321 lines
9.6 KiB
Go
321 lines
9.6 KiB
Go
// Copyright (c) 2013-2014 Conformal Systems LLC.
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package btcwire_test
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import (
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"bytes"
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"github.com/conformal/btcwire"
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"github.com/davecgh/go-spew/spew"
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"io"
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"net"
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"reflect"
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"testing"
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"time"
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)
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// TestAddr tests the MsgAddr API.
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func TestAddr(t *testing.T) {
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pver := btcwire.ProtocolVersion
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// Ensure the command is expected value.
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wantCmd := "addr"
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msg := btcwire.NewMsgAddr()
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if cmd := msg.Command(); cmd != wantCmd {
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t.Errorf("NewMsgAddr: wrong command - got %v want %v",
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cmd, wantCmd)
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}
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// Ensure max payload is expected value for latest protocol version.
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// Num addresses (varInt) + max allowed addresses.
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wantPayload := uint32(30009)
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maxPayload := msg.MaxPayloadLength(pver)
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if maxPayload != wantPayload {
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t.Errorf("MaxPayloadLength: wrong max payload length for "+
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"protocol version %d - got %v, want %v", pver,
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maxPayload, wantPayload)
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}
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// Ensure NetAddresses are added properly.
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tcpAddr := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
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na, err := btcwire.NewNetAddress(tcpAddr, btcwire.SFNodeNetwork)
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if err != nil {
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t.Errorf("NewNetAddress: %v", err)
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}
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err = msg.AddAddress(na)
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if err != nil {
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t.Errorf("AddAddress: %v", err)
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}
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if msg.AddrList[0] != na {
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t.Errorf("AddAddress: wrong address added - got %v, want %v",
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spew.Sprint(msg.AddrList[0]), spew.Sprint(na))
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}
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// Ensure the address list is cleared properly.
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msg.ClearAddresses()
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if len(msg.AddrList) != 0 {
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t.Errorf("ClearAddresses: address list is not empty - "+
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"got %v [%v], want %v", len(msg.AddrList),
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spew.Sprint(msg.AddrList[0]), 0)
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}
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// Ensure adding more than the max allowed addresses per message returns
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// error.
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for i := 0; i < btcwire.MaxAddrPerMsg+1; i++ {
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err = msg.AddAddress(na)
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}
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if err == nil {
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t.Errorf("AddAddress: expected error on too many addresses " +
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"not received")
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}
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err = msg.AddAddresses(na)
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if err == nil {
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t.Errorf("AddAddresses: expected error on too many addresses " +
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"not received")
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}
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// Ensure max payload is expected value for protocol versions before
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// timestamp was added to NetAddress.
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// Num addresses (varInt) + max allowed addresses.
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pver = btcwire.NetAddressTimeVersion - 1
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wantPayload = uint32(26009)
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maxPayload = msg.MaxPayloadLength(pver)
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if maxPayload != wantPayload {
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t.Errorf("MaxPayloadLength: wrong max payload length for "+
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"protocol version %d - got %v, want %v", pver,
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maxPayload, wantPayload)
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}
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// Ensure max payload is expected value for protocol versions before
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// multiple addresses were allowed.
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// Num addresses (varInt) + a single net addresses.
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pver = btcwire.MultipleAddressVersion - 1
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wantPayload = uint32(35)
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maxPayload = msg.MaxPayloadLength(pver)
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if maxPayload != wantPayload {
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t.Errorf("MaxPayloadLength: wrong max payload length for "+
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"protocol version %d - got %v, want %v", pver,
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maxPayload, wantPayload)
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}
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return
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}
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// TestAddrWire tests the MsgAddr wire encode and decode for various numbers
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// of addreses and protocol versions.
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func TestAddrWire(t *testing.T) {
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// A couple of NetAddresses to use for testing.
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na := &btcwire.NetAddress{
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Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
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Services: btcwire.SFNodeNetwork,
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IP: net.ParseIP("127.0.0.1"),
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Port: 8333,
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}
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na2 := &btcwire.NetAddress{
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Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
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Services: btcwire.SFNodeNetwork,
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IP: net.ParseIP("192.168.0.1"),
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Port: 8334,
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}
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// Empty address message.
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noAddr := btcwire.NewMsgAddr()
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noAddrEncoded := []byte{
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0x00, // Varint for number of addresses
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}
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// Address message with multiple addresses.
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multiAddr := btcwire.NewMsgAddr()
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multiAddr.AddAddresses(na, na2)
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multiAddrEncoded := []byte{
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0x02, // Varint for number of addresses
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0x29, 0xab, 0x5f, 0x49, // Timestamp
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
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0x20, 0x8d, // Port 8333 in big-endian
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0x29, 0xab, 0x5f, 0x49, // Timestamp
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0xff, 0xff, 0xc0, 0xa8, 0x00, 0x01, // IP 192.168.0.1
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0x20, 0x8e, // Port 8334 in big-endian
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}
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tests := []struct {
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in *btcwire.MsgAddr // Message to encode
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out *btcwire.MsgAddr // Expected decoded message
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buf []byte // Wire encoding
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pver uint32 // Protocol version for wire encoding
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}{
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// Latest protocol version with no addresses.
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{
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noAddr,
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noAddr,
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noAddrEncoded,
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btcwire.ProtocolVersion,
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},
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// Latest protocol version with multiple addresses.
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{
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multiAddr,
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multiAddr,
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multiAddrEncoded,
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btcwire.ProtocolVersion,
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},
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// Protocol version MultipleAddressVersion-1 with no addresses.
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{
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noAddr,
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noAddr,
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noAddrEncoded,
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btcwire.MultipleAddressVersion - 1,
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},
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}
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t.Logf("Running %d tests", len(tests))
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for i, test := range tests {
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// Encode the message to wire format.
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var buf bytes.Buffer
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err := test.in.BtcEncode(&buf, test.pver)
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if err != nil {
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t.Errorf("BtcEncode #%d error %v", i, err)
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continue
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}
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if !bytes.Equal(buf.Bytes(), test.buf) {
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t.Errorf("BtcEncode #%d\n got: %s want: %s", i,
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spew.Sdump(buf.Bytes()), spew.Sdump(test.buf))
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continue
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}
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// Decode the message from wire format.
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var msg btcwire.MsgAddr
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rbuf := bytes.NewBuffer(test.buf)
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err = msg.BtcDecode(rbuf, test.pver)
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if err != nil {
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t.Errorf("BtcDecode #%d error %v", i, err)
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continue
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}
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if !reflect.DeepEqual(&msg, test.out) {
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t.Errorf("BtcDecode #%d\n got: %s want: %s", i,
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spew.Sdump(msg), spew.Sdump(test.out))
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continue
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}
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}
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}
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// TestAddrWireErrors performs negative tests against wire encode and decode
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// of MsgAddr to confirm error paths work correctly.
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func TestAddrWireErrors(t *testing.T) {
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pver := btcwire.ProtocolVersion
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pverMA := btcwire.MultipleAddressVersion
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btcwireErr := &btcwire.MessageError{}
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// A couple of NetAddresses to use for testing.
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na := &btcwire.NetAddress{
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Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
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Services: btcwire.SFNodeNetwork,
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IP: net.ParseIP("127.0.0.1"),
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Port: 8333,
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}
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na2 := &btcwire.NetAddress{
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Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
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Services: btcwire.SFNodeNetwork,
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IP: net.ParseIP("192.168.0.1"),
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Port: 8334,
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}
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// Address message with multiple addresses.
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baseAddr := btcwire.NewMsgAddr()
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baseAddr.AddAddresses(na, na2)
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baseAddrEncoded := []byte{
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0x02, // Varint for number of addresses
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0x29, 0xab, 0x5f, 0x49, // Timestamp
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
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0x20, 0x8d, // Port 8333 in big-endian
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0x29, 0xab, 0x5f, 0x49, // Timestamp
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0xff, 0xff, 0xc0, 0xa8, 0x00, 0x01, // IP 192.168.0.1
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0x20, 0x8e, // Port 8334 in big-endian
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}
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// Message that forces an error by having more than the max allowed
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// addresses.
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maxAddr := btcwire.NewMsgAddr()
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for i := 0; i < btcwire.MaxAddrPerMsg; i++ {
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maxAddr.AddAddress(na)
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}
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maxAddr.AddrList = append(maxAddr.AddrList, na)
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maxAddrEncoded := []byte{
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0xfd, 0x03, 0xe9, // Varint for number of addresses (1001)
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}
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tests := []struct {
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in *btcwire.MsgAddr // Value to encode
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buf []byte // Wire encoding
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pver uint32 // Protocol version for wire encoding
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max int // Max size of fixed buffer to induce errors
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writeErr error // Expected write error
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readErr error // Expected read error
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}{
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// Latest protocol version with intentional read/write errors.
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// Force error in addresses count
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{baseAddr, baseAddrEncoded, pver, 0, io.ErrShortWrite, io.EOF},
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// Force error in address list.
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{baseAddr, baseAddrEncoded, pver, 1, io.ErrShortWrite, io.EOF},
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// Force error with greater than max inventory vectors.
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{maxAddr, maxAddrEncoded, pver, 3, btcwireErr, btcwireErr},
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// Force error with greater than max inventory vectors for
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// protocol versions before multiple addresses were allowed.
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{maxAddr, maxAddrEncoded, pverMA - 1, 3, btcwireErr, btcwireErr},
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}
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t.Logf("Running %d tests", len(tests))
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for i, test := range tests {
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// Encode to wire format.
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w := newFixedWriter(test.max)
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err := test.in.BtcEncode(w, test.pver)
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if reflect.TypeOf(err) != reflect.TypeOf(test.writeErr) {
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t.Errorf("BtcEncode #%d wrong error got: %v, want: %v",
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i, err, test.writeErr)
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continue
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}
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// For errors which are not of type btcwire.MessageError, check
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// them for equality.
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if _, ok := err.(*btcwire.MessageError); !ok {
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if err != test.writeErr {
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t.Errorf("BtcEncode #%d wrong error got: %v, "+
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"want: %v", i, err, test.writeErr)
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continue
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}
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}
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// Decode from wire format.
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var msg btcwire.MsgAddr
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r := newFixedReader(test.max, test.buf)
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err = msg.BtcDecode(r, test.pver)
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if reflect.TypeOf(err) != reflect.TypeOf(test.readErr) {
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t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
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i, err, test.readErr)
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continue
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}
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// For errors which are not of type btcwire.MessageError, check
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// them for equality.
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if _, ok := err.(*btcwire.MessageError); !ok {
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if err != test.readErr {
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t.Errorf("BtcDecode #%d wrong error got: %v, "+
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"want: %v", i, err, test.readErr)
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continue
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}
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}
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}
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}
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