// TestMessage tests the Read/WriteMessage and Read/WriteMessageN API.
func TestMessage(t *testing.T) {
pver := wire.ProtocolVersion
// Create the various types of messages to test.
// MsgVersion.
addrYou := &net.TCPAddr{IP: net.ParseIP("192.168.0.1"), Port: 8333}
you, err := wire.NewNetAddress(addrYou, wire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
you.Timestamp = time.Time{} // Version message has zero value timestamp.
addrMe := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
me, err := wire.NewNetAddress(addrMe, wire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
me.Timestamp = time.Time{} // Version message has zero value timestamp.
msgVersion := wire.NewMsgVersion(me, you, 123123, 0)
msgVerack := wire.NewMsgVerAck()
msgGetAddr := wire.NewMsgGetAddr()
msgAddr := wire.NewMsgAddr()
msgGetBlocks := wire.NewMsgGetBlocks(&wire.ShaHash{})
msgBlock := &blockOne
msgInv := wire.NewMsgInv()
msgGetData := wire.NewMsgGetData()
msgNotFound := wire.NewMsgNotFound()
msgTx := wire.NewMsgTx()
msgPing := wire.NewMsgPing(123123)
msgPong := wire.NewMsgPong(123123)
msgGetHeaders := wire.NewMsgGetHeaders()
msgHeaders := wire.NewMsgHeaders()
msgAlert := wire.NewMsgAlert([]byte("payload"), []byte("signature"))
msgMemPool := wire.NewMsgMemPool()
msgFilterAdd := wire.NewMsgFilterAdd([]byte{0x01})
msgFilterClear := wire.NewMsgFilterClear()
msgFilterLoad := wire.NewMsgFilterLoad([]byte{0x01}, 10, 0, wire.BloomUpdateNone)
bh := wire.NewBlockHeader(&wire.ShaHash{}, &wire.ShaHash{}, 0, 0)
msgMerkleBlock := wire.NewMsgMerkleBlock(bh)
msgReject := wire.NewMsgReject("block", wire.RejectDuplicate, "duplicate block")
tests := []struct {
in wire.Message // Value to encode
out wire.Message // Expected decoded value
pver uint32 // Protocol version for wire encoding
btcnet wire.BitcoinNet // Network to use for wire encoding
bytes int // Expected num bytes read/written
}{
{msgVersion, msgVersion, pver, wire.MainNet, 125},
{msgVerack, msgVerack, pver, wire.MainNet, 24},
{msgGetAddr, msgGetAddr, pver, wire.MainNet, 24},
{msgAddr, msgAddr, pver, wire.MainNet, 25},
{msgGetBlocks, msgGetBlocks, pver, wire.MainNet, 61},
{msgBlock, msgBlock, pver, wire.MainNet, 239},
{msgInv, msgInv, pver, wire.MainNet, 25},
{msgGetData, msgGetData, pver, wire.MainNet, 25},
{msgNotFound, msgNotFound, pver, wire.MainNet, 25},
{msgTx, msgTx, pver, wire.MainNet, 34},
{msgPing, msgPing, pver, wire.MainNet, 32},
{msgPong, msgPong, pver, wire.MainNet, 32},
{msgGetHeaders, msgGetHeaders, pver, wire.MainNet, 61},
{msgHeaders, msgHeaders, pver, wire.MainNet, 25},
{msgAlert, msgAlert, pver, wire.MainNet, 42},
{msgMemPool, msgMemPool, pver, wire.MainNet, 24},
{msgFilterAdd, msgFilterAdd, pver, wire.MainNet, 26},
{msgFilterClear, msgFilterClear, pver, wire.MainNet, 24},
{msgFilterLoad, msgFilterLoad, pver, wire.MainNet, 35},
{msgMerkleBlock, msgMerkleBlock, pver, wire.MainNet, 110},
{msgReject, msgReject, pver, wire.MainNet, 79},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode to wire format.
var buf bytes.Buffer
nw, err := wire.WriteMessageN(&buf, test.in, test.pver, test.btcnet)
if err != nil {
t.Errorf("WriteMessage #%d error %v", i, err)
continue
}
// Ensure the number of bytes written match the expected value.
if nw != test.bytes {
t.Errorf("WriteMessage #%d unexpected num bytes "+
"written - got %d, want %d", i, nw, test.bytes)
}
// Decode from wire format.
rbuf := bytes.NewReader(buf.Bytes())
nr, msg, _, err := wire.ReadMessageN(rbuf, test.pver, test.btcnet)
if err != nil {
t.Errorf("ReadMessage #%d error %v, msg %v", i, err,
spew.Sdump(msg))
continue
}
if !reflect.DeepEqual(msg, test.out) {
t.Errorf("ReadMessage #%d\n got: %v want: %v", i,
spew.Sdump(msg), spew.Sdump(test.out))
continue
}
// Ensure the number of bytes read match the expected value.
if nr != test.bytes {
t.Errorf("ReadMessage #%d unexpected num bytes read - "+
"got %d, want %d", i, nr, test.bytes)
}
}
// Do the same thing for Read/WriteMessage, but ignore the bytes since
// they don't return them.
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode to wire format.
var buf bytes.Buffer
err := wire.WriteMessage(&buf, test.in, test.pver, test.btcnet)
if err != nil {
t.Errorf("WriteMessage #%d error %v", i, err)
continue
}
// Decode from wire format.
rbuf := bytes.NewReader(buf.Bytes())
msg, _, err := wire.ReadMessage(rbuf, test.pver, test.btcnet)
if err != nil {
t.Errorf("ReadMessage #%d error %v, msg %v", i, err,
spew.Sdump(msg))
continue
}
if !reflect.DeepEqual(msg, test.out) {
t.Errorf("ReadMessage #%d\n got: %v want: %v", i,
spew.Sdump(msg), spew.Sdump(test.out))
continue
}
}
}
// TestAddr tests the MsgAddr API.
func TestAddr(t *testing.T) {
pver := wire.ProtocolVersion
// Ensure the command is expected value.
wantCmd := "addr"
msg := wire.NewMsgAddr()
if cmd := msg.Command(); cmd != wantCmd {
t.Errorf("NewMsgAddr: wrong command - got %v want %v",
cmd, wantCmd)
}
// Ensure max payload is expected value for latest protocol version.
// Num addresses (varInt) + max allowed addresses.
wantPayload := uint32(30009)
maxPayload := msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Ensure NetAddresses are added properly.
tcpAddr := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
na, err := wire.NewNetAddress(tcpAddr, wire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
err = msg.AddAddress(na)
if err != nil {
t.Errorf("AddAddress: %v", err)
}
if msg.AddrList[0] != na {
t.Errorf("AddAddress: wrong address added - got %v, want %v",
spew.Sprint(msg.AddrList[0]), spew.Sprint(na))
}
// Ensure the address list is cleared properly.
msg.ClearAddresses()
if len(msg.AddrList) != 0 {
t.Errorf("ClearAddresses: address list is not empty - "+
"got %v [%v], want %v", len(msg.AddrList),
spew.Sprint(msg.AddrList[0]), 0)
}
// Ensure adding more than the max allowed addresses per message returns
// error.
for i := 0; i < wire.MaxAddrPerMsg+1; i++ {
err = msg.AddAddress(na)
}
if err == nil {
t.Errorf("AddAddress: expected error on too many addresses " +
"not received")
}
err = msg.AddAddresses(na)
if err == nil {
t.Errorf("AddAddresses: expected error on too many addresses " +
"not received")
}
// Ensure max payload is expected value for protocol versions before
// timestamp was added to NetAddress.
// Num addresses (varInt) + max allowed addresses.
pver = wire.NetAddressTimeVersion - 1
wantPayload = uint32(26009)
maxPayload = msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Ensure max payload is expected value for protocol versions before
// multiple addresses were allowed.
// Num addresses (varInt) + a single net addresses.
pver = wire.MultipleAddressVersion - 1
wantPayload = uint32(35)
maxPayload = msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
return
}
// TestAddrWireErrors performs negative tests against wire encode and decode
// of MsgAddr to confirm error paths work correctly.
func TestAddrWireErrors(t *testing.T) {
pver := wire.ProtocolVersion
pverMA := wire.MultipleAddressVersion
wireErr := &wire.MessageError{}
// A couple of NetAddresses to use for testing.
na := &wire.NetAddress{
Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
Services: wire.SFNodeNetwork,
IP: net.ParseIP("127.0.0.1"),
Port: 8333,
}
na2 := &wire.NetAddress{
Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
Services: wire.SFNodeNetwork,
IP: net.ParseIP("192.168.0.1"),
Port: 8334,
}
// Address message with multiple addresses.
baseAddr := wire.NewMsgAddr()
baseAddr.AddAddresses(na, na2)
baseAddrEncoded := []byte{
0x02, // Varint for number of addresses
0x29, 0xab, 0x5f, 0x49, // Timestamp
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
0x20, 0x8d, // Port 8333 in big-endian
0x29, 0xab, 0x5f, 0x49, // Timestamp
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff, 0xc0, 0xa8, 0x00, 0x01, // IP 192.168.0.1
0x20, 0x8e, // Port 8334 in big-endian
}
// Message that forces an error by having more than the max allowed
// addresses.
maxAddr := wire.NewMsgAddr()
for i := 0; i < wire.MaxAddrPerMsg; i++ {
maxAddr.AddAddress(na)
}
maxAddr.AddrList = append(maxAddr.AddrList, na)
maxAddrEncoded := []byte{
0xfd, 0x03, 0xe9, // Varint for number of addresses (1001)
}
tests := []struct {
in *wire.MsgAddr // Value to encode
buf []byte // Wire encoding
pver uint32 // Protocol version for wire encoding
max int // Max size of fixed buffer to induce errors
writeErr error // Expected write error
readErr error // Expected read error
}{
// Latest protocol version with intentional read/write errors.
// Force error in addresses count
{baseAddr, baseAddrEncoded, pver, 0, io.ErrShortWrite, io.EOF},
// Force error in address list.
{baseAddr, baseAddrEncoded, pver, 1, io.ErrShortWrite, io.EOF},
// Force error with greater than max inventory vectors.
{maxAddr, maxAddrEncoded, pver, 3, wireErr, wireErr},
// Force error with greater than max inventory vectors for
// protocol versions before multiple addresses were allowed.
{maxAddr, maxAddrEncoded, pverMA - 1, 3, wireErr, wireErr},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode to wire format.
w := newFixedWriter(test.max)
err := test.in.BtcEncode(w, test.pver)
if reflect.TypeOf(err) != reflect.TypeOf(test.writeErr) {
t.Errorf("BtcEncode #%d wrong error got: %v, want: %v",
i, err, test.writeErr)
continue
}
// For errors which are not of type wire.MessageError, check
// them for equality.
if _, ok := err.(*wire.MessageError); !ok {
if err != test.writeErr {
t.Errorf("BtcEncode #%d wrong error got: %v, "+
"want: %v", i, err, test.writeErr)
continue
}
}
// Decode from wire format.
var msg wire.MsgAddr
r := newFixedReader(test.max, test.buf)
err = msg.BtcDecode(r, test.pver)
if reflect.TypeOf(err) != reflect.TypeOf(test.readErr) {
t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
i, err, test.readErr)
continue
}
// For errors which are not of type wire.MessageError, check
// them for equality.
if _, ok := err.(*wire.MessageError); !ok {
if err != test.readErr {
t.Errorf("BtcDecode #%d wrong error got: %v, "+
"want: %v", i, err, test.readErr)
continue
}
}
}
}
// TestAddrWire tests the MsgAddr wire encode and decode for various numbers
// of addreses and protocol versions.
func TestAddrWire(t *testing.T) {
// A couple of NetAddresses to use for testing.
na := &wire.NetAddress{
Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
Services: wire.SFNodeNetwork,
IP: net.ParseIP("127.0.0.1"),
Port: 8333,
}
na2 := &wire.NetAddress{
Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
Services: wire.SFNodeNetwork,
IP: net.ParseIP("192.168.0.1"),
Port: 8334,
}
// Empty address message.
noAddr := wire.NewMsgAddr()
noAddrEncoded := []byte{
0x00, // Varint for number of addresses
}
// Address message with multiple addresses.
multiAddr := wire.NewMsgAddr()
multiAddr.AddAddresses(na, na2)
multiAddrEncoded := []byte{
0x02, // Varint for number of addresses
0x29, 0xab, 0x5f, 0x49, // Timestamp
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
0x20, 0x8d, // Port 8333 in big-endian
0x29, 0xab, 0x5f, 0x49, // Timestamp
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff, 0xc0, 0xa8, 0x00, 0x01, // IP 192.168.0.1
0x20, 0x8e, // Port 8334 in big-endian
}
tests := []struct {
in *wire.MsgAddr // Message to encode
out *wire.MsgAddr // Expected decoded message
buf []byte // Wire encoding
pver uint32 // Protocol version for wire encoding
}{
// Latest protocol version with no addresses.
{
noAddr,
noAddr,
noAddrEncoded,
wire.ProtocolVersion,
},
// Latest protocol version with multiple addresses.
{
multiAddr,
multiAddr,
multiAddrEncoded,
wire.ProtocolVersion,
},
// Protocol version MultipleAddressVersion-1 with no addresses.
{
noAddr,
noAddr,
noAddrEncoded,
wire.MultipleAddressVersion - 1,
},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode the message to wire format.
var buf bytes.Buffer
err := test.in.BtcEncode(&buf, test.pver)
if err != nil {
t.Errorf("BtcEncode #%d error %v", i, err)
continue
}
if !bytes.Equal(buf.Bytes(), test.buf) {
t.Errorf("BtcEncode #%d\n got: %s want: %s", i,
spew.Sdump(buf.Bytes()), spew.Sdump(test.buf))
continue
}
// Decode the message from wire format.
var msg wire.MsgAddr
rbuf := bytes.NewReader(test.buf)
err = msg.BtcDecode(rbuf, test.pver)
if err != nil {
t.Errorf("BtcDecode #%d error %v", i, err)
continue
}
if !reflect.DeepEqual(&msg, test.out) {
t.Errorf("BtcDecode #%d\n got: %s want: %s", i,
spew.Sdump(msg), spew.Sdump(test.out))
continue
}
}
}