Function test_multiprocessing_run

tests/test_run.py:639–664

Set we can run mutiprocesgin without messing up up main namespace Note that import `nose.tools as nt` modify the values sys.module['__mp_main__'] so we need to temporarily set it to None to test the issue.

()

def test_multiprocessing_run():
    """Set we can run mutiprocesgin without messing up up main namespace

    Note that import `nose.tools as nt` modify the values
    sys.module['__mp_main__'] so we need to temporarily set it to None to test
    the issue.
    """
    with TemporaryDirectory() as td:
        mpm = sys.modules.get("__mp_main__")
        sys.modules["__mp_main__"] = None
        try:
            path = pjoin(td, "test.py")
            with open(path, "w", encoding="utf-8") as f:
                f.write("import multiprocessing\nprint('hoy')")
            with capture_output() as io:
                _ip.run_line_magic("run", path)
                _ip.run_cell("i_m_undefined")
            out = io.stdout
            assert "hoy" in out
            assert "AttributeError" not in out
            assert "NameError" in out
            assert out.count("---->") == 1
        except:
            raise
        finally:
            sys.modules["__mp_main__"] = mpm


def test_script_tb():