summaryrefslogtreecommitdiffstats
path: root/vendor/github.com/hashicorp/memberlist/net_test.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/github.com/hashicorp/memberlist/net_test.go')
-rw-r--r--vendor/github.com/hashicorp/memberlist/net_test.go787
1 files changed, 787 insertions, 0 deletions
diff --git a/vendor/github.com/hashicorp/memberlist/net_test.go b/vendor/github.com/hashicorp/memberlist/net_test.go
new file mode 100644
index 000000000..80d3ebb36
--- /dev/null
+++ b/vendor/github.com/hashicorp/memberlist/net_test.go
@@ -0,0 +1,787 @@
+package memberlist
+
+import (
+ "bytes"
+ "encoding/binary"
+ "fmt"
+ "io"
+ "log"
+ "net"
+ "reflect"
+ "strings"
+ "testing"
+ "time"
+
+ "github.com/hashicorp/go-msgpack/codec"
+)
+
+// As a regression we left this test very low-level and network-ey, even after
+// we abstracted the transport. We added some basic network-free transport tests
+// in transport_test.go to prove that we didn't hard code some network stuff
+// outside of NetTransport.
+
+func TestHandleCompoundPing(t *testing.T) {
+ m := GetMemberlist(t)
+ m.config.EnableCompression = false
+ defer m.Shutdown()
+
+ var udp *net.UDPConn
+ for port := 60000; port < 61000; port++ {
+ udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
+ udpLn, err := net.ListenPacket("udp", udpAddr)
+ if err == nil {
+ udp = udpLn.(*net.UDPConn)
+ break
+ }
+ }
+
+ if udp == nil {
+ t.Fatalf("no udp listener")
+ }
+
+ // Encode a ping
+ ping := ping{SeqNo: 42}
+ buf, err := encode(pingMsg, ping)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ // Make a compound message
+ compound := makeCompoundMessage([][]byte{buf.Bytes(), buf.Bytes(), buf.Bytes()})
+
+ // Send compound version
+ addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
+ udp.WriteTo(compound.Bytes(), addr)
+
+ // Wait for responses
+ doneCh := make(chan struct{}, 1)
+ go func() {
+ select {
+ case <-doneCh:
+ case <-time.After(2 * time.Second):
+ panic("timeout")
+ }
+ }()
+
+ for i := 0; i < 3; i++ {
+ in := make([]byte, 1500)
+ n, _, err := udp.ReadFrom(in)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ in = in[0:n]
+
+ msgType := messageType(in[0])
+ if msgType != ackRespMsg {
+ t.Fatalf("bad response %v", in)
+ }
+
+ var ack ackResp
+ if err := decode(in[1:], &ack); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ if ack.SeqNo != 42 {
+ t.Fatalf("bad sequence no")
+ }
+ }
+
+ doneCh <- struct{}{}
+}
+
+func TestHandlePing(t *testing.T) {
+ m := GetMemberlist(t)
+ m.config.EnableCompression = false
+ defer m.Shutdown()
+
+ var udp *net.UDPConn
+ for port := 60000; port < 61000; port++ {
+ udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
+ udpLn, err := net.ListenPacket("udp", udpAddr)
+ if err == nil {
+ udp = udpLn.(*net.UDPConn)
+ break
+ }
+ }
+
+ if udp == nil {
+ t.Fatalf("no udp listener")
+ }
+
+ // Encode a ping
+ ping := ping{SeqNo: 42}
+ buf, err := encode(pingMsg, ping)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ // Send
+ addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
+ udp.WriteTo(buf.Bytes(), addr)
+
+ // Wait for response
+ doneCh := make(chan struct{}, 1)
+ go func() {
+ select {
+ case <-doneCh:
+ case <-time.After(2 * time.Second):
+ panic("timeout")
+ }
+ }()
+
+ in := make([]byte, 1500)
+ n, _, err := udp.ReadFrom(in)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ in = in[0:n]
+
+ msgType := messageType(in[0])
+ if msgType != ackRespMsg {
+ t.Fatalf("bad response %v", in)
+ }
+
+ var ack ackResp
+ if err := decode(in[1:], &ack); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ if ack.SeqNo != 42 {
+ t.Fatalf("bad sequence no")
+ }
+
+ doneCh <- struct{}{}
+}
+
+func TestHandlePing_WrongNode(t *testing.T) {
+ m := GetMemberlist(t)
+ m.config.EnableCompression = false
+ defer m.Shutdown()
+
+ var udp *net.UDPConn
+ for port := 60000; port < 61000; port++ {
+ udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
+ udpLn, err := net.ListenPacket("udp", udpAddr)
+ if err == nil {
+ udp = udpLn.(*net.UDPConn)
+ break
+ }
+ }
+
+ if udp == nil {
+ t.Fatalf("no udp listener")
+ }
+
+ // Encode a ping, wrong node!
+ ping := ping{SeqNo: 42, Node: m.config.Name + "-bad"}
+ buf, err := encode(pingMsg, ping)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ // Send
+ addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
+ udp.WriteTo(buf.Bytes(), addr)
+
+ // Wait for response
+ udp.SetDeadline(time.Now().Add(50 * time.Millisecond))
+ in := make([]byte, 1500)
+ _, _, err = udp.ReadFrom(in)
+
+ // Should get an i/o timeout
+ if err == nil {
+ t.Fatalf("expected err %s", err)
+ }
+}
+
+func TestHandleIndirectPing(t *testing.T) {
+ m := GetMemberlist(t)
+ m.config.EnableCompression = false
+ defer m.Shutdown()
+
+ var udp *net.UDPConn
+ for port := 60000; port < 61000; port++ {
+ udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
+ udpLn, err := net.ListenPacket("udp", udpAddr)
+ if err == nil {
+ udp = udpLn.(*net.UDPConn)
+ break
+ }
+ }
+
+ if udp == nil {
+ t.Fatalf("no udp listener")
+ }
+
+ // Encode an indirect ping
+ ind := indirectPingReq{
+ SeqNo: 100,
+ Target: net.ParseIP(m.config.BindAddr),
+ Port: uint16(m.config.BindPort),
+ }
+ buf, err := encode(indirectPingMsg, &ind)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ // Send
+ addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
+ udp.WriteTo(buf.Bytes(), addr)
+
+ // Wait for response
+ doneCh := make(chan struct{}, 1)
+ go func() {
+ select {
+ case <-doneCh:
+ case <-time.After(2 * time.Second):
+ panic("timeout")
+ }
+ }()
+
+ in := make([]byte, 1500)
+ n, _, err := udp.ReadFrom(in)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ in = in[0:n]
+
+ msgType := messageType(in[0])
+ if msgType != ackRespMsg {
+ t.Fatalf("bad response %v", in)
+ }
+
+ var ack ackResp
+ if err := decode(in[1:], &ack); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ if ack.SeqNo != 100 {
+ t.Fatalf("bad sequence no")
+ }
+
+ doneCh <- struct{}{}
+}
+
+func TestTCPPing(t *testing.T) {
+ var tcp *net.TCPListener
+ var tcpAddr *net.TCPAddr
+ for port := 60000; port < 61000; port++ {
+ tcpAddr = &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: port}
+ tcpLn, err := net.ListenTCP("tcp", tcpAddr)
+ if err == nil {
+ tcp = tcpLn
+ break
+ }
+ }
+ if tcp == nil {
+ t.Fatalf("no tcp listener")
+ }
+
+ // Note that tcp gets closed in the last test, so we avoid a deferred
+ // Close() call here.
+
+ m := GetMemberlist(t)
+ defer m.Shutdown()
+ pingTimeout := m.config.ProbeInterval
+ pingTimeMax := m.config.ProbeInterval + 10*time.Millisecond
+
+ // Do a normal round trip.
+ pingOut := ping{SeqNo: 23, Node: "mongo"}
+ go func() {
+ tcp.SetDeadline(time.Now().Add(pingTimeMax))
+ conn, err := tcp.AcceptTCP()
+ if err != nil {
+ t.Fatalf("failed to connect: %s", err)
+ }
+ defer conn.Close()
+
+ msgType, _, dec, err := m.readStream(conn)
+ if err != nil {
+ t.Fatalf("failed to read ping: %s", err)
+ }
+
+ if msgType != pingMsg {
+ t.Fatalf("expecting ping, got message type (%d)", msgType)
+ }
+
+ var pingIn ping
+ if err := dec.Decode(&pingIn); err != nil {
+ t.Fatalf("failed to decode ping: %s", err)
+ }
+
+ if pingIn.SeqNo != pingOut.SeqNo {
+ t.Fatalf("sequence number isn't correct (%d) vs (%d)", pingIn.SeqNo, pingOut.SeqNo)
+ }
+
+ if pingIn.Node != pingOut.Node {
+ t.Fatalf("node name isn't correct (%s) vs (%s)", pingIn.Node, pingOut.Node)
+ }
+
+ ack := ackResp{pingIn.SeqNo, nil}
+ out, err := encode(ackRespMsg, &ack)
+ if err != nil {
+ t.Fatalf("failed to encode ack: %s", err)
+ }
+
+ err = m.rawSendMsgStream(conn, out.Bytes())
+ if err != nil {
+ t.Fatalf("failed to send ack: %s", err)
+ }
+ }()
+ deadline := time.Now().Add(pingTimeout)
+ didContact, err := m.sendPingAndWaitForAck(tcpAddr.String(), pingOut, deadline)
+ if err != nil {
+ t.Fatalf("error trying to ping: %s", err)
+ }
+ if !didContact {
+ t.Fatalf("expected successful ping")
+ }
+
+ // Make sure a mis-matched sequence number is caught.
+ go func() {
+ tcp.SetDeadline(time.Now().Add(pingTimeMax))
+ conn, err := tcp.AcceptTCP()
+ if err != nil {
+ t.Fatalf("failed to connect: %s", err)
+ }
+ defer conn.Close()
+
+ _, _, dec, err := m.readStream(conn)
+ if err != nil {
+ t.Fatalf("failed to read ping: %s", err)
+ }
+
+ var pingIn ping
+ if err := dec.Decode(&pingIn); err != nil {
+ t.Fatalf("failed to decode ping: %s", err)
+ }
+
+ ack := ackResp{pingIn.SeqNo + 1, nil}
+ out, err := encode(ackRespMsg, &ack)
+ if err != nil {
+ t.Fatalf("failed to encode ack: %s", err)
+ }
+
+ err = m.rawSendMsgStream(conn, out.Bytes())
+ if err != nil {
+ t.Fatalf("failed to send ack: %s", err)
+ }
+ }()
+ deadline = time.Now().Add(pingTimeout)
+ didContact, err = m.sendPingAndWaitForAck(tcpAddr.String(), pingOut, deadline)
+ if err == nil || !strings.Contains(err.Error(), "Sequence number") {
+ t.Fatalf("expected an error from mis-matched sequence number")
+ }
+ if didContact {
+ t.Fatalf("expected failed ping")
+ }
+
+ // Make sure an unexpected message type is handled gracefully.
+ go func() {
+ tcp.SetDeadline(time.Now().Add(pingTimeMax))
+ conn, err := tcp.AcceptTCP()
+ if err != nil {
+ t.Fatalf("failed to connect: %s", err)
+ }
+ defer conn.Close()
+
+ _, _, _, err = m.readStream(conn)
+ if err != nil {
+ t.Fatalf("failed to read ping: %s", err)
+ }
+
+ bogus := indirectPingReq{}
+ out, err := encode(indirectPingMsg, &bogus)
+ if err != nil {
+ t.Fatalf("failed to encode bogus msg: %s", err)
+ }
+
+ err = m.rawSendMsgStream(conn, out.Bytes())
+ if err != nil {
+ t.Fatalf("failed to send bogus msg: %s", err)
+ }
+ }()
+ deadline = time.Now().Add(pingTimeout)
+ didContact, err = m.sendPingAndWaitForAck(tcpAddr.String(), pingOut, deadline)
+ if err == nil || !strings.Contains(err.Error(), "Unexpected msgType") {
+ t.Fatalf("expected an error from bogus message")
+ }
+ if didContact {
+ t.Fatalf("expected failed ping")
+ }
+
+ // Make sure failed I/O respects the deadline. In this case we try the
+ // common case of the receiving node being totally down.
+ tcp.Close()
+ deadline = time.Now().Add(pingTimeout)
+ startPing := time.Now()
+ didContact, err = m.sendPingAndWaitForAck(tcpAddr.String(), pingOut, deadline)
+ pingTime := time.Now().Sub(startPing)
+ if err != nil {
+ t.Fatalf("expected no error during ping on closed socket, got: %s", err)
+ }
+ if didContact {
+ t.Fatalf("expected failed ping")
+ }
+ if pingTime > pingTimeMax {
+ t.Fatalf("took too long to fail ping, %9.6f", pingTime.Seconds())
+ }
+}
+
+func TestTCPPushPull(t *testing.T) {
+ m := GetMemberlist(t)
+ defer m.Shutdown()
+ m.nodes = append(m.nodes, &nodeState{
+ Node: Node{
+ Name: "Test 0",
+ Addr: net.ParseIP(m.config.BindAddr),
+ Port: uint16(m.config.BindPort),
+ },
+ Incarnation: 0,
+ State: stateSuspect,
+ StateChange: time.Now().Add(-1 * time.Second),
+ })
+
+ addr := fmt.Sprintf("%s:%d", m.config.BindAddr, m.config.BindPort)
+ conn, err := net.Dial("tcp", addr)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ defer conn.Close()
+
+ localNodes := make([]pushNodeState, 3)
+ localNodes[0].Name = "Test 0"
+ localNodes[0].Addr = net.ParseIP(m.config.BindAddr)
+ localNodes[0].Port = uint16(m.config.BindPort)
+ localNodes[0].Incarnation = 1
+ localNodes[0].State = stateAlive
+ localNodes[1].Name = "Test 1"
+ localNodes[1].Addr = net.ParseIP(m.config.BindAddr)
+ localNodes[1].Port = uint16(m.config.BindPort)
+ localNodes[1].Incarnation = 1
+ localNodes[1].State = stateAlive
+ localNodes[2].Name = "Test 2"
+ localNodes[2].Addr = net.ParseIP(m.config.BindAddr)
+ localNodes[2].Port = uint16(m.config.BindPort)
+ localNodes[2].Incarnation = 1
+ localNodes[2].State = stateAlive
+
+ // Send our node state
+ header := pushPullHeader{Nodes: 3}
+ hd := codec.MsgpackHandle{}
+ enc := codec.NewEncoder(conn, &hd)
+
+ // Send the push/pull indicator
+ conn.Write([]byte{byte(pushPullMsg)})
+
+ if err := enc.Encode(&header); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ for i := 0; i < header.Nodes; i++ {
+ if err := enc.Encode(&localNodes[i]); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ }
+
+ // Read the message type
+ var msgType messageType
+ if err := binary.Read(conn, binary.BigEndian, &msgType); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ var bufConn io.Reader = conn
+ msghd := codec.MsgpackHandle{}
+ dec := codec.NewDecoder(bufConn, &msghd)
+
+ // Check if we have a compressed message
+ if msgType == compressMsg {
+ var c compress
+ if err := dec.Decode(&c); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ decomp, err := decompressBuffer(&c)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ // Reset the message type
+ msgType = messageType(decomp[0])
+
+ // Create a new bufConn
+ bufConn = bytes.NewReader(decomp[1:])
+
+ // Create a new decoder
+ dec = codec.NewDecoder(bufConn, &hd)
+ }
+
+ // Quit if not push/pull
+ if msgType != pushPullMsg {
+ t.Fatalf("bad message type")
+ }
+
+ if err := dec.Decode(&header); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ // Allocate space for the transfer
+ remoteNodes := make([]pushNodeState, header.Nodes)
+
+ // Try to decode all the states
+ for i := 0; i < header.Nodes; i++ {
+ if err := dec.Decode(&remoteNodes[i]); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ }
+
+ if len(remoteNodes) != 1 {
+ t.Fatalf("bad response")
+ }
+
+ n := &remoteNodes[0]
+ if n.Name != "Test 0" {
+ t.Fatalf("bad name")
+ }
+ if bytes.Compare(n.Addr, net.ParseIP(m.config.BindAddr)) != 0 {
+ t.Fatal("bad addr")
+ }
+ if n.Incarnation != 0 {
+ t.Fatal("bad incarnation")
+ }
+ if n.State != stateSuspect {
+ t.Fatal("bad state")
+ }
+}
+
+func TestSendMsg_Piggyback(t *testing.T) {
+ m := GetMemberlist(t)
+ defer m.Shutdown()
+
+ // Add a message to be broadcast
+ a := alive{
+ Incarnation: 10,
+ Node: "rand",
+ Addr: []byte{127, 0, 0, 255},
+ Meta: nil,
+ }
+ m.encodeAndBroadcast("rand", aliveMsg, &a)
+
+ var udp *net.UDPConn
+ for port := 60000; port < 61000; port++ {
+ udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
+ udpLn, err := net.ListenPacket("udp", udpAddr)
+ if err == nil {
+ udp = udpLn.(*net.UDPConn)
+ break
+ }
+ }
+
+ // Encode a ping
+ ping := ping{SeqNo: 42}
+ buf, err := encode(pingMsg, ping)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ // Send
+ addr := &net.UDPAddr{IP: net.ParseIP(m.config.BindAddr), Port: m.config.BindPort}
+ udp.WriteTo(buf.Bytes(), addr)
+
+ // Wait for response
+ doneCh := make(chan struct{}, 1)
+ go func() {
+ select {
+ case <-doneCh:
+ case <-time.After(2 * time.Second):
+ panic("timeout")
+ }
+ }()
+
+ in := make([]byte, 1500)
+ n, _, err := udp.ReadFrom(in)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ in = in[0:n]
+
+ msgType := messageType(in[0])
+ if msgType != compoundMsg {
+ t.Fatalf("bad response %v", in)
+ }
+
+ // get the parts
+ trunc, parts, err := decodeCompoundMessage(in[1:])
+ if trunc != 0 {
+ t.Fatalf("unexpected truncation")
+ }
+ if len(parts) != 2 {
+ t.Fatalf("unexpected parts %v", parts)
+ }
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ var ack ackResp
+ if err := decode(parts[0][1:], &ack); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ if ack.SeqNo != 42 {
+ t.Fatalf("bad sequence no")
+ }
+
+ var aliveout alive
+ if err := decode(parts[1][1:], &aliveout); err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+
+ if aliveout.Node != "rand" || aliveout.Incarnation != 10 {
+ t.Fatalf("bad mesg")
+ }
+
+ doneCh <- struct{}{}
+}
+
+func TestEncryptDecryptState(t *testing.T) {
+ state := []byte("this is our internal state...")
+ config := &Config{
+ SecretKey: []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
+ ProtocolVersion: ProtocolVersionMax,
+ }
+
+ m, err := Create(config)
+ if err != nil {
+ t.Fatalf("err: %s", err)
+ }
+ defer m.Shutdown()
+
+ crypt, err := m.encryptLocalState(state)
+ if err != nil {
+ t.Fatalf("err: %v", err)
+ }
+
+ // Create reader, seek past the type byte
+ buf := bytes.NewReader(crypt)
+ buf.Seek(1, 0)
+
+ plain, err := m.decryptRemoteState(buf)
+ if err != nil {
+ t.Fatalf("err: %v", err)
+ }
+
+ if !reflect.DeepEqual(state, plain) {
+ t.Fatalf("Decrypt failed: %v", plain)
+ }
+}
+
+func TestRawSendUdp_CRC(t *testing.T) {
+ m := GetMemberlist(t)
+ m.config.EnableCompression = false
+ defer m.Shutdown()
+
+ var udp *net.UDPConn
+ for port := 60000; port < 61000; port++ {
+ udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
+ udpLn, err := net.ListenPacket("udp", udpAddr)
+ if err == nil {
+ udp = udpLn.(*net.UDPConn)
+ break
+ }
+ }
+
+ if udp == nil {
+ t.Fatalf("no udp listener")
+ }
+
+ // Pass a nil node with no nodes registered, should result in no checksum
+ payload := []byte{3, 3, 3, 3}
+ m.rawSendMsgPacket(udp.LocalAddr().String(), nil, payload)
+
+ in := make([]byte, 1500)
+ n, _, err := udp.ReadFrom(in)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ in = in[0:n]
+
+ if len(in) != 4 {
+ t.Fatalf("bad: %v", in)
+ }
+
+ // Pass a non-nil node with PMax >= 5, should result in a checksum
+ m.rawSendMsgPacket(udp.LocalAddr().String(), &Node{PMax: 5}, payload)
+
+ in = make([]byte, 1500)
+ n, _, err = udp.ReadFrom(in)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ in = in[0:n]
+
+ if len(in) != 9 {
+ t.Fatalf("bad: %v", in)
+ }
+
+ // Register a node with PMax >= 5 to be looked up, should result in a checksum
+ m.nodeMap["127.0.0.1"] = &nodeState{
+ Node: Node{PMax: 5},
+ }
+ m.rawSendMsgPacket(udp.LocalAddr().String(), nil, payload)
+
+ in = make([]byte, 1500)
+ n, _, err = udp.ReadFrom(in)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ in = in[0:n]
+
+ if len(in) != 9 {
+ t.Fatalf("bad: %v", in)
+ }
+}
+
+func TestIngestPacket_CRC(t *testing.T) {
+ m := GetMemberlist(t)
+ m.config.EnableCompression = false
+ defer m.Shutdown()
+
+ var udp *net.UDPConn
+ for port := 60000; port < 61000; port++ {
+ udpAddr := fmt.Sprintf("127.0.0.1:%d", port)
+ udpLn, err := net.ListenPacket("udp", udpAddr)
+ if err == nil {
+ udp = udpLn.(*net.UDPConn)
+ break
+ }
+ }
+
+ if udp == nil {
+ t.Fatalf("no udp listener")
+ }
+
+ // Get a message with a checksum
+ payload := []byte{3, 3, 3, 3}
+ m.rawSendMsgPacket(udp.LocalAddr().String(), &Node{PMax: 5}, payload)
+
+ in := make([]byte, 1500)
+ n, _, err := udp.ReadFrom(in)
+ if err != nil {
+ t.Fatalf("unexpected err %s", err)
+ }
+ in = in[0:n]
+
+ if len(in) != 9 {
+ t.Fatalf("bad: %v", in)
+ }
+
+ // Corrupt the checksum
+ in[1] <<= 1
+
+ logs := &bytes.Buffer{}
+ logger := log.New(logs, "", 0)
+ m.logger = logger
+ m.ingestPacket(in, udp.LocalAddr(), time.Now())
+
+ if !strings.Contains(logs.String(), "invalid checksum") {
+ t.Fatalf("bad: %s", logs.String())
+ }
+}
generated by cgit v1.2.3-1-g7c22 (git 2.25.1) at 2024-06-30 10:05:28 +0000