cpython/Lib/test/test_eintr.py

import os
import signal
import unittest

from test import support
from test.support import script_helper


@unittest.skipUnless(os.name == "posix", "only supported on Unix")
class EINTRTests(unittest.TestCase):

    @unittest.skipUnless(hasattr(signal, "setitimer"), "requires setitimer()")
    def test_all(self):
        # Run the tester in a sub-process, to make sure there is only one
        # thread (for reliable signal delivery).
        tester = support.findfile("eintr_tester.py", subdir="eintrdata")
        # use -u to try to get the full output if the test hangs or crash
        script_helper.assert_python_ok("-u", tester)


if __name__ == "__main__":
    unittest.main()