package htlcswitch import ( "reflect" "testing" "time" "github.com/lightningnetwork/lnd/lnwire" ) // TestWaitingQueueThreadSafety test the thread safety properties of the // waiting queue, by executing methods in separate goroutines which operates // with the same data. func TestWaitingQueueThreadSafety(t *testing.T) { t.Parallel() q := newPacketQueue() q.Start() defer q.Stop() const numPkts = 1000 a := make([]lnwire.MilliSatoshi, numPkts) for i := 0; i < numPkts; i++ { a[i] = lnwire.MilliSatoshi(i) q.AddPkt(&htlcPacket{ amount: lnwire.MilliSatoshi(i), htlc: &lnwire.UpdateAddHTLC{}, }) } var b []lnwire.MilliSatoshi for i := 0; i < numPkts; i++ { select { case packet := <-q.outgoingPkts: b = append(b, packet.amount) case <-time.After(2 * time.Second): t.Fatal("timeout") } } if !reflect.DeepEqual(b, a) { t.Fatal("wrong order of the objects") } }