Method test_boundaries

Lib/test/_test_multiprocessing.py:4109–4119

(self)

    @warnings_helper.ignore_fork_in_thread_deprecation_warnings()
    def test_boundaries(self):
        r, w = self.Pipe(False)
        p = self.Process(target=self._child_boundaries, args=(r,))
        p.start()
        time.sleep(2)
        L = [b"first", b"second"]
        for obj in L:
            w.send_bytes(obj)
        w.close()
        p.join()
        self.assertIn(r.recv_bytes(), L)

    @classmethod
    def _child_dont_merge(cls, b):