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Issue #25220, libregrtest: Move setup_python() to a new submodule
This commit is contained in:
Victor Stinner
parent
c7eab0528c
commit
234cbef39f
2 changed files with 123 additions and 110 deletions
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@ -1,19 +1,16 @@
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import faulthandler
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import os
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import platform
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import random
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import re
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import signal
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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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import unittest
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from test.libregrtest.runtest import (
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findtests, runtest,
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STDTESTS, NOTTESTS, PASSED, FAILED, ENV_CHANGED, SKIPPED, RESOURCE_DENIED)
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from test.libregrtest.refleak import warm_caches
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from test.libregrtest.cmdline import _parse_args
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from test.libregrtest.setup import setup_python
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from test import support
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try:
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import gc
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@ -31,88 +28,6 @@ else:
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TEMPDIR = os.path.abspath(TEMPDIR)
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def setup_python(ns):
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# Display the Python traceback on fatal errors (e.g. segfault)
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faulthandler.enable(all_threads=True)
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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)
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replace_stdout()
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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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module.__path__ = [os.path.abspath(path)
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for path in module.__path__]
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if hasattr(module, '__file__'):
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module.__file__ = os.path.abspath(module.__file__)
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# MacOSX (a.k.a. Darwin) has a default stack size that is too small
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# for deeply recursive regular expressions. We see this as crashes in
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# the Python test suite when running test_re.py and test_sre.py. The
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# fix is to set the stack limit to 2048.
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# This approach may also be useful for other Unixy platforms that
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# suffer from small default stack limits.
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if sys.platform == 'darwin':
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try:
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import resource
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except ImportError:
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pass
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else:
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soft, hard = resource.getrlimit(resource.RLIMIT_STACK)
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newsoft = min(hard, max(soft, 1024*2048))
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resource.setrlimit(resource.RLIMIT_STACK, (newsoft, hard))
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if ns.huntrleaks:
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unittest.BaseTestSuite._cleanup = False
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# Avoid false positives due to various caches
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# filling slowly with random data:
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warm_caches()
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if ns.memlimit is not None:
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support.set_memlimit(ns.memlimit)
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if ns.threshold is not None:
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if gc is not None:
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gc.set_threshold(ns.threshold)
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else:
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print('No GC available, ignore --threshold.')
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if ns.nowindows:
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import msvcrt
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msvcrt.SetErrorMode(msvcrt.SEM_FAILCRITICALERRORS|
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msvcrt.SEM_NOALIGNMENTFAULTEXCEPT|
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msvcrt.SEM_NOGPFAULTERRORBOX|
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msvcrt.SEM_NOOPENFILEERRORBOX)
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try:
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msvcrt.CrtSetReportMode
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except AttributeError:
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# release build
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pass
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else:
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for m in [msvcrt.CRT_WARN, msvcrt.CRT_ERROR, msvcrt.CRT_ASSERT]:
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msvcrt.CrtSetReportMode(m, msvcrt.CRTDBG_MODE_FILE)
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msvcrt.CrtSetReportFile(m, msvcrt.CRTDBG_FILE_STDERR)
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class Regrtest:
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"""Execute a test suite.
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@ -192,8 +107,14 @@ class Regrtest:
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self.test_count, len(self.bad), test),
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flush=True)
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def setup_regrtest(self):
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if self.ns.findleaks:
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def parse_args(self, kwargs):
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ns = _parse_args(sys.argv[1:], **kwargs)
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if ns.threshold is not None and gc is None:
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print('No GC available, ignore --threshold.')
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ns.threshold = None
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if ns.findleaks:
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if gc is not None:
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# Uncomment the line below to report garbage that is not
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# freeable by reference counting alone. By default only
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@ -202,10 +123,12 @@ class Regrtest:
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#gc.set_debug(gc.DEBUG_SAVEALL)
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else:
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print('No GC available, disabling --findleaks')
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self.ns.findleaks = False
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ns.findleaks = False
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# Strip .py extensions.
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removepy(self.ns.args)
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removepy(ns.args)
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return ns
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def find_tests(self, tests):
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self.tests = tests
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@ -434,9 +357,9 @@ class Regrtest:
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os.system("leaks %d" % os.getpid())
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def main(self, tests=None, **kwargs):
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self.ns = _parse_args(sys.argv[1:], **kwargs)
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self.ns = self.parse_args(kwargs)
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setup_python(self.ns)
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self.setup_regrtest()
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if self.ns.slaveargs is not None:
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from test.libregrtest.runtest_mp import run_tests_slave
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@ -452,24 +375,6 @@ class Regrtest:
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sys.exit(len(self.bad) > 0 or self.interrupted)
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def replace_stdout():
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"""Set stdout encoder error handler to backslashreplace (as stderr error
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handler) to avoid UnicodeEncodeError when printing a traceback"""
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import atexit
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stdout = sys.stdout
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sys.stdout = open(stdout.fileno(), 'w',
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encoding=stdout.encoding,
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errors="backslashreplace",
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closefd=False,
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newline='\n')
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def restore_stdout():
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sys.stdout.close()
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sys.stdout = stdout
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atexit.register(restore_stdout)
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def removepy(names):
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if not names:
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return
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108
Lib/test/libregrtest/setup.py
Normal file
108
Lib/test/libregrtest/setup.py
Normal file
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@ -0,0 +1,108 @@
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import atexit
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import faulthandler
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import os
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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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try:
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import gc
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except ImportError:
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gc = None
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from test.libregrtest.refleak import warm_caches
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def setup_python(ns):
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# Display the Python traceback on fatal errors (e.g. segfault)
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faulthandler.enable(all_threads=True)
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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)
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replace_stdout()
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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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module.__path__ = [os.path.abspath(path)
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for path in module.__path__]
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if hasattr(module, '__file__'):
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module.__file__ = os.path.abspath(module.__file__)
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# MacOSX (a.k.a. Darwin) has a default stack size that is too small
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# for deeply recursive regular expressions. We see this as crashes in
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# the Python test suite when running test_re.py and test_sre.py. The
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# fix is to set the stack limit to 2048.
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# This approach may also be useful for other Unixy platforms that
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# suffer from small default stack limits.
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if sys.platform == 'darwin':
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try:
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import resource
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except ImportError:
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pass
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else:
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soft, hard = resource.getrlimit(resource.RLIMIT_STACK)
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newsoft = min(hard, max(soft, 1024*2048))
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resource.setrlimit(resource.RLIMIT_STACK, (newsoft, hard))
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if ns.huntrleaks:
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unittest.BaseTestSuite._cleanup = False
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# Avoid false positives due to various caches
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# filling slowly with random data:
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warm_caches()
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if ns.memlimit is not None:
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support.set_memlimit(ns.memlimit)
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if ns.threshold is not None:
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gc.set_threshold(ns.threshold)
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if ns.nowindows:
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import msvcrt
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msvcrt.SetErrorMode(msvcrt.SEM_FAILCRITICALERRORS|
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msvcrt.SEM_NOALIGNMENTFAULTEXCEPT|
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msvcrt.SEM_NOGPFAULTERRORBOX|
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msvcrt.SEM_NOOPENFILEERRORBOX)
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try:
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msvcrt.CrtSetReportMode
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except AttributeError:
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# release build
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pass
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else:
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for m in [msvcrt.CRT_WARN, msvcrt.CRT_ERROR, msvcrt.CRT_ASSERT]:
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msvcrt.CrtSetReportMode(m, msvcrt.CRTDBG_MODE_FILE)
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msvcrt.CrtSetReportFile(m, msvcrt.CRTDBG_FILE_STDERR)
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def replace_stdout():
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"""Set stdout encoder error handler to backslashreplace (as stderr error
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handler) to avoid UnicodeEncodeError when printing a traceback"""
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stdout = sys.stdout
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sys.stdout = open(stdout.fileno(), 'w',
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encoding=stdout.encoding,
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errors="backslashreplace",
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closefd=False,
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newline='\n')
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def restore_stdout():
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sys.stdout.close()
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sys.stdout = stdout
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atexit.register(restore_stdout)
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