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468 lines
16 KiB
468 lines
16 KiB
9 years ago
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// Copyright (c) 2013-2015 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_test
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import (
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"bytes"
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"io"
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"reflect"
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"testing"
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"github.com/btcsuite/btcd/wire"
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"github.com/davecgh/go-spew/spew"
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)
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// TestMsgAlert tests the MsgAlert API.
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func TestMsgAlert(t *testing.T) {
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pver := wire.ProtocolVersion
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serializedpayload := []byte("some message")
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signature := []byte("some sig")
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// Ensure we get the same payload and signature back out.
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msg := wire.NewMsgAlert(serializedpayload, signature)
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if !reflect.DeepEqual(msg.SerializedPayload, serializedpayload) {
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t.Errorf("NewMsgAlert: wrong serializedpayload - got %v, want %v",
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msg.SerializedPayload, serializedpayload)
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}
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if !reflect.DeepEqual(msg.Signature, signature) {
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t.Errorf("NewMsgAlert: wrong signature - got %v, want %v",
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msg.Signature, signature)
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}
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// Ensure the command is expected value.
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wantCmd := "alert"
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if cmd := msg.Command(); cmd != wantCmd {
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t.Errorf("NewMsgAlert: 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.
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wantPayload := uint32(1024 * 1024 * 32)
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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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// Test BtcEncode with Payload == nil
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var buf bytes.Buffer
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err := msg.BtcEncode(&buf, pver)
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if err != nil {
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t.Error(err.Error())
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}
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// expected = 0x0c + serializedpayload + 0x08 + signature
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expectedBuf := append([]byte{0x0c}, serializedpayload...)
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expectedBuf = append(expectedBuf, []byte{0x08}...)
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expectedBuf = append(expectedBuf, signature...)
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if !bytes.Equal(buf.Bytes(), expectedBuf) {
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t.Errorf("BtcEncode got: %s want: %s",
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spew.Sdump(buf.Bytes()), spew.Sdump(expectedBuf))
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}
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// Test BtcEncode with Payload != nil
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// note: Payload is an empty Alert but not nil
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msg.Payload = new(wire.Alert)
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buf = *new(bytes.Buffer)
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err = msg.BtcEncode(&buf, pver)
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if err != nil {
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t.Error(err.Error())
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}
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// empty Alert is 45 null bytes, see Alert comments
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// for details
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// expected = 0x2d + 45*0x00 + 0x08 + signature
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expectedBuf = append([]byte{0x2d}, bytes.Repeat([]byte{0x00}, 45)...)
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expectedBuf = append(expectedBuf, []byte{0x08}...)
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expectedBuf = append(expectedBuf, signature...)
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if !bytes.Equal(buf.Bytes(), expectedBuf) {
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t.Errorf("BtcEncode got: %s want: %s",
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spew.Sdump(buf.Bytes()), spew.Sdump(expectedBuf))
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}
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}
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// TestMsgAlertWire tests the MsgAlert wire encode and decode for various protocol
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// versions.
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func TestMsgAlertWire(t *testing.T) {
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baseMsgAlert := wire.NewMsgAlert([]byte("some payload"), []byte("somesig"))
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baseMsgAlertEncoded := []byte{
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0x0c, // Varint for payload length
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0x73, 0x6f, 0x6d, 0x65, 0x20, 0x70, 0x61, 0x79,
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0x6c, 0x6f, 0x61, 0x64, // "some payload"
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0x07, // Varint for signature length
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0x73, 0x6f, 0x6d, 0x65, 0x73, 0x69, 0x67, // "somesig"
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}
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tests := []struct {
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in *wire.MsgAlert // Message to encode
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out *wire.MsgAlert // 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.
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{
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baseMsgAlert,
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baseMsgAlert,
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baseMsgAlertEncoded,
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wire.ProtocolVersion,
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},
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// Protocol version BIP0035Version.
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{
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baseMsgAlert,
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baseMsgAlert,
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baseMsgAlertEncoded,
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wire.BIP0035Version,
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},
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// Protocol version BIP0031Version.
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{
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baseMsgAlert,
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baseMsgAlert,
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baseMsgAlertEncoded,
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wire.BIP0031Version,
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},
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// Protocol version NetAddressTimeVersion.
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{
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baseMsgAlert,
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baseMsgAlert,
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baseMsgAlertEncoded,
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wire.NetAddressTimeVersion,
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},
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// Protocol version MultipleAddressVersion.
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{
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baseMsgAlert,
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baseMsgAlert,
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baseMsgAlertEncoded,
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wire.MultipleAddressVersion,
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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 wire.MsgAlert
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rbuf := bytes.NewReader(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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// TestMsgAlertWireErrors performs negative tests against wire encode and decode
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// of MsgAlert to confirm error paths work correctly.
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func TestMsgAlertWireErrors(t *testing.T) {
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pver := wire.ProtocolVersion
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baseMsgAlert := wire.NewMsgAlert([]byte("some payload"), []byte("somesig"))
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baseMsgAlertEncoded := []byte{
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0x0c, // Varint for payload length
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0x73, 0x6f, 0x6d, 0x65, 0x20, 0x70, 0x61, 0x79,
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0x6c, 0x6f, 0x61, 0x64, // "some payload"
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0x07, // Varint for signature length
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0x73, 0x6f, 0x6d, 0x65, 0x73, 0x69, 0x67, // "somesig"
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}
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tests := []struct {
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in *wire.MsgAlert // 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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// Force error in payload length.
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{baseMsgAlert, baseMsgAlertEncoded, pver, 0, io.ErrShortWrite, io.EOF},
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// Force error in payload.
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{baseMsgAlert, baseMsgAlertEncoded, pver, 1, io.ErrShortWrite, io.EOF},
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// Force error in signature length.
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{baseMsgAlert, baseMsgAlertEncoded, pver, 13, io.ErrShortWrite, io.EOF},
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// Force error in signature.
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{baseMsgAlert, baseMsgAlertEncoded, pver, 14, io.ErrShortWrite, io.EOF},
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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 wire.MessageError, check
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// them for equality.
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if _, ok := err.(*wire.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 wire.MsgAlert
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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 wire.MessageError, check
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// them for equality.
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if _, ok := err.(*wire.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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// Test Error on empty Payload
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baseMsgAlert.SerializedPayload = []byte{}
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w := new(bytes.Buffer)
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err := baseMsgAlert.BtcEncode(w, pver)
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if _, ok := err.(*wire.MessageError); !ok {
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t.Errorf("MsgAlert.BtcEncode wrong error got: %T, want: %T",
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err, wire.MessageError{})
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}
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// Test Payload Serialize error
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// overflow the max number of elements in SetCancel
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baseMsgAlert.Payload = new(wire.Alert)
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baseMsgAlert.Payload.SetCancel = make([]int32, wire.MaxCountSetCancel+1)
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buf := *new(bytes.Buffer)
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err = baseMsgAlert.BtcEncode(&buf, pver)
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if _, ok := err.(*wire.MessageError); !ok {
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t.Errorf("MsgAlert.BtcEncode wrong error got: %T, want: %T",
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err, wire.MessageError{})
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}
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// overflow the max number of elements in SetSubVer
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baseMsgAlert.Payload = new(wire.Alert)
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baseMsgAlert.Payload.SetSubVer = make([]string, wire.MaxCountSetSubVer+1)
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buf = *new(bytes.Buffer)
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err = baseMsgAlert.BtcEncode(&buf, pver)
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if _, ok := err.(*wire.MessageError); !ok {
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t.Errorf("MsgAlert.BtcEncode wrong error got: %T, want: %T",
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err, wire.MessageError{})
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}
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}
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// TestAlert tests serialization and deserialization
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// of the payload to Alert
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func TestAlert(t *testing.T) {
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pver := wire.ProtocolVersion
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alert := wire.NewAlert(
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1, 1337093712, 1368628812, 1015,
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1013, []int32{1014}, 0, 40599, []string{"/Satoshi:0.7.2/"}, 5000, "",
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"URGENT: upgrade required, see http://bitcoin.org/dos for details",
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)
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w := new(bytes.Buffer)
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err := alert.Serialize(w, pver)
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if err != nil {
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t.Error(err.Error())
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}
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serializedpayload := w.Bytes()
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newAlert, err := wire.NewAlertFromPayload(serializedpayload, pver)
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if err != nil {
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t.Error(err.Error())
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}
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if alert.Version != newAlert.Version {
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t.Errorf("NewAlertFromPayload: wrong Version - got %v, want %v ",
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alert.Version, newAlert.Version)
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}
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if alert.RelayUntil != newAlert.RelayUntil {
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t.Errorf("NewAlertFromPayload: wrong RelayUntil - got %v, want %v ",
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alert.RelayUntil, newAlert.RelayUntil)
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}
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if alert.Expiration != newAlert.Expiration {
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t.Errorf("NewAlertFromPayload: wrong Expiration - got %v, want %v ",
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alert.Expiration, newAlert.Expiration)
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}
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if alert.ID != newAlert.ID {
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t.Errorf("NewAlertFromPayload: wrong ID - got %v, want %v ",
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alert.ID, newAlert.ID)
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}
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if alert.Cancel != newAlert.Cancel {
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t.Errorf("NewAlertFromPayload: wrong Cancel - got %v, want %v ",
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alert.Cancel, newAlert.Cancel)
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}
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if len(alert.SetCancel) != len(newAlert.SetCancel) {
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t.Errorf("NewAlertFromPayload: wrong number of SetCancel - got %v, want %v ",
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len(alert.SetCancel), len(newAlert.SetCancel))
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}
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for i := 0; i < len(alert.SetCancel); i++ {
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if alert.SetCancel[i] != newAlert.SetCancel[i] {
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t.Errorf("NewAlertFromPayload: wrong SetCancel[%v] - got %v, want %v ",
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len(alert.SetCancel), alert.SetCancel[i], newAlert.SetCancel[i])
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}
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}
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if alert.MinVer != newAlert.MinVer {
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t.Errorf("NewAlertFromPayload: wrong MinVer - got %v, want %v ",
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alert.MinVer, newAlert.MinVer)
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}
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if alert.MaxVer != newAlert.MaxVer {
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t.Errorf("NewAlertFromPayload: wrong MaxVer - got %v, want %v ",
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alert.MaxVer, newAlert.MaxVer)
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}
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if len(alert.SetSubVer) != len(newAlert.SetSubVer) {
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t.Errorf("NewAlertFromPayload: wrong number of SetSubVer - got %v, want %v ",
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len(alert.SetSubVer), len(newAlert.SetSubVer))
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}
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for i := 0; i < len(alert.SetSubVer); i++ {
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if alert.SetSubVer[i] != newAlert.SetSubVer[i] {
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t.Errorf("NewAlertFromPayload: wrong SetSubVer[%v] - got %v, want %v ",
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len(alert.SetSubVer), alert.SetSubVer[i], newAlert.SetSubVer[i])
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}
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}
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if alert.Priority != newAlert.Priority {
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t.Errorf("NewAlertFromPayload: wrong Priority - got %v, want %v ",
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alert.Priority, newAlert.Priority)
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}
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if alert.Comment != newAlert.Comment {
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t.Errorf("NewAlertFromPayload: wrong Comment - got %v, want %v ",
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alert.Comment, newAlert.Comment)
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}
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if alert.StatusBar != newAlert.StatusBar {
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t.Errorf("NewAlertFromPayload: wrong StatusBar - got %v, want %v ",
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alert.StatusBar, newAlert.StatusBar)
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}
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if alert.Reserved != newAlert.Reserved {
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t.Errorf("NewAlertFromPayload: wrong Reserved - got %v, want %v ",
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alert.Reserved, newAlert.Reserved)
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}
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}
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// TestAlertErrors performs negative tests against payload serialization,
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// deserialization of Alert to confirm error paths work correctly.
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func TestAlertErrors(t *testing.T) {
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|
pver := wire.ProtocolVersion
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|
|
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baseAlert := wire.NewAlert(
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1, 1337093712, 1368628812, 1015,
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1013, []int32{1014}, 0, 40599, []string{"/Satoshi:0.7.2/"}, 5000, "",
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"URGENT",
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)
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baseAlertEncoded := []byte{
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0x01, 0x00, 0x00, 0x00, 0x50, 0x6e, 0xb2, 0x4f, 0x00, 0x00, 0x00, 0x00, 0x4c, 0x9e, 0x93, 0x51, //|....Pn.O....L..Q|
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0x00, 0x00, 0x00, 0x00, 0xf7, 0x03, 0x00, 0x00, 0xf5, 0x03, 0x00, 0x00, 0x01, 0xf6, 0x03, 0x00, //|................|
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0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x9e, 0x00, 0x00, 0x01, 0x0f, 0x2f, 0x53, 0x61, 0x74, 0x6f, //|.........../Sato|
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0x73, 0x68, 0x69, 0x3a, 0x30, 0x2e, 0x37, 0x2e, 0x32, 0x2f, 0x88, 0x13, 0x00, 0x00, 0x00, 0x06, //|shi:0.7.2/......|
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0x55, 0x52, 0x47, 0x45, 0x4e, 0x54, 0x00, //|URGENT.|
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}
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tests := []struct {
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in *wire.Alert // 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
|
||
|
writeErr error // Expected write error
|
||
|
readErr error // Expected read error
|
||
|
}{
|
||
|
// Force error in Version
|
||
|
{baseAlert, baseAlertEncoded, pver, 0, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in SetCancel VarInt.
|
||
|
{baseAlert, baseAlertEncoded, pver, 28, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in SetCancel ints.
|
||
|
{baseAlert, baseAlertEncoded, pver, 29, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in MinVer
|
||
|
{baseAlert, baseAlertEncoded, pver, 40, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in SetSubVer string VarInt.
|
||
|
{baseAlert, baseAlertEncoded, pver, 41, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in SetSubVer strings.
|
||
|
{baseAlert, baseAlertEncoded, pver, 48, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in Priority
|
||
|
{baseAlert, baseAlertEncoded, pver, 60, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in Comment string.
|
||
|
{baseAlert, baseAlertEncoded, pver, 62, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in StatusBar string.
|
||
|
{baseAlert, baseAlertEncoded, pver, 64, io.ErrShortWrite, io.EOF},
|
||
|
// Force error in Reserved string.
|
||
|
{baseAlert, baseAlertEncoded, pver, 70, io.ErrShortWrite, io.EOF},
|
||
|
}
|
||
|
|
||
|
t.Logf("Running %d tests", len(tests))
|
||
|
for i, test := range tests {
|
||
|
w := newFixedWriter(test.max)
|
||
|
err := test.in.Serialize(w, test.pver)
|
||
|
if reflect.TypeOf(err) != reflect.TypeOf(test.writeErr) {
|
||
|
t.Errorf("Alert.Serialize #%d wrong error got: %v, want: %v",
|
||
|
i, err, test.writeErr)
|
||
|
continue
|
||
|
}
|
||
|
|
||
|
var alert wire.Alert
|
||
|
r := newFixedReader(test.max, test.buf)
|
||
|
err = alert.Deserialize(r, test.pver)
|
||
|
if reflect.TypeOf(err) != reflect.TypeOf(test.readErr) {
|
||
|
t.Errorf("Alert.Deserialize #%d wrong error got: %v, want: %v",
|
||
|
i, err, test.readErr)
|
||
|
continue
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// overflow the max number of elements in SetCancel
|
||
|
// maxCountSetCancel + 1 == 8388575 == \xdf\xff\x7f\x00
|
||
|
// replace bytes 29-33
|
||
|
badAlertEncoded := []byte{
|
||
|
0x01, 0x00, 0x00, 0x00, 0x50, 0x6e, 0xb2, 0x4f, 0x00, 0x00, 0x00, 0x00, 0x4c, 0x9e, 0x93, 0x51, //|....Pn.O....L..Q|
|
||
|
0x00, 0x00, 0x00, 0x00, 0xf7, 0x03, 0x00, 0x00, 0xf5, 0x03, 0x00, 0x00, 0xfe, 0xdf, 0xff, 0x7f, //|................|
|
||
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x9e, 0x00, 0x00, 0x01, 0x0f, 0x2f, 0x53, 0x61, 0x74, 0x6f, //|.........../Sato|
|
||
|
0x73, 0x68, 0x69, 0x3a, 0x30, 0x2e, 0x37, 0x2e, 0x32, 0x2f, 0x88, 0x13, 0x00, 0x00, 0x00, 0x06, //|shi:0.7.2/......|
|
||
|
0x55, 0x52, 0x47, 0x45, 0x4e, 0x54, 0x00, //|URGENT.|
|
||
|
}
|
||
|
var alert wire.Alert
|
||
|
r := bytes.NewReader(badAlertEncoded)
|
||
|
err := alert.Deserialize(r, pver)
|
||
|
if _, ok := err.(*wire.MessageError); !ok {
|
||
|
t.Errorf("Alert.Deserialize wrong error got: %T, want: %T",
|
||
|
err, wire.MessageError{})
|
||
|
}
|
||
|
|
||
|
// overflow the max number of elements in SetSubVer
|
||
|
// maxCountSetSubVer + 1 == 131071 + 1 == \x00\x00\x02\x00
|
||
|
// replace bytes 42-46
|
||
|
badAlertEncoded = []byte{
|
||
|
0x01, 0x00, 0x00, 0x00, 0x50, 0x6e, 0xb2, 0x4f, 0x00, 0x00, 0x00, 0x00, 0x4c, 0x9e, 0x93, 0x51, //|....Pn.O....L..Q|
|
||
|
0x00, 0x00, 0x00, 0x00, 0xf7, 0x03, 0x00, 0x00, 0xf5, 0x03, 0x00, 0x00, 0x01, 0xf6, 0x03, 0x00, //|................|
|
||
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x9e, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x02, 0x00, 0x74, 0x6f, //|.........../Sato|
|
||
|
0x73, 0x68, 0x69, 0x3a, 0x30, 0x2e, 0x37, 0x2e, 0x32, 0x2f, 0x88, 0x13, 0x00, 0x00, 0x00, 0x06, //|shi:0.7.2/......|
|
||
|
0x55, 0x52, 0x47, 0x45, 0x4e, 0x54, 0x00, //|URGENT.|
|
||
|
}
|
||
|
r = bytes.NewReader(badAlertEncoded)
|
||
|
err = alert.Deserialize(r, pver)
|
||
|
if _, ok := err.(*wire.MessageError); !ok {
|
||
|
t.Errorf("Alert.Deserialize wrong error got: %T, want: %T",
|
||
|
err, wire.MessageError{})
|
||
|
}
|
||
|
}
|