# We are the parent of our subprocess

self.assertEqual(int(stdout), os.getpid())

def check_waitpid(self, code, exitcode):

if sys.platform == 'win32':

# On Windows, os.spawnv() simply joins arguments with spaces:

# arguments need to be quoted

args = [f'"{sys.executable}"', '-c', f'"{code}"']

else:

args = [sys.executable, '-c', code]

pid = os.spawnv(os.P_NOWAIT, sys.executable, args)

pid2, status = os.waitpid(pid, 0)

if sys.platform == 'win32':

self.assertEqual(status, exitcode << 8)

else:

self.assertTrue(os.WIFEXITED(status), status)

self.assertEqual(os.WEXITSTATUS(status), exitcode)

self.assertEqual(pid2, pid)

def test_waitpid(self):

args = [sys.executable, '-c', 'pass']

# Add an implicit test for PyUnicode_FSConverter().

pid = os.spawnv(os.P_NOWAIT, FakePath(args[0]), args)

status = os.waitpid(pid, 0)

self.assertEqual(status, (pid, 0))

self.check_waitpid(code='pass', exitcode=0)

def test_waitpid_exitcode(self):

exitcode = 23

code = f'import sys; sys.exit({exitcode})'

self.check_waitpid(code, exitcode=exitcode)

@unittest.skipUnless(sys.platform == 'win32', 'win32-specific test')

def test_waitpid_windows(self):

# bpo-40138: test os.waitpid() with exit code larger than INT_MAX.

STATUS_CONTROL_C_EXIT = 0xC000013A

code = f'import _winapi; _winapi.ExitProcess({STATUS_CONTROL_C_EXIT})'

self.check_waitpid(code, exitcode=STATUS_CONTROL_C_EXIT)

class SpawnTests(unittest.TestCase):