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Rework the IIO test Kconfig to support building KUnit tests as modules.
This lets users execute tests at runtime in addition to the usual
tools/testing/kunit/kunit.py script.
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Link: https://lore.kernel.org/r/20220710013109.3349104-6-liambeguin@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The KUnit documentation indicates that all KUnit Kconfig entries must
match CONFIG_<name>_KUNIT_TEST: where <name> is the name of the test
suite. Rename the IIO_TEST_FORMAT configuration accordingly.
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Link: https://lore.kernel.org/r/20220710013109.3349104-4-liambeguin@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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When IIO_RESCALE_KUNIT_TEST=y and IIO_RESCALE=m,
drivers/iio/afe/iio-rescale.o is built twice causing the
MODULE_LICENSE() to be lost, as shown by:
ERROR: modpost: missing MODULE_LICENSE() in drivers/iio/afe/iio-rescale.o
Rework the build configuration to have the dependency specified in the
Kconfig.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 8e74a48d17d5 ("iio: test: add basic tests for the iio-rescale driver")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20220601142138.3331278-1-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The iio-rescale driver supports various combinations of scale types and
offsets. These can often result in large integer multiplications. Make
sure these calculations are done right by adding a set of kunit test
cases that build on top of iio-test-format.
To run these tests, add the following to .kunitconfig
$ cat .kunitconfig
CONFIG_IIO=y
CONFIG_IIO_RESCALE_KUNIT_TEST=y
CONFIG_KUNIT=y
Then run:
$ ./tools/testing/kunit/kunit.py run --kunitconfig .kunitconfig
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220213025739.2561834-7-liambeguin@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The IIO core provides a function to do formatting of fixedpoint numbers.
In the past there have been some issues with the implementation of the
function where for example negative numbers were not handled correctly.
Introduce a basic unit test based on kunit that tests the function and
ensures that the generated output matches the expected output.
This gives us some confidence that future modifications to the function
implementation will not break ABI compatibility.
To run the unit tests follow the kunit documentation and add
CONFIG_IIO=y
CONFIG_IIO_TEST_FORMAT=y
to the .kunitconfig and run
> ./tools/testing/kunit/kunit.py run
Configuring KUnit Kernel ...
Building KUnit Kernel ...
Starting KUnit Kernel ...
============================================================
======== [PASSED] iio-format ========
[PASSED] iio_test_iio_format_value_integer
[PASSED] iio_test_iio_format_value_fixedpoint
[PASSED] iio_test_iio_format_value_fractional
[PASSED] iio_test_iio_format_value_fractional_log2
[PASSED] iio_test_iio_format_value_multiple
============================================================
Testing complete. 21 tests run. 0 failed. 0 crashed.
Elapsed time: 8.242s total, 0.001s configuring, 3.865s building, 0.000s running
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20201215191743.2725-3-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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