linux-hardening - [PATCH v2 0/9] kunit: Add test attributes API

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Date:   Mon, 24 Jul 2023 16:28:20 +0000
From:   Rae Moar <rmoar@...gle.com>
To:     shuah@...nel.org, davidgow@...gle.com, dlatypov@...gle.com,
        brendan.higgins@...ux.dev
Cc:     linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kernel@...r.kernel.org, keescook@...omium.org,
        linux-hardening@...r.kernel.org, jstultz@...gle.com,
        tglx@...utronix.de, sboyd@...nel.org, Rae Moar <rmoar@...gle.com>
Subject: [PATCH v2 0/9] kunit: Add test attributes API

Hello everyone,

This patch series adds a test attributes framework to KUnit.

There has been interest in filtering out "slow" KUnit tests. Most notably,
a new config, CONFIG_MEMCPY_SLOW_KUNIT_TEST, has been added to exclude a
particularly slow memcpy test
(https://lore.kernel.org/all/20230118200653.give.574-kees@kernel.org/).

This attributes framework can be used to save and access test associated
data, including whether a test is slow. These attributes are reportable
(via KTAP and command line output) and are also filterable.

This framework is designed to allow for the addition of other attributes in
the future. These attributes could include whether the test can be run
concurrently, test file path, etc.

To try out the framework I suggest running:
"./tools/testing/kunit/kunit.py run --filter speed!=slow"

This patch series was originally sent out as an RFC. Here is a link to the
RFC v2:
https://lore.kernel.org/all/20230707210947.1208717-1-rmoar@google.com/

Thanks!
Rae

Rae Moar (9):
  kunit: Add test attributes API structure
  kunit: Add speed attribute
  kunit: Add module attribute
  kunit: Add ability to filter attributes
  kunit: tool: Add command line interface to filter and report
    attributes
  kunit: memcpy: Mark tests as slow using test attributes
  kunit: time: Mark test as slow using test attributes
  kunit: add tests for filtering attributes
  kunit: Add documentation of KUnit test attributes

 .../dev-tools/kunit/running_tips.rst          | 166 +++++++
 include/kunit/attributes.h                    |  50 +++
 include/kunit/test.h                          |  70 ++-
 kernel/time/time_test.c                       |   2 +-
 lib/Kconfig.debug                             |   3 +
 lib/kunit/Makefile                            |   3 +-
 lib/kunit/attributes.c                        | 418 ++++++++++++++++++
 lib/kunit/executor.c                          | 115 ++++-
 lib/kunit/executor_test.c                     | 128 +++++-
 lib/kunit/kunit-example-test.c                |   9 +
 lib/kunit/test.c                              |  27 +-
 lib/memcpy_kunit.c                            |   8 +-
 tools/testing/kunit/kunit.py                  |  70 ++-
 tools/testing/kunit/kunit_kernel.py           |   8 +-
 tools/testing/kunit/kunit_parser.py           |  11 +-
 tools/testing/kunit/kunit_tool_test.py        |  39 +-
 16 files changed, 1051 insertions(+), 76 deletions(-)
 create mode 100644 include/kunit/attributes.h
 create mode 100644 lib/kunit/attributes.c


base-commit: 64bd4641310c41a1ecf07c13c67bc0ed61045dfd
-- 
2.41.0.487.g6d72f3e995-goog