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.
261 lines
6.9 KiB
Go
261 lines
6.9 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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"time"
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"github.com/davecgh/go-spew/spew"
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)
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// TestBlockHeader tests the BlockHeader API.
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func TestBlockHeader(t *testing.T) {
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nonce64, err := RandomUint64()
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if err != nil {
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t.Errorf("RandomUint64: Error generating nonce: %v", err)
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}
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nonce := uint32(nonce64)
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hash := mainNetGenesisHash
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merkleHash := mainNetGenesisMerkleRoot
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bits := uint32(0x1d00ffff)
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bh := NewBlockHeader(1, &hash, &merkleHash, bits, nonce)
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// Ensure we get the same data back out.
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if !bh.PrevBlock.IsEqual(&hash) {
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t.Errorf("NewBlockHeader: wrong prev hash - got %v, want %v",
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spew.Sprint(bh.PrevBlock), spew.Sprint(hash))
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}
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if !bh.MerkleRoot.IsEqual(&merkleHash) {
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t.Errorf("NewBlockHeader: wrong merkle root - got %v, want %v",
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spew.Sprint(bh.MerkleRoot), spew.Sprint(merkleHash))
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}
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if bh.Bits != bits {
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t.Errorf("NewBlockHeader: wrong bits - got %v, want %v",
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bh.Bits, bits)
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}
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if bh.Nonce != nonce {
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t.Errorf("NewBlockHeader: wrong nonce - got %v, want %v",
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bh.Nonce, nonce)
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}
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}
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// TestBlockHeaderWire tests the BlockHeader wire encode and decode for various
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// protocol versions.
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func TestBlockHeaderWire(t *testing.T) {
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nonce := uint32(123123) // 0x1e0f3
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pver := uint32(70001)
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// baseBlockHdr is used in the various tests as a baseline BlockHeader.
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bits := uint32(0x1d00ffff)
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baseBlockHdr := &BlockHeader{
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Version: 1,
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PrevBlock: mainNetGenesisHash,
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MerkleRoot: mainNetGenesisMerkleRoot,
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Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
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Bits: bits,
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Nonce: nonce,
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}
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// baseBlockHdrEncoded is the wire encoded bytes of baseBlockHdr.
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baseBlockHdrEncoded := []byte{
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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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0x3b, 0xa3, 0xed, 0xfd, 0x7a, 0x7b, 0x12, 0xb2,
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0x7a, 0xc7, 0x2c, 0x3e, 0x67, 0x76, 0x8f, 0x61,
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0x7f, 0xc8, 0x1b, 0xc3, 0x88, 0x8a, 0x51, 0x32,
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0x3a, 0x9f, 0xb8, 0xaa, 0x4b, 0x1e, 0x5e, 0x4a, // MerkleRoot
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0x29, 0xab, 0x5f, 0x49, // Timestamp
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0xff, 0xff, 0x00, 0x1d, // Bits
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0xf3, 0xe0, 0x01, 0x00, // Nonce
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}
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tests := []struct {
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in *BlockHeader // Data to encode
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out *BlockHeader // Expected decoded data
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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 to use
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}{
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// Latest protocol version.
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{
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baseBlockHdr,
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baseBlockHdr,
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baseBlockHdrEncoded,
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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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baseBlockHdr,
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baseBlockHdr,
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baseBlockHdrEncoded,
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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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baseBlockHdr,
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baseBlockHdr,
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baseBlockHdrEncoded,
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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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baseBlockHdr,
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baseBlockHdr,
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baseBlockHdrEncoded,
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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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baseBlockHdr,
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baseBlockHdr,
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baseBlockHdrEncoded,
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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 to wire format.
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var buf bytes.Buffer
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err := writeBlockHeader(&buf, test.pver, test.in)
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if err != nil {
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t.Errorf("writeBlockHeader #%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("writeBlockHeader #%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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buf.Reset()
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err = test.in.BtcEncode(&buf, pver, 0)
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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 block header from wire format.
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var bh BlockHeader
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rbuf := bytes.NewReader(test.buf)
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err = readBlockHeader(rbuf, test.pver, &bh)
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if err != nil {
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t.Errorf("readBlockHeader #%d error %v", i, err)
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continue
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}
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if !reflect.DeepEqual(&bh, test.out) {
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t.Errorf("readBlockHeader #%d\n got: %s want: %s", i,
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spew.Sdump(&bh), spew.Sdump(test.out))
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continue
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}
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rbuf = bytes.NewReader(test.buf)
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err = bh.BtcDecode(rbuf, 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(&bh, test.out) {
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t.Errorf("BtcDecode #%d\n got: %s want: %s", i,
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spew.Sdump(&bh), 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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// TestBlockHeaderSerialize tests BlockHeader serialize and deserialize.
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func TestBlockHeaderSerialize(t *testing.T) {
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nonce := uint32(123123) // 0x1e0f3
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// baseBlockHdr is used in the various tests as a baseline BlockHeader.
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bits := uint32(0x1d00ffff)
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baseBlockHdr := &BlockHeader{
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Version: 1,
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PrevBlock: mainNetGenesisHash,
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MerkleRoot: mainNetGenesisMerkleRoot,
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Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
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Bits: bits,
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Nonce: nonce,
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}
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// baseBlockHdrEncoded is the wire encoded bytes of baseBlockHdr.
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baseBlockHdrEncoded := []byte{
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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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0x3b, 0xa3, 0xed, 0xfd, 0x7a, 0x7b, 0x12, 0xb2,
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0x7a, 0xc7, 0x2c, 0x3e, 0x67, 0x76, 0x8f, 0x61,
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0x7f, 0xc8, 0x1b, 0xc3, 0x88, 0x8a, 0x51, 0x32,
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0x3a, 0x9f, 0xb8, 0xaa, 0x4b, 0x1e, 0x5e, 0x4a, // MerkleRoot
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0x29, 0xab, 0x5f, 0x49, // Timestamp
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0xff, 0xff, 0x00, 0x1d, // Bits
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0xf3, 0xe0, 0x01, 0x00, // Nonce
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}
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tests := []struct {
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in *BlockHeader // Data to encode
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out *BlockHeader // Expected decoded data
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buf []byte // Serialized data
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}{
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{
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baseBlockHdr,
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baseBlockHdr,
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baseBlockHdrEncoded,
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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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// Serialize the block header.
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var buf bytes.Buffer
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err := test.in.Serialize(&buf)
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if err != nil {
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t.Errorf("Serialize #%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("Serialize #%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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// Deserialize the block header.
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var bh BlockHeader
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rbuf := bytes.NewReader(test.buf)
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err = bh.Deserialize(rbuf)
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if err != nil {
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t.Errorf("Deserialize #%d error %v", i, err)
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continue
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}
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if !reflect.DeepEqual(&bh, test.out) {
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t.Errorf("Deserialize #%d\n got: %s want: %s", i,
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spew.Sdump(&bh), 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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