'L{lockfile.kill} raises L{OSError} with errno of L{ESRCH} if
passed a PID which does not correspond to any process.'

def test_killESRCH(self):

    exc = self.assertRaises(OSError, lockfile.kill, ((2 ** 31) - 1), 0)
    self.assertEqual(exc.errno, errno.ESRCH)
