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Merge tag 'linux_kselftest-kunit-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

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Pull kunit updates from Shuah Khan:

 - a new int_pow test suite

 - documentation update to clarify filename best practices

 - kernel-doc fix for EXPORT_SYMBOL_IF_KUNIT

 - change to build compile_commands.json automatically instead of
   requiring a manual build

* tag 'linux_kselftest-kunit-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  lib/math: Add int_pow test suite
  kunit: tool: Build compile_commands.json
  kunit: Fix kernel-doc for EXPORT_SYMBOL_IF_KUNIT
  Documentation: KUnit: Update filename best practices
This commit is contained in:
Linus Torvalds
2024-09-17 16:52:24 +02:00
parent 32b72debef 7fcc9b5321
commit 194fcd20eb
7 changed files with 95 additions and 10 deletions
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Documentation/dev-tools/kunit/style.rst
+20 -9
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@@ -188,15 +188,26 @@ For example, a Kconfig entry might look like:
Test File and Module Names
==========================
KUnit tests can often be compiled as a module. These modules should be named
after the test suite, followed by ``_test``. If this is likely to conflict with
non-KUnit tests, the suffix ``_kunit`` can also be used.
KUnit tests are often compiled as a separate module. To avoid conflicting
with regular modules, KUnit modules should be named after the test suite,
followed by ``_kunit`` (e.g. if "foobar" is the core module, then
"foobar_kunit" is the KUnit test module).
The easiest way of achieving this is to name the file containing the test suite
``<suite>_test.c`` (or, as above, ``<suite>_kunit.c``). This file should be
placed next to the code under test.
Test source files, whether compiled as a separate module or an
``#include`` in another source file, are best kept in a ``tests/``
subdirectory to not conflict with other source files (e.g. for
tab-completion).
Note that the ``_test`` suffix has also been used in some existing
tests. The ``_kunit`` suffix is preferred, as it makes the distinction
between KUnit and non-KUnit tests clearer.
So for the common case, name the file containing the test suite
``tests/<suite>_kunit.c``. The ``tests`` directory should be placed at
the same level as the code under test. For example, tests for
``lib/string.c`` live in ``lib/tests/string_kunit.c``.
If the suite name contains some or all of the name of the test's parent
directory, it may make sense to modify the source filename to reduce redundancy.
For example, a ``foo_firmware`` suite could be in the ``foo/firmware_test.c``
file.
directory, it may make sense to modify the source filename to reduce
redundancy. For example, a ``foo_firmware`` suite could be in the
``foo/tests/firmware_kunit.c`` file.