root/lib/common/tests/strings/pcmk__str_update_test.c

/* */

DEFINITIONS

1. update_null
2. update_same
3. update_different
4. main

   1 /*
   2  * Copyright 2022 the Pacemaker project contributors
   3  *
   4  * The version control history for this file may have further details.
   5  *
   6  * This source code is licensed under the GNU Lesser General Public License
   7  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
   8  */
   9 
  10 #include <crm_internal.h>
  11 
  12 #include <stdarg.h>
  13 #include <stddef.h>
  14 #include <stdint.h>
  15 #include <setjmp.h>
  16 #include <cmocka.h>
  17 
  18 static void
  19 update_null(void **state) {
     /*  */
  20     char *str = NULL;
  21 
  22     // These just make sure they don't crash
  23     pcmk__str_update(NULL, NULL);
  24     pcmk__str_update(NULL, "value");
  25 
  26     // Update an already NULL string to NULL
  27     pcmk__str_update(&str, NULL);
  28     assert_null(str);
  29 
  30     // Update an already allocated string to NULL
  31     str = strdup("hello");
  32     pcmk__str_update(&str, NULL);
  33     assert_null(str);
  34 }
  35 
  36 static void
  37 update_same(void **state) {
     /*  */
  38     char *str = NULL;
  39     char *saved = NULL;
  40 
  41     str = strdup("hello");
  42     saved = str;
  43     pcmk__str_update(&str, "hello");
  44     assert_ptr_equal(saved, str); // No free and reallocation
  45     free(str);
  46 }
  47 
  48 static void
  49 update_different(void **state) {
     /*  */
  50     char *str = NULL;
  51 
  52     str = strdup("hello");
  53     pcmk__str_update(&str, "world");
  54     assert_string_equal(str, "world");
  55     free(str);
  56 }
  57 
  58 int
  59 main(int argc, char **argv)
     /*  */
  60 {
  61     const struct CMUnitTest tests[] = {
  62         cmocka_unit_test(update_null),
  63         cmocka_unit_test(update_same),
  64         cmocka_unit_test(update_different),
  65     };
  66 
  67     cmocka_set_message_output(CM_OUTPUT_TAP);
  68     return cmocka_run_group_tests(tests, NULL, NULL);
  69 }

/* */