text: # Copyright (c) Facebook, Inc. and its affiliates.
  #
  # This source code is licensed under the MIT license found in the
  # LICENSE file in the root directory of this source tree.
  
  import unittest
  import errno
  
  from poke import process_vm_readv_wrapper
  
  
  class ProcessVmReadvTestCase(unittest.TestCase):
      def test_handles_errno(self):
          with self.assertRaises(OSError) as e:
              process_vm_readv_wrapper(0, 0x0, 4)
          self.assertEqual(e.exception.errno, errno.ESRCH)  # no such process
  