mirror of https://github.com/python/cpython
133 lines
4.8 KiB
Python
133 lines
4.8 KiB
Python
import faulthandler
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import gc
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import os
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import random
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import signal
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import sys
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import unittest
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from test import support
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from test.support.os_helper import TESTFN_UNDECODABLE, FS_NONASCII
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from .filter import set_match_tests
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from .runtests import RunTests
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from .utils import (
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setup_unraisable_hook, setup_threading_excepthook, fix_umask,
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adjust_rlimit_nofile)
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UNICODE_GUARD_ENV = "PYTHONREGRTEST_UNICODE_GUARD"
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def setup_test_dir(testdir: str | None) -> None:
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if testdir:
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# Prepend test directory to sys.path, so runtest() will be able
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# to locate tests
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sys.path.insert(0, os.path.abspath(testdir))
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def setup_process():
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fix_umask()
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try:
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stderr_fd = sys.__stderr__.fileno()
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except (ValueError, AttributeError):
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# Catch ValueError to catch io.UnsupportedOperation on TextIOBase
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# and ValueError on a closed stream.
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#
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# Catch AttributeError for stderr being None.
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stderr_fd = None
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else:
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# Display the Python traceback on fatal errors (e.g. segfault)
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faulthandler.enable(all_threads=True, file=stderr_fd)
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# Display the Python traceback on SIGALRM or SIGUSR1 signal
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signals = []
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if hasattr(signal, 'SIGALRM'):
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signals.append(signal.SIGALRM)
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if hasattr(signal, 'SIGUSR1'):
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signals.append(signal.SIGUSR1)
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for signum in signals:
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faulthandler.register(signum, chain=True, file=stderr_fd)
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adjust_rlimit_nofile()
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support.record_original_stdout(sys.stdout)
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# Some times __path__ and __file__ are not absolute (e.g. while running from
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# Lib/) and, if we change the CWD to run the tests in a temporary dir, some
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# imports might fail. This affects only the modules imported before os.chdir().
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# These modules are searched first in sys.path[0] (so '' -- the CWD) and if
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# they are found in the CWD their __file__ and __path__ will be relative (this
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# happens before the chdir). All the modules imported after the chdir, are
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# not found in the CWD, and since the other paths in sys.path[1:] are absolute
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# (site.py absolutize them), the __file__ and __path__ will be absolute too.
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# Therefore it is necessary to absolutize manually the __file__ and __path__ of
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# the packages to prevent later imports to fail when the CWD is different.
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for module in sys.modules.values():
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if hasattr(module, '__path__'):
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for index, path in enumerate(module.__path__):
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module.__path__[index] = os.path.abspath(path)
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if getattr(module, '__file__', None):
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module.__file__ = os.path.abspath(module.__file__)
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if hasattr(sys, 'addaudithook'):
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# Add an auditing hook for all tests to ensure PySys_Audit is tested
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def _test_audit_hook(name, args):
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pass
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sys.addaudithook(_test_audit_hook)
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setup_unraisable_hook()
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setup_threading_excepthook()
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# Ensure there's a non-ASCII character in env vars at all times to force
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# tests consider this case. See BPO-44647 for details.
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if TESTFN_UNDECODABLE and os.supports_bytes_environ:
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os.environb.setdefault(UNICODE_GUARD_ENV.encode(), TESTFN_UNDECODABLE)
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elif FS_NONASCII:
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os.environ.setdefault(UNICODE_GUARD_ENV, FS_NONASCII)
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def setup_tests(runtests: RunTests):
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support.verbose = runtests.verbose
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support.failfast = runtests.fail_fast
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support.PGO = runtests.pgo
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support.PGO_EXTENDED = runtests.pgo_extended
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set_match_tests(runtests.match_tests)
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if runtests.use_junit:
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support.junit_xml_list = []
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from .testresult import RegressionTestResult
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RegressionTestResult.USE_XML = True
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else:
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support.junit_xml_list = None
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if runtests.memory_limit is not None:
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support.set_memlimit(runtests.memory_limit)
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support.suppress_msvcrt_asserts(runtests.verbose >= 2)
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support.use_resources = runtests.use_resources
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timeout = runtests.timeout
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if timeout is not None:
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# For a slow buildbot worker, increase SHORT_TIMEOUT and LONG_TIMEOUT
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support.LOOPBACK_TIMEOUT = max(support.LOOPBACK_TIMEOUT, timeout / 120)
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# don't increase INTERNET_TIMEOUT
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support.SHORT_TIMEOUT = max(support.SHORT_TIMEOUT, timeout / 40)
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support.LONG_TIMEOUT = max(support.LONG_TIMEOUT, timeout / 4)
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# If --timeout is short: reduce timeouts
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support.LOOPBACK_TIMEOUT = min(support.LOOPBACK_TIMEOUT, timeout)
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support.INTERNET_TIMEOUT = min(support.INTERNET_TIMEOUT, timeout)
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support.SHORT_TIMEOUT = min(support.SHORT_TIMEOUT, timeout)
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support.LONG_TIMEOUT = min(support.LONG_TIMEOUT, timeout)
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if runtests.hunt_refleak:
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unittest.BaseTestSuite._cleanup = False
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if runtests.gc_threshold is not None:
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gc.set_threshold(runtests.gc_threshold)
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random.seed(runtests.random_seed)
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