Fix tests

test/asset/test_asset.c

@@ -438,6 +438,7 @@ static void test_requireLoaded_propagates_error(void **state) {
 // ============================================================
 
 int main(void) {
+  assertInit();
   const struct CMUnitTest tests[] = {
     // getEntry
     cmocka_unit_test_setup_teardown(test_getEntry_creates_new, asset_setup, asset_teardown),

test/asset/test_assetjsonloader.c

@@ -212,6 +212,7 @@ static void test_json_buffer_cleared_after_load(void **state) {
 // ============================================================
 
 int main(void) {
+  assertInit();
   const struct CMUnitTest tests[] = {
     cmocka_unit_test_setup_teardown(test_json_valid_loads, zip_setup, zip_teardown),
     cmocka_unit_test_setup_teardown(test_json_parse_error, zip_setup, zip_teardown),

test/asset/test_assettilesetloader.c

@@ -342,6 +342,7 @@ static void test_tileset_missing_file(void **state) {
 // ============================================================
 
 int main(void) {
+  assertInit();
   const struct CMUnitTest tests[] = {
     cmocka_unit_test_setup_teardown(test_tileset_valid_loads, zip_setup, zip_teardown),
     cmocka_unit_test_setup_teardown(test_tileset_data_cleared_after_load, zip_setup, zip_teardown),