}
	if runtime.GetPinCounter(addr) != nil {
		t.Fatal("pin counter should not exist")
	}
	pinner.Unpin()
	if runtime.IsPinned(addr) {
		t.Fatal("still marked as pinned")
	}
}

func TestPinnerPinKeepsAliveAndReleases(t *testing.T) {
	var pinner runtime.Pinner
	p := new(obj)
	done := make(chan struct{})
	runtime.SetFinalizer(p, func(any) {
		done <- struct{}{}
	})
	pinner.Pin(p)
	p = nil
	runtime.GC()