = os.path.join(tempfile.gettempdir(), 'mytmpfile')
with open(filename, "wb") as fp:
fp.write(b'content')
""")
testnames = [self.create_test(code=code) for _ in range(3)]
output = self.run_tests("--fail-env-changed", "-v", "-j2", *testnames,
exitcode=EXITCODE_ENV_CHANGED)
self.check_executed_tests(output, testnames,
env_changed=testnames,
fail_env_changed=True,
randomize=True,
stats=len(testnames))
for testname in testnames:
self.assertIn(f"Warning -- {testname} leaked temporary "
f"files (1): mytmpfile",
output)
def test_mp_decode_error(self):
# gh-101634: If a worker stdout cannot be decoded, report a failed test
# and a non-zero exit code.
if sys.platform == 'win32':
encoding = locale.getencoding()
else:
encoding = sys.stdout.encoding
if encoding is None:
encoding = sys.__stdout__.encoding
if encoding is None:
self.skipTest(f"cannot get regrtest worker encoding")
nonascii = b"byte:\xa0\xa9\xff\n"
try:
nonascii.decode(encoding)
except UnicodeDecodeError:
pass
else:
self.skipTest(f"{encoding} can decode non-ASCII bytes {nonascii!a}")
code = textwrap.dedent(fr"""
import sys
# bytes which cannot be decoded from UTF-8
nonascii = {nonascii!a}
sys.stdout.buffer.write(nonascii)
sys.stdout.buffer.flush()
""")
testname = self.create_test(code=code)
output = self.run_tests("--fail-env-changed", "-v", "-j1", testname,
exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, [testname],
failed=[testname],
randomize=True,
stats=0)
def test_doctest(self):
code = textwrap.dedent(fr'''
import doctest
import sys
from test import support
def my_function():
"""
Pass:
>>> 1 + 1
2
Failure:
>>> 2 + 3
23
>>> 1 + 1
11
Skipped test (ignored):
>>> id(1.0) # doctest: +SKIP
7948648
"""
def load_tests(loader, tests, pattern):
tests.addTest(doctest.DocTestSuite())
return tests
''')
testname = self.create_test(code=code)
output = self.run_tests("--fail-env-changed", "-v", "-j1", testname,
exitcode=EXITCODE_BAD_TEST)
self.check_executed_tests(output, [testname],
failed=[testname],
randomize=True,
stats=TestStats(1, 1, 0))
class TestUtils(unittest.TestCase):
def test_format_duration(self):
self.assertEqual(utils.format_duration(0),
'0 ms')
self.assertEqual(utils.format_duration(1e-9),
'1 ms')
self.assertEqual(utils.format_duration(10e-3),
'10 ms')
self.assertEqual(utils.format_duration(1.5),
'1.5 sec')
self.assertEqual(utils.format_duration(1),
'1.0 sec')
self.assertEqual(utils.format_duration(2 * 60),
'2 min')
self.assertEqual(utils.format_duration(2 * 60 + 1),
'2 min 1 sec')
self.assertEqual(utils.format_duration(3 * 3600),
'3 hour')
self.assertEqual(utils.format_duration(3 * 3600 + 2 * 60 + 1),
'3 hour 2 min')
self.assertEqual(utils.format_duration(3 * 3600 + 1),
'3 hour 1 sec')
def test_normalize_test_name(self):
normalize = normalize_test_name
self.assertEqual(normalize('test_access (test.test_os.FileTests.test_access)'),
'test_access')
self.assertEqual(normalize('setUpClass (test.test_os.ChownFileTests)', is_error=True),
'ChownFileTests')
self.assertEqual(normalize('test_success (test.test_bug.ExampleTests.test_success)', is_error=True),
'test_success')
self.assertIsNone(normalize('setUpModule (test.test_x)', is_error=True))
self.assertIsNone(normalize('tearDownModule (test.test_module)', is_error=True))
if __name__ == '__main__':
unittest.main()