tests/lib/uuid-test.c

   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. */
   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.*/
  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
  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
  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 }