Re: [PATCH v2] tests/acceptance: Add bFLT loader linux-user test

[Thomas Huth <thuth@redhat.com>]

On 14/02/2021 20.45, Philippe Mathieu-Daudé wrote:
> Add a very quick test that runs a busybox binary in bFLT format:
> 
>    $ avocado --show=app run -t linux_user tests/acceptance/load_bflt.py
>    JOB ID     : db94d5960ce564c50904d666a7e259148c27e88f
>    JOB LOG    : ~/avocado/job-results/job-2019-06-25T10.52-db94d59/job.log
>     (1/1) tests/acceptance/load_bflt.py:LoadBFLT.test_stm32: PASS (0.15 s)
>    RESULTS    : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
>    JOB TIME   : 0.54 s
> 
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> Based-on: <20210214175912.732946-1-f4bug@amsat.org>
>    tests/acceptance: Extract QemuBaseTest from Test
>    tests/acceptance: Make pick_default_qemu_bin() more generic
>    tests/acceptance: Introduce QemuUserTest base class
> ---
>   tests/acceptance/load_bflt.py | 51 +++++++++++++++++++++++++++++++++++
>   1 file changed, 51 insertions(+)
>   create mode 100644 tests/acceptance/load_bflt.py
> 
> diff --git a/tests/acceptance/load_bflt.py b/tests/acceptance/load_bflt.py
> new file mode 100644
> index 00000000000..4b7796d0775
> --- /dev/null
> +++ b/tests/acceptance/load_bflt.py
> @@ -0,0 +1,51 @@
> +# Test the bFLT format
> +#
> +# Copyright (C) 2019 Philippe Mathieu-Daudé <f4bug@amsat.org>
> +#
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +
> +import os
> +import bz2
> +import subprocess
> +
> +from avocado_qemu import QemuUserTest
> +
> +
> +class LoadBFLT(QemuUserTest):
> +
> +    def extract_cpio(self, cpio_path):
> +        """
> +        Extracts a cpio archive into the test workdir
> +
> +        :param cpio_path: path to the cpio archive
> +        """
> +        cwd = os.getcwd()
> +        os.chdir(self.workdir)
> +        with bz2.open(cpio_path, 'rb') as archive_cpio:
> +            subprocess.run(['cpio', '-i'], input=archive_cpio.read(),
> +                           stderr=subprocess.DEVNULL)
> +        os.chdir(cwd)
> +
> +    @skipUnless(os.getenv('AVOCADO_ALLOW_UNTRUSTED_CODE'), 'untrusted code')

Can we assume that cpio is always available? Otherwise this needs a 
skipUnless check for has_cmd('cpio' ...).

  Thomas


> +    def test_stm32(self):
> +        """
> +        :avocado: tags=arch:arm
> +        :avocado: tags=linux_user
> +        :avocado: tags=quick
> +        """
> +        # See https://elinux.org/STM32#User_Space
> +        rootfs_url = ('https://elinux.org/images/5/51/'
> +                      'Stm32_mini_rootfs.cpio.bz2')
> +        rootfs_hash = '9f065e6ba40cce7411ba757f924f30fcc57951e6'
> +        rootfs_path_bz2 = self.fetch_asset(rootfs_url, asset_hash=rootfs_hash)
> +        busybox_path = self.workdir + "/bin/busybox"
> +
> +        self.extract_cpio(rootfs_path_bz2)
> +
> +        res = self.run(busybox_path)
> +        ver = 'BusyBox v1.24.0.git (2015-02-03 22:17:13 CET) multi-call binary.'
> +        self.assertIn(ver, res.stdout_text)
> +
> +        res = self.run(busybox_path, ['uname', '-a'])
> +        unm = 'armv7l GNU/Linux'
> +        self.assertIn(unm, res.stdout_text)
>