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SubjectRe: [PATCH v5 kunit-next 4/4] kunit: update documentation to describe debugfs representation
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On 2/19/20 10:17 AM, Alan Maguire wrote:
> Documentation should describe debugfs layout and semantics.
>
> Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
> Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
> ---
> Documentation/dev-tools/kunit/usage.rst | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst
> index 607758a..14b0236 100644
> --- a/Documentation/dev-tools/kunit/usage.rst
> +++ b/Documentation/dev-tools/kunit/usage.rst
> @@ -591,3 +591,16 @@ able to run one test case per invocation.
>
> .. TODO(brendanhiggins@google.com): Add an actual example of an architecture
> dependent KUnit test.
> +
> +KUnit debugfs representation
> +============================
> +When kunit test suites are initialized, they create an associated directory
> +in /sys/kernel/debug/kunit/<test-suite>. The directory contains one file
> +
> +- results: "cat results" displays results of each test case and the results
> + of the entire suite for the last test run.
> +
> +The debugfs representation is primarily of use when kunit test suites are
> +run in a native environment, either as modules or builtin. Having a way
> +to display results like this is valuable as otherwise results can be
> +intermixed with other events in dmesg output.
>

Given my corrected understanding of kunit_log():

+The maximum size of each 'results' file is KUNIT_LOG_SIZE bytes.

Am I understanding this correctly?

-Frank

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