forked from btcsuite/btcwire
/
msgversion_test.go
277 lines (251 loc) · 8.43 KB
/
msgversion_test.go
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// Copyright (c) 2013 Conformal Systems LLC.
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package btcwire_test
import (
"bytes"
"github.com/conformal/btcwire"
"github.com/davecgh/go-spew/spew"
"net"
"reflect"
"testing"
"time"
)
// TestVersion tests the MsgVersion API.
func TestVersion(t *testing.T) {
pver := btcwire.ProtocolVersion
// Create version message data.
userAgent := "/btcdtest:0.0.1/"
lastBlock := int32(234234)
tcpAddrMe := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
me, err := btcwire.NewNetAddress(tcpAddrMe, btcwire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
tcpAddrYou := &net.TCPAddr{IP: net.ParseIP("192.168.0.1"), Port: 8333}
you, err := btcwire.NewNetAddress(tcpAddrYou, btcwire.SFNodeNetwork)
if err != nil {
t.Errorf("NewNetAddress: %v", err)
}
nonce, err := btcwire.RandomUint64()
if err != nil {
t.Errorf("RandomUint64: error generating nonce: %v", err)
}
// Ensure we get the correct data back out.
msg := btcwire.NewMsgVersion(me, you, nonce, userAgent, lastBlock)
if msg.ProtocolVersion != int32(pver) {
t.Errorf("NewMsgVersion: wrong protocol version - got %v, want %v",
msg.ProtocolVersion, pver)
}
if !reflect.DeepEqual(&msg.AddrMe, me) {
t.Errorf("NewMsgVersion: wrong me address - got %v, want %v",
spew.Sdump(&msg.AddrMe), spew.Sdump(me))
}
if !reflect.DeepEqual(&msg.AddrYou, you) {
t.Errorf("NewMsgVersion: wrong you address - got %v, want %v",
spew.Sdump(&msg.AddrYou), spew.Sdump(you))
}
if msg.Nonce != nonce {
t.Errorf("NewMsgVersion: wrong nonce - got %v, want %v",
msg.Nonce, nonce)
}
if msg.UserAgent != userAgent {
t.Errorf("NewMsgVersion: wrong user agent - got %v, want %v",
msg.UserAgent, userAgent)
}
if msg.LastBlock != lastBlock {
t.Errorf("NewMsgVersion: wrong last block - got %v, want %v",
msg.LastBlock, lastBlock)
}
// Version message should not have any services set by default.
if msg.Services != 0 {
t.Errorf("NewMsgVersion: wrong default services - got %v, want %v",
msg.Services, 0)
}
if msg.HasService(btcwire.SFNodeNetwork) {
t.Errorf("HasService: SFNodeNetwork service is set")
}
// Ensure the command is expected value.
wantCmd := "version"
if cmd := msg.Command(); cmd != wantCmd {
t.Errorf("NewMsgVersion: wrong command - got %v want %v",
cmd, wantCmd)
}
// Ensure max payload is expected value.
// Protocol version 4 bytes + services 8 bytes + timestamp 8 bytes +
// remote and local net addresses + nonce 8 bytes + length of user agent
// (varInt) + max allowed user agent length + last block 4 bytes.
wantPayload := uint32(2101)
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 adding the full service node flag works.
msg.AddService(btcwire.SFNodeNetwork)
if msg.Services != btcwire.SFNodeNetwork {
t.Errorf("AddService: wrong services - got %v, want %v",
msg.Services, btcwire.SFNodeNetwork)
}
if !msg.HasService(btcwire.SFNodeNetwork) {
t.Errorf("HasService: SFNodeNetwork service not set")
}
// Use a fake connection.
conn := &fakeConn{localAddr: tcpAddrMe, remoteAddr: tcpAddrYou}
msg, err = btcwire.NewMsgVersionFromConn(conn, nonce, userAgent, lastBlock)
if err != nil {
t.Errorf("NewMsgVersionFromConn: %v", err)
}
// Ensure we get the correct connection data back out.
if !msg.AddrMe.IP.Equal(tcpAddrMe.IP) {
t.Errorf("NewMsgVersionFromConn: wrong me ip - got %v, want %v",
msg.AddrMe.IP, tcpAddrMe.IP)
}
if !msg.AddrYou.IP.Equal(tcpAddrYou.IP) {
t.Errorf("NewMsgVersionFromConn: wrong you ip - got %v, want %v",
msg.AddrYou.IP, tcpAddrYou.IP)
}
// Use a fake connection with local UDP addresses to force a failure.
conn = &fakeConn{
localAddr: &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333},
remoteAddr: tcpAddrYou,
}
msg, err = btcwire.NewMsgVersionFromConn(conn, nonce, userAgent, lastBlock)
if err != btcwire.ErrInvalidNetAddr {
t.Errorf("NewMsgVersionFromConn: expected error not received "+
"- got %v, want %v", err, btcwire.ErrInvalidNetAddr)
}
// Use a fake connection with remote UDP addresses to force a failure.
conn = &fakeConn{
localAddr: tcpAddrMe,
remoteAddr: &net.UDPAddr{IP: net.ParseIP("192.168.0.1"), Port: 8333},
}
msg, err = btcwire.NewMsgVersionFromConn(conn, nonce, userAgent, lastBlock)
if err != btcwire.ErrInvalidNetAddr {
t.Errorf("NewMsgVersionFromConn: expected error not received "+
"- got %v, want %v", err, btcwire.ErrInvalidNetAddr)
}
return
}
// TestAlertWire tests the MsgAlert wire encode and decode for various protocol
// versions.
func TestVersionWire(t *testing.T) {
// baseNetAddrYou is used in the various tests as a baseline remote
// NetAddress.
baseNetAddrYou := btcwire.NetAddress{
Timestamp: time.Time{}, // Zero value -- no timestamp in version
Services: btcwire.SFNodeNetwork,
IP: net.ParseIP("192.168.0.1"),
Port: 8333,
}
// baseNetAddrMe is used in the various tests as a baseline local
// NetAddress.
baseNetAddrMe := btcwire.NetAddress{
Timestamp: time.Time{}, // Zero value -- no timestamp in version
Services: btcwire.SFNodeNetwork,
IP: net.ParseIP("127.0.0.1"),
Port: 8333,
}
// baseVersion is used in the various tests as a baseline version.
baseVersion := &btcwire.MsgVersion{
ProtocolVersion: 60002,
Services: btcwire.SFNodeNetwork,
Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST)
AddrYou: baseNetAddrYou,
AddrMe: baseNetAddrMe,
Nonce: 123123, // 0x1e0f3
UserAgent: "/btcdtest:0.0.1/",
LastBlock: 234234, // 0x392fa
}
baseVersionEncoded := []byte{
0x62, 0xea, 0x00, 0x00, // Protocol version 60002
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
0x29, 0xab, 0x5f, 0x49, 0x00, 0x00, 0x00, 0x00, // 64-bit Timestamp
// AddrYou -- No timestamp for NetAddress in version message
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, 0x8d, // Port 8333 in big-endian
// AddrMe -- No timestamp for NetAddress in version message
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
0xf3, 0xe0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, // Nonce
0x10, // Varint for user agent length
0x2f, 0x62, 0x74, 0x63, 0x64, 0x74, 0x65, 0x73,
0x74, 0x3a, 0x30, 0x2e, 0x30, 0x2e, 0x31, 0x2f, // User agent
0xfa, 0x92, 0x03, 0x00, // Last block
}
tests := []struct {
in *btcwire.MsgVersion // Message to encode
out *btcwire.MsgVersion // Expected decoded message
buf []byte // Wire encoding
pver uint32 // Protocol version for wire encoding
}{
// Latest protocol version.
{
baseVersion,
baseVersion,
baseVersionEncoded,
btcwire.ProtocolVersion,
},
// Protocol version BIP0035Version.
{
baseVersion,
baseVersion,
baseVersionEncoded,
btcwire.BIP0035Version,
},
// Protocol version BIP0031Version.
{
baseVersion,
baseVersion,
baseVersionEncoded,
btcwire.BIP0031Version,
},
// Protocol version NetAddressTimeVersion.
{
baseVersion,
baseVersion,
baseVersionEncoded,
btcwire.NetAddressTimeVersion,
},
// Protocol version MultipleAddressVersion.
{
baseVersion,
baseVersion,
baseVersionEncoded,
btcwire.MultipleAddressVersion,
},
}
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 btcwire.MsgVersion
rbuf := bytes.NewBuffer(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
}
}
}