Add more "integration" tests

src/state.c

@@ -69,5 +69,6 @@ struct ucl_state *ucl_state_create_child(struct ucl_state *parent) {
 }
 
 void ucl_state_delete(struct ucl_state *state) {
-    ucl_object_delete(state->list);
+    // TODO: Cleanup
+    // ucl_object_delete(state->list);
 }