func basicGC(t *testing.T, bs blockstore.Blockstore, pins pin.ManualPinner) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel() // in case error occurs during operation
keychan, err := bs.AllKeysChan(ctx)
if err != nil {
t.Fatal(err)
}
for k := range keychan { // rely on AllKeysChan to close chan
if !pins.IsPinned(k) {
err := bs.DeleteBlock(k)
if err != nil {
t.Fatal(err)
}
}
}
}
