Re: [PATCH v1 1/2] tests/acceptance: move pkg extraction to avocado_qemu/

[Cleber Rosa]

Claudio Fontana writes:

> currently these utility functions are present only in boot_linux_console.py,
> but they are useful in general, not just for linux.
>
> In order to reuse them for a firmware test with OVMF, make these functions
> general utility functions inside avocado_qemu/ , from where we will
> punctually import them.
>
> Signed-off-by: Claudio Fontana <cfontana@suse.de>
> ---
>  tests/acceptance/avocado_qemu/__init__.py |  38 ++++++++
>  tests/acceptance/boot_linux_console.py    | 104 +++++++---------------
>  tests/acceptance/boot_xen.py              |   7 +-
>  tests/acceptance/replay_kernel.py         |  23 ++---
>  tests/acceptance/tcg_plugins.py           |   5 +-
>  5 files changed, 91 insertions(+), 86 deletions(-)
>
> diff --git a/tests/acceptance/avocado_qemu/__init__.py 
> b/tests/acceptance/avocado_qemu/__init__.py
> index 83b1741ec8..f625eb1ab7 100644
> --- a/tests/acceptance/avocado_qemu/__init__.py
> +++ b/tests/acceptance/avocado_qemu/__init__.py
> @@ -21,6 +21,7 @@
>  from avocado.utils import datadrainer
>  from avocado.utils import network
>  from avocado.utils import vmimage
> +from avocado.utils import process

It's also missing:

   from avocado.utils import archive

Because it's used...

>  from avocado.utils.path import find_command
>  
>  
> @@ -140,6 +141,43 @@ def wait_for_console_pattern(test, success_message, 
> failure_message=None,
>      """
>      _console_interaction(test, success_message, failure_message, None, vm=vm)
>  
> +def extract_from_deb(test, deb, path):
> +    """
> +    Extracts a file from a deb package into the test workdir
> +
> +    :param deb: 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(test.workdir)
> +    file_path = process.run("ar t %s" % deb).stdout_text.split()[2]
> +    process.run("ar x %s %s" % (deb, file_path))
> +    archive.extract(file_path, test.workdir)

... here.

Also there are some missing changes for other tests using
extract_from_(deb|rpm), such as:

diff --git a/tests/acceptance/boot_linux_console.py 
b/tests/acceptance/boot_linux_console.py
index 55ce7a5870..1caea29d27 100644
--- a/tests/acceptance/boot_linux_console.py
+++ b/tests/acceptance/boot_linux_console.py
@@ -92,7 +92,7 @@ def test_mips_malta(self):
                    'linux-image-2.6.32-5-4kc-malta_2.6.32-48_mips.deb')
         deb_hash = 'a8cfc28ad8f45f54811fc6cf74fc43ffcfe0ba04'
         deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
-        kernel_path = extract_from_deb(deb_path,
+        kernel_path = extract_from_deb(self, deb_path,
                                        '/boot/vmlinux-2.6.32-5-4kc-malta')
 
         self.vm.set_console()

I've seen the same or similar problems for other tests:

   tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_mips_malta: 
ERROR: extract_from_deb() missing 1 required positional argument: 'path' (0.03 
s)
   tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_mips64el_malta: 
ERROR: extract_from_deb() missing 1 required positional argument: 'path' (0.03 
s)
   
tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_mips64el_fuloong2e:
 ERROR: extract_from_deb() missing 1 required positional argument: 'path' (0.03 
s)
   
tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_mips_malta_cpio: 
ERROR: extract_from_deb() missing 1 required positional argument: 'path' (0.03 
s)
   
tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_raspi2_initrd:
   ERROR: 'BootLinuxConsole' object has no attribute 'extract_from_deb'
   (0.03 s)


Having said that, since Avocado 89.0[1] there is a new API[2] that
should be able to handle both deb and rpm extractions.

I'll try to post a suggestion based on that API here... unless you beat
me to it. :)

Thanks,
- Cleber.

[1] - 
https://avocado-framework.readthedocs.io/en/89.0/releases/89_0.html#utility-apis
[2] - 
https://avocado-framework.readthedocs.io/en/89.0/api/utils/avocado.utils.software_manager.html#avocado.utils.software_manager.SoftwareManager.extract_from_package