On 12/22/2017 03:28 PM, Tri Vo wrote:

Hello,

Android kernel team is planning to develop procfs and sysfs tests and contribute them to linux-kselftest project. The plan for sysfs tests right now, as suggested by Greg KH, is to write a minimal "generic" test framework that allows you to easily specify: - file location - expected value type (integer, string, range of values, etc.) - expected permissions

Could/should this approach be extended to test procfs and other virtual filesystems? We would really appreciate some input on the test plan. :)

This proposal sounds similar to the work I have done in the past. I have been thinking about proposing to use this framework for sysfs and procfs files and add it to Kselftest. Kind of stayed on my back-burner for a bit.

Can you please take a look at

https://github.com/shuahkh/linalyse

and see if that would work as base for the work you are proposing.

For example:

One of the options takes an input file with list of required files. Each line specifies a file and data range. It checks if files exist.

If file is a regular files, it will check the contents.

Each line in the input file has comma separated fields. e.g:

/sys/class/backlight/*/max_brightness,4000,5000

The above will expand to find all max_brightness file. Data is compared to be within the range: 4000 < data < 5000

/sys/class/backlight/*/max_brightness,4000,

The above will expand to find all max_brightness file. Data in the file is matched to 4000.

I was using this to regression test my test systems for a while back.

thanks, -- Shuah -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html