Commit e289b488 authored by Vincent Mailhol's avatar Vincent Mailhol Committed by Yury Norov
Browse files

test_bits: add tests for BIT_U*() 



Add some additional tests in lib/tests/test_bits.c to cover the
expected results of the fixed type BIT_U*() macros.

Signed-off-by: default avatarVincent Mailhol <mailhol.vincent@wanadoo.fr>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarYury Norov <yury.norov@gmail.com>
parent 0405eef6

lib/tests/test_bits.c

+10 −0
Original line number Diff line number Diff line
@@ -9,6 +9,16 @@ 


#define assert_type(t, x) _Generic(x, t: x, default: 0)



static_assert(assert_type(u8, BIT_U8(0)) == 1u);

static_assert(assert_type(u16, BIT_U16(0)) == 1u);

static_assert(assert_type(u32, BIT_U32(0)) == 1u);

static_assert(assert_type(u64, BIT_U64(0)) == 1ull);



static_assert(assert_type(u8, BIT_U8(7)) == 0x80u);

static_assert(assert_type(u16, BIT_U16(15)) == 0x8000u);

static_assert(assert_type(u32, BIT_U32(31)) == 0x80000000u);

static_assert(assert_type(u64, BIT_U64(63)) == 0x8000000000000000ull);



static_assert(assert_type(unsigned long, GENMASK(31, 0)) == U32_MAX);

static_assert(assert_type(unsigned long long, GENMASK_ULL(63, 0)) == U64_MAX);

static_assert(assert_type(u8, GENMASK_U8(7, 0)) == U8_MAX);