2eef3720a9
This commit contains the entire btcwire repository along with several changes needed to move all of the files into the wire directory in order to prepare it for merging. This does NOT update btcd or any of the other packages to use the new location as that will be done separately. - All import paths in the old btcwire test files have been changed to the new location - All references to btcwire as the package name have been chagned to wire - The coveralls badge has been removed since it unfortunately doesn't support coverage of sub-packages This is ongoing work toward #214.
350 lines
10 KiB
Go
350 lines
10 KiB
Go
// Copyright (c) 2013-2015 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 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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// TestHeaders tests the MsgHeaders API.
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func TestHeaders(t *testing.T) {
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pver := uint32(60002)
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// Ensure the command is expected value.
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wantCmd := "headers"
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msg := wire.NewMsgHeaders()
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if cmd := msg.Command(); cmd != wantCmd {
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t.Errorf("NewMsgHeaders: 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 headers (varInt) + max allowed headers (header length + 1 byte
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// for the number of transactions which is always 0).
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wantPayload := uint32(162009)
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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 headers are added properly.
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bh := &blockOne.Header
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msg.AddBlockHeader(bh)
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if !reflect.DeepEqual(msg.Headers[0], bh) {
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t.Errorf("AddHeader: wrong header - got %v, want %v",
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spew.Sdump(msg.Headers),
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spew.Sdump(bh))
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}
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// Ensure adding more than the max allowed headers per message returns
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// error.
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var err error
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for i := 0; i < wire.MaxBlockHeadersPerMsg+1; i++ {
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err = msg.AddBlockHeader(bh)
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}
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if reflect.TypeOf(err) != reflect.TypeOf(&wire.MessageError{}) {
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t.Errorf("AddBlockHeader: expected error on too many headers " +
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"not received")
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}
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return
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}
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// TestHeadersWire tests the MsgHeaders wire encode and decode for various
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// numbers of headers and protocol versions.
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func TestHeadersWire(t *testing.T) {
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hash := mainNetGenesisHash
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merkleHash := blockOne.Header.MerkleRoot
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bits := uint32(0x1d00ffff)
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nonce := uint32(0x9962e301)
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bh := wire.NewBlockHeader(&hash, &merkleHash, bits, nonce)
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bh.Version = blockOne.Header.Version
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bh.Timestamp = blockOne.Header.Timestamp
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// Empty headers message.
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noHeaders := wire.NewMsgHeaders()
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noHeadersEncoded := []byte{
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0x00, // Varint for number of headers
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}
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// Headers message with one header.
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oneHeader := wire.NewMsgHeaders()
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oneHeader.AddBlockHeader(bh)
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oneHeaderEncoded := []byte{
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0x01, // VarInt for number of headers.
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0x01, 0x00, 0x00, 0x00, // Version 1
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0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
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0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
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0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
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0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
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0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
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0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
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0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
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0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
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0x61, 0xbc, 0x66, 0x49, // Timestamp
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0xff, 0xff, 0x00, 0x1d, // Bits
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0x01, 0xe3, 0x62, 0x99, // Nonce
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0x00, // TxnCount (0 for headers message)
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}
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tests := []struct {
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in *wire.MsgHeaders // Message to encode
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out *wire.MsgHeaders // 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 headers.
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{
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noHeaders,
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noHeaders,
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noHeadersEncoded,
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wire.ProtocolVersion,
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},
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// Latest protocol version with one header.
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{
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oneHeader,
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oneHeader,
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oneHeaderEncoded,
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wire.ProtocolVersion,
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},
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// Protocol version BIP0035Version with no headers.
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{
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noHeaders,
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noHeaders,
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noHeadersEncoded,
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wire.BIP0035Version,
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},
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// Protocol version BIP0035Version with one header.
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{
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oneHeader,
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oneHeader,
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oneHeaderEncoded,
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wire.BIP0035Version,
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},
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// Protocol version BIP0031Version with no headers.
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{
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noHeaders,
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noHeaders,
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noHeadersEncoded,
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wire.BIP0031Version,
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},
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// Protocol version BIP0031Version with one header.
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{
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oneHeader,
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oneHeader,
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oneHeaderEncoded,
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wire.BIP0031Version,
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},
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// Protocol version NetAddressTimeVersion with no headers.
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{
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noHeaders,
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noHeaders,
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noHeadersEncoded,
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wire.NetAddressTimeVersion,
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},
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// Protocol version NetAddressTimeVersion with one header.
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{
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oneHeader,
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oneHeader,
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oneHeaderEncoded,
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wire.NetAddressTimeVersion,
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},
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// Protocol version MultipleAddressVersion with no headers.
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{
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noHeaders,
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noHeaders,
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noHeadersEncoded,
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wire.MultipleAddressVersion,
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},
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// Protocol version MultipleAddressVersion with one header.
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{
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oneHeader,
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oneHeader,
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oneHeaderEncoded,
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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.MsgHeaders
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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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// TestHeadersWireErrors performs negative tests against wire encode and decode
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// of MsgHeaders to confirm error paths work correctly.
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func TestHeadersWireErrors(t *testing.T) {
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pver := wire.ProtocolVersion
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wireErr := &wire.MessageError{}
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hash := mainNetGenesisHash
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merkleHash := blockOne.Header.MerkleRoot
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bits := uint32(0x1d00ffff)
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nonce := uint32(0x9962e301)
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bh := wire.NewBlockHeader(&hash, &merkleHash, bits, nonce)
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bh.Version = blockOne.Header.Version
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bh.Timestamp = blockOne.Header.Timestamp
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// Headers message with one header.
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oneHeader := wire.NewMsgHeaders()
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oneHeader.AddBlockHeader(bh)
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oneHeaderEncoded := []byte{
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0x01, // VarInt for number of headers.
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0x01, 0x00, 0x00, 0x00, // Version 1
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0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
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0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
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0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
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0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
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0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
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0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
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0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
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0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
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0x61, 0xbc, 0x66, 0x49, // Timestamp
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0xff, 0xff, 0x00, 0x1d, // Bits
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0x01, 0xe3, 0x62, 0x99, // Nonce
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0x00, // TxnCount (0 for headers message)
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}
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// Message that forces an error by having more than the max allowed
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// headers.
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maxHeaders := wire.NewMsgHeaders()
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for i := 0; i < wire.MaxBlockHeadersPerMsg; i++ {
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maxHeaders.AddBlockHeader(bh)
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}
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maxHeaders.Headers = append(maxHeaders.Headers, bh)
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maxHeadersEncoded := []byte{
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0xfd, 0xd1, 0x07, // Varint for number of addresses (2001)7D1
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}
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// Intentionally invalid block header that has a transaction count used
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// to force errors.
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bhTrans := wire.NewBlockHeader(&hash, &merkleHash, bits, nonce)
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bhTrans.Version = blockOne.Header.Version
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bhTrans.Timestamp = blockOne.Header.Timestamp
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transHeader := wire.NewMsgHeaders()
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transHeader.AddBlockHeader(bhTrans)
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transHeaderEncoded := []byte{
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0x01, // VarInt for number of headers.
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0x01, 0x00, 0x00, 0x00, // Version 1
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0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
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0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
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0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
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0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
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0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
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0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
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0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
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0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
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0x61, 0xbc, 0x66, 0x49, // Timestamp
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0xff, 0xff, 0x00, 0x1d, // Bits
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0x01, 0xe3, 0x62, 0x99, // Nonce
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0x01, // TxnCount (should be 0 for headers message, but 1 to force error)
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}
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tests := []struct {
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in *wire.MsgHeaders // 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 header count.
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{oneHeader, oneHeaderEncoded, pver, 0, io.ErrShortWrite, io.EOF},
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// Force error in block header.
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{oneHeader, oneHeaderEncoded, pver, 5, io.ErrShortWrite, io.EOF},
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// Force error with greater than max headers.
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{maxHeaders, maxHeadersEncoded, pver, 3, wireErr, wireErr},
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// Force error with number of transactions.
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{transHeader, transHeaderEncoded, pver, 81, io.ErrShortWrite, io.EOF},
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// Force error with included transactions.
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{transHeader, transHeaderEncoded, pver, len(transHeaderEncoded), nil, wireErr},
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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.MsgHeaders
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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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}
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