linux-kernel - Re: [RFC v1 00/31] kunit: Introducing KUnit, the Linux kernel unit testing framework

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Date:   Wed, 17 Oct 2018 15:43:45 -0500
From:   Rob Herring <robh@...nel.org>
To:     brendanhiggins@...gle.com
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        keescook@...gle.com, mcgrof@...nel.org, shuah@...nel.org,
        joel@....id.au, Michael Ellerman <mpe@...erman.id.au>,
        Joe Perches <joe@...ches.com>, brakmo@...com,
        Steven Rostedt <rostedt@...dmis.org>, Tim.Bird@...y.com,
        khilman@...libre.com, Julia Lawall <julia.lawall@...6.fr>,
        linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        jdike@...toit.com, richard@....at, linux-um@...ts.infradead.org
Subject: Re: [RFC v1 00/31] kunit: Introducing KUnit, the Linux kernel unit
 testing framework

On Tue, Oct 16, 2018 at 6:53 PM Brendan Higgins
<brendanhiggins@...gle.com> wrote:
>
> This patch set proposes KUnit, a lightweight unit testing and mocking
> framework for the Linux kernel.
>
> Unlike Autotest and kselftest, KUnit is a true unit testing framework;
> it does not require installing the kernel on a test machine or in a VM
> and does not require tests to be written in userspace running on a host
> kernel. Additionally, KUnit is fast: From invocation to completion KUnit
> can run several dozen tests in under a second. Currently, the entire
> KUnit test suite for KUnit runs in under a second from the initial
> invocation (build time excluded).
>
> KUnit is heavily inspired by JUnit, Python's unittest.mock, and
> Googletest/Googlemock for C++. KUnit provides facilities for defining
> unit test cases, grouping related test cases into test suites, providing
> common infrastructure for running tests, mocking, spying, and much more.

I very much like this. The DT code too has unit tests with our own,
simple infrastructure. They too can run under UML (and every other
arch).

Rob