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- # Test class for testing the boot process of a Linux kernel
- #
- # This work is licensed under the terms of the GNU GPL, version 2 or
- # later. See the COPYING file in the top-level directory.
- import os
- from .testcase import QemuSystemTest
- from .cmd import run_cmd, wait_for_console_pattern
- from .utils import archive_extract
- class LinuxKernelTest(QemuSystemTest):
- KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
- def wait_for_console_pattern(self, success_message, vm=None):
- wait_for_console_pattern(self, success_message,
- failure_message='Kernel panic - not syncing',
- vm=vm)
- def launch_kernel(self, kernel, initrd=None, dtb=None, console_index=0,
- wait_for=None):
- self.vm.set_console(console_index=console_index)
- self.vm.add_args('-kernel', kernel)
- if initrd:
- self.vm.add_args('-initrd', initrd)
- if dtb:
- self.vm.add_args('-dtb', dtb)
- self.vm.launch()
- if wait_for:
- self.wait_for_console_pattern(wait_for)
- def extract_from_deb(self, deb_path, path):
- """
- Extracts a file from a deb package into the test workdir
- :param deb_path: path to the deb archive
- :param path: path within the deb archive of the file to be extracted
- :returns: path of the extracted file
- """
- cwd = os.getcwd()
- os.chdir(self.workdir)
- (stdout, stderr, ret) = run_cmd(['ar', 't', deb_path])
- file_path = stdout.split()[2]
- run_cmd(['ar', 'x', deb_path, file_path])
- archive_extract(file_path, self.workdir)
- os.chdir(cwd)
- # Return complete path to extracted file. Because callers to
- # extract_from_deb() specify 'path' with a leading slash, it is
- # necessary to use os.path.relpath() as otherwise os.path.join()
- # interprets it as an absolute path and drops the self.workdir part.
- return os.path.normpath(os.path.join(self.workdir,
- os.path.relpath(path, '/')))
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