Class DtorCounter

test/objectwrap_removewrap.cc:8–14

static int dtor_called = 0;

class DtorCounter {
 public:
  ~DtorCounter() {
    assert(dtor_called == 0);
    dtor_called++;
  }
};

Napi::Value GetDtorCalled(const Napi::CallbackInfo& info) {
  return Napi::Number::New(info.Env(), dtor_called);