cJSON* cJSONUtils_MergePatch(cJSON *target, cJSON *patch)
{
if (!patch || (patch->type != cJSON_Object))
{
/* scalar value, array or NULL, just duplicate */
cJSON_Delete(target);
return cJSON_Duplicate(patch, 1);
}
if (!target || (target->type != cJSON_Object))
{
cJSON_Delete(target);
target = cJSON_CreateObject();
}
patch = patch->child;
while (patch)
{
if (patch->type == cJSON_NULL)
{
/* NULL is the indicator to remove a value, see RFC7396 */
cJSON_DeleteItemFromObject(target, patch->string);
}
else
{
cJSON *replaceme = cJSON_DetachItemFromObject(target, patch->string);
cJSON_AddItemToObject(target, patch->string, cJSONUtils_MergePatch(replaceme, patch));
}
patch = patch->next;
}
return target;
}
static void cjson_utils_functions_shouldnt_crash_with_null_pointers(void)
{
cJSON *item = cJSON_CreateString("item");
TEST_ASSERT_NOT_NULL(item);
TEST_ASSERT_NULL(cJSONUtils_GetPointer(item, NULL));
TEST_ASSERT_NULL(cJSONUtils_GetPointer(NULL, "pointer"));
TEST_ASSERT_NULL(cJSONUtils_GetPointerCaseSensitive(NULL, "pointer"));
TEST_ASSERT_NULL(cJSONUtils_GetPointerCaseSensitive(item, NULL));
TEST_ASSERT_NULL(cJSONUtils_GeneratePatches(item, NULL));
TEST_ASSERT_NULL(cJSONUtils_GeneratePatches(NULL, item));
TEST_ASSERT_NULL(cJSONUtils_GeneratePatchesCaseSensitive(item, NULL));
TEST_ASSERT_NULL(cJSONUtils_GeneratePatchesCaseSensitive(NULL, item));
cJSONUtils_AddPatchToArray(item, "path", "add", NULL);
cJSONUtils_AddPatchToArray(item, "path", NULL, item);
cJSONUtils_AddPatchToArray(item, NULL, "add", item);
cJSONUtils_AddPatchToArray(NULL, "path", "add", item);
cJSONUtils_ApplyPatches(item, NULL);
cJSONUtils_ApplyPatches(NULL, item);
cJSONUtils_ApplyPatchesCaseSensitive(item, NULL);
cJSONUtils_ApplyPatchesCaseSensitive(NULL, item);
TEST_ASSERT_NULL(cJSONUtils_MergePatch(item, NULL));
item = cJSON_CreateString("item");
TEST_ASSERT_NULL(cJSONUtils_MergePatchCaseSensitive(item, NULL));
item = cJSON_CreateString("item");
/* these calls are actually valid */
/* cJSONUtils_MergePatch(NULL, item); */
/* cJSONUtils_MergePatchCaseSensitive(NULL, item);*/
/* cJSONUtils_GenerateMergePatch(item, NULL); */
/* cJSONUtils_GenerateMergePatch(NULL, item); */
/* cJSONUtils_GenerateMergePatchCaseSensitive(item, NULL); */
/* cJSONUtils_GenerateMergePatchCaseSensitive(NULL, item); */
TEST_ASSERT_NULL(cJSONUtils_FindPointerFromObjectTo(item, NULL));
TEST_ASSERT_NULL(cJSONUtils_FindPointerFromObjectTo(NULL, item));
cJSONUtils_SortObject(NULL);
cJSONUtils_SortObjectCaseSensitive(NULL);
cJSON_Delete(item);
}
