Test IIO formatting functions

modulename: iio-test-gts.ko

configname: CONFIG_IIO_GTS_KUNIT_TEST

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Test IIO formatting functions
In linux kernel since version 4.19.314 (release Date: 2024-05-17)  
build unit tests for the IIO light sensor gain-time-scale helpers.

For more information on KUnit and unit tests in general, please refer
to the KUnit documentation in Documentation/dev-tools/kunit/.

If unsure, say N. Keep in alphabetical order

source code:
selects
CONFIG_IIO_GTS_HELPER
CONFIG_TEST_KUNIT_DEVICE_HELPERS