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Input: Add KUnit tests for some of the input core helper functions

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The input subsystem doesn't currently have any unit tests, let's add a
CONFIG_INPUT_KUNIT_TEST option that builds a test suite to be executed
with the KUnit test infrastructure.

For now, only three tests were added for some of the input core helper
functions that are trivial to test:

  * input_test_polling: set/get poll interval and set-up a poll handler.

  * input_test_timestamp: set/get input event timestamps.

  * input_test_match_device_id: match a device by bus, vendor, product,
                                version and events capable of handling.

But having the minimal KUnit support allows to add more tests and suites
as follow-up changes. The tests can be run with the following command:

  $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/input/tests/

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Enric Balletbo i Serra <eballetbo@redhat.com>
config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20230330/202303301815.kRKFM3NH-lkp@intel.com/config)
Link: https://lore.kernel.org/r/20230330081831.2291351-1-javierm@redhat.com

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Javier Martinez Canillas
2023-04-01 22:45:09 -07:00
committed by Dmitry Torokhov
parent 57d94d150d
commit fdefcbdd6f
5 changed files with 167 additions and 0 deletions
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drivers/input/tests/.kunitconfig Normal file
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CONFIG_KUNIT=y
CONFIG_INPUT=y
CONFIG_INPUT_KUNIT_TEST=y