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printf: add tests for generic FourCCs

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This patch adds support for kunit tests of generic 32-bit FourCCs added to
vsprintf.

Acked-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/r/PN3PR01MB95973AF4F6262B2D1996FB25B8B52@PN3PR01MB9597.INDPRD01.PROD.OUTLOOK.COM
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Aditya Garg 2025-04-08 12:18:32 +05:30 committed by Alyssa Rosenzweig
parent 1938479b27
commit 403ff8fd2d
1 changed files with 32 additions and 7 deletions
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39
lib/tests/printf_kunit.c
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@ -701,21 +701,46 @@ static void fwnode_pointer(struct kunit *kunittest)
software_node_unregister_node_group(group);
}
struct fourcc_struct {
u32 code;
const char *str;
};
static void fourcc_pointer_test(struct kunit *kunittest, const struct fourcc_struct *fc,
size_t n, const char *fmt)
{
size_t i;
for (i = 0; i < n; i++)
test(fc[i].str, fmt, &fc[i].code);
}
static void fourcc_pointer(struct kunit *kunittest)
{
struct {
u32 code;
char *str;
} const try[] = {
static const struct fourcc_struct try_cc[] = {
{ 0x3231564e, "NV12 little-endian (0x3231564e)", },
{ 0xb231564e, "NV12 big-endian (0xb231564e)", },
{ 0x10111213, ".... little-endian (0x10111213)", },
{ 0x20303159, "Y10 little-endian (0x20303159)", },
};
unsigned int i;
static const struct fourcc_struct try_ch[] = {
{ 0x41424344, "ABCD (0x41424344)", },
};
static const struct fourcc_struct try_cn[] = {
{ 0x41424344, "DCBA (0x44434241)", },
};
static const struct fourcc_struct try_cl[] = {
{ (__force u32)cpu_to_le32(0x41424344), "ABCD (0x41424344)", },
};
static const struct fourcc_struct try_cb[] = {
{ (__force u32)cpu_to_be32(0x41424344), "ABCD (0x41424344)", },
};
for (i = 0; i < ARRAY_SIZE(try); i++)
test(try[i].str, "%p4cc", &try[i].code);
fourcc_pointer_test(kunittest, try_cc, ARRAY_SIZE(try_cc), "%p4cc");
fourcc_pointer_test(kunittest, try_ch, ARRAY_SIZE(try_ch), "%p4ch");
fourcc_pointer_test(kunittest, try_cn, ARRAY_SIZE(try_cn), "%p4cn");
fourcc_pointer_test(kunittest, try_cl, ARRAY_SIZE(try_cl), "%p4cl");
fourcc_pointer_test(kunittest, try_cb, ARRAY_SIZE(try_cb), "%p4cb");
}
static void