xref: /aosp_15_r20/external/coreboot/tests/lib/uuid-test.c (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #include <tests/test.h>
4 #include <uuid.h>
5 
6 /* This test checks if parse_uuid() correctly parses UUID strings with correct format.
7    lib/uuid does not check UUID version nor variant.
8    If that changes tests should be updated as appropriate. */
test_parse_uuid_correct(void ** state)9 static void test_parse_uuid_correct(void **state)
10 {
11 	/* lib/uuid does not check UUID version nor variant.
12 	   If that changes tests should be updated as appropriate. */
13 	uint8_t uuid_buf[UUID_LEN] = { 0 };
14 	const char *uuid_correct = "00112233-4455-6677-8899-aabbccddeeff";
15 	const uint8_t uuid_correct_bin[UUID_LEN] = {
16 		0x33, 0x22, 0x11, 0x00, 0x55, 0x44, 0x77, 0x66,
17 		0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
18 	};
19 	const char *uuid_zereos = "00000000-0000-0000-0000-000000000000";
20 	const uint8_t uuid_zeros_bin[UUID_LEN] = { 0 };
21 	const char *uuid_ff = "ffffffff-ffff-ffff-ffff-ffffffffffff";
22 	const uint8_t uuid_ff_bin[UUID_LEN] = {
23 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
24 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
25 	};
26 
27 	assert_int_equal(0, parse_uuid(uuid_buf, uuid_correct));
28 	assert_memory_equal(uuid_correct_bin, uuid_buf, UUID_LEN);
29 
30 	assert_int_equal(0, parse_uuid(uuid_buf, uuid_zereos));
31 	assert_memory_equal(uuid_zeros_bin, uuid_buf, UUID_LEN);
32 
33 	assert_int_equal(0, parse_uuid(uuid_buf, uuid_ff));
34 	assert_memory_equal(uuid_ff_bin, uuid_buf, UUID_LEN);
35 }
36 
37 /* This test validates parse_uuid() feeding it with incorrectly-formatted UUID strings.
38    No version/variant tests are performed due to lack of handling these properties
39    by lib/uuid. If that changes tests should be updated as appropriate.*/
test_parse_uuid_incorrect(void ** state)40 static void test_parse_uuid_incorrect(void **state)
41 {
42 	uint8_t uuid_buf[UUID_LEN] = { 0 };
43 	/* First separator at incorrect index */
44 	const char *uuid_incorrect_1 = "ab372d0-34cc1-1337-688b-2211337777ee";
45 	/* Incorrect characters */
46 	const char *uuid_incorrect_2 = "abbce711-5@51-7777-ffff-ahchbh999911";
47 	/* Too long uuid string */
48 	const char *uuid_incorrect_3 = "a7a38502-7465-9cbd-98ea-73003906dad5dd";
49 	/* Too short uuid string */
50 	const char *uuid_incorrect_4 = "72abd839-7109-64bd-cfef-a8266";
51 
52 	assert_int_equal(-1, parse_uuid(uuid_buf, uuid_incorrect_1));
53 	assert_int_equal(-1, parse_uuid(uuid_buf, uuid_incorrect_2));
54 	assert_int_equal(-1, parse_uuid(uuid_buf, uuid_incorrect_3));
55 	assert_int_equal(-1, parse_uuid(uuid_buf, uuid_incorrect_4));
56 }
57 
test_guid(void ** state)58 static void test_guid(void **state)
59 {
60 	guid_t guid = GUID_INIT(0x1F4D66BB, 0xDEAD, 0xBEEF,
61 				0x08, 0xAB, 0x21, 0x37, 0xBB, 0x07, 0xDD, 0x4C);
62 	guid_t guid_copy;
63 	const guid_t guid_bin = { {
64 			0xBB, 0x66, 0x4D, 0x1F,
65 			0xAD, 0xDE,
66 			0xEF, 0xBE,
67 			0x08, 0xAB, 0x21, 0x37, 0xBB, 0x07, 0xDD, 0x4C
68 	} };
69 
70 	/* GUID produced using GUID_INIT() macro should be identical to guid_bin
71 	   Check it by comparing memory directly and using provided comparison function */
72 	assert_memory_equal(guid.b, guid_bin.b, UUID_LEN);
73 	assert_int_equal(0, guidcmp(&guid, &guid_bin));
74 
75 	/* Copy GUID and compare it with original */
76 	guidcpy(&guid_copy, &guid);
77 	assert_memory_equal(guid.b, guid_copy.b, UUID_LEN);
78 	assert_int_equal(0, guidcmp(&guid, &guid_copy));
79 
80 	/* Binary negate bits of one of GUIDs bytes.
81 	   Expect comparison to fail as GUIDs should differ */
82 	guid_copy.b[7] = ~guid_copy.b[7];
83 	assert_int_not_equal(0, guidcmp(&guid, &guid_copy));
84 }
85 
main(void)86 int main(void)
87 {
88 	const struct CMUnitTest tests[] = {
89 		cmocka_unit_test(test_parse_uuid_correct),
90 		cmocka_unit_test(test_parse_uuid_incorrect),
91 		cmocka_unit_test(test_guid),
92 	};
93 
94 	return cb_run_group_tests(tests, NULL, NULL);
95 }
96