tests: unit: util: add test_byteswp

	zassert_mem_equal(buf, expected4, sizeof(expected4), "Overlapping memory copy failed");

}

ZTEST(util, test_byteswp)

{

	uint8_t a1 = 0xAAU;

	uint8_t b1 = 0x55U;

	uint32_t a2 = 0x12345678U;

	uint32_t b2 = 0xABCDEF00U;

	byteswp(&a1, &b1, sizeof(a1));

	zassert_equal(a1, 0x55U, "Failed to swap single bytes");

	zassert_equal(b1, 0xAAU, "Failed to swap single bytes");

	byteswp(&a1, &b1, 0);

	zassert_equal(a1, 0x55U, "Zero size swap should not modify values");

	zassert_equal(b1, 0xAAU, "Zero size swap should not modify values");

	byteswp(&a2, &b2, sizeof(a2));

	zassert_equal(a2, 0xABCDEF00U, "Failed to swap multiple bytes");

	zassert_equal(b2, 0x12345678U, "Failed to swap multiple bytes");

}

ZTEST(util, test_mem_xor_n)

{

	const size_t max_len = 128;