//go:build nocover package swarm import ( "context" "crypto/rand" "net" "syscall" "testing" "time" "github.com/libp2p/go-libp2p/core/crypto" "github.com/libp2p/go-libp2p/core/network" ma "github.com/multiformats/go-multiaddr" mrand "math/rand" "github.com/stretchr/testify/require" ) func BenchmarkMetricsConnOpen(b *testing.B) { b.ReportAllocs() quicConnState := network.ConnectionState{Transport: "quic"} tcpConnState := network.ConnectionState{ StreamMultiplexer: "yamux", Security: "tls", Transport: "tcp", } _, pub, err := crypto.GenerateEd25519Key(rand.Reader) require.NoError(b, err) quicAddr := ma.StringCast("/ip4/1.2.3.4/udp/1/quic-v1") tcpAddr := ma.StringCast("/ip4/1.2.3.4/tcp/1/") tr := NewMetricsTracer() for i := 0; i < b.N; i++ { switch i % 2 { case 0: tr.OpenedConnection(network.DirInbound, pub, quicConnState, quicAddr) case 1: tr.OpenedConnection(network.DirInbound, pub, tcpConnState, tcpAddr) } } } func randItem[T any](items []T) T { return items[mrand.Intn(len(items))] } func TestMetricsNoAllocNoCover(t *testing.T) { mt := NewMetricsTracer() connections := []network.ConnectionState{ {StreamMultiplexer: "yamux", Security: "tls", Transport: "tcp", UsedEarlyMuxerNegotiation: true}, {StreamMultiplexer: "yamux", Security: "noise", Transport: "tcp", UsedEarlyMuxerNegotiation: false}, {StreamMultiplexer: "", Security: "", Transport: "quic"}, {StreamMultiplexer: "another-yamux", Security: "noise", Transport: "tcp"}, } directions := []network.Direction{network.DirInbound, network.DirOutbound} _, pub1, err := crypto.GenerateEd25519Key(rand.Reader) require.NoError(t, err) _, pub2, err := crypto.GenerateEd25519Key(rand.Reader) require.NoError(t, err) _, pub3, err := crypto.GenerateEd25519Key(rand.Reader) require.NoError(t, err) keys := []crypto.PubKey{pub1, pub2, pub3} errors := []error{ context.Canceled, context.DeadlineExceeded, &net.OpError{Err: syscall.ETIMEDOUT}, } addrs := []ma.Multiaddr{ ma.StringCast("/ip4/1.2.3.4/tcp/1"), ma.StringCast("/ip4/1.2.3.4/tcp/2"), ma.StringCast("/ip4/1.2.3.4/udp/2345"), } bhfNames := []string{"udp", "ipv6", "tcp", "icmp"} bhfState := []blackHoleState{blackHoleStateAllowed, blackHoleStateBlocked} tests := map[string]func(){ "OpenedConnection": func() { mt.OpenedConnection(randItem(directions), randItem(keys), randItem(connections), randItem(addrs)) }, "ClosedConnection": func() { mt.ClosedConnection(randItem(directions), time.Duration(mrand.Intn(100))*time.Second, randItem(connections), randItem(addrs)) }, "CompletedHandshake": func() { mt.CompletedHandshake(time.Duration(mrand.Intn(100))*time.Second, randItem(connections), randItem(addrs)) }, "FailedDialing": func() { mt.FailedDialing(randItem(addrs), randItem(errors), randItem(errors)) }, "DialCompleted": func() { mt.DialCompleted(mrand.Intn(2) == 1, mrand.Intn(10)) }, "DialRankingDelay": func() { mt.DialRankingDelay(time.Duration(mrand.Intn(1e10))) }, "UpdatedBlackHoleFilterState": func() { mt.UpdatedBlackHoleFilterState( randItem(bhfNames), randItem(bhfState), mrand.Intn(100), mrand.Float64(), ) }, } for method, f := range tests { allocs := testing.AllocsPerRun(1000, f) if allocs > 0 { t.Fatalf("Alloc Test: %s, got: %0.2f, expected: 0 allocs", method, allocs) } } }