def test_multiprocessing_context_poll_raises_exception(self):
mp_context = MultiprocessContext(
name="test_mp",
entrypoint=echo0,
args={0: (0, 1)},
envs={},
stdouts={0: {}},
stderrs={0: {}},
tee_stdouts={0: "tee_stdout"},
tee_stderrs={0: "tee_stderr"},
error_files={0: "test_file"},
start_method="spawn",
)
mp_context._pc = mock.Mock()
# Using mock since we cannot just set exitcode on process
mock_process = mock.Mock()
mock_process.exitcode = -1
mp_context._pc.processes = [mock_process]
e = mp.ProcessRaisedException(msg="test msg", error_index=0, error_pid=123)
mp_context._pc.join.side_effect = e
with mock.patch.object(mp_context, "close"):
run_result = mp_context._poll()
self.assertEqual(1, len(run_result.failures))
failure = run_result.failures[0]
self.assertEqual("Signal 1 (SIGHUP) received by PID 123", failure.message)
def test_errors_pickleable(self):
for error in (
mp.ProcessRaisedException("Oh no!", 1, 1),
mp.ProcessExitedException("Oh no!", 1, 1, 1),
):
pickle.loads(pickle.dumps(error))