mirror of https://github.com/python/cpython
715 lines
21 KiB
Python
715 lines
21 KiB
Python
import contextlib
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import faulthandler
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import locale
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import math
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import os.path
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import platform
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import random
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import shlex
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import signal
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import subprocess
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import sys
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import sysconfig
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import tempfile
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import textwrap
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from collections.abc import Callable, Iterable
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from test import support
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from test.support import os_helper
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from test.support import threading_helper
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# All temporary files and temporary directories created by libregrtest should
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# use TMP_PREFIX so cleanup_temp_dir() can remove them all.
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TMP_PREFIX = 'test_python_'
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WORK_DIR_PREFIX = TMP_PREFIX
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WORKER_WORK_DIR_PREFIX = WORK_DIR_PREFIX + 'worker_'
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# bpo-38203: Maximum delay in seconds to exit Python (call Py_Finalize()).
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# Used to protect against threading._shutdown() hang.
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# Must be smaller than buildbot "1200 seconds without output" limit.
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EXIT_TIMEOUT = 120.0
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ALL_RESOURCES = ('audio', 'curses', 'largefile', 'network',
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'decimal', 'cpu', 'subprocess', 'urlfetch', 'gui', 'walltime')
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# Other resources excluded from --use=all:
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#
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# - extralagefile (ex: test_zipfile64): really too slow to be enabled
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# "by default"
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# - tzdata: while needed to validate fully test_datetime, it makes
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# test_datetime too slow (15-20 min on some buildbots) and so is disabled by
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# default (see bpo-30822).
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RESOURCE_NAMES = ALL_RESOURCES + ('extralargefile', 'tzdata')
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# Types for types hints
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StrPath = str
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TestName = str
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StrJSON = str
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TestTuple = tuple[TestName, ...]
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TestList = list[TestName]
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# --match and --ignore options: list of patterns
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# ('*' joker character can be used)
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TestFilter = list[tuple[TestName, bool]]
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FilterTuple = tuple[TestName, ...]
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FilterDict = dict[TestName, FilterTuple]
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def format_duration(seconds):
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ms = math.ceil(seconds * 1e3)
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seconds, ms = divmod(ms, 1000)
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minutes, seconds = divmod(seconds, 60)
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hours, minutes = divmod(minutes, 60)
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parts = []
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if hours:
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parts.append('%s hour' % hours)
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if minutes:
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parts.append('%s min' % minutes)
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if seconds:
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if parts:
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# 2 min 1 sec
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parts.append('%s sec' % seconds)
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else:
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# 1.0 sec
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parts.append('%.1f sec' % (seconds + ms / 1000))
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if not parts:
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return '%s ms' % ms
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parts = parts[:2]
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return ' '.join(parts)
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def strip_py_suffix(names: list[str] | None) -> None:
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if not names:
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return
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for idx, name in enumerate(names):
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basename, ext = os.path.splitext(name)
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if ext == '.py':
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names[idx] = basename
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def plural(n, singular, plural=None):
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if n == 1:
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return singular
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elif plural is not None:
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return plural
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else:
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return singular + 's'
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def count(n, word):
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if n == 1:
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return f"{n} {word}"
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else:
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return f"{n} {word}s"
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def printlist(x, width=70, indent=4, file=None):
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"""Print the elements of iterable x to stdout.
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Optional arg width (default 70) is the maximum line length.
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Optional arg indent (default 4) is the number of blanks with which to
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begin each line.
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"""
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blanks = ' ' * indent
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# Print the sorted list: 'x' may be a '--random' list or a set()
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print(textwrap.fill(' '.join(str(elt) for elt in sorted(x)), width,
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initial_indent=blanks, subsequent_indent=blanks),
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file=file)
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def print_warning(msg):
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support.print_warning(msg)
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orig_unraisablehook = None
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def regrtest_unraisable_hook(unraisable):
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global orig_unraisablehook
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support.environment_altered = True
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support.print_warning("Unraisable exception")
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old_stderr = sys.stderr
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try:
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support.flush_std_streams()
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sys.stderr = support.print_warning.orig_stderr
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orig_unraisablehook(unraisable)
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sys.stderr.flush()
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finally:
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sys.stderr = old_stderr
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def setup_unraisable_hook():
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global orig_unraisablehook
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orig_unraisablehook = sys.unraisablehook
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sys.unraisablehook = regrtest_unraisable_hook
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orig_threading_excepthook = None
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def regrtest_threading_excepthook(args):
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global orig_threading_excepthook
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support.environment_altered = True
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support.print_warning(f"Uncaught thread exception: {args.exc_type.__name__}")
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old_stderr = sys.stderr
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try:
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support.flush_std_streams()
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sys.stderr = support.print_warning.orig_stderr
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orig_threading_excepthook(args)
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sys.stderr.flush()
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finally:
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sys.stderr = old_stderr
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def setup_threading_excepthook():
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global orig_threading_excepthook
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import threading
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orig_threading_excepthook = threading.excepthook
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threading.excepthook = regrtest_threading_excepthook
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def clear_caches():
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# Clear the warnings registry, so they can be displayed again
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for mod in sys.modules.values():
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if hasattr(mod, '__warningregistry__'):
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del mod.__warningregistry__
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# Flush standard output, so that buffered data is sent to the OS and
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# associated Python objects are reclaimed.
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for stream in (sys.stdout, sys.stderr, sys.__stdout__, sys.__stderr__):
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if stream is not None:
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stream.flush()
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try:
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re = sys.modules['re']
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except KeyError:
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pass
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else:
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re.purge()
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try:
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_strptime = sys.modules['_strptime']
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except KeyError:
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pass
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else:
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_strptime._regex_cache.clear()
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try:
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urllib_parse = sys.modules['urllib.parse']
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except KeyError:
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pass
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else:
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urllib_parse.clear_cache()
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try:
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urllib_request = sys.modules['urllib.request']
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except KeyError:
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pass
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else:
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urllib_request.urlcleanup()
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try:
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linecache = sys.modules['linecache']
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except KeyError:
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pass
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else:
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linecache.clearcache()
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try:
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mimetypes = sys.modules['mimetypes']
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except KeyError:
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pass
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else:
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mimetypes._default_mime_types()
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try:
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filecmp = sys.modules['filecmp']
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except KeyError:
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pass
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else:
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filecmp._cache.clear()
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try:
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struct = sys.modules['struct']
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except KeyError:
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pass
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else:
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struct._clearcache()
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try:
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doctest = sys.modules['doctest']
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except KeyError:
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pass
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else:
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doctest.master = None
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try:
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ctypes = sys.modules['ctypes']
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except KeyError:
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pass
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else:
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ctypes._reset_cache()
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try:
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typing = sys.modules['typing']
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except KeyError:
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pass
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else:
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for f in typing._cleanups:
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f()
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try:
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fractions = sys.modules['fractions']
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except KeyError:
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pass
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else:
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fractions._hash_algorithm.cache_clear()
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try:
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inspect = sys.modules['inspect']
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except KeyError:
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pass
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else:
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inspect._shadowed_dict_from_weakref_mro_tuple.cache_clear()
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inspect._filesbymodname.clear()
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inspect.modulesbyfile.clear()
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try:
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importlib_metadata = sys.modules['importlib.metadata']
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except KeyError:
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pass
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else:
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importlib_metadata.FastPath.__new__.cache_clear()
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def get_build_info():
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# Get most important configure and build options as a list of strings.
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# Example: ['debug', 'ASAN+MSAN'] or ['release', 'LTO+PGO'].
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config_args = sysconfig.get_config_var('CONFIG_ARGS') or ''
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cflags = sysconfig.get_config_var('PY_CFLAGS') or ''
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cflags_nodist = sysconfig.get_config_var('PY_CFLAGS_NODIST') or ''
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ldflags_nodist = sysconfig.get_config_var('PY_LDFLAGS_NODIST') or ''
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build = []
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# --disable-gil
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if sysconfig.get_config_var('Py_GIL_DISABLED'):
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build.append("free_threading")
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if hasattr(sys, 'gettotalrefcount'):
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# --with-pydebug
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build.append('debug')
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if '-DNDEBUG' in (cflags + cflags_nodist):
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build.append('without_assert')
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else:
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build.append('release')
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if '--with-assertions' in config_args:
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build.append('with_assert')
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elif '-DNDEBUG' not in (cflags + cflags_nodist):
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build.append('with_assert')
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# --enable-framework=name
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framework = sysconfig.get_config_var('PYTHONFRAMEWORK')
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if framework:
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build.append(f'framework={framework}')
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# --enable-shared
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shared = int(sysconfig.get_config_var('PY_ENABLE_SHARED') or '0')
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if shared:
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build.append('shared')
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# --with-lto
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optimizations = []
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if '-flto=thin' in ldflags_nodist:
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optimizations.append('ThinLTO')
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elif '-flto' in ldflags_nodist:
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optimizations.append('LTO')
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if support.check_cflags_pgo():
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# PGO (--enable-optimizations)
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optimizations.append('PGO')
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if optimizations:
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build.append('+'.join(optimizations))
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# --with-address-sanitizer
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sanitizers = []
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if support.check_sanitizer(address=True):
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sanitizers.append("ASAN")
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# --with-memory-sanitizer
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if support.check_sanitizer(memory=True):
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sanitizers.append("MSAN")
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# --with-undefined-behavior-sanitizer
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if support.check_sanitizer(ub=True):
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sanitizers.append("UBSAN")
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# --with-thread-sanitizer
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if support.check_sanitizer(thread=True):
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sanitizers.append("TSAN")
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if sanitizers:
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build.append('+'.join(sanitizers))
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# --with-trace-refs
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if hasattr(sys, 'getobjects'):
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build.append("TraceRefs")
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# --enable-pystats
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if hasattr(sys, '_stats_on'):
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build.append("pystats")
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# --with-valgrind
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if sysconfig.get_config_var('WITH_VALGRIND'):
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build.append("valgrind")
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# --with-dtrace
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if sysconfig.get_config_var('WITH_DTRACE'):
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build.append("dtrace")
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return build
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def get_temp_dir(tmp_dir: StrPath | None = None) -> StrPath:
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if tmp_dir:
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tmp_dir = os.path.expanduser(tmp_dir)
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else:
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# When tests are run from the Python build directory, it is best practice
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# to keep the test files in a subfolder. This eases the cleanup of leftover
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# files using the "make distclean" command.
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if sysconfig.is_python_build():
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if not support.is_wasi:
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tmp_dir = sysconfig.get_config_var('abs_builddir')
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if tmp_dir is None:
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tmp_dir = sysconfig.get_config_var('abs_srcdir')
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if not tmp_dir:
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# gh-74470: On Windows, only srcdir is available. Using
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# abs_builddir mostly matters on UNIX when building
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# Python out of the source tree, especially when the
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# source tree is read only.
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tmp_dir = sysconfig.get_config_var('srcdir')
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if not tmp_dir:
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raise RuntimeError(
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"Could not determine the correct value for tmp_dir"
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)
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tmp_dir = os.path.join(tmp_dir, 'build')
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else:
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# WASI platform
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tmp_dir = sysconfig.get_config_var('projectbase')
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if not tmp_dir:
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raise RuntimeError(
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"sysconfig.get_config_var('projectbase') "
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f"unexpectedly returned {tmp_dir!r} on WASI"
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)
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tmp_dir = os.path.join(tmp_dir, 'build')
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# When get_temp_dir() is called in a worker process,
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# get_temp_dir() path is different than in the parent process
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# which is not a WASI process. So the parent does not create
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# the same "tmp_dir" than the test worker process.
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os.makedirs(tmp_dir, exist_ok=True)
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else:
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tmp_dir = tempfile.gettempdir()
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return os.path.abspath(tmp_dir)
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def fix_umask():
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if support.is_emscripten:
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# Emscripten has default umask 0o777, which breaks some tests.
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# see https://github.com/emscripten-core/emscripten/issues/17269
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old_mask = os.umask(0)
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if old_mask == 0o777:
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os.umask(0o027)
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else:
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os.umask(old_mask)
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def get_work_dir(parent_dir: StrPath, worker: bool = False) -> StrPath:
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# Define a writable temp dir that will be used as cwd while running
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# the tests. The name of the dir includes the pid to allow parallel
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# testing (see the -j option).
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# Emscripten and WASI have stubbed getpid(), Emscripten has only
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# millisecond clock resolution. Use randint() instead.
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if support.is_emscripten or support.is_wasi:
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nounce = random.randint(0, 1_000_000)
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else:
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nounce = os.getpid()
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if worker:
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work_dir = WORK_DIR_PREFIX + str(nounce)
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else:
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work_dir = WORKER_WORK_DIR_PREFIX + str(nounce)
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work_dir += os_helper.FS_NONASCII
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work_dir = os.path.join(parent_dir, work_dir)
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return work_dir
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@contextlib.contextmanager
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def exit_timeout():
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try:
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yield
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except SystemExit as exc:
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# bpo-38203: Python can hang at exit in Py_Finalize(), especially
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# on threading._shutdown() call: put a timeout
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if threading_helper.can_start_thread:
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faulthandler.dump_traceback_later(EXIT_TIMEOUT, exit=True)
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sys.exit(exc.code)
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def remove_testfn(test_name: TestName, verbose: int) -> None:
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# Try to clean up os_helper.TESTFN if left behind.
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#
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# While tests shouldn't leave any files or directories behind, when a test
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# fails that can be tedious for it to arrange. The consequences can be
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# especially nasty on Windows, since if a test leaves a file open, it
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# cannot be deleted by name (while there's nothing we can do about that
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# here either, we can display the name of the offending test, which is a
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# real help).
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name = os_helper.TESTFN
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if not os.path.exists(name):
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return
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nuker: Callable[[str], None]
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if os.path.isdir(name):
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import shutil
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kind, nuker = "directory", shutil.rmtree
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elif os.path.isfile(name):
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kind, nuker = "file", os.unlink
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else:
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raise RuntimeError(f"os.path says {name!r} exists but is neither "
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f"directory nor file")
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if verbose:
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print_warning(f"{test_name} left behind {kind} {name!r}")
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support.environment_altered = True
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try:
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import stat
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# fix possible permissions problems that might prevent cleanup
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os.chmod(name, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
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nuker(name)
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except Exception as exc:
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print_warning(f"{test_name} left behind {kind} {name!r} "
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f"and it couldn't be removed: {exc}")
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def abs_module_name(test_name: TestName, test_dir: StrPath | None) -> TestName:
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if test_name.startswith('test.') or test_dir:
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return test_name
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else:
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# Import it from the test package
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return 'test.' + test_name
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# gh-90681: When rerunning tests, we might need to rerun the whole
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# class or module suite if some its life-cycle hooks fail.
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# Test level hooks are not affected.
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_TEST_LIFECYCLE_HOOKS = frozenset((
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'setUpClass', 'tearDownClass',
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'setUpModule', 'tearDownModule',
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))
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def normalize_test_name(test_full_name, *, is_error=False):
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short_name = test_full_name.split(" ")[0]
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if is_error and short_name in _TEST_LIFECYCLE_HOOKS:
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if test_full_name.startswith(('setUpModule (', 'tearDownModule (')):
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# if setUpModule() or tearDownModule() failed, don't filter
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# tests with the test file name, don't use use filters.
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return None
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# This means that we have a failure in a life-cycle hook,
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# we need to rerun the whole module or class suite.
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# Basically the error looks like this:
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# ERROR: setUpClass (test.test_reg_ex.RegTest)
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# or
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# ERROR: setUpModule (test.test_reg_ex)
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# So, we need to parse the class / module name.
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lpar = test_full_name.index('(')
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rpar = test_full_name.index(')')
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return test_full_name[lpar + 1: rpar].split('.')[-1]
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return short_name
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def adjust_rlimit_nofile():
|
|
"""
|
|
On macOS the default fd limit (RLIMIT_NOFILE) is sometimes too low (256)
|
|
for our test suite to succeed. Raise it to something more reasonable. 1024
|
|
is a common Linux default.
|
|
"""
|
|
try:
|
|
import resource
|
|
except ImportError:
|
|
return
|
|
|
|
fd_limit, max_fds = resource.getrlimit(resource.RLIMIT_NOFILE)
|
|
|
|
desired_fds = 1024
|
|
|
|
if fd_limit < desired_fds and fd_limit < max_fds:
|
|
new_fd_limit = min(desired_fds, max_fds)
|
|
try:
|
|
resource.setrlimit(resource.RLIMIT_NOFILE,
|
|
(new_fd_limit, max_fds))
|
|
print(f"Raised RLIMIT_NOFILE: {fd_limit} -> {new_fd_limit}")
|
|
except (ValueError, OSError) as err:
|
|
print_warning(f"Unable to raise RLIMIT_NOFILE from {fd_limit} to "
|
|
f"{new_fd_limit}: {err}.")
|
|
|
|
|
|
def get_host_runner():
|
|
if (hostrunner := os.environ.get("_PYTHON_HOSTRUNNER")) is None:
|
|
hostrunner = sysconfig.get_config_var("HOSTRUNNER")
|
|
return hostrunner
|
|
|
|
|
|
def is_cross_compiled():
|
|
return ('_PYTHON_HOST_PLATFORM' in os.environ)
|
|
|
|
|
|
def format_resources(use_resources: Iterable[str]):
|
|
use_resources = set(use_resources)
|
|
all_resources = set(ALL_RESOURCES)
|
|
|
|
# Express resources relative to "all"
|
|
relative_all = ['all']
|
|
for name in sorted(all_resources - use_resources):
|
|
relative_all.append(f'-{name}')
|
|
for name in sorted(use_resources - all_resources):
|
|
relative_all.append(f'{name}')
|
|
all_text = ','.join(relative_all)
|
|
all_text = f"resources: {all_text}"
|
|
|
|
# List of enabled resources
|
|
text = ','.join(sorted(use_resources))
|
|
text = f"resources ({len(use_resources)}): {text}"
|
|
|
|
# Pick the shortest string (prefer relative to all if lengths are equal)
|
|
if len(all_text) <= len(text):
|
|
return all_text
|
|
else:
|
|
return text
|
|
|
|
|
|
def display_header(use_resources: tuple[str, ...],
|
|
python_cmd: tuple[str, ...] | None):
|
|
# Print basic platform information
|
|
print("==", platform.python_implementation(), *sys.version.split())
|
|
print("==", platform.platform(aliased=True),
|
|
"%s-endian" % sys.byteorder)
|
|
print("== Python build:", ' '.join(get_build_info()))
|
|
print("== cwd:", os.getcwd())
|
|
|
|
cpu_count: object = os.cpu_count()
|
|
if cpu_count:
|
|
# The function is new in Python 3.13; mypy doesn't know about it yet:
|
|
process_cpu_count = os.process_cpu_count() # type: ignore[attr-defined]
|
|
if process_cpu_count and process_cpu_count != cpu_count:
|
|
cpu_count = f"{process_cpu_count} (process) / {cpu_count} (system)"
|
|
print("== CPU count:", cpu_count)
|
|
print("== encodings: locale=%s FS=%s"
|
|
% (locale.getencoding(), sys.getfilesystemencoding()))
|
|
|
|
if use_resources:
|
|
text = format_resources(use_resources)
|
|
print(f"== {text}")
|
|
else:
|
|
print("== resources: all test resources are disabled, "
|
|
"use -u option to unskip tests")
|
|
|
|
cross_compile = is_cross_compiled()
|
|
if cross_compile:
|
|
print("== cross compiled: Yes")
|
|
if python_cmd:
|
|
cmd = shlex.join(python_cmd)
|
|
print(f"== host python: {cmd}")
|
|
|
|
get_cmd = [*python_cmd, '-m', 'platform']
|
|
proc = subprocess.run(
|
|
get_cmd,
|
|
stdout=subprocess.PIPE,
|
|
text=True,
|
|
cwd=os_helper.SAVEDCWD)
|
|
stdout = proc.stdout.replace('\n', ' ').strip()
|
|
if stdout:
|
|
print(f"== host platform: {stdout}")
|
|
elif proc.returncode:
|
|
print(f"== host platform: <command failed with exit code {proc.returncode}>")
|
|
else:
|
|
hostrunner = get_host_runner()
|
|
if hostrunner:
|
|
print(f"== host runner: {hostrunner}")
|
|
|
|
# This makes it easier to remember what to set in your local
|
|
# environment when trying to reproduce a sanitizer failure.
|
|
asan = support.check_sanitizer(address=True)
|
|
msan = support.check_sanitizer(memory=True)
|
|
ubsan = support.check_sanitizer(ub=True)
|
|
tsan = support.check_sanitizer(thread=True)
|
|
sanitizers = []
|
|
if asan:
|
|
sanitizers.append("address")
|
|
if msan:
|
|
sanitizers.append("memory")
|
|
if ubsan:
|
|
sanitizers.append("undefined behavior")
|
|
if tsan:
|
|
sanitizers.append("thread")
|
|
if sanitizers:
|
|
print(f"== sanitizers: {', '.join(sanitizers)}")
|
|
for sanitizer, env_var in (
|
|
(asan, "ASAN_OPTIONS"),
|
|
(msan, "MSAN_OPTIONS"),
|
|
(ubsan, "UBSAN_OPTIONS"),
|
|
(tsan, "TSAN_OPTIONS"),
|
|
):
|
|
options= os.environ.get(env_var)
|
|
if sanitizer and options is not None:
|
|
print(f"== {env_var}={options!r}")
|
|
|
|
print(flush=True)
|
|
|
|
|
|
def cleanup_temp_dir(tmp_dir: StrPath):
|
|
import glob
|
|
|
|
path = os.path.join(glob.escape(tmp_dir), TMP_PREFIX + '*')
|
|
print("Cleanup %s directory" % tmp_dir)
|
|
for name in glob.glob(path):
|
|
if os.path.isdir(name):
|
|
print("Remove directory: %s" % name)
|
|
os_helper.rmtree(name)
|
|
else:
|
|
print("Remove file: %s" % name)
|
|
os_helper.unlink(name)
|
|
|
|
WINDOWS_STATUS = {
|
|
0xC0000005: "STATUS_ACCESS_VIOLATION",
|
|
0xC00000FD: "STATUS_STACK_OVERFLOW",
|
|
0xC000013A: "STATUS_CONTROL_C_EXIT",
|
|
}
|
|
|
|
def get_signal_name(exitcode):
|
|
if exitcode < 0:
|
|
signum = -exitcode
|
|
try:
|
|
return signal.Signals(signum).name
|
|
except ValueError:
|
|
pass
|
|
|
|
# Shell exit code (ex: WASI build)
|
|
if 128 < exitcode < 256:
|
|
signum = exitcode - 128
|
|
try:
|
|
return signal.Signals(signum).name
|
|
except ValueError:
|
|
pass
|
|
|
|
try:
|
|
return WINDOWS_STATUS[exitcode]
|
|
except KeyError:
|
|
pass
|
|
|
|
return None
|