48abfdf87c
This commit modifies the existing wire.Message interface to introduce a new MessageEncoding variant which dictates the exact encoding to be used when serializing and deserializing messages. Such an option is now necessary due to the segwit soft-fork package, as btcd will need to be able to optionally encode transactions/blocks without witness data to un-upgraded peers. Two new functions have been introduced: ReadMessageWithEncodingN and WriteMessageWithEncodingN which wrap BtcDecode/BtcEncode with the desired encoding format.
126 lines
2.8 KiB
Go
126 lines
2.8 KiB
Go
// Copyright (c) 2013-2016 The btcsuite developers
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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 wire
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import (
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"bytes"
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"reflect"
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"testing"
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"github.com/davecgh/go-spew/spew"
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)
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// TestGetAddr tests the MsgGetAddr API.
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func TestGetAddr(t *testing.T) {
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pver := ProtocolVersion
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// Ensure the command is expected value.
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wantCmd := "getaddr"
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msg := NewMsgGetAddr()
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if cmd := msg.Command(); cmd != wantCmd {
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t.Errorf("NewMsgGetAddr: 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(0)
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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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}
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// TestGetAddrWire tests the MsgGetAddr wire encode and decode for various
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// protocol versions.
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func TestGetAddrWire(t *testing.T) {
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msgGetAddr := NewMsgGetAddr()
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msgGetAddrEncoded := []byte{}
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tests := []struct {
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in *MsgGetAddr // Message to encode
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out *MsgGetAddr // 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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enc MessageEncoding // Message encoding variant.
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}{
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// Latest protocol version.
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{
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msgGetAddr,
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msgGetAddr,
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msgGetAddrEncoded,
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ProtocolVersion,
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BaseEncoding,
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},
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// Protocol version BIP0035Version.
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{
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msgGetAddr,
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msgGetAddr,
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msgGetAddrEncoded,
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BIP0035Version,
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BaseEncoding,
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},
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// Protocol version BIP0031Version.
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{
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msgGetAddr,
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msgGetAddr,
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msgGetAddrEncoded,
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BIP0031Version,
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BaseEncoding,
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},
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// Protocol version NetAddressTimeVersion.
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{
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msgGetAddr,
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msgGetAddr,
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msgGetAddrEncoded,
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NetAddressTimeVersion,
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BaseEncoding,
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},
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// Protocol version MultipleAddressVersion.
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{
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msgGetAddr,
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msgGetAddr,
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msgGetAddrEncoded,
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MultipleAddressVersion,
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BaseEncoding,
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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, test.enc)
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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 MsgGetAddr
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rbuf := bytes.NewReader(test.buf)
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err = msg.BtcDecode(rbuf, test.pver, test.enc)
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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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