[U-Boot] [PATCH v2 3/3] tests: py: dfu: Provide functionality to set test and dummy files alt settings

[Stephen Warren <swarren@wwwdotorg.org>]

On 04/19/2016 09:51 AM, Lukasz Majewski wrote:
> After concatenation of "dfu_alt_info" variable from "dfu_alt_boot" and
> "dfu_alt_system" it may happen that test and dummy files alt settings
> are different than default 0 and 1.
>
> This patch provides the ability to set different values for them.

> @@ -122,6 +139,8 @@ def test_dfu(u_boot_console, env__usb_dev_port, env__dfu_config):
>           Returns:
>               Nothing.
>           """
> +        global alt_setting_test_file
> +        global alt_setting_dummy_file

There should be a blank line after the """ line. Although per the 
comments below, you can simply drop this part of the diff completely.

> @@ -132,6 +151,9 @@ def test_dfu(u_boot_console, env__usb_dev_port, env__dfu_config):
>           u_boot_console.log.action(
>               'Starting long-running U-Boot dfu shell command')
>
> +        alt_setting_test_file = env__dfu_config.get('alt_id_test_file', '0')
> +        alt_setting_dummy_file = env__dfu_config.get('alt_id_dummy_file', '1')

This always over-writes alt_setting_test_file, and changes the type from 
integer (as specified by the current global assignment added in patch 1) 
to string. You may as well simply remove the "global" lines added in 
this patch, and the global assignment, since this patch always assigns a 
value to those variables.

Since the variable always contains a string now, you can remove the 
str() call from run_dfu_util()'s assignment to cmd[].