[PATCH v2] test: boot: Add test for bootmeth_rauc

[Tom Rini]

On Thu, Oct 09, 2025 at 09:06:12AM +0200, Martin Schwan wrote:

> Add a simple unit test for testing the RAUC bootmethod. Provide only the
> very basic tests for now, running a scan and list, to verify correct
> detection of the RAUC bootmethod. More advanced boot tests of this
> bootmethod can be added in a separate patch.
> 
> This requires another mmc image (mmc9) to contain the following
> partitions:
> 
> 1. boot A: contains a dummy boot.scr
> 2. root A: contains an empty root filesystem
> 3. boot B: contains a dummy boot.scr
> 4. root B: contains an empty root filesystem
> 
> The bootmeth_rauc scans all four partitions for existence and expects a
> boot script in each boot partition.
> 
> Also add BOOTMETH_RAUC as a dependency on sandbox so that we can test
> this with:
> 
> $ ./test/py/test.py -B sandbox --build -k test_ut # build the mmc9.img
> $ ./test/py/test.py -B sandbox --build -k bootflow_rauc
> 
> Signed-off-by: Martin Schwan <m.schwan at phytec.de>
> ---
> Changes in v2:
> - Use mk_fs() instead of calling fallocate/mkfs/mcopy individually for
>   the boot and root partitions in mmc9.img
> - Link to v1: https://lore.kernel.org/r/20251008-wip-bootmeth-rauc-tests-v1-1-3da21a731524@phytec.de
> ---
>  arch/sandbox/dts/test.dts |  8 +++++++
>  configs/sandbox_defconfig |  1 +
>  test/boot/bootflow.c      | 57 +++++++++++++++++++++++++++++++++++++++++++++++
>  test/py/tests/test_ut.py  | 44 ++++++++++++++++++++++++++++++++++++
>  4 files changed, 110 insertions(+)

This doesn't work now:
=================================== FAILURES ===================================
___________________________ test_ut_dm_init_bootstd ____________________________
test/py/tests/test_ut.py:604: in test_ut_dm_init_bootstd
    setup_rauc_image(ubman)
test/py/tests/test_ut.py:581: in setup_rauc_image
    fs_helper.mk_fs(ubman.config, fs, 0x800000, fsfile.split('.')[0], bootdir)
test/py/tests/fs_helper.py:68: in mk_fs
    check_call(f'mcopy -i {fs_img} -vsmpQ {src_dir}/* ::/', shell=True)
/usr/lib/python3.10/subprocess.py:369: in check_call
    raise CalledProcessError(retcode, cmd)
E   subprocess.CalledProcessError: Command 'mcopy -i /tmp/sandbox/persistent-data/rauc_boot.fat32.img -vsmpQ /tmp/sandbox/persistent-data/boot/* ::/' returned non-zero exit status 1.
----------------------------- Captured stdout call -----------------------------

-- 
Tom
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