def test_long_plus(self):
    self._dll.tf_bl.restype = c_long
    self._dll.tf_bl.argtypes = (c_byte, c_long)
    self.assertEqual(self._dll.tf_bl(0, (- 2147483646)), (- 715827882))
    self.assertEqual(self.S(), (- 2147483646))
def test_long_plus(self):
    self._dll.tf_bl.restype = c_long
    self._dll.tf_bl.argtypes = (c_byte, c_long)
    self.assertEqual(self._dll.tf_bl(0, (- 2147483646)), (- 715827882))
    self.assertEqual(self.S(), (- 2147483646))