Commit 9e1eec9c authored by Fabio Baltieri's avatar Fabio Baltieri Committed by Fabio Baltieri
Browse files

test: add a test for sign extend 



Add tests for the sign extend functions.

Signed-off-by: default avatarFabio Baltieri <fabiobaltieri@google.com>
parent 5bb9b129

tests/unit/util/main.c

+41 −0
Original line number Diff line number Diff line
@@ -64,6 +64,47 @@ ZTEST(util, test_u8_to_dec) { 
		      "Length of converted value using 0 byte buffer isn't 0");

}



ZTEST(util, test_sign_extend) {

	uint8_t u8;

	uint16_t u16;

	uint32_t u32;



	u8 = 0x0f;

	zassert_equal(sign_extend(u8, 3), -1);

	zassert_equal(sign_extend(u8, 4), 0xf);



	u16 = 0xfff;

	zassert_equal(sign_extend(u16, 11), -1);

	zassert_equal(sign_extend(u16, 12), 0xfff);



	u32 = 0xfffffff;

	zassert_equal(sign_extend(u32, 27), -1);

	zassert_equal(sign_extend(u32, 28), 0xfffffff);

}



ZTEST(util, test_sign_extend_64) {

	uint8_t u8;

	uint16_t u16;

	uint32_t u32;

	uint64_t u64;



	u8 = 0x0f;

	zassert_equal(sign_extend_64(u8, 3), -1);

	zassert_equal(sign_extend_64(u8, 4), 0xf);



	u16 = 0xfff;

	zassert_equal(sign_extend_64(u16, 11), -1);

	zassert_equal(sign_extend_64(u16, 12), 0xfff);



	u32 = 0xfffffff;

	zassert_equal(sign_extend_64(u32, 27), -1);

	zassert_equal(sign_extend_64(u32, 28), 0xfffffff);



	u64 = 0xfffffffffffffff;

	zassert_equal(sign_extend_64(u64, 59), -1);

	zassert_equal(sign_extend_64(u64, 60), 0xfffffffffffffff);

}



ZTEST(util, test_COND_CODE_1) {

	#define TEST_DEFINE_1 1

	#define TEST_DEFINE_0 0

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