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lib/tests/kfifo_kunit.c: add tests for the kfifo structure

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Add KUnit tests for the kfifo data structure.
They test the vast majority of macros defined in the kfifo
header (include/linux/kfifo.h).

These are inspired by the existing tests for the doubly
linked list in lib/tests/list-test.c (previously at lib/list-test.c) [1].

Note that this patch depends on the patch that moves the KUnit tests on
lib/ into lib/tests/ [2].

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/lib/list-test.c?h=v6.11-rc6
[2] https://lore.kernel.org/all/20240720181025.work.002-kees@kernel.org/

Signed-off-by: Diego Vieira <diego.daniel.professional@gmail.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Link: https://lore.kernel.org/r/20241202075545.3648096-5-davidgow@google.com
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Diego Vieira
2024-12-02 15:55:41 +08:00
committed by Kees Cook
parent db6fe4d61e
commit 4d557cb499
3 changed files with 239 additions and 0 deletions
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14
lib/Kconfig.debug
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@@ -2691,6 +2691,20 @@ config SYSCTL_KUNIT_TEST
If unsure, say N.
config KFIFO_KUNIT_TEST
tristate "KUnit Test for the generic kernel FIFO implementation" if !KUNIT_ALL_TESTS
depends on KUNIT
default KUNIT_ALL_TESTS
help
This builds the generic FIFO implementation KUnit test suite.
It tests that the API and basic functionality of the kfifo type
and associated macros.
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.
config LIST_KUNIT_TEST
tristate "KUnit Test for Kernel Linked-list structures" if !KUNIT_ALL_TESTS
depends on KUNIT