tests/acceptance/boot_linux_console.py

   1 # Functional test that boots a Linux kernel and checks the console
   2 #
   3 # Copyright (c) 2018 Red Hat, Inc.
   4 #
   5 # Author:
   6 #  Cleber Rosa <crosa@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 logging
  12
  13 from avocado_qemu import Test
  14
  15
  16 class BootLinuxConsole(Test):
  17     """
  18     Boots a Linux kernel and checks that the console is operational and the
  19     kernel command line is properly passed from QEMU to the kernel
  20     """
  21
  22     timeout = 90
  23
  24     KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
  25
  26     def wait_for_console_pattern(self, success_message,
  27                                  failure_message='Kernel panic - not syncing'):
  28         """
  29         Waits for messages to appear on the console, while logging the content
  30
  31         :param success_message: if this message appears, test succeeds
  32         :param failure_message: if this message appears, test fails
  33         """
  34         console = self.vm.console_socket.makefile()
  35         console_logger = logging.getLogger('console')
  36         while True:
  37             msg = console.readline()
  38             console_logger.debug(msg.strip())
  39             if success_message in msg:
  40                 break
  41             if failure_message in msg:
  42                 fail = 'Failure message found in console: %s' % failure_message
  43                 self.fail(fail)
  44
  45     def test_x86_64_pc(self):
  46         """
  47         :avocado: tags=arch:x86_64
  48         :avocado: tags=machine:pc
  49         """
  50         kernel_url = ('https://download.fedoraproject.org/pub/fedora/linux/'
  51                       'releases/29/Everything/x86_64/os/images/pxeboot/vmlinuz')
  52         kernel_hash = '23bebd2680757891cf7adedb033532163a792495'
  53         kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
  54
  55         self.vm.set_machine('pc')
  56         self.vm.set_console()
  57         kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE + 'console=ttyS0'
  58         self.vm.add_args('-kernel', kernel_path,
  59                          '-append', kernel_command_line)
  60         self.vm.launch()
  61         console_pattern = 'Kernel command line: %s' % kernel_command_line
  62         self.wait_for_console_pattern(console_pattern)