Add unit tests for %zd, %zu and %zx to verify size_t and ssize_t formatting matches system snprintf.
Signed-off-by: Michael Chang <[email protected]> Reviewed-by: Neal Gompa <[email protected]> Reviewed-by: Daniel Kiper <[email protected]> --- tests/printf_unit_test.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tests/printf_unit_test.c b/tests/printf_unit_test.c index 098c29fd9..f2de187b0 100644 --- a/tests/printf_unit_test.c +++ b/tests/printf_unit_test.c @@ -20,6 +20,7 @@ #include <string.h> #include <grub/test.h> #include <grub/misc.h> +#include <stdint.h> #define MSG "printf test failed: %s, %s", real, expected @@ -73,6 +74,15 @@ printf_test (void) grub_snprintf (real, sizeof (real), "%%0%dd ", 1); snprintf (expected, sizeof (expected), "%%0%dd ", 1); grub_test_assert (strcmp (real, expected) == 0, MSG); + grub_snprintf (real, sizeof (real), "%zd %zd %zd", (ssize_t) -1, (ssize_t) (SIZE_MAX >> 1), (ssize_t) 42); + snprintf (expected, sizeof (expected), "%zd %zd %zd", (ssize_t) -1, (ssize_t) (SIZE_MAX >> 1), (ssize_t) 42); + grub_test_assert (strcmp (real, expected) == 0, MSG); + grub_snprintf (real, sizeof (real), "%zu %zu %zu", (size_t) 0, (size_t) SIZE_MAX, (size_t) 42); + snprintf (expected, sizeof (expected), "%zu %zu %zu", (size_t) 0, (size_t) SIZE_MAX, (size_t) 42); + grub_test_assert (strcmp (real, expected) == 0, MSG); + grub_snprintf (real, sizeof (real), "%zx %zx %zx", (ssize_t) (SIZE_MAX >> 1), (size_t) SIZE_MAX, (size_t) 0xdeadbeefU); + snprintf (expected, sizeof (expected), "%zx %zx %zx", (ssize_t) (SIZE_MAX >> 1), (size_t) SIZE_MAX, (size_t) 0xdeadbeefU); + grub_test_assert (strcmp (real, expected) == 0, MSG); } GRUB_UNIT_TEST ("printf_unit_test", printf_test); -- 2.51.0 _______________________________________________ Grub-devel mailing list [email protected] https://lists.gnu.org/mailman/listinfo/grub-devel
