310 lines
9.6 KiB
Go
310 lines
9.6 KiB
Go
// Copyright (c) 2016 The Decred developers
|
|
// Copyright (c) 2016-2017 The btcsuite developers
|
|
// Use of this source code is governed by an ISC
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package blockchain_test
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
"testing"
|
|
|
|
"github.com/lbryio/lbcd/blockchain"
|
|
"github.com/lbryio/lbcd/blockchain/fullblocktests"
|
|
"github.com/lbryio/lbcd/chaincfg"
|
|
"github.com/lbryio/lbcd/chaincfg/chainhash"
|
|
"github.com/lbryio/lbcd/database"
|
|
_ "github.com/lbryio/lbcd/database/ffldb"
|
|
"github.com/lbryio/lbcd/txscript"
|
|
"github.com/lbryio/lbcd/wire"
|
|
btcutil "github.com/lbryio/lbcutil"
|
|
)
|
|
|
|
const (
|
|
// testDbType is the database backend type to use for the tests.
|
|
testDbType = "ffldb"
|
|
|
|
// testDbRoot is the root directory used to create all test databases.
|
|
testDbRoot = "testdbs"
|
|
|
|
// blockDataNet is the expected network in the test block data.
|
|
blockDataNet = wire.MainNet
|
|
)
|
|
|
|
// filesExists returns whether or not the named file or directory exists.
|
|
func fileExists(name string) bool {
|
|
if _, err := os.Stat(name); err != nil {
|
|
if os.IsNotExist(err) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// isSupportedDbType returns whether or not the passed database type is
|
|
// currently supported.
|
|
func isSupportedDbType(dbType string) bool {
|
|
supportedDrivers := database.SupportedDrivers()
|
|
for _, driver := range supportedDrivers {
|
|
if dbType == driver {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// chainSetup is used to create a new db and chain instance with the genesis
|
|
// block already inserted. In addition to the new chain instance, it returns
|
|
// a teardown function the caller should invoke when done testing to clean up.
|
|
func chainSetup(dbName string, params *chaincfg.Params) (*blockchain.BlockChain, func(), error) {
|
|
if !isSupportedDbType(testDbType) {
|
|
return nil, nil, fmt.Errorf("unsupported db type %v", testDbType)
|
|
}
|
|
|
|
// Handle memory database specially since it doesn't need the disk
|
|
// specific handling.
|
|
var db database.DB
|
|
var teardown func()
|
|
if testDbType == "memdb" {
|
|
ndb, err := database.Create(testDbType)
|
|
if err != nil {
|
|
return nil, nil, fmt.Errorf("error creating db: %v", err)
|
|
}
|
|
db = ndb
|
|
|
|
// Setup a teardown function for cleaning up. This function is
|
|
// returned to the caller to be invoked when it is done testing.
|
|
teardown = func() {
|
|
db.Close()
|
|
}
|
|
} else {
|
|
// Create the root directory for test databases.
|
|
if !fileExists(testDbRoot) {
|
|
if err := os.MkdirAll(testDbRoot, 0700); err != nil {
|
|
err := fmt.Errorf("unable to create test db "+
|
|
"root: %v", err)
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
|
|
// Create a new database to store the accepted blocks into.
|
|
dbPath := filepath.Join(testDbRoot, dbName)
|
|
_ = os.RemoveAll(dbPath)
|
|
ndb, err := database.Create(testDbType, dbPath, blockDataNet)
|
|
if err != nil {
|
|
return nil, nil, fmt.Errorf("error creating db: %v", err)
|
|
}
|
|
db = ndb
|
|
|
|
// Setup a teardown function for cleaning up. This function is
|
|
// returned to the caller to be invoked when it is done testing.
|
|
teardown = func() {
|
|
db.Close()
|
|
os.RemoveAll(dbPath)
|
|
os.RemoveAll(testDbRoot)
|
|
}
|
|
}
|
|
|
|
// Copy the chain params to ensure any modifications the tests do to
|
|
// the chain parameters do not affect the global instance.
|
|
paramsCopy := *params
|
|
|
|
// Create the main chain instance.
|
|
chain, err := blockchain.New(&blockchain.Config{
|
|
DB: db,
|
|
ChainParams: ¶msCopy,
|
|
Checkpoints: nil,
|
|
TimeSource: blockchain.NewMedianTime(),
|
|
SigCache: txscript.NewSigCache(1000),
|
|
})
|
|
if err != nil {
|
|
teardown()
|
|
err := fmt.Errorf("failed to create chain instance: %v", err)
|
|
return nil, nil, err
|
|
}
|
|
return chain, teardown, nil
|
|
}
|
|
|
|
// TestFullBlocks ensures all tests generated by the fullblocktests package
|
|
// have the expected result when processed via ProcessBlock.
|
|
func TestFullBlocks(t *testing.T) {
|
|
tests, err := fullblocktests.Generate(false)
|
|
if err != nil {
|
|
t.Fatalf("failed to generate tests: %v", err)
|
|
}
|
|
|
|
// Create a new database and chain instance to run tests against.
|
|
chain, teardownFunc, err := chainSetup("fullblocktest",
|
|
&chaincfg.RegressionNetParams)
|
|
if err != nil {
|
|
t.Errorf("Failed to setup chain instance: %v", err)
|
|
return
|
|
}
|
|
defer teardownFunc()
|
|
|
|
// testAcceptedBlock attempts to process the block in the provided test
|
|
// instance and ensures that it was accepted according to the flags
|
|
// specified in the test.
|
|
testAcceptedBlock := func(item fullblocktests.AcceptedBlock) {
|
|
blockHeight := item.Height
|
|
block := btcutil.NewBlock(item.Block)
|
|
block.SetHeight(blockHeight)
|
|
t.Logf("Testing block %s (hash %s, height %d)",
|
|
item.Name, block.Hash(), blockHeight)
|
|
|
|
isMainChain, isOrphan, err := chain.ProcessBlock(block,
|
|
blockchain.BFNone)
|
|
if err != nil {
|
|
t.Fatalf("block %q (hash %s, height %d) should "+
|
|
"have been accepted: %v", item.Name,
|
|
block.Hash(), blockHeight, err)
|
|
}
|
|
|
|
// Ensure the main chain and orphan flags match the values
|
|
// specified in the test.
|
|
if isMainChain != item.IsMainChain {
|
|
t.Fatalf("block %q (hash %s, height %d) unexpected main "+
|
|
"chain flag -- got %v, want %v", item.Name,
|
|
block.Hash(), blockHeight, isMainChain,
|
|
item.IsMainChain)
|
|
}
|
|
if isOrphan != item.IsOrphan {
|
|
t.Fatalf("block %q (hash %s, height %d) unexpected "+
|
|
"orphan flag -- got %v, want %v", item.Name,
|
|
block.Hash(), blockHeight, isOrphan,
|
|
item.IsOrphan)
|
|
}
|
|
}
|
|
|
|
// testRejectedBlock attempts to process the block in the provided test
|
|
// instance and ensures that it was rejected with the reject code
|
|
// specified in the test.
|
|
testRejectedBlock := func(item fullblocktests.RejectedBlock) {
|
|
blockHeight := item.Height
|
|
block := btcutil.NewBlock(item.Block)
|
|
block.SetHeight(blockHeight)
|
|
t.Logf("Testing block %s (hash %s, height %d)",
|
|
item.Name, block.Hash(), blockHeight)
|
|
|
|
_, _, err := chain.ProcessBlock(block, blockchain.BFNone)
|
|
if err == nil {
|
|
t.Fatalf("block %q (hash %s, height %d) should not "+
|
|
"have been accepted", item.Name, block.Hash(),
|
|
blockHeight)
|
|
}
|
|
|
|
// Ensure the error code is of the expected type and the reject
|
|
// code matches the value specified in the test instance.
|
|
rerr, ok := err.(blockchain.RuleError)
|
|
if !ok {
|
|
t.Fatalf("block %q (hash %s, height %d) returned "+
|
|
"unexpected error type -- got %T, want "+
|
|
"blockchain.RuleError", item.Name, block.Hash(),
|
|
blockHeight, err)
|
|
}
|
|
if rerr.ErrorCode != item.RejectCode {
|
|
t.Fatalf("block %q (hash %s, height %d) does not have "+
|
|
"expected reject code -- got %v, want %v",
|
|
item.Name, block.Hash(), blockHeight,
|
|
rerr.ErrorCode, item.RejectCode)
|
|
}
|
|
}
|
|
|
|
// testRejectedNonCanonicalBlock attempts to decode the block in the
|
|
// provided test instance and ensures that it failed to decode with a
|
|
// message error.
|
|
testRejectedNonCanonicalBlock := func(item fullblocktests.RejectedNonCanonicalBlock) {
|
|
headerLen := len(item.RawBlock)
|
|
if headerLen > 80 {
|
|
headerLen = 80
|
|
}
|
|
blockHash := chainhash.DoubleHashH(item.RawBlock[0:headerLen])
|
|
blockHeight := item.Height
|
|
t.Logf("Testing block %s (hash %s, height %d)", item.Name,
|
|
blockHash, blockHeight)
|
|
|
|
// Ensure there is an error due to deserializing the block.
|
|
var msgBlock wire.MsgBlock
|
|
err := msgBlock.BtcDecode(bytes.NewReader(item.RawBlock), 0, wire.BaseEncoding)
|
|
if _, ok := err.(*wire.MessageError); !ok {
|
|
t.Fatalf("block %q (hash %s, height %d) should have "+
|
|
"failed to decode", item.Name, blockHash,
|
|
blockHeight)
|
|
}
|
|
}
|
|
|
|
// testOrphanOrRejectedBlock attempts to process the block in the
|
|
// provided test instance and ensures that it was either accepted as an
|
|
// orphan or rejected with a rule violation.
|
|
testOrphanOrRejectedBlock := func(item fullblocktests.OrphanOrRejectedBlock) {
|
|
blockHeight := item.Height
|
|
block := btcutil.NewBlock(item.Block)
|
|
block.SetHeight(blockHeight)
|
|
t.Logf("Testing block %s (hash %s, height %d)",
|
|
item.Name, block.Hash(), blockHeight)
|
|
|
|
_, isOrphan, err := chain.ProcessBlock(block, blockchain.BFNone)
|
|
if err != nil {
|
|
// Ensure the error code is of the expected type.
|
|
if _, ok := err.(blockchain.RuleError); !ok {
|
|
t.Fatalf("block %q (hash %s, height %d) "+
|
|
"returned unexpected error type -- "+
|
|
"got %T, want blockchain.RuleError",
|
|
item.Name, block.Hash(), blockHeight,
|
|
err)
|
|
}
|
|
}
|
|
|
|
if !isOrphan {
|
|
t.Fatalf("block %q (hash %s, height %d) was accepted, "+
|
|
"but is not considered an orphan", item.Name,
|
|
block.Hash(), blockHeight)
|
|
}
|
|
}
|
|
|
|
// testExpectedTip ensures the current tip of the blockchain is the
|
|
// block specified in the provided test instance.
|
|
testExpectedTip := func(item fullblocktests.ExpectedTip) {
|
|
blockHeight := item.Height
|
|
block := btcutil.NewBlock(item.Block)
|
|
block.SetHeight(blockHeight)
|
|
t.Logf("Testing tip for block %s (hash %s, height %d)",
|
|
item.Name, block.Hash(), blockHeight)
|
|
|
|
// Ensure hash and height match.
|
|
best := chain.BestSnapshot()
|
|
if best.Hash != item.Block.BlockHash() ||
|
|
best.Height != blockHeight {
|
|
|
|
t.Fatalf("block %q (hash %s, height %d) should be "+
|
|
"the current tip -- got (hash %s, height %d)",
|
|
item.Name, block.Hash(), blockHeight, best.Hash,
|
|
best.Height)
|
|
}
|
|
}
|
|
|
|
for testNum, test := range tests {
|
|
for itemNum, item := range test {
|
|
switch item := item.(type) {
|
|
case fullblocktests.AcceptedBlock:
|
|
testAcceptedBlock(item)
|
|
case fullblocktests.RejectedBlock:
|
|
testRejectedBlock(item)
|
|
case fullblocktests.RejectedNonCanonicalBlock:
|
|
testRejectedNonCanonicalBlock(item)
|
|
case fullblocktests.OrphanOrRejectedBlock:
|
|
testOrphanOrRejectedBlock(item)
|
|
case fullblocktests.ExpectedTip:
|
|
testExpectedTip(item)
|
|
default:
|
|
t.Fatalf("test #%d, item #%d is not one of "+
|
|
"the supported test instance types -- "+
|
|
"got type: %T", testNum, itemNum, item)
|
|
}
|
|
}
|
|
}
|
|
}
|