120 lines
4.3 KiB
Python
120 lines
4.3 KiB
Python
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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.utils import setup_unraisable_hook
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def setup_tests(ns):
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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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replace_stdout()
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support.record_original_stdout(sys.stdout)
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if ns.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(ns.testdir))
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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 ns.huntrleaks:
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unittest.BaseTestSuite._cleanup = False
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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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support.suppress_msvcrt_asserts(ns.verbose and ns.verbose >= 2)
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support.use_resources = ns.use_resources
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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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if ns.timeout is not None:
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# For a slow buildbot worker, increase SHORT_TIMEOUT and LONG_TIMEOUT
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support.SHORT_TIMEOUT = max(support.SHORT_TIMEOUT, ns.timeout / 40)
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support.LONG_TIMEOUT = max(support.LONG_TIMEOUT, ns.timeout / 4)
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# If --timeout is short: reduce timeouts
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support.LOOPBACK_TIMEOUT = min(support.LOOPBACK_TIMEOUT, ns.timeout)
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support.INTERNET_TIMEOUT = min(support.INTERNET_TIMEOUT, ns.timeout)
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support.SHORT_TIMEOUT = min(support.SHORT_TIMEOUT, ns.timeout)
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support.LONG_TIMEOUT = min(support.LONG_TIMEOUT, ns.timeout)
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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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try:
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fd = stdout.fileno()
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except ValueError:
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# On IDLE, sys.stdout has no file descriptor and is not a TextIOWrapper
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# object. Leaving sys.stdout unchanged.
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#
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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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return
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sys.stdout = open(fd, '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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