[U-Boot] [PATCH V3 1/7] test/py: Implement pytest infrastructure

[Stephen Warren <swarren@wwwdotorg.org>]

On 01/05/2016 03:58 PM, Stephen Warren wrote:
> This tool aims to test U-Boot by executing U-Boot shell commands using the
> console interface. A single top-level script exists to execute or attach
> to the U-Boot console, run the entire script of tests against it, and
> summarize the results. Advantages of this approach are:
>
> - Testing is performed in the same way a user or script would interact
>    with U-Boot; there can be no disconnect.
> - There is no need to write or embed test-related code into U-Boot itself.
>    It is asserted that writing test-related code in Python is simpler and
>    more flexible that writing it all in C.
> - It is reasonably simple to interact with U-Boot in this way.
>
> A few simple tests are provided as examples. Soon, we should convert as
> many as possible of the other tests in test/* and test/cmd_ut.c too.
>
> The hook scripts, relay control utilities, and udev rules I use for my
> own HW setup are published at https://github.com/swarren/uboot-test-hooks.
>
> See README.md for more details!

It looks like I need to send a v4 of this, since I renamed a Python 
class but forgot to update all users of it. I didn't notice this, since 
I had the old module lying around as a *.pyc file, so the old name worked:-(

I also have a couple of minor fixes to roll in that make the scripts 
work better under a continuous integration environment (which doesn't 
have a controlling TTY set when the scripts run, which need a minor 
tweak to the Spawn code).