cpython/Tools/scripts/run_tests.py
Victor Stinner fbfec5642e
gh-109566: regrtest reexecutes the process (#109909)
When --fast-ci or --slow-ci option is used, regrtest now replaces the
current process with a new process to add "-u -W default -bb -E"
options to Python.

Changes:

* PCbuild/rt.bat and Tools/scripts/run_tests.py no longer need to add
  "-u -W default -bb -E" options to Python: it's now done by
  regrtest.
* Fix Tools/scripts/run_tests.py: flush stdout before replacing the
  process. Previously, buffered messages were lost.
2023-09-26 20:46:52 +02:00

78 lines
2.5 KiB
Python

"""Run Python's test suite in a fast, rigorous way.
The defaults are meant to be reasonably thorough, while skipping certain
tests that can be time-consuming or resource-intensive (e.g. largefile),
or distracting (e.g. audio and gui). These defaults can be overridden by
simply passing a -u option to this script.
"""
import os
import shlex
import sys
import sysconfig
import test.support
def is_multiprocess_flag(arg):
return arg.startswith('-j') or arg.startswith('--multiprocess')
def is_python_flag(arg):
return arg.startswith('-p') or arg.startswith('--python')
def main(regrtest_args):
args = [sys.executable]
cross_compile = '_PYTHON_HOST_PLATFORM' in os.environ
if (hostrunner := os.environ.get("_PYTHON_HOSTRUNNER")) is None:
hostrunner = sysconfig.get_config_var("HOSTRUNNER")
if cross_compile:
# emulate -E, but keep PYTHONPATH + cross compile env vars, so
# test executable can load correct sysconfigdata file.
keep = {
'_PYTHON_PROJECT_BASE',
'_PYTHON_HOST_PLATFORM',
'_PYTHON_SYSCONFIGDATA_NAME',
'PYTHONPATH'
}
environ = {
name: value for name, value in os.environ.items()
if not name.startswith(('PYTHON', '_PYTHON')) or name in keep
}
else:
environ = os.environ.copy()
# Allow user-specified interpreter options to override our defaults.
args.extend(test.support.args_from_interpreter_flags())
args.extend(['-m', 'test', # Run the test suite
'--fast-ci', # Fast Continuous Integration mode
])
if not any(is_multiprocess_flag(arg) for arg in regrtest_args):
if cross_compile and hostrunner:
# For now use only two cores for cross-compiled builds;
# hostrunner can be expensive.
args.extend(['-j', '2'])
if cross_compile and hostrunner:
# If HOSTRUNNER is set and -p/--python option is not given, then
# use hostrunner to execute python binary for tests.
if not any(is_python_flag(arg) for arg in regrtest_args):
buildpython = sysconfig.get_config_var("BUILDPYTHON")
args.extend(["--python", f"{hostrunner} {buildpython}"])
args.extend(regrtest_args)
print(shlex.join(args), flush=True)
if sys.platform == 'win32':
from subprocess import call
sys.exit(call(args))
else:
os.execve(sys.executable, args, environ)
if __name__ == '__main__':
main(sys.argv[1:])