10a62a37a3
This commit updates the calls into btcutil, btcscript, and btcwire for the latest API changes which remove the need for the protocol version for serialization and deserialization of blocks and transactions.
133 lines
3.1 KiB
Go
133 lines
3.1 KiB
Go
// Copyright (c) 2013 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 btcchain_test
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import (
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"compress/bzip2"
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"encoding/binary"
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"github.com/conformal/btcchain"
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"github.com/conformal/btcdb"
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_ "github.com/conformal/btcdb/sqlite3"
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"github.com/conformal/btcutil"
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"github.com/conformal/btcwire"
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"io"
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"os"
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"path/filepath"
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"strings"
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"testing"
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)
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// TestReorganization loads a set of test blocks which force a chain
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// reorganization to test the block chain handling code.
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// The test blocks were originally from a post on the bitcoin talk forums:
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// https://bitcointalk.org/index.php?topic=46370.msg577556#msg577556
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func TestReorganization(t *testing.T) {
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// Intentionally load the side chain blocks out of order to ensure
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// orphans are handled properly along with chain reorganization.
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testFiles := [...]string{
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"blk_0_to_4.dat.bz2",
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"blk_4A.dat.bz2",
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"blk_5A.dat.bz2",
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"blk_3A.dat.bz2",
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}
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var blocks []*btcutil.Block
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for _, file := range testFiles {
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blockTmp, err := loadBlocks(file)
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if err != nil {
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t.Errorf("Error loading file: %v\n", err)
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}
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for _, block := range blockTmp {
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blocks = append(blocks, block)
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}
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}
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t.Logf("Number of blocks: %v\n", len(blocks))
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dbname := "chaintest"
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_ = os.Remove(dbname)
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db, err := btcdb.CreateDB("sqlite", dbname)
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if err != nil {
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t.Errorf("Error creating db: %v\n", err)
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}
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// Clean up
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defer os.Remove(dbname)
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defer db.Close()
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// Since we're not dealing with the real block chain, disable
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// checkpoints and set the coinbase maturity to 1.
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blockChain := btcchain.New(db, btcwire.MainNet, nil)
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blockChain.DisableCheckpoints(true)
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btcchain.TstSetCoinbaseMaturity(1)
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for i := 1; i < len(blocks); i++ {
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err = blockChain.ProcessBlock(blocks[i])
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if err != nil {
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t.Errorf("ProcessBlock fail on block %v: %v\n", i, err)
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return
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}
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}
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db.Sync()
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return
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}
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// loadBlocks reads files containing bitcoin block data (gzipped but otherwise
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// in the format bitcoind writes) from disk and returns them as an array of
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// btcutil.Block. This is largely borrowed from the test code in btcdb.
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func loadBlocks(filename string) (blocks []*btcutil.Block, err error) {
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filename = filepath.Join("testdata/", filename)
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var network = btcwire.MainNet
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var dr io.Reader
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var fi io.ReadCloser
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fi, err = os.Open(filename)
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if err != nil {
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return
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}
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if strings.HasSuffix(filename, ".bz2") {
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dr = bzip2.NewReader(fi)
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} else {
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dr = fi
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}
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defer fi.Close()
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var block *btcutil.Block
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err = nil
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for height := int64(1); err == nil; height++ {
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var rintbuf uint32
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err = binary.Read(dr, binary.LittleEndian, &rintbuf)
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if err == io.EOF {
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// hit end of file at expected offset: no warning
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height--
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err = nil
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break
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}
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if err != nil {
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break
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}
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if rintbuf != uint32(network) {
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break
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}
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err = binary.Read(dr, binary.LittleEndian, &rintbuf)
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blocklen := rintbuf
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rbytes := make([]byte, blocklen)
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// read block
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dr.Read(rbytes)
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block, err = btcutil.NewBlockFromBytes(rbytes)
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if err != nil {
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return
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}
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blocks = append(blocks, block)
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}
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return
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}
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