a4a52ae24f
This commit removes the error returns from the BlockHeader.BlockSha, MsgBlock.BlockSha, and MsgTx.TxSha functions since they can never fail and end up causing a lot of unneeded error checking throughout the code base. It also updates all call sites for the change.
582 lines
18 KiB
Go
582 lines
18 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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"time"
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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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// TestBlock tests the MsgBlock API.
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func TestBlock(t *testing.T) {
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pver := wire.ProtocolVersion
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// Block 1 header.
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prevHash := &blockOne.Header.PrevBlock
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merkleHash := &blockOne.Header.MerkleRoot
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bits := blockOne.Header.Bits
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nonce := blockOne.Header.Nonce
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bh := wire.NewBlockHeader(prevHash, merkleHash, bits, nonce)
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// Ensure the command is expected value.
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wantCmd := "block"
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msg := wire.NewMsgBlock(bh)
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if cmd := msg.Command(); cmd != wantCmd {
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t.Errorf("NewMsgBlock: wrong command - got %v want %v",
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cmd, wantCmd)
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}
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// Ensure max payload is expected value for latest protocol version.
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// Num addresses (varInt) + max allowed addresses.
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wantPayload := uint32(1000000)
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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 we get the same block header data back out.
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if !reflect.DeepEqual(&msg.Header, bh) {
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t.Errorf("NewMsgBlock: wrong block header - got %v, want %v",
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spew.Sdump(&msg.Header), spew.Sdump(bh))
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}
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// Ensure transactions are added properly.
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tx := blockOne.Transactions[0].Copy()
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msg.AddTransaction(tx)
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if !reflect.DeepEqual(msg.Transactions, blockOne.Transactions) {
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t.Errorf("AddTransaction: wrong transactions - got %v, want %v",
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spew.Sdump(msg.Transactions),
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spew.Sdump(blockOne.Transactions))
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}
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// Ensure transactions are properly cleared.
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msg.ClearTransactions()
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if len(msg.Transactions) != 0 {
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t.Errorf("ClearTransactions: wrong transactions - got %v, want %v",
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len(msg.Transactions), 0)
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}
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return
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}
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// TestBlockTxShas tests the ability to generate a slice of all transaction
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// hashes from a block accurately.
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func TestBlockTxShas(t *testing.T) {
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// Block 1, transaction 1 hash.
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hashStr := "0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098"
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wantHash, err := wire.NewShaHashFromStr(hashStr)
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if err != nil {
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t.Errorf("NewShaHashFromStr: %v", err)
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return
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}
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wantShas := []wire.ShaHash{*wantHash}
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shas, err := blockOne.TxShas()
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if err != nil {
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t.Errorf("TxShas: %v", err)
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}
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if !reflect.DeepEqual(shas, wantShas) {
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t.Errorf("TxShas: wrong transaction hashes - got %v, want %v",
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spew.Sdump(shas), spew.Sdump(wantShas))
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}
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}
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// TestBlockSha tests the ability to generate the hash of a block accurately.
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func TestBlockSha(t *testing.T) {
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// Block 1 hash.
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hashStr := "839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048"
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wantHash, err := wire.NewShaHashFromStr(hashStr)
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if err != nil {
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t.Errorf("NewShaHashFromStr: %v", err)
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}
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// Ensure the hash produced is expected.
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blockHash := blockOne.BlockSha()
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if !blockHash.IsEqual(wantHash) {
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t.Errorf("BlockSha: wrong hash - got %v, want %v",
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spew.Sprint(blockHash), spew.Sprint(wantHash))
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}
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}
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// TestBlockWire tests the MsgBlock wire encode and decode for various numbers
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// of transaction inputs and outputs and protocol versions.
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func TestBlockWire(t *testing.T) {
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tests := []struct {
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in *wire.MsgBlock // Message to encode
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out *wire.MsgBlock // Expected decoded message
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buf []byte // Wire encoding
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txLocs []wire.TxLoc // Expected transaction locations
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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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&blockOne,
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&blockOne,
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blockOneBytes,
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blockOneTxLocs,
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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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&blockOne,
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&blockOne,
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blockOneBytes,
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blockOneTxLocs,
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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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&blockOne,
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&blockOne,
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blockOneBytes,
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blockOneTxLocs,
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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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&blockOne,
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&blockOne,
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blockOneBytes,
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blockOneTxLocs,
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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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&blockOne,
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&blockOne,
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blockOneBytes,
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blockOneTxLocs,
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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.MsgBlock
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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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// TestBlockWireErrors performs negative tests against wire encode and decode
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// of MsgBlock to confirm error paths work correctly.
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func TestBlockWireErrors(t *testing.T) {
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// Use protocol version 60002 specifically here instead of the latest
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// because the test data is using bytes encoded with that protocol
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// version.
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pver := uint32(60002)
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tests := []struct {
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in *wire.MsgBlock // 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 version.
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{&blockOne, blockOneBytes, pver, 0, io.ErrShortWrite, io.EOF},
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// Force error in prev block hash.
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{&blockOne, blockOneBytes, pver, 4, io.ErrShortWrite, io.EOF},
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// Force error in merkle root.
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{&blockOne, blockOneBytes, pver, 36, io.ErrShortWrite, io.EOF},
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// Force error in timestamp.
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{&blockOne, blockOneBytes, pver, 68, io.ErrShortWrite, io.EOF},
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// Force error in difficulty bits.
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{&blockOne, blockOneBytes, pver, 72, io.ErrShortWrite, io.EOF},
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// Force error in header nonce.
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{&blockOne, blockOneBytes, pver, 76, io.ErrShortWrite, io.EOF},
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// Force error in transaction count.
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{&blockOne, blockOneBytes, pver, 80, io.ErrShortWrite, io.EOF},
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// Force error in transactions.
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{&blockOne, blockOneBytes, pver, 81, 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 err != 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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// Decode from wire format.
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var msg wire.MsgBlock
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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 err != 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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}
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}
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// TestBlockSerialize tests MsgBlock serialize and deserialize.
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func TestBlockSerialize(t *testing.T) {
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tests := []struct {
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in *wire.MsgBlock // Message to encode
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out *wire.MsgBlock // Expected decoded message
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buf []byte // Serialized data
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txLocs []wire.TxLoc // Expected transaction locations
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}{
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{
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&blockOne,
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&blockOne,
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blockOneBytes,
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blockOneTxLocs,
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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.
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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.
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var block wire.MsgBlock
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rbuf := bytes.NewReader(test.buf)
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err = block.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(&block, test.out) {
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t.Errorf("Deserialize #%d\n got: %s want: %s", i,
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spew.Sdump(&block), spew.Sdump(test.out))
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continue
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}
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// Deserialize the block while gathering transaction location
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// information.
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var txLocBlock wire.MsgBlock
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br := bytes.NewBuffer(test.buf)
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txLocs, err := txLocBlock.DeserializeTxLoc(br)
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if err != nil {
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t.Errorf("DeserializeTxLoc #%d error %v", i, err)
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continue
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}
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if !reflect.DeepEqual(&txLocBlock, test.out) {
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t.Errorf("DeserializeTxLoc #%d\n got: %s want: %s", i,
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spew.Sdump(&txLocBlock), spew.Sdump(test.out))
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continue
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}
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if !reflect.DeepEqual(txLocs, test.txLocs) {
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t.Errorf("DeserializeTxLoc #%d\n got: %s want: %s", i,
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spew.Sdump(txLocs), spew.Sdump(test.txLocs))
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continue
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}
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}
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}
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// TestBlockSerializeErrors performs negative tests against wire encode and
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// decode of MsgBlock to confirm error paths work correctly.
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func TestBlockSerializeErrors(t *testing.T) {
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tests := []struct {
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in *wire.MsgBlock // Value to encode
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buf []byte // Serialized data
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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 version.
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{&blockOne, blockOneBytes, 0, io.ErrShortWrite, io.EOF},
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// Force error in prev block hash.
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{&blockOne, blockOneBytes, 4, io.ErrShortWrite, io.EOF},
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// Force error in merkle root.
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{&blockOne, blockOneBytes, 36, io.ErrShortWrite, io.EOF},
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// Force error in timestamp.
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{&blockOne, blockOneBytes, 68, io.ErrShortWrite, io.EOF},
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// Force error in difficulty bits.
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{&blockOne, blockOneBytes, 72, io.ErrShortWrite, io.EOF},
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// Force error in header nonce.
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{&blockOne, blockOneBytes, 76, io.ErrShortWrite, io.EOF},
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// Force error in transaction count.
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{&blockOne, blockOneBytes, 80, io.ErrShortWrite, io.EOF},
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// Force error in transactions.
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{&blockOne, blockOneBytes, 81, 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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// Serialize the block.
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w := newFixedWriter(test.max)
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err := test.in.Serialize(w)
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if err != test.writeErr {
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t.Errorf("Serialize #%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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// Deserialize the block.
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var block wire.MsgBlock
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r := newFixedReader(test.max, test.buf)
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err = block.Deserialize(r)
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if err != test.readErr {
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t.Errorf("Deserialize #%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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var txLocBlock wire.MsgBlock
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br := bytes.NewBuffer(test.buf[0:test.max])
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_, err = txLocBlock.DeserializeTxLoc(br)
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if err != test.readErr {
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t.Errorf("DeserializeTxLoc #%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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}
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}
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// TestBlockOverflowErrors performs tests to ensure deserializing blocks which
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// are intentionally crafted to use large values for the number of transactions
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// are handled properly. This could otherwise potentially be used as an attack
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// vector.
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func TestBlockOverflowErrors(t *testing.T) {
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// Use protocol version 70001 specifically here instead of the latest
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// protocol version because the test data is using bytes encoded with
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// that version.
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pver := uint32(70001)
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tests := []struct {
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buf []byte // Wire encoding
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pver uint32 // Protocol version for wire encoding
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err error // Expected error
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}{
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// Block that claims to have ~uint64(0) transactions.
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{
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[]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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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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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, // TxnCount
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}, pver, &wire.MessageError{},
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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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// Decode from wire format.
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var msg wire.MsgBlock
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r := bytes.NewReader(test.buf)
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err := msg.BtcDecode(r, test.pver)
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if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
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t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
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i, err, reflect.TypeOf(test.err))
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continue
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}
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// Deserialize from wire format.
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r = bytes.NewReader(test.buf)
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err = msg.Deserialize(r)
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if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
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t.Errorf("Deserialize #%d wrong error got: %v, want: %v",
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i, err, reflect.TypeOf(test.err))
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continue
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}
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// Deserialize with transaction location info from wire format.
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br := bytes.NewBuffer(test.buf)
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_, err = msg.DeserializeTxLoc(br)
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if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
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t.Errorf("DeserializeTxLoc #%d wrong error got: %v, "+
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"want: %v", i, err, reflect.TypeOf(test.err))
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continue
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}
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}
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}
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// TestBlockSerializeSize performs tests to ensure the serialize size for
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// various blocks is accurate.
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func TestBlockSerializeSize(t *testing.T) {
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// Block with no transactions.
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noTxBlock := wire.NewMsgBlock(&blockOne.Header)
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tests := []struct {
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in *wire.MsgBlock // Block to encode
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size int // Expected serialized size
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}{
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// Block with no transactions.
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{noTxBlock, 81},
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// First block in the mainnet block chain.
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{&blockOne, len(blockOneBytes)},
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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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serializedSize := test.in.SerializeSize()
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if serializedSize != test.size {
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t.Errorf("MsgBlock.SerializeSize: #%d got: %d, want: "+
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"%d", i, serializedSize, test.size)
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continue
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}
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}
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}
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var blockOne = wire.MsgBlock{
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Header: wire.BlockHeader{
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Version: 1,
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PrevBlock: wire.ShaHash([wire.HashSize]byte{ // Make go vet happy.
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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,
|
|
0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
}),
|
|
MerkleRoot: wire.ShaHash([wire.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: []*wire.MsgTx{
|
|
{
|
|
Version: 1,
|
|
TxIn: []*wire.TxIn{
|
|
{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: wire.ShaHash{},
|
|
Index: 0xffffffff,
|
|
},
|
|
SignatureScript: []byte{
|
|
0x04, 0xff, 0xff, 0x00, 0x1d, 0x01, 0x04,
|
|
},
|
|
Sequence: 0xffffffff,
|
|
},
|
|
},
|
|
TxOut: []*wire.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 = []wire.TxLoc{
|
|
{TxStart: 81, TxLen: 134},
|
|
}
|