[U-Boot] [PATCH 5/7] test/py: Add base test case for A/B updates

[Simon Glass]

On Tue, 27 Nov 2018 at 12:57, Ruslan Trofymenko
<ruslan.trofymenko at linaro.org> wrote:
>
> Add sandbox test for 'android_ab_select' command.
>
> Test: ./test/py/test.py --bd sandbox --build -k test_ab
>
> Signed-off-by: Ruslan Trofymenko <ruslan.trofymenko at linaro.org>
> ---
>  configs/sandbox_defconfig |  2 ++
>  test/py/tests/test_ab.py  | 74 +++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 76 insertions(+)
>  create mode 100644 test/py/tests/test_ab.py

Reviewed-by: Simon Glass <sjg at chromium.org>

Please see below

>
> diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
> index 5a744f4..f246f89 100644
> --- a/configs/sandbox_defconfig
> +++ b/configs/sandbox_defconfig
> @@ -20,6 +20,7 @@ CONFIG_PRE_CON_BUF_ADDR=0x100000
>  CONFIG_LOG_MAX_LEVEL=6
>  CONFIG_LOG_ERROR_RETURN=y
>  CONFIG_DISPLAY_BOARDINFO_LATE=y
> +CONFIG_ANDROID_AB=y
>  CONFIG_CMD_CPU=y
>  CONFIG_CMD_LICENSE=y
>  CONFIG_CMD_BOOTZ=y
> @@ -61,6 +62,7 @@ CONFIG_CMD_TIME=y
>  CONFIG_CMD_TIMER=y
>  CONFIG_CMD_SOUND=y
>  CONFIG_CMD_QFW=y
> +CONFIG_CMD_ANDROID_AB_SELECT=y
>  CONFIG_CMD_BOOTSTAGE=y
>  CONFIG_CMD_PMIC=y
>  CONFIG_CMD_REGULATOR=y
> diff --git a/test/py/tests/test_ab.py b/test/py/tests/test_ab.py
> new file mode 100644
> index 0000000..f27538e
> --- /dev/null
> +++ b/test/py/tests/test_ab.py
> @@ -0,0 +1,74 @@
> +# SPDX-License-Identifier: GPL-2.0
> +# (C) Copyright 2018 Texas Instruments, <www.ti.com>
> +
> +# Test A/B update commands.
> +
> +import os
> +import pytest
> +import u_boot_utils
> +
> +class ABTestDiskImage(object):
> +    """Disk Image used by the A/B tests."""
> +
> +    def __init__(self, u_boot_console):
> +        """Initialize a new ABTestDiskImage object.
> +
> +        Args:
> +            u_boot_console: A U-Boot console.
> +
> +        Returns:
> +            Nothing.
> +        """
> +
> +        filename = 'test_ab_disk_image.bin'
> +
> +        persistent = u_boot_console.config.persistent_data_dir + '/' + filename
> +        self.path = u_boot_console.config.result_dir  + '/' + filename
> +
> +        with u_boot_utils.persistent_file_helper(u_boot_console.log, persistent):
> +            if os.path.exists(persistent):
> +                u_boot_console.log.action('Disk image file ' + persistent +
> +                    ' already exists')
> +            else:
> +                u_boot_console.log.action('Generating ' + persistent)
> +                fd = os.open(persistent, os.O_RDWR | os.O_CREAT)
> +                os.ftruncate(fd, 524288)
> +                os.close(fd)
> +                cmd = ('sgdisk', persistent)
> +                u_boot_utils.run_and_log(u_boot_console, cmd)
> +
> +                cmd = ('sgdisk', '--new=1:64:512', '-c 1:misc', persistent)
> +                u_boot_utils.run_and_log(u_boot_console, cmd)
> +                cmd = ('sgdisk', '-l', persistent)
> +                u_boot_utils.run_and_log(u_boot_console, cmd)
> +
> +        cmd = ('cp', persistent, self.path)
> +        u_boot_utils.run_and_log(u_boot_console, cmd)
> +
> +di = None
> + at pytest.fixture(scope='function')
> +def ab_disk_image(u_boot_console):
> +    global di
> +    if not di:
> +        di = ABTestDiskImage(u_boot_console)
> +    return di
> +
> + at pytest.mark.boardspec('sandbox')
> + at pytest.mark.buildconfigspec('android_ab')
> + at pytest.mark.buildconfigspec('cmd_android_ab_select')
> + at pytest.mark.requiredtool('sgdisk')
> +def test_ab(ab_disk_image, u_boot_console):
> +    """Test the 'android_ab_select' command."""
> +
> +    u_boot_console.run_command('host bind 0 ' + ab_disk_image.path)
> +
> +    output = u_boot_console.run_command('android_ab_select slot_name host 0#misc')
> +    assert 're-initializing A/B metadata' in output
> +    assert 'Attempting slot a, tries remaining 7' in output
> +    output = u_boot_console.run_command('printenv slot_name')
> +    assert 'a' in output

I just worry their mind be other next there.

Maybe assert 'b' not in output ?

> +
> +    output = u_boot_console.run_command('android_ab_select slot_name host 0:1')
> +    assert 'Attempting slot b, tries remaining 7' in output
> +    output = u_boot_console.run_command('printenv slot_name')
> +    assert 'b' in output
> --
> 2.7.4
>

Regards,
Simon