lbcd/wire/msgblock_test.go
Dave Collins c440584efc
Implement infrastructure for BIP0009.
This commit adds all of the infrastructure needed to support BIP0009
soft forks.

The following is an overview of the changes:

- Add new configuration options to the chaincfg package which allows the
  rule deployments to be defined per chain
- Implement code to calculate the threshold state as required by BIP0009
  - Use threshold state caches that are stored to the database in order
    to accelerate startup time
  - Remove caches that are invalid due to definition changes in the
    params including additions, deletions, and changes to existing
    entries
- Detect and warn when a new unknown rule is about to activate or has
  been activated in the block connection code
- Detect and warn when 50% of the last 100 blocks have unexpected
  versions.
- Remove the latest block version from wire since it no longer applies
- Add a version parameter to the wire.NewBlockHeader function since the
  default is no longer available
- Update the miner block template generation code to use the calculated
  block version based on the currently defined rule deployments and
  their threshold states as of the previous block
- Add tests for new error type
- Add tests for threshold state cache
2016-11-30 13:51:59 -06:00

582 lines
17 KiB
Go

// Copyright (c) 2013-2016 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package wire
import (
"bytes"
"io"
"reflect"
"testing"
"time"
"github.com/btcsuite/btcd/chaincfg/chainhash"
"github.com/davecgh/go-spew/spew"
)
// TestBlock tests the MsgBlock API.
func TestBlock(t *testing.T) {
pver := ProtocolVersion
// Block 1 header.
prevHash := &blockOne.Header.PrevBlock
merkleHash := &blockOne.Header.MerkleRoot
bits := blockOne.Header.Bits
nonce := blockOne.Header.Nonce
bh := NewBlockHeader(1, prevHash, merkleHash, bits, nonce)
// Ensure the command is expected value.
wantCmd := "block"
msg := NewMsgBlock(bh)
if cmd := msg.Command(); cmd != wantCmd {
t.Errorf("NewMsgBlock: wrong command - got %v want %v",
cmd, wantCmd)
}
// Ensure max payload is expected value for latest protocol version.
// Num addresses (varInt) + max allowed addresses.
wantPayload := uint32(1000000)
maxPayload := msg.MaxPayloadLength(pver)
if maxPayload != wantPayload {
t.Errorf("MaxPayloadLength: wrong max payload length for "+
"protocol version %d - got %v, want %v", pver,
maxPayload, wantPayload)
}
// Ensure we get the same block header data back out.
if !reflect.DeepEqual(&msg.Header, bh) {
t.Errorf("NewMsgBlock: wrong block header - got %v, want %v",
spew.Sdump(&msg.Header), spew.Sdump(bh))
}
// Ensure transactions are added properly.
tx := blockOne.Transactions[0].Copy()
msg.AddTransaction(tx)
if !reflect.DeepEqual(msg.Transactions, blockOne.Transactions) {
t.Errorf("AddTransaction: wrong transactions - got %v, want %v",
spew.Sdump(msg.Transactions),
spew.Sdump(blockOne.Transactions))
}
// Ensure transactions are properly cleared.
msg.ClearTransactions()
if len(msg.Transactions) != 0 {
t.Errorf("ClearTransactions: wrong transactions - got %v, want %v",
len(msg.Transactions), 0)
}
return
}
// TestBlockTxHashes tests the ability to generate a slice of all transaction
// hashes from a block accurately.
func TestBlockTxHashes(t *testing.T) {
// Block 1, transaction 1 hash.
hashStr := "0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098"
wantHash, err := chainhash.NewHashFromStr(hashStr)
if err != nil {
t.Errorf("NewHashFromStr: %v", err)
return
}
wantHashes := []chainhash.Hash{*wantHash}
hashes, err := blockOne.TxHashes()
if err != nil {
t.Errorf("TxHashes: %v", err)
}
if !reflect.DeepEqual(hashes, wantHashes) {
t.Errorf("TxHashes: wrong transaction hashes - got %v, want %v",
spew.Sdump(hashes), spew.Sdump(wantHashes))
}
}
// TestBlockHash tests the ability to generate the hash of a block accurately.
func TestBlockHash(t *testing.T) {
// Block 1 hash.
hashStr := "839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048"
wantHash, err := chainhash.NewHashFromStr(hashStr)
if err != nil {
t.Errorf("NewHashFromStr: %v", err)
}
// Ensure the hash produced is expected.
blockHash := blockOne.BlockHash()
if !blockHash.IsEqual(wantHash) {
t.Errorf("BlockHash: wrong hash - got %v, want %v",
spew.Sprint(blockHash), spew.Sprint(wantHash))
}
}
// TestBlockWire tests the MsgBlock wire encode and decode for various numbers
// of transaction inputs and outputs and protocol versions.
func TestBlockWire(t *testing.T) {
tests := []struct {
in *MsgBlock // Message to encode
out *MsgBlock // Expected decoded message
buf []byte // Wire encoding
txLocs []TxLoc // Expected transaction locations
pver uint32 // Protocol version for wire encoding
}{
// Latest protocol version.
{
&blockOne,
&blockOne,
blockOneBytes,
blockOneTxLocs,
ProtocolVersion,
},
// Protocol version BIP0035Version.
{
&blockOne,
&blockOne,
blockOneBytes,
blockOneTxLocs,
BIP0035Version,
},
// Protocol version BIP0031Version.
{
&blockOne,
&blockOne,
blockOneBytes,
blockOneTxLocs,
BIP0031Version,
},
// Protocol version NetAddressTimeVersion.
{
&blockOne,
&blockOne,
blockOneBytes,
blockOneTxLocs,
NetAddressTimeVersion,
},
// Protocol version MultipleAddressVersion.
{
&blockOne,
&blockOne,
blockOneBytes,
blockOneTxLocs,
MultipleAddressVersion,
},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode the message to wire format.
var buf bytes.Buffer
err := test.in.BtcEncode(&buf, test.pver)
if err != nil {
t.Errorf("BtcEncode #%d error %v", i, err)
continue
}
if !bytes.Equal(buf.Bytes(), test.buf) {
t.Errorf("BtcEncode #%d\n got: %s want: %s", i,
spew.Sdump(buf.Bytes()), spew.Sdump(test.buf))
continue
}
// Decode the message from wire format.
var msg MsgBlock
rbuf := bytes.NewReader(test.buf)
err = msg.BtcDecode(rbuf, test.pver)
if err != nil {
t.Errorf("BtcDecode #%d error %v", i, err)
continue
}
if !reflect.DeepEqual(&msg, test.out) {
t.Errorf("BtcDecode #%d\n got: %s want: %s", i,
spew.Sdump(&msg), spew.Sdump(test.out))
continue
}
}
}
// TestBlockWireErrors performs negative tests against wire encode and decode
// of MsgBlock to confirm error paths work correctly.
func TestBlockWireErrors(t *testing.T) {
// Use protocol version 60002 specifically here instead of the latest
// because the test data is using bytes encoded with that protocol
// version.
pver := uint32(60002)
tests := []struct {
in *MsgBlock // Value to encode
buf []byte // Wire encoding
pver uint32 // Protocol version for wire encoding
max int // Max size of fixed buffer to induce errors
writeErr error // Expected write error
readErr error // Expected read error
}{
// Force error in version.
{&blockOne, blockOneBytes, pver, 0, io.ErrShortWrite, io.EOF},
// Force error in prev block hash.
{&blockOne, blockOneBytes, pver, 4, io.ErrShortWrite, io.EOF},
// Force error in merkle root.
{&blockOne, blockOneBytes, pver, 36, io.ErrShortWrite, io.EOF},
// Force error in timestamp.
{&blockOne, blockOneBytes, pver, 68, io.ErrShortWrite, io.EOF},
// Force error in difficulty bits.
{&blockOne, blockOneBytes, pver, 72, io.ErrShortWrite, io.EOF},
// Force error in header nonce.
{&blockOne, blockOneBytes, pver, 76, io.ErrShortWrite, io.EOF},
// Force error in transaction count.
{&blockOne, blockOneBytes, pver, 80, io.ErrShortWrite, io.EOF},
// Force error in transactions.
{&blockOne, blockOneBytes, pver, 81, io.ErrShortWrite, io.EOF},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Encode to wire format.
w := newFixedWriter(test.max)
err := test.in.BtcEncode(w, test.pver)
if err != test.writeErr {
t.Errorf("BtcEncode #%d wrong error got: %v, want: %v",
i, err, test.writeErr)
continue
}
// Decode from wire format.
var msg MsgBlock
r := newFixedReader(test.max, test.buf)
err = msg.BtcDecode(r, test.pver)
if err != test.readErr {
t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
i, err, test.readErr)
continue
}
}
}
// TestBlockSerialize tests MsgBlock serialize and deserialize.
func TestBlockSerialize(t *testing.T) {
tests := []struct {
in *MsgBlock // Message to encode
out *MsgBlock // Expected decoded message
buf []byte // Serialized data
txLocs []TxLoc // Expected transaction locations
}{
{
&blockOne,
&blockOne,
blockOneBytes,
blockOneTxLocs,
},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Serialize the block.
var buf bytes.Buffer
err := test.in.Serialize(&buf)
if err != nil {
t.Errorf("Serialize #%d error %v", i, err)
continue
}
if !bytes.Equal(buf.Bytes(), test.buf) {
t.Errorf("Serialize #%d\n got: %s want: %s", i,
spew.Sdump(buf.Bytes()), spew.Sdump(test.buf))
continue
}
// Deserialize the block.
var block MsgBlock
rbuf := bytes.NewReader(test.buf)
err = block.Deserialize(rbuf)
if err != nil {
t.Errorf("Deserialize #%d error %v", i, err)
continue
}
if !reflect.DeepEqual(&block, test.out) {
t.Errorf("Deserialize #%d\n got: %s want: %s", i,
spew.Sdump(&block), spew.Sdump(test.out))
continue
}
// Deserialize the block while gathering transaction location
// information.
var txLocBlock MsgBlock
br := bytes.NewBuffer(test.buf)
txLocs, err := txLocBlock.DeserializeTxLoc(br)
if err != nil {
t.Errorf("DeserializeTxLoc #%d error %v", i, err)
continue
}
if !reflect.DeepEqual(&txLocBlock, test.out) {
t.Errorf("DeserializeTxLoc #%d\n got: %s want: %s", i,
spew.Sdump(&txLocBlock), spew.Sdump(test.out))
continue
}
if !reflect.DeepEqual(txLocs, test.txLocs) {
t.Errorf("DeserializeTxLoc #%d\n got: %s want: %s", i,
spew.Sdump(txLocs), spew.Sdump(test.txLocs))
continue
}
}
}
// TestBlockSerializeErrors performs negative tests against wire encode and
// decode of MsgBlock to confirm error paths work correctly.
func TestBlockSerializeErrors(t *testing.T) {
tests := []struct {
in *MsgBlock // Value to encode
buf []byte // Serialized data
max int // Max size of fixed buffer to induce errors
writeErr error // Expected write error
readErr error // Expected read error
}{
// Force error in version.
{&blockOne, blockOneBytes, 0, io.ErrShortWrite, io.EOF},
// Force error in prev block hash.
{&blockOne, blockOneBytes, 4, io.ErrShortWrite, io.EOF},
// Force error in merkle root.
{&blockOne, blockOneBytes, 36, io.ErrShortWrite, io.EOF},
// Force error in timestamp.
{&blockOne, blockOneBytes, 68, io.ErrShortWrite, io.EOF},
// Force error in difficulty bits.
{&blockOne, blockOneBytes, 72, io.ErrShortWrite, io.EOF},
// Force error in header nonce.
{&blockOne, blockOneBytes, 76, io.ErrShortWrite, io.EOF},
// Force error in transaction count.
{&blockOne, blockOneBytes, 80, io.ErrShortWrite, io.EOF},
// Force error in transactions.
{&blockOne, blockOneBytes, 81, io.ErrShortWrite, io.EOF},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Serialize the block.
w := newFixedWriter(test.max)
err := test.in.Serialize(w)
if err != test.writeErr {
t.Errorf("Serialize #%d wrong error got: %v, want: %v",
i, err, test.writeErr)
continue
}
// Deserialize the block.
var block MsgBlock
r := newFixedReader(test.max, test.buf)
err = block.Deserialize(r)
if err != test.readErr {
t.Errorf("Deserialize #%d wrong error got: %v, want: %v",
i, err, test.readErr)
continue
}
var txLocBlock MsgBlock
br := bytes.NewBuffer(test.buf[0:test.max])
_, err = txLocBlock.DeserializeTxLoc(br)
if err != test.readErr {
t.Errorf("DeserializeTxLoc #%d wrong error got: %v, want: %v",
i, err, test.readErr)
continue
}
}
}
// TestBlockOverflowErrors performs tests to ensure deserializing blocks which
// are intentionally crafted to use large values for the number of transactions
// are handled properly. This could otherwise potentially be used as an attack
// vector.
func TestBlockOverflowErrors(t *testing.T) {
// Use protocol version 70001 specifically here instead of the latest
// protocol version because the test data is using bytes encoded with
// that version.
pver := uint32(70001)
tests := []struct {
buf []byte // Wire encoding
pver uint32 // Protocol version for wire encoding
err error // Expected error
}{
// Block that claims to have ~uint64(0) transactions.
{
[]byte{
0x01, 0x00, 0x00, 0x00, // Version 1
0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
0x61, 0xbc, 0x66, 0x49, // Timestamp
0xff, 0xff, 0x00, 0x1d, // Bits
0x01, 0xe3, 0x62, 0x99, // Nonce
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, // TxnCount
}, pver, &MessageError{},
},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
// Decode from wire format.
var msg MsgBlock
r := bytes.NewReader(test.buf)
err := msg.BtcDecode(r, test.pver)
if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
i, err, reflect.TypeOf(test.err))
continue
}
// Deserialize from wire format.
r = bytes.NewReader(test.buf)
err = msg.Deserialize(r)
if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
t.Errorf("Deserialize #%d wrong error got: %v, want: %v",
i, err, reflect.TypeOf(test.err))
continue
}
// Deserialize with transaction location info from wire format.
br := bytes.NewBuffer(test.buf)
_, err = msg.DeserializeTxLoc(br)
if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
t.Errorf("DeserializeTxLoc #%d wrong error got: %v, "+
"want: %v", i, err, reflect.TypeOf(test.err))
continue
}
}
}
// TestBlockSerializeSize performs tests to ensure the serialize size for
// various blocks is accurate.
func TestBlockSerializeSize(t *testing.T) {
// Block with no transactions.
noTxBlock := NewMsgBlock(&blockOne.Header)
tests := []struct {
in *MsgBlock // Block to encode
size int // Expected serialized size
}{
// Block with no transactions.
{noTxBlock, 81},
// First block in the mainnet block chain.
{&blockOne, len(blockOneBytes)},
}
t.Logf("Running %d tests", len(tests))
for i, test := range tests {
serializedSize := test.in.SerializeSize()
if serializedSize != test.size {
t.Errorf("MsgBlock.SerializeSize: #%d got: %d, want: "+
"%d", i, serializedSize, test.size)
continue
}
}
}
// blockOne is the first block in the mainnet block chain.
var blockOne = MsgBlock{
Header: BlockHeader{
Version: 1,
PrevBlock: chainhash.Hash([chainhash.HashSize]byte{ // Make go vet happy.
0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00,
}),
MerkleRoot: chainhash.Hash([chainhash.HashSize]byte{ // Make go vet happy.
0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e,
}),
Timestamp: time.Unix(0x4966bc61, 0), // 2009-01-08 20:54:25 -0600 CST
Bits: 0x1d00ffff, // 486604799
Nonce: 0x9962e301, // 2573394689
},
Transactions: []*MsgTx{
{
Version: 1,
TxIn: []*TxIn{
{
PreviousOutPoint: OutPoint{
Hash: chainhash.Hash{},
Index: 0xffffffff,
},
SignatureScript: []byte{
0x04, 0xff, 0xff, 0x00, 0x1d, 0x01, 0x04,
},
Sequence: 0xffffffff,
},
},
TxOut: []*TxOut{
{
Value: 0x12a05f200,
PkScript: []byte{
0x41, // OP_DATA_65
0x04, 0x96, 0xb5, 0x38, 0xe8, 0x53, 0x51, 0x9c,
0x72, 0x6a, 0x2c, 0x91, 0xe6, 0x1e, 0xc1, 0x16,
0x00, 0xae, 0x13, 0x90, 0x81, 0x3a, 0x62, 0x7c,
0x66, 0xfb, 0x8b, 0xe7, 0x94, 0x7b, 0xe6, 0x3c,
0x52, 0xda, 0x75, 0x89, 0x37, 0x95, 0x15, 0xd4,
0xe0, 0xa6, 0x04, 0xf8, 0x14, 0x17, 0x81, 0xe6,
0x22, 0x94, 0x72, 0x11, 0x66, 0xbf, 0x62, 0x1e,
0x73, 0xa8, 0x2c, 0xbf, 0x23, 0x42, 0xc8, 0x58,
0xee, // 65-byte signature
0xac, // OP_CHECKSIG
},
},
},
LockTime: 0,
},
},
}
// Block one serialized bytes.
var blockOneBytes = []byte{
0x01, 0x00, 0x00, 0x00, // Version 1
0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
0x61, 0xbc, 0x66, 0x49, // Timestamp
0xff, 0xff, 0x00, 0x1d, // Bits
0x01, 0xe3, 0x62, 0x99, // Nonce
0x01, // TxnCount
0x01, 0x00, 0x00, 0x00, // Version
0x01, // Varint for number of transaction inputs
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Previous output hash
0xff, 0xff, 0xff, 0xff, // Prevous output index
0x07, // Varint for length of signature script
0x04, 0xff, 0xff, 0x00, 0x1d, 0x01, 0x04, // Signature script (coinbase)
0xff, 0xff, 0xff, 0xff, // Sequence
0x01, // Varint for number of transaction outputs
0x00, 0xf2, 0x05, 0x2a, 0x01, 0x00, 0x00, 0x00, // Transaction amount
0x43, // Varint for length of pk script
0x41, // OP_DATA_65
0x04, 0x96, 0xb5, 0x38, 0xe8, 0x53, 0x51, 0x9c,
0x72, 0x6a, 0x2c, 0x91, 0xe6, 0x1e, 0xc1, 0x16,
0x00, 0xae, 0x13, 0x90, 0x81, 0x3a, 0x62, 0x7c,
0x66, 0xfb, 0x8b, 0xe7, 0x94, 0x7b, 0xe6, 0x3c,
0x52, 0xda, 0x75, 0x89, 0x37, 0x95, 0x15, 0xd4,
0xe0, 0xa6, 0x04, 0xf8, 0x14, 0x17, 0x81, 0xe6,
0x22, 0x94, 0x72, 0x11, 0x66, 0xbf, 0x62, 0x1e,
0x73, 0xa8, 0x2c, 0xbf, 0x23, 0x42, 0xc8, 0x58,
0xee, // 65-byte uncompressed public key
0xac, // OP_CHECKSIG
0x00, 0x00, 0x00, 0x00, // Lock time
}
// Transaction location information for block one transactions.
var blockOneTxLocs = []TxLoc{
{TxStart: 81, TxLen: 134},
}