tests/acceptance/linux_initrd.py

   1 # Linux initrd acceptance test.
   2 #
   3 # Copyright (c) 2018 Red Hat, Inc.
   4 #
   5 # Author:
   6 #  Wainer dos Santos Moschetta <wainersm@redhat.com>
   7 #
   8 # This work is licensed under the terms of the GNU GPL, version 2 or
   9 # later.  See the COPYING file in the top-level directory.
  10
  11 import tempfile
  12 from avocado.utils.process import run
  13
  14 from avocado_qemu import Test
  15
  16
  17 class LinuxInitrd(Test):
  18     """
  19     Checks QEMU evaluates correctly the initrd file passed as -initrd option.
  20
  21     :avocado: enable
  22     :avocado: tags=x86_64
  23     """
  24
  25     timeout = 60
  26
  27     def test_with_2gib_file_should_exit_error_msg(self):
  28         """
  29         Pretends to boot QEMU with an initrd file with size of 2GiB
  30         and expect it exits with error message.
  31         """
  32         kernel_url = ('https://mirrors.kernel.org/fedora/releases/28/'
  33                       'Everything/x86_64/os/images/pxeboot/vmlinuz')
  34         kernel_hash = '238e083e114c48200f80d889f7e32eeb2793e02a'
  35         kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
  36         max_size = 2 * (1024 ** 3) - 1
  37
  38         with tempfile.NamedTemporaryFile() as initrd:
  39             initrd.seek(max_size)
  40             initrd.write(b'\0')
  41             initrd.flush()
  42             cmd = "%s -kernel %s -initrd %s" % (self.qemu_bin, kernel_path,
  43                                                 initrd.name)
  44             res = run(cmd, ignore_status=True)
  45             self.assertEqual(res.exit_status, 1)
  46             expected_msg = r'.*initrd is too large.*max: \d+, need %s.*' % (
  47                 max_size + 1)
  48             self.assertRegex(res.stderr_text, expected_msg)