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test_regrtest.py
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2681 lines (2246 loc) · 99.8 KB
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"""
Tests of regrtest.py.
Note: test_regrtest cannot be run twice in parallel.
"""
import _colorize
import contextlib
import dataclasses
import glob
import io
import locale
import os.path
import platform
import random
import re
import shlex
import signal
import subprocess
import sys
import sysconfig
import tempfile
import textwrap
import unittest
import unittest.mock
from xml.etree import ElementTree
from test import support
from test.support import import_helper
from test.support import os_helper
from test.libregrtest import cmdline
from test.libregrtest import main
from test.libregrtest import setup
from test.libregrtest import utils
from test.libregrtest.filter import get_match_tests, set_match_tests, match_test
from test.libregrtest.result import TestStats
from test.libregrtest.utils 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} )?'
RESULT_REGEX = (
'passed',
'failed',
'skipped',
'interrupted',
'env changed',
'timed out',
'ran no tests',
'worker non-zero exit code',
)
RESULT_REGEX = fr'(?:{"|".join(RESULT_REGEX)})'
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().
"""
@staticmethod
def parse_args(args):
return cmdline._parse_args(args)
def checkError(self, args, msg):
with support.captured_stderr() as err, self.assertRaises(SystemExit):
self.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):
self.parse_args([opt])
self.assertIn('Run Python regression tests.', out.getvalue())
def test_timeout(self):
ns = self.parse_args(['--timeout', '4.2'])
self.assertEqual(ns.timeout, 4.2)
# negative, zero and empty string are treated as "no timeout"
for value in ('-1', '0', ''):
with self.subTest(value=value):
ns = self.parse_args([f'--timeout={value}'])
self.assertEqual(ns.timeout, None)
self.checkError(['--timeout'], 'expected one argument')
self.checkError(['--timeout', 'foo'], 'invalid timeout value:')
def test_wait(self):
ns = self.parse_args(['--wait'])
self.assertTrue(ns.wait)
def test_start(self):
for opt in '-S', '--start':
with self.subTest(opt=opt):
ns = self.parse_args([opt, 'foo'])
self.assertEqual(ns.start, 'foo')
self.checkError([opt], 'expected one argument')
def test_verbose(self):
ns = self.parse_args(['-v'])
self.assertEqual(ns.verbose, 1)
ns = self.parse_args(['-vvv'])
self.assertEqual(ns.verbose, 3)
ns = self.parse_args(['--verbose'])
self.assertEqual(ns.verbose, 1)
ns = self.parse_args(['--verbose'] * 3)
self.assertEqual(ns.verbose, 3)
ns = self.parse_args([])
self.assertEqual(ns.verbose, 0)
def test_rerun(self):
for opt in '-w', '--rerun', '--verbose2':
with self.subTest(opt=opt):
ns = self.parse_args([opt])
self.assertTrue(ns.rerun)
def test_verbose3(self):
for opt in '-W', '--verbose3':
with self.subTest(opt=opt):
ns = self.parse_args([opt])
self.assertTrue(ns.verbose3)
def test_quiet(self):
for opt in '-q', '--quiet':
with self.subTest(opt=opt):
ns = self.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 = self.parse_args([opt])
self.assertTrue(ns.print_slow)
def test_header(self):
ns = self.parse_args(['--header'])
self.assertTrue(ns.header)
ns = self.parse_args(['--verbose'])
self.assertTrue(ns.header)
def test_randomize(self):
for opt in ('-r', '--randomize'):
with self.subTest(opt=opt):
ns = self.parse_args([opt])
self.assertTrue(ns.randomize)
with os_helper.EnvironmentVarGuard() as env:
# with SOURCE_DATE_EPOCH
env['SOURCE_DATE_EPOCH'] = '1697839080'
ns = self.parse_args(['--randomize'])
regrtest = main.Regrtest(ns)
self.assertFalse(regrtest.randomize)
self.assertIsInstance(regrtest.random_seed, str)
self.assertEqual(regrtest.random_seed, '1697839080')
# without SOURCE_DATE_EPOCH
del env['SOURCE_DATE_EPOCH']
ns = self.parse_args(['--randomize'])
regrtest = main.Regrtest(ns)
self.assertTrue(regrtest.randomize)
self.assertIsInstance(regrtest.random_seed, int)
def test_no_randomize(self):
ns = self.parse_args([])
self.assertIs(ns.randomize, False)
ns = self.parse_args(["--randomize"])
self.assertIs(ns.randomize, True)
ns = self.parse_args(["--no-randomize"])
self.assertIs(ns.randomize, False)
ns = self.parse_args(["--randomize", "--no-randomize"])
self.assertIs(ns.randomize, False)
ns = self.parse_args(["--no-randomize", "--randomize"])
self.assertIs(ns.randomize, False)
def test_randseed(self):
ns = self.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')
ns = self.parse_args(['--randseed', '12345', '--no-randomize'])
self.assertEqual(ns.random_seed, 12345)
self.assertFalse(ns.randomize)
def test_fromfile(self):
for opt in '-f', '--fromfile':
with self.subTest(opt=opt):
ns = self.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 = self.parse_args([opt])
self.assertTrue(ns.exclude)
def test_single(self):
for opt in '-s', '--single':
with self.subTest(opt=opt):
ns = self.parse_args([opt])
self.assertTrue(ns.single)
self.checkError([opt, '-f', 'foo'], "don't go together")
def test_match(self):
for opt in '-m', '--match':
with self.subTest(opt=opt):
ns = self.parse_args([opt, 'pattern'])
self.assertEqual(ns.match_tests, [('pattern', True)])
self.checkError([opt], 'expected one argument')
for opt in '-i', '--ignore':
with self.subTest(opt=opt):
ns = self.parse_args([opt, 'pattern'])
self.assertEqual(ns.match_tests, [('pattern', False)])
self.checkError([opt], 'expected one argument')
ns = self.parse_args(['-m', 'pattern1', '-m', 'pattern2'])
self.assertEqual(ns.match_tests, [('pattern1', True), ('pattern2', True)])
ns = self.parse_args(['-m', 'pattern1', '-i', 'pattern2'])
self.assertEqual(ns.match_tests, [('pattern1', True), ('pattern2', False)])
ns = self.parse_args(['-i', 'pattern1', '-m', 'pattern2'])
self.assertEqual(ns.match_tests, [('pattern1', False), ('pattern2', True)])
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 = self.parse_args(['-m', 'match', '--matchfile', filename])
self.assertEqual(ns.match_tests,
[('match', True), ('matchfile1', True), ('matchfile2', True)])
ns = self.parse_args(['-i', 'match', '--ignorefile', filename])
self.assertEqual(ns.match_tests,
[('match', False), ('matchfile1', False), ('matchfile2', False)])
def test_failfast(self):
for opt in '-G', '--failfast':
with self.subTest(opt=opt):
ns = self.parse_args([opt, '-v'])
self.assertTrue(ns.failfast)
ns = self.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 = self.parse_args([opt, 'gui,network'])
self.assertEqual(ns.use_resources, {'gui': None, 'network': None})
ns = self.parse_args([opt, 'gui', opt, 'network'])
self.assertEqual(ns.use_resources, {'gui': None, 'network': None})
ns = self.parse_args([opt, 'gui,none,network'])
self.assertEqual(ns.use_resources, {'network': None})
ns = self.parse_args([opt, 'gui', opt, 'none', opt, 'network'])
self.assertEqual(ns.use_resources, {'network': None})
expected = dict.fromkeys(cmdline.ALL_RESOURCES)
del expected['gui']
ns = self.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"
expected = dict.fromkeys(cmdline.ALL_RESOURCES)
expected['tzdata'] = None
ns = self.parse_args([opt, 'all,tzdata'])
self.assertEqual(ns.use_resources, expected)
ns = self.parse_args([opt, 'all', opt, 'tzdata'])
self.assertEqual(ns.use_resources, expected)
# test another resource which is not part of "all"
ns = self.parse_args([opt, 'extralargefile'])
self.assertEqual(ns.use_resources, {'extralargefile': None})
# test resource with value
ns = self.parse_args([opt, 'xpickle=2.7'])
self.assertEqual(ns.use_resources, {'xpickle': '2.7'})
ns = self.parse_args([opt, 'xpickle=2.7,xpickle=3.3'])
self.assertEqual(ns.use_resources, {'xpickle': '3.3'})
ns = self.parse_args([opt, 'xpickle=2.7,none'])
self.assertEqual(ns.use_resources, {})
ns = self.parse_args([opt, 'xpickle=2.7,-xpickle'])
self.assertEqual(ns.use_resources, {})
expected = dict.fromkeys(cmdline.ALL_RESOURCES)
expected['xpickle'] = '2.7'
ns = self.parse_args([opt, 'all,xpickle=2.7'])
self.assertEqual(ns.use_resources, expected)
ns = self.parse_args([opt, 'all', opt, 'xpickle=2.7'])
self.assertEqual(ns.use_resources, expected)
# test invalid resources with value
self.checkError([opt, 'all=0'], 'invalid resource: all=0')
self.checkError([opt, 'none=0'], 'invalid resource: none=0')
self.checkError([opt, 'all,-gui=0'], 'invalid resource: -gui=0')
def test_memlimit(self):
for opt in '-M', '--memlimit':
with self.subTest(opt=opt):
ns = self.parse_args([opt, '4G'])
self.assertEqual(ns.memlimit, '4G')
self.checkError([opt], 'expected one argument')
def test_testdir(self):
ns = self.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 = self.parse_args([opt])
self.assertTrue(ns.runleaks)
def test_huntrleaks(self):
for opt in '-R', '--huntrleaks':
with self.subTest(opt=opt):
ns = self.parse_args([opt, ':'])
self.assertEqual(ns.huntrleaks, (5, 4, 'reflog.txt'))
ns = self.parse_args([opt, '6:'])
self.assertEqual(ns.huntrleaks, (6, 4, 'reflog.txt'))
ns = self.parse_args([opt, ':3'])
self.assertEqual(ns.huntrleaks, (5, 3, 'reflog.txt'))
ns = self.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 = self.parse_args([opt, '2'])
self.assertEqual(ns.use_mp, 2)
self.checkError([opt], 'expected one argument')
self.checkError([opt, 'foo'], 'invalid int value')
def test_coverage_sequential(self):
for opt in '-T', '--coverage':
with self.subTest(opt=opt):
with support.captured_stderr() as stderr:
ns = self.parse_args([opt])
self.assertTrue(ns.trace)
self.assertIn(
"collecting coverage without -j is imprecise",
stderr.getvalue(),
)
@unittest.skipUnless(support.Py_DEBUG, 'need a debug build')
def test_coverage_mp(self):
for opt in '-T', '--coverage':
with self.subTest(opt=opt):
ns = self.parse_args([opt, '-j1'])
self.assertTrue(ns.trace)
def test_coverdir(self):
for opt in '-D', '--coverdir':
with self.subTest(opt=opt):
ns = self.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 = self.parse_args([opt])
self.assertIsNone(ns.coverdir)
def test_threshold(self):
for opt in '-t', '--threshold':
with self.subTest(opt=opt):
ns = self.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 = self.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 = self.parse_args([opt])
self.assertTrue(ns.forever)
def test_unrecognized_argument(self):
self.checkError(['--xxx'], 'usage:')
def test_long_option__partial(self):
ns = self.parse_args(['--qui'])
self.assertTrue(ns.quiet)
self.assertEqual(ns.verbose, 0)
def test_two_options(self):
ns = self.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 = self.parse_args(['--start', ''])
self.assertEqual(ns.start, '')
def test_arg(self):
ns = self.parse_args(['foo'])
self.assertEqual(ns.args, ['foo'])
def test_option_and_arg(self):
ns = self.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 = self.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')
def create_regrtest(self, args):
ns = cmdline._parse_args(args)
# Check Regrtest attributes which are more reliable than Namespace
# which has an unclear API
with os_helper.EnvironmentVarGuard() as env:
# Ignore SOURCE_DATE_EPOCH env var if it's set
del env['SOURCE_DATE_EPOCH']
regrtest = main.Regrtest(ns)
return regrtest
def check_ci_mode(self, args, use_resources,
*, rerun=True, randomize=True, output_on_failure=True):
regrtest = self.create_regrtest(args)
self.assertEqual(regrtest.num_workers, -1)
self.assertEqual(regrtest.want_rerun, rerun)
self.assertEqual(regrtest.fail_rerun, False)
self.assertEqual(regrtest.randomize, randomize)
self.assertIsInstance(regrtest.random_seed, int)
self.assertTrue(regrtest.fail_env_changed)
self.assertTrue(regrtest.print_slowest)
self.assertEqual(regrtest.output_on_failure, output_on_failure)
self.assertEqual(regrtest.use_resources, use_resources)
return regrtest
def test_fast_ci(self):
args = ['--fast-ci']
use_resources = dict.fromkeys(cmdline.ALL_RESOURCES)
del use_resources['cpu']
regrtest = self.check_ci_mode(args, use_resources)
self.assertEqual(regrtest.timeout, 10 * 60)
def test_fast_ci_python_cmd(self):
args = ['--fast-ci', '--python', 'python -X dev']
use_resources = dict.fromkeys(cmdline.ALL_RESOURCES)
del use_resources['cpu']
regrtest = self.check_ci_mode(args, use_resources, rerun=False)
self.assertEqual(regrtest.timeout, 10 * 60)
self.assertEqual(regrtest.python_cmd, ('python', '-X', 'dev'))
def test_fast_ci_resource(self):
# it should be possible to override resources individually
args = ['--fast-ci', '-u-network']
use_resources = dict.fromkeys(cmdline.ALL_RESOURCES)
del use_resources['cpu']
del use_resources['network']
self.check_ci_mode(args, use_resources)
def test_fast_ci_verbose(self):
args = ['--fast-ci', '--verbose']
use_resources = dict.fromkeys(cmdline.ALL_RESOURCES)
del use_resources['cpu']
regrtest = self.check_ci_mode(args, use_resources,
output_on_failure=False)
self.assertEqual(regrtest.verbose, True)
def test_slow_ci(self):
args = ['--slow-ci']
use_resources = dict.fromkeys(cmdline.ALL_RESOURCES)
regrtest = self.check_ci_mode(args, use_resources)
self.assertEqual(regrtest.timeout, 20 * 60)
def test_ci_no_randomize(self):
use_resources = dict.fromkeys(cmdline.ALL_RESOURCES)
self.check_ci_mode(
["--slow-ci", "--no-randomize"], use_resources, randomize=False
)
del use_resources['cpu']
self.check_ci_mode(
["--fast-ci", "--no-randomize"], use_resources, randomize=False
)
def test_dont_add_python_opts(self):
args = ['--dont-add-python-opts']
ns = cmdline._parse_args(args)
self.assertFalse(ns._add_python_opts)
def test_bisect(self):
args = ['--bisect']
regrtest = self.create_regrtest(args)
self.assertTrue(regrtest.want_bisect)
def test_verbose3_huntrleaks(self):
args = ['-R', '3:10', '--verbose3']
with support.captured_stderr():
regrtest = self.create_regrtest(args)
self.assertIsNotNone(regrtest.hunt_refleak)
self.assertEqual(regrtest.hunt_refleak.warmups, 3)
self.assertEqual(regrtest.hunt_refleak.runs, 10)
self.assertFalse(regrtest.output_on_failure)
def test_single_process(self):
args = ['-j2', '--single-process']
with support.captured_stderr():
regrtest = self.create_regrtest(args)
self.assertEqual(regrtest.num_workers, 0)
self.assertTrue(regrtest.single_process)
args = ['--fast-ci', '--single-process']
with support.captured_stderr():
regrtest = self.create_regrtest(args)
self.assertEqual(regrtest.num_workers, 0)
self.assertTrue(regrtest.single_process)
def test_pythoninfo(self):
ns = self.parse_args([])
self.assertFalse(ns.pythoninfo)
ns = self.parse_args(['--pythoninfo'])
self.assertTrue(ns.pythoninfo)
@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, pattern, full=False, regex=True):
if not regex:
pattern = re.escape(pattern)
if full:
pattern += '\n'
regex = re.compile(r'^' + pattern, re.MULTILINE)
self.assertRegex(output, regex)
def parse_executed_tests(self, output):
regex = (fr'^{LOG_PREFIX}\[ *[0-9]+(?:/ *[0-9]+)*\] '
fr'({self.TESTNAME_REGEX}) {RESULT_REGEX}')
parser = re.finditer(regex, output, re.MULTILINE)
return list(match.group(1) for match in parser)
def check_executed_tests(self, output, tests, *, stats,
skipped=(), failed=(),
env_changed=(), omitted=(),
rerun=None, run_no_tests=(),
resource_denied=(),
randomize=False, parallel=False, interrupted=False,
fail_env_changed=False,
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)
if parallel:
randomize = True
rerun_failed = []
if rerun is not None and not env_changed:
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(r'%s test%s altered the execution environment '
r'\(env changed\)',
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 + r"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 = f'{state} then {new_state}'
self.check_line(output, f'Result: {state}', full=True)
def parse_random_seed(self, output: str) -> str:
match = self.regex_search(r'Using random seed: (.*)', output)
return match.group(1)
def run_command(self, args, input=None, exitcode=0, **kw):
if not input:
input = ''
if 'stderr' not in kw:
kw['stderr'] = subprocess.STDOUT
env = kw.pop('env', None)
if env is None:
env = dict(os.environ)
env.pop('SOURCE_DATE_EPOCH', None)
proc = subprocess.run(args,
text=True,
input=input,
stdout=subprocess.PIPE,
env=env,
**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, isolated=True, **kw):
extraargs = []
if 'uops' in sys._xoptions:
# Pass -X uops along
extraargs.extend(['-X', 'uops'])
cmd = [sys.executable, *extraargs, '-X', 'faulthandler']
if isolated:
cmd.append('-I')
cmd.extend(args)
proc = self.run_command(cmd, **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())}')
@support.force_not_colorized_test_class
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):
randseed = self.parse_random_seed(output)
self.assertTrue(randseed.isdigit(), randseed)
self.check_executed_tests(output, self.tests,
randomize=True, stats=len(self.tests))
def run_tests(self, args, env=None, isolated=True):
output = self.run_python(args, env=env, isolated=isolated)
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)
def run_batch(self, *args):
proc = self.run_command(args,
# gh-133711: cmd.exe uses the OEM code page
# to display the non-ASCII current directory
errors="backslashreplace")
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
if sysconfig.get_config_var("Py_GIL_DISABLED"):
test_args.append('--disable-gil')
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
if sysconfig.get_config_var("Py_GIL_DISABLED"):
rt_args.append('--disable-gil')
self.run_batch(script, *rt_args, *self.regrtest_args, *self.tests)