src/lib/libc/tests/string/Makefile, branch main

libc/tests/string: add a more comprehensive unit test for strrchr()

2026-04-08T13:21:50+00:00

The unit tests are patterned after those for memrchr().
This catches the issue found in 293915.

PR:		293915
Reviewed by:	strajabot
Reported by:	safonov.paul@gmail.com
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D56037

lib/libc/tests/string: add test for strnlen()

2024-10-15T11:34:45+00:00

Tests for strnlen, checks alignments from up to 16 and buffer sizes up
to 64, also checks that passing SIZE_MAX as maxlen works, because it can
cause a wraparound error if strnlen is incorrect.

Reviewed by:	fuz, emaste (GSoC mentors), kib
Sponsored by:	Google LLC (GSoC 2024)
Differential Revision:	https://reviews.freebsd.org/D46275

Remove residual blank line at start of Makefile

2024-07-15T22:43:39+00:00

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

libc: Add memset test for int-to-char conversion

2024-07-13T13:07:49+00:00

Test case to check if an implementation of memset correctly
handles the value passed being wider than a byte

Approved by:	emaste
Reviewed By:	fuz (GSoC mentor), emaste
Sponsored by:	Google LLC (GSoC 2024)
Differential Revision: https://reviews.freebsd.org/D45738

lib/libc/tests/string: add memrchr unit tests

2023-12-25T13:59:58+00:00

The "values" test case is specifically crafted to detect the off-by-one
error previous discovered in the scalar strchrnul implementation.

Tested by:	developers@, exp-run
Approved by:	mjg
MFC after:	1 month
MFC to:		stable/14
PR:		275785
Differential Revision:	https://reviews.freebsd.org/D42925

lib/libc/tests/string: add unit tests for memccpy()

2023-12-25T13:59:40+00:00

Adapted from the strlcpy() unit tests.

Tested by:	developers@, exp-run
Approved by:	mjg
MFC after:	1 month
MFC to:		stable/14
PR:		275785

lib/libc/tests/string: add unit test for strlcpy

2023-12-25T13:56:02+00:00

A straightforward derivation from the stpncpy unit test.

Sponsored by:	The FreeBSD Foundation
Tested by:	developers@, exp-run
Approved by:	mjg
MFC after:	1 month
MFC to:		stable/14
PR:		275785
Differential Revision:	https://reviews.freebsd.org/D42863

lib/libc/tests/string: add unit tests for strncmp(3)

2023-12-25T13:55:08+00:00

These are patterned after the previously added (D41970)
strcmp tests, but are extended to check for various length
conditions.

Sponsored by:	The FreeBSD Foundation
Tested by:	developers@, exp-run
Approved by:	mjg
MFC after:	1 month
MFC to:		stable/14
PR:		275785
Differential Revision:	https://reviews.freebsd.org/D42122

lib/libc/tests/string: add extended unit tests for strcmp()

2023-11-14T17:37:06+00:00

This changeset add a new set of tests that comprehensively test strcmp() on
various alignments of the input. This made it easy to smoke out many
exciting new bugs in the new SSE strcmp() implementation from D41971.

MFC after:	1 week
Reviewed by:	ngie
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D41970

lib/libc/tests/string: expand memcmp test to bcmp, timingsafe_{b,mem}cmp

2023-10-02T19:25:31+00:00

The four functions more or less perform the same operation.
Reuse the same unit test with slight changes so we can cover
them all.  Constant-time operation is not verified for the
timingsafe_* functions.

Sponsored by:	The FreeBSD Foundation
Approved by:	ngie
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D41528