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-rw-r--r--dex/app.go6
-rw-r--r--dex/app_test.go2276
2 files changed, 2281 insertions, 1 deletions
diff --git a/dex/app.go b/dex/app.go
index eabdf52f5..90ffd3d3c 100644
--- a/dex/app.go
+++ b/dex/app.go
@@ -516,7 +516,11 @@ func (d *DexconApp) addConfirmedBlock(block *coreTypes.Block) error {
}
// get latest nonce in block
- d.addressNonce[msg.From()] = msg.Nonce()
+ if nonce, exist := d.addressNonce[msg.From()]; !exist || nonce < msg.Nonce() {
+ d.addressNonce[msg.From()] = msg.Nonce()
+ } else {
+ return fmt.Errorf("address %v nonce incorrect cached(%d) >= tx(%d)", msg.From(), nonce, msg.Nonce())
+ }
// calculate max cost in confirmed blocks
if d.addressCost[msg.From()] == nil {
diff --git a/dex/app_test.go b/dex/app_test.go
new file mode 100644
index 000000000..59db1cb22
--- /dev/null
+++ b/dex/app_test.go
@@ -0,0 +1,2276 @@
+package dex
+
+import (
+ "crypto/ecdsa"
+ "fmt"
+ "math/big"
+ "math/rand"
+ "reflect"
+ "sync"
+ "testing"
+ "time"
+
+ coreCommon "github.com/dexon-foundation/dexon-consensus/common"
+ coreCrypto "github.com/dexon-foundation/dexon-consensus/core/crypto"
+ coreEcdsa "github.com/dexon-foundation/dexon-consensus/core/crypto/ecdsa"
+ coreTypes "github.com/dexon-foundation/dexon-consensus/core/types"
+ "github.com/dexon-foundation/dexon/common"
+ "github.com/dexon-foundation/dexon/common/math"
+ "github.com/dexon-foundation/dexon/consensus/dexcon"
+ "github.com/dexon-foundation/dexon/core"
+ "github.com/dexon-foundation/dexon/core/rawdb"
+ "github.com/dexon-foundation/dexon/core/types"
+ "github.com/dexon-foundation/dexon/core/vm"
+ "github.com/dexon-foundation/dexon/crypto"
+ "github.com/dexon-foundation/dexon/ethdb"
+ "github.com/dexon-foundation/dexon/event"
+ "github.com/dexon-foundation/dexon/log"
+ "github.com/dexon-foundation/dexon/rlp"
+)
+
+type singnal int
+
+const (
+ runFail singnal = iota
+ runSuccess
+)
+
+type App interface {
+ PreparePayload(position coreTypes.Position) (payload []byte, err error)
+ PrepareWitness(height uint64) (witness coreTypes.Witness, err error)
+ VerifyBlock(block *coreTypes.Block) coreTypes.BlockVerifyStatus
+ BlockConfirmed(block coreTypes.Block)
+ BlockDelivered(blockHash coreCommon.Hash, position coreTypes.Position, result coreTypes.FinalizationResult)
+ SubscribeNewFinalizedBlockEvent(ch chan<- core.NewFinalizedBlockEvent) event.Subscription
+ Stop()
+}
+
+type Product interface{}
+
+type Tester interface {
+ // Name the name of tester
+ Name() string
+
+ // ViewAndRecord view the data and record then start when requirement is ready.
+ ViewAndRecord(product Product)
+
+ // ReadyToTest check tester is ready or not.
+ ReadyToTest() bool
+
+ // InputsForTest return the inputs which we want to test, it will be called only when it is get ready.
+ InputsForTest(product Product) []reflect.Value
+
+ // ValidateResults validate the results what we expected.
+ ValidateResults(results []reflect.Value) error
+
+ // Done return true when tester finish it job.
+ Done() bool
+
+ // StopTime lock all working jobs for test and rollback data if necessary.
+ StopTime() bool
+
+ // Rollback rollback data in the final.
+ Rollback() error
+}
+
+type baseTester struct {
+ App
+
+ ready bool
+
+ testTimer *time.Timer
+ testInterval time.Duration
+
+ counter int
+ threshold int
+
+ self interface{}
+}
+
+func (t baseTester) Name() string {
+ return reflect.TypeOf(t.self).Name()
+}
+
+func (t baseTester) ReadyToTest() bool {
+ return t.ready
+}
+
+func (t baseTester) Done() bool {
+ return t.counter >= t.threshold
+}
+
+func (t baseTester) StopTime() bool {
+ return false
+}
+
+func (t *baseTester) Rollback() error {
+ return nil
+}
+
+func (t *baseTester) ViewAndRecord(product Product) {
+ panic("need to implement")
+}
+
+func (t baseTester) InputsForTest(product Product) []reflect.Value {
+ panic("need to implement")
+}
+
+func (t *baseTester) ValidateResults(results []reflect.Value) error {
+ panic("need to implement")
+}
+
+type takerName string
+
+type makerName string
+
+type ProductCenter struct {
+ takerChan map[takerName]chan Product
+
+ takerList map[makerName]map[takerName]struct{}
+}
+
+// RequestProduct make a blocking request the product from maker.
+func (center *ProductCenter) RequestProduct(tName takerName) Product {
+ p := <-center.takerChan[tName]
+ return p
+}
+
+// DeliverProduct deliver product for takers.
+func (center *ProductCenter) DeliverProduct(mName makerName, product Product) {
+ for tName := range center.takerList[mName] {
+ center.takerChan[tName] <- product
+ }
+}
+
+// Register build the connection between taker and maker.
+func (center *ProductCenter) Register(tName takerName, mName ...makerName) {
+ center.takerChan[tName] = make(chan Product, 1000)
+
+ for _, n := range mName {
+ if _, exist := center.takerList[n]; !exist {
+ center.takerList[n] = make(map[takerName]struct{})
+ center.takerList[n][tName] = struct{}{}
+ } else {
+ center.takerList[n][tName] = struct{}{}
+ }
+ }
+}
+
+func (center ProductCenter) New() *ProductCenter {
+ center.takerChan = map[takerName]chan Product{}
+ center.takerList = map[makerName]map[takerName]struct{}{}
+ return &center
+}
+
+type FactoryBase struct {
+ App
+
+ targetFunc interface{}
+
+ name string
+
+ center *ProductCenter
+
+ testers []Tester
+
+ status chan map[singnal]interface{}
+
+ stopTimeMu *sync.RWMutex
+}
+
+func (base *FactoryBase) testerDoWork(product Product) error {
+ for _, t := range base.testers {
+ if t.Done() {
+ continue
+ }
+
+ if err := func() (tErr error) {
+ var returns []reflect.Value
+ defer func() {
+ r := recover()
+ if r != nil {
+ returns = append(returns, reflect.ValueOf(fmt.Errorf("%v", r)))
+ }
+
+ if t.ReadyToTest() {
+ err := t.ValidateResults(returns)
+ if err != nil {
+ tErr = err
+ return
+ }
+
+ err = t.Rollback()
+ if err != nil {
+ tErr = fmt.Errorf("recover fail: %v", tErr)
+ return
+ }
+ } else if r != nil {
+ tErr = fmt.Errorf("%v", r)
+ }
+
+ if t.StopTime() {
+ base.stopTimeMu.Unlock()
+ } else {
+ base.stopTimeMu.RUnlock()
+ }
+ }()
+
+ if t.StopTime() {
+ base.stopTimeMu.Lock()
+ } else {
+ base.stopTimeMu.RLock()
+ }
+ t.ViewAndRecord(product)
+ if t.ReadyToTest() {
+ inputs := t.InputsForTest(product)
+ returns = reflect.ValueOf(base.targetFunc).Call(inputs)
+ }
+ return
+ }(); err != nil {
+ return fmt.Errorf("%s: %v", t.Name(), err)
+ }
+ }
+
+ return nil
+}
+
+func (base *FactoryBase) testerAllDone() bool {
+ for _, t := range base.testers {
+ if !t.Done() {
+ return false
+ }
+ }
+
+ return true
+}
+
+func (base *FactoryBase) notifySuccess() {
+ base.status <- map[singnal]interface{}{runSuccess: nil}
+}
+
+func (base *FactoryBase) notifyFail(msg interface{}) {
+ base.status <- map[singnal]interface{}{runFail: msg}
+}
+
+type ConfigFactory struct {
+ FactoryBase
+
+ initialized bool
+
+ sleepTime time.Duration
+
+ masterKey *ecdsa.PrivateKey
+}
+
+func (f *ConfigFactory) Run() {
+ for {
+ if !f.initialized {
+ // Initial block for first round.
+ go f.center.DeliverProduct(makerName(f.name),
+ &PositionProduct{position: coreTypes.Position{
+ Round: 0,
+ Height: 0,
+ }})
+
+ f.initialized = true
+ continue
+ }
+
+ time.Sleep(f.sleepTime)
+
+ product := f.center.RequestProduct(takerName(f.name))
+ position := f.covertProduct(product)
+ position.Height++
+
+ if f.roundStartAt(position.Round+1) == position.Height {
+ position.Round = position.Round + 1
+ }
+
+ go f.center.DeliverProduct(makerName(f.name), &PositionProduct{
+ position: position,
+ })
+ }
+}
+
+func (f ConfigFactory) covertProduct(product interface{}) coreTypes.Position {
+ var position coreTypes.Position
+ switch product.(type) {
+ case *BlockConfirmedProduct:
+ position = product.(*BlockConfirmedProduct).block.Position
+ default:
+ panic(fmt.Errorf("unexpected type %T", product))
+ }
+
+ return position
+}
+
+func (f *ConfigFactory) roundStartAt(round uint64) uint64 {
+ dexonApp := f.App.(*DexconApp)
+ start := uint64(0)
+ for i := uint64(0); i < round; i++ {
+ start += dexonApp.gov.Configuration(i).RoundLength
+ }
+
+ return start - 1
+}
+
+func (f ConfigFactory) New(app App, center *ProductCenter, stopTimeMu *sync.RWMutex, masterKey *ecdsa.PrivateKey) *ConfigFactory {
+ f.FactoryBase = FactoryBase{
+ App: app,
+ name: reflect.TypeOf(f).Name(),
+ center: center,
+ stopTimeMu: stopTimeMu,
+ }
+ f.sleepTime = 250 * time.Millisecond
+ f.masterKey = masterKey
+ f.center.Register(takerName(f.name), makerName(reflect.TypeOf(BlockConfirmedFactory{}).Name()))
+ return &f
+}
+
+type PositionProduct struct {
+ position coreTypes.Position
+}
+
+type PreparePayloadFactory struct {
+ FactoryBase
+}
+
+func (f *PreparePayloadFactory) Run() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ for {
+ product := f.center.RequestProduct(takerName(f.name))
+
+ if len(f.testers) > 0 && f.testerAllDone() {
+ f.notifySuccess()
+ f.testers = nil
+ } else if err := f.testerDoWork(product); err != nil {
+ panic(fmt.Errorf("test fail: %v", err))
+ }
+
+ go func() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ position := f.covertProduct(product)
+ f.stopTimeMu.RLock()
+ payload, err := f.App.PreparePayload(position)
+ if err != nil {
+ panic(err)
+ }
+ f.stopTimeMu.RUnlock()
+
+ go f.center.DeliverProduct(makerName(f.name), &PreparePayloadProduct{
+ position: position,
+ payload: payload,
+ })
+ }()
+ }
+}
+
+func (f PreparePayloadFactory) covertProduct(product interface{}) coreTypes.Position {
+ var position coreTypes.Position
+ switch product.(type) {
+ case *PositionProduct:
+ position = product.(*PositionProduct).position
+ default:
+ panic(fmt.Errorf("unexpected type %T", product))
+ }
+
+ return position
+}
+
+func (f PreparePayloadFactory) New(app App, center *ProductCenter, stopTimeMu *sync.RWMutex) *PreparePayloadFactory {
+ f.FactoryBase = FactoryBase{
+ App: app,
+ name: reflect.TypeOf(f).Name(),
+ center: center,
+ targetFunc: app.PreparePayload,
+ status: make(chan map[singnal]interface{}, 1),
+ stopTimeMu: stopTimeMu,
+ }
+ f.center.Register(takerName(f.name), makerName(reflect.TypeOf(ConfigFactory{}).Name()))
+ return &f
+}
+
+func (f PreparePayloadFactory) NewWithTester(app App, center *ProductCenter, stopTimeMu *sync.RWMutex) *PreparePayloadFactory {
+ factory := f.New(app, center, stopTimeMu)
+ factory.testers = []Tester{
+ ppBlockLimitTester{}.New(app, 10, 3, 3),
+ ppBlockHeightTester{}.New(app, 20, 3, 3),
+ }
+ return factory
+}
+
+type PreparePayloadProduct struct {
+ position coreTypes.Position
+ payload []byte
+}
+
+type ppBlockLimitTester struct {
+ baseTester
+
+ round uint64
+}
+
+func (t ppBlockLimitTester) New(app App, startAt, interval, threshold int) *ppBlockLimitTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *ppBlockLimitTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PositionProduct:
+ t.round = product.(*PositionProduct).position.Round
+ t.ready = true
+ }
+
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t ppBlockLimitTester) InputsForTest(product Product) []reflect.Value {
+ return []reflect.Value{reflect.ValueOf(product.(*PositionProduct).position)}
+}
+
+func (t *ppBlockLimitTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 2 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[1].Interface().(type) {
+ case nil:
+ case error:
+ return fmt.Errorf("result[1] must nil: %v", results[1].Interface())
+ default:
+ return fmt.Errorf("unexpect results[1] return type %T", results[1].Interface())
+ }
+
+ switch results[0].Interface().(type) {
+ case []byte:
+ if results[0].Bytes() != nil {
+ var txs []*types.Transaction
+ err := rlp.DecodeBytes(results[0].Bytes(), &txs)
+ if err != nil {
+ return fmt.Errorf("rlp decode error: %v", err)
+ }
+
+ app := t.App.(*DexconApp)
+ blockLimit := app.gov.DexconConfiguration(t.round).BlockGasLimit
+ totalGas := uint64(0)
+ for _, tx := range txs {
+ totalGas += tx.Gas()
+ }
+
+ if blockLimit < totalGas {
+ return fmt.Errorf("total cost larger than block limit %d < %d", blockLimit, totalGas)
+ }
+
+ t.counter++
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.ready = false
+ return nil
+}
+
+type ppBlockHeightTester struct {
+ baseTester
+
+ height uint64
+}
+
+func (t ppBlockHeightTester) New(app App, startAt, interval, threshold int) *ppBlockHeightTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *ppBlockHeightTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PositionProduct:
+ t.height = product.(*PositionProduct).position.Height
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t ppBlockHeightTester) InputsForTest(product Product) []reflect.Value {
+ position := product.(*PositionProduct).position
+ position.Height--
+ return []reflect.Value{reflect.ValueOf(position)}
+}
+
+func (t *ppBlockHeightTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 2 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[1].Interface().(type) {
+ case error:
+ expectErr := fmt.Sprintf("expected height %d but get %d", t.height, t.height-1)
+ if results[1].Interface().(error).Error() != expectErr {
+ return fmt.Errorf("unexpected error msg: %v", results[1].Interface())
+ }
+ default:
+ return fmt.Errorf("unexpect results[1] return type %T", results[1].Interface())
+ }
+
+ switch results[0].Interface().(type) {
+ case []byte:
+ if results[0].Bytes() != nil {
+ return fmt.Errorf("payload should be nil")
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.ready = false
+ t.counter++
+ return nil
+}
+
+type PrepareWitnessFactory struct {
+ FactoryBase
+}
+
+func (f *PrepareWitnessFactory) Run() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ for {
+ product := f.center.RequestProduct(takerName(f.name))
+
+ if len(f.testers) > 0 && f.testerAllDone() {
+ f.notifySuccess()
+ f.testers = nil
+ } else if err := f.testerDoWork(product); err != nil {
+ panic(fmt.Errorf("test fail: %v", err))
+ }
+
+ go func() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ f.stopTimeMu.RLock()
+ witness, err := f.App.PrepareWitness(f.App.(*DexconApp).blockchain.CurrentBlock().NumberU64())
+ if err != nil {
+ panic(err)
+ }
+ f.stopTimeMu.RUnlock()
+
+ position, payload := f.convertProduct(product)
+ go f.center.DeliverProduct(makerName(f.name), &PrepareWitnessProduct{
+ block: coreTypes.Block{
+ Hash: coreCommon.NewRandomHash(),
+ ProposerID: coreTypes.NodeID{coreCommon.Hash{1, 2, 3}},
+ Position: position,
+ Witness: witness,
+ Payload: payload,
+ PayloadHash: coreCrypto.Keccak256Hash(payload),
+ },
+ })
+ }()
+ }
+}
+
+func (f PrepareWitnessFactory) convertProduct(product Product) (coreTypes.Position, []byte) {
+ var (
+ position coreTypes.Position
+ payload []byte
+ )
+ switch product.(type) {
+ case *PreparePayloadProduct:
+ realProduct := product.(*PreparePayloadProduct)
+ position = realProduct.position
+ payload = realProduct.payload
+ default:
+ panic(fmt.Errorf("unexpected type %T", product))
+ }
+
+ return position, payload
+}
+
+func (f PrepareWitnessFactory) New(app App, center *ProductCenter, stopTimeMu *sync.RWMutex) *PrepareWitnessFactory {
+ f.FactoryBase = FactoryBase{
+ App: app,
+ name: reflect.TypeOf(f).Name(),
+ center: center,
+ targetFunc: app.PrepareWitness,
+ status: make(chan map[singnal]interface{}, 1),
+ stopTimeMu: stopTimeMu,
+ }
+ f.center.Register(takerName(f.name), makerName(reflect.TypeOf(PreparePayloadFactory{}).Name()))
+ return &f
+}
+
+func (f PrepareWitnessFactory) NewWithTester(app App, center *ProductCenter, stopTimeMu *sync.RWMutex) *PrepareWitnessFactory {
+ factory := f.New(app, center, stopTimeMu)
+ factory.testers = []Tester{
+ pwConsensusHeightTester{}.New(app, 10, 10, 3),
+ }
+
+ return factory
+}
+
+type PrepareWitnessProduct struct {
+ block coreTypes.Block
+}
+
+type pwConsensusHeightTester struct {
+ baseTester
+}
+
+func (t pwConsensusHeightTester) New(app App, startAt, interval, threshold int) *pwConsensusHeightTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *pwConsensusHeightTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ t.ready = true
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t pwConsensusHeightTester) InputsForTest(product Product) []reflect.Value {
+ return []reflect.Value{reflect.ValueOf(uint64(99999))}
+}
+
+func (t *pwConsensusHeightTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 2 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[1].Interface().(type) {
+ case nil:
+ return fmt.Errorf("results[1] must not nil")
+ case error:
+ if results[1].Interface().(error).Error() != "current height < consensus height" {
+ return fmt.Errorf("unexpected error: %v", results[1].Interface())
+ }
+ default:
+ return fmt.Errorf("unexpect results[1] return type %T", results[1].Interface())
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.Witness:
+ witness := results[0].Interface().(coreTypes.Witness)
+ if witness.Height != 0 || len(witness.Data) > 0 {
+ return fmt.Errorf("unexpected results[1] return %+v", results[0].Interface())
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type VerifyBlockFactory struct {
+ FactoryBase
+}
+
+func (f *VerifyBlockFactory) Run() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ for {
+ product := f.center.RequestProduct(takerName(f.name))
+
+ if len(f.testers) > 0 && f.testerAllDone() {
+ f.notifySuccess()
+ f.testers = nil
+ } else if err := f.testerDoWork(product); err != nil {
+ panic(fmt.Errorf("test fail: %v", err))
+ }
+
+ go func() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ block := f.convertProduct(product)
+
+ f.stopTimeMu.RLock()
+ if status := f.App.VerifyBlock(&block); status != coreTypes.VerifyOK {
+ panic(fmt.Errorf("verify block fail: status %v", status))
+ }
+ f.stopTimeMu.RUnlock()
+
+ go f.center.DeliverProduct(makerName(f.name), &VerifyBlockProduct{
+ block: block,
+ })
+ }()
+ }
+}
+
+func (f VerifyBlockFactory) convertProduct(product Product) coreTypes.Block {
+ var block coreTypes.Block
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ block = product.(*PrepareWitnessProduct).block
+ default:
+ panic(fmt.Errorf("unexpected type %T", product))
+ }
+
+ return block
+}
+
+func (f VerifyBlockFactory) New(app App, center *ProductCenter, stopTimeMu *sync.RWMutex) *VerifyBlockFactory {
+ f.FactoryBase = FactoryBase{
+ App: app,
+ name: reflect.TypeOf(f).Name(),
+ center: center,
+ targetFunc: app.VerifyBlock,
+ status: make(chan map[singnal]interface{}, 1),
+ stopTimeMu: stopTimeMu,
+ }
+ f.center.Register(takerName(f.name), makerName(reflect.TypeOf(PrepareWitnessFactory{}).Name()))
+ return &f
+}
+
+func (f VerifyBlockFactory) NewWithTester(app App, center *ProductCenter, stopTimeMu *sync.RWMutex) *VerifyBlockFactory {
+ factory := f.New(app, center, stopTimeMu)
+ factory.testers = []Tester{
+ vbWitnessDataDecodeTester{}.New(app, 10, 5, 3),
+ vbWitnessHeightTester{}.New(app, 20, 5, 3),
+ vbWitnessDataTester{}.New(app, 30, 5, 3),
+ vbBlockHeightTester{}.New(app, 40, 3, 3),
+ vbPayloadDecodeTester{}.New(app, 50, 5, 3),
+ vbTxNonceSequenceTester{}.New(app, 60, 5, 3),
+ vbTxNonceIncrementTester{}.New(app, 70, 5, 3),
+ vbTxIntrinsicGasTester{}.New(app, 80, 5, 3),
+ vbTxGasTooLowTester{}.New(app, 90, 5, 3),
+ vbInsufficientFundsTester{}.New(app, 100, 5, 3),
+ vbBlockLimitTester{}.New(app, 110, 5, 3),
+ }
+
+ return factory
+}
+
+type VerifyBlockProduct struct {
+ block coreTypes.Block
+}
+
+type vbWitnessDataDecodeTester struct {
+ baseTester
+}
+
+func (t vbWitnessDataDecodeTester) New(app App, startAt, interval, threshold int) *vbWitnessDataDecodeTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbWitnessDataDecodeTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbWitnessDataDecodeTester) InputsForTest(product Product) []reflect.Value {
+ block := product.(*PrepareWitnessProduct).block
+ block.Witness.Data = make([]byte, 100)
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbWitnessDataDecodeTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ if results[0].Interface().(coreTypes.BlockVerifyStatus) != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpected status %v", results[0].Interface())
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbWitnessHeightTester struct {
+ baseTester
+}
+
+func (t vbWitnessHeightTester) New(app App, startAt, interval, threshold int) *vbWitnessHeightTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbWitnessHeightTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbWitnessHeightTester) InputsForTest(product Product) []reflect.Value {
+ block := product.(*PrepareWitnessProduct).block
+ block.Witness.Height += uint64(rand.New(rand.NewSource(time.Now().UnixNano())).Intn(10) + 1)
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbWitnessHeightTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ if results[0].Interface().(coreTypes.BlockVerifyStatus) != coreTypes.VerifyRetryLater {
+ return fmt.Errorf("unexpected status %v", results[0].Interface())
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbWitnessDataTester struct {
+ baseTester
+}
+
+func (t vbWitnessDataTester) New(app App, startAt, interval, threshold int) *vbWitnessDataTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbWitnessDataTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbWitnessDataTester) InputsForTest(product Product) []reflect.Value {
+ block := product.(*PrepareWitnessProduct).block
+ randNum := big.NewInt(rand.New(rand.NewSource(time.Now().UnixNano())).Int63())
+ var err error
+ block.Witness.Data, err = rlp.EncodeToBytes(common.BigToHash(randNum))
+ if err != nil {
+ panic(err)
+ }
+
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbWitnessDataTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ if results[0].Interface().(coreTypes.BlockVerifyStatus) != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpected status %v", results[0].Interface())
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbBlockHeightTester struct {
+ baseTester
+}
+
+func (t vbBlockHeightTester) New(app App, startAt, interval, threshold int) *vbBlockHeightTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbBlockHeightTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbBlockHeightTester) InputsForTest(product Product) []reflect.Value {
+ block := product.(*PrepareWitnessProduct).block
+ block.Position.Height--
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbBlockHeightTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ if results[0].Interface().(coreTypes.BlockVerifyStatus) != coreTypes.VerifyRetryLater {
+ return fmt.Errorf("unexpected status %v", results[0].Interface())
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbPayloadDecodeTester struct {
+ baseTester
+}
+
+func (t vbPayloadDecodeTester) New(app App, startAt, interval, threshold int) *vbPayloadDecodeTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbPayloadDecodeTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbPayloadDecodeTester) InputsForTest(product Product) []reflect.Value {
+ block := product.(*PrepareWitnessProduct).block
+ block.Payload = []byte{0x00}
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbPayloadDecodeTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ status := results[0].Interface().(coreTypes.BlockVerifyStatus)
+ if status != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpect status %v", status)
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbTxNonceSequenceTester struct {
+ baseTester
+}
+
+func (t vbTxNonceSequenceTester) New(app App, startAt, interval, threshold int) *vbTxNonceSequenceTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbTxNonceSequenceTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbTxNonceSequenceTester) InputsForTest(product Product) []reflect.Value {
+ app := t.App.(*DexconApp)
+ block := product.(*PrepareWitnessProduct).block
+ var key *ecdsa.PrivateKey
+ var err error
+ key, err = crypto.GenerateKey()
+ if err != nil {
+ panic(err)
+ }
+
+ blockchain := app.blockchain
+ signer := types.NewEIP155Signer(blockchain.Config().ChainID)
+ var txs []*types.Transaction
+ for i := uint64(0); i < 3; i++ {
+ if i == 1 {
+ continue
+ }
+
+ tx, err := types.SignTx(types.NewTransaction(i, common.Address{}, nil, 21000, nil, nil), signer, key)
+ if err != nil {
+ panic(err)
+ }
+ txs = append(txs, tx)
+ }
+
+ block.Payload, err = rlp.EncodeToBytes(txs)
+ if err != nil {
+ panic(err)
+ }
+
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbTxNonceSequenceTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ status := results[0].Interface().(coreTypes.BlockVerifyStatus)
+ if status != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpect status %v", status)
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbTxNonceIncrementTester struct {
+ baseTester
+}
+
+func (t vbTxNonceIncrementTester) New(app App, startAt, interval, threshold int) *vbTxNonceIncrementTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbTxNonceIncrementTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbTxNonceIncrementTester) InputsForTest(product Product) []reflect.Value {
+ app := t.App.(*DexconApp)
+ block := product.(*PrepareWitnessProduct).block
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ panic(err)
+ }
+
+ blockchain := app.blockchain
+ signer := types.NewEIP155Signer(blockchain.Config().ChainID)
+ var txs []*types.Transaction
+ for i := uint64(1); i < 4; i++ {
+ tx, err := types.SignTx(types.NewTransaction(i, common.Address{}, nil, 21000, nil, nil), signer, key)
+ if err != nil {
+ panic(err)
+ }
+ txs = append(txs, tx)
+ }
+
+ block.Payload, err = rlp.EncodeToBytes(txs)
+ if err != nil {
+ panic(err)
+ }
+
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbTxNonceIncrementTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ status := results[0].Interface().(coreTypes.BlockVerifyStatus)
+ if status != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpect status %v", status)
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbTxIntrinsicGasTester struct {
+ baseTester
+}
+
+func (t vbTxIntrinsicGasTester) New(app App, startAt, interval, threshold int) *vbTxIntrinsicGasTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbTxIntrinsicGasTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbTxIntrinsicGasTester) InputsForTest(product Product) []reflect.Value {
+ app := t.App.(*DexconApp)
+ block := product.(*PrepareWitnessProduct).block
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ panic(err)
+ }
+
+ blockchain := app.blockchain
+ signer := types.NewEIP155Signer(blockchain.Config().ChainID)
+ var txs []*types.Transaction
+ for i := uint64(0); i < 3; i++ {
+ tx, err := types.SignTx(types.NewTransaction(i, common.Address{}, nil, 10000, nil, nil), signer, key)
+ if err != nil {
+ panic(err)
+ }
+ txs = append(txs, tx)
+ }
+
+ block.Payload, err = rlp.EncodeToBytes(txs)
+ if err != nil {
+ panic(err)
+ }
+
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbTxIntrinsicGasTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ status := results[0].Interface().(coreTypes.BlockVerifyStatus)
+ if status != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpect status %v", status)
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbTxGasTooLowTester struct {
+ baseTester
+}
+
+func (t vbTxGasTooLowTester) New(app App, startAt, interval, threshold int) *vbTxGasTooLowTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbTxGasTooLowTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbTxGasTooLowTester) InputsForTest(product Product) []reflect.Value {
+ app := t.App.(*DexconApp)
+ block := product.(*PrepareWitnessProduct).block
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ panic(err)
+ }
+
+ blockchain := app.blockchain
+ signer := types.NewEIP155Signer(blockchain.Config().ChainID)
+ var txs []*types.Transaction
+ for i := uint64(0); i < 3; i++ {
+ tx, err := types.SignTx(types.NewTransaction(i, common.Address{}, nil, 21000, nil, []byte{0x00}), signer, key)
+ if err != nil {
+ panic(err)
+ }
+ txs = append(txs, tx)
+ }
+
+ block.Payload, err = rlp.EncodeToBytes(txs)
+ if err != nil {
+ panic(err)
+ }
+
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbTxGasTooLowTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ status := results[0].Interface().(coreTypes.BlockVerifyStatus)
+ if status != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpect status %v", status)
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbInsufficientFundsTester struct {
+ baseTester
+}
+
+func (t vbInsufficientFundsTester) New(app App, startAt, interval, threshold int) *vbInsufficientFundsTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbInsufficientFundsTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbInsufficientFundsTester) InputsForTest(product Product) []reflect.Value {
+ app := t.App.(*DexconApp)
+ block := product.(*PrepareWitnessProduct).block
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ panic(err)
+ }
+
+ blockchain := app.blockchain
+ signer := types.NewEIP155Signer(blockchain.Config().ChainID)
+ var txs []*types.Transaction
+ for i := uint64(0); i < 3; i++ {
+ tx, err := types.SignTx(types.NewTransaction(i, common.Address{}, big.NewInt(1), 21000, nil, nil), signer, key)
+ if err != nil {
+ panic(err)
+ }
+ txs = append(txs, tx)
+ }
+
+ block.Payload, err = rlp.EncodeToBytes(txs)
+ if err != nil {
+ panic(err)
+ }
+
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbInsufficientFundsTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ status := results[0].Interface().(coreTypes.BlockVerifyStatus)
+ if status != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpect status %v", status)
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type vbBlockLimitTester struct {
+ baseTester
+}
+
+func (t vbBlockLimitTester) New(app App, startAt, interval, threshold int) *vbBlockLimitTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *vbBlockLimitTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *PrepareWitnessProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t vbBlockLimitTester) InputsForTest(product Product) []reflect.Value {
+ app := t.App.(*DexconApp)
+ block := product.(*PrepareWitnessProduct).block
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ panic(err)
+ }
+
+ blockchain := app.blockchain
+ signer := types.NewEIP155Signer(blockchain.Config().ChainID)
+ var txs []*types.Transaction
+ for i := uint64(0); i < 3; i++ {
+ tx, err := types.SignTx(types.NewTransaction(i, common.Address{}, nil, 10e10, nil, nil), signer, key)
+ if err != nil {
+ panic(err)
+ }
+ txs = append(txs, tx)
+ }
+
+ block.Payload, err = rlp.EncodeToBytes(txs)
+ if err != nil {
+ panic(err)
+ }
+
+ return []reflect.Value{reflect.ValueOf(&block)}
+}
+
+func (t *vbBlockLimitTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case coreTypes.BlockVerifyStatus:
+ status := results[0].Interface().(coreTypes.BlockVerifyStatus)
+ if status != coreTypes.VerifyInvalidBlock {
+ return fmt.Errorf("unexpect status %v", status)
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type BlockConfirmedFactory struct {
+ FactoryBase
+
+ masterKey *coreEcdsa.PrivateKey
+}
+
+func (f *BlockConfirmedFactory) Run() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ for {
+ product := f.center.RequestProduct(takerName(f.name))
+
+ if len(f.testers) > 0 && f.testerAllDone() {
+ f.notifySuccess()
+ f.testers = nil
+ } else if err := f.testerDoWork(product); err != nil {
+ panic(fmt.Errorf("test fail: %v", err))
+ }
+
+ go func() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ block := f.convertProduct(product)
+ block.ProposerID = coreTypes.NewNodeID(f.masterKey.PublicKey())
+ f.stopTimeMu.RLock()
+ f.App.BlockConfirmed(block)
+ f.stopTimeMu.RUnlock()
+
+ block.Finalization = coreTypes.FinalizationResult{
+ Timestamp: time.Now(),
+ Height: block.Position.Height + 1,
+ }
+
+ f.center.DeliverProduct(makerName(f.name), &BlockConfirmedProduct{
+ block: block,
+ })
+ }()
+ }
+}
+
+func (f BlockConfirmedFactory) convertProduct(product Product) coreTypes.Block {
+ var block coreTypes.Block
+ switch product.(type) {
+ case *VerifyBlockProduct:
+ block = product.(*VerifyBlockProduct).block
+ default:
+ panic(fmt.Errorf("unexpected type %T", product))
+ }
+
+ return block
+}
+
+func (f BlockConfirmedFactory) New(app App, center *ProductCenter, stopTimeMu *sync.RWMutex,
+ masterKey *ecdsa.PrivateKey) *BlockConfirmedFactory {
+ f.FactoryBase = FactoryBase{
+ App: app,
+ name: reflect.TypeOf(f).Name(),
+ center: center,
+ targetFunc: app.BlockConfirmed,
+ status: make(chan map[singnal]interface{}, 1),
+ stopTimeMu: stopTimeMu,
+ }
+ f.masterKey = coreEcdsa.NewPrivateKeyFromECDSA(masterKey)
+ f.center.Register(takerName(f.name), makerName(reflect.TypeOf(VerifyBlockFactory{}).Name()))
+ return &f
+}
+
+func (f BlockConfirmedFactory) NewWithTester(app App, center *ProductCenter, stopTimeMu *sync.RWMutex,
+ masterKey *ecdsa.PrivateKey) *BlockConfirmedFactory {
+ factory := f.New(app, center, stopTimeMu, masterKey)
+ factory.testers = []Tester{
+ bcBlockConfirmedTester{}.New(app, 30, 5, 3),
+ }
+
+ return factory
+}
+
+type BlockConfirmedProduct struct {
+ block coreTypes.Block
+}
+
+type addInfo struct {
+ nonce *uint64
+ cost *big.Int
+ counter *uint64
+}
+
+type bcBlockConfirmedTester struct {
+ baseTester
+
+ block coreTypes.Block
+ originAddrInfo map[common.Address]addInfo
+}
+
+func (t bcBlockConfirmedTester) New(app App, startAt, interval, threshold int) *bcBlockConfirmedTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ t.originAddrInfo = map[common.Address]addInfo{}
+ return &t
+}
+
+func (t *bcBlockConfirmedTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *VerifyBlockProduct:
+ t.block = product.(*VerifyBlockProduct).block
+ var txs []*types.Transaction
+ err := rlp.DecodeBytes(t.block.Payload, &txs)
+ if err != nil {
+ panic(err)
+ } else if len(txs) > 0 {
+ app := t.App.(*DexconApp)
+ blockchain := app.blockchain
+ for _, tx := range txs {
+ msg, err := tx.AsMessage(types.MakeSigner(blockchain.Config(), new(big.Int)))
+ if err != nil {
+ panic(err)
+ }
+
+ if _, exist := t.originAddrInfo[msg.From()]; !exist {
+ info := addInfo{}
+
+ nonce, exist := app.addressNonce[msg.From()]
+ if !exist {
+ info.nonce = nil
+ } else {
+ info.nonce = &nonce
+ }
+
+ cost, exist := app.addressCost[msg.From()]
+ if !exist {
+ info.cost = nil
+ } else {
+ info.cost = cost
+ }
+
+ counter, exist := app.addressCounter[msg.From()]
+ if !exist {
+ info.counter = nil
+ } else {
+ info.counter = &counter
+ }
+
+ t.originAddrInfo[msg.From()] = info
+ }
+ }
+ t.ready = true
+ }
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t bcBlockConfirmedTester) InputsForTest(product Product) []reflect.Value {
+ return []reflect.Value{reflect.ValueOf(product.(*VerifyBlockProduct).block)}
+}
+
+func (t *bcBlockConfirmedTester) ValidateResults(results []reflect.Value) error {
+ if len(results) > 0 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ var expectTxs []*types.Transaction
+ err := rlp.DecodeBytes(t.block.Payload, &expectTxs)
+ if err != nil {
+ return fmt.Errorf("rlp decode error: %v", err)
+ }
+
+ app := t.App.(*DexconApp)
+ blockchain := app.blockchain
+ block, cachedTxs := app.getConfirmedBlockByHash(t.block.Hash)
+ if block == nil {
+ return fmt.Errorf("block can not be nil")
+ }
+
+ if t.block.Hash != block.Hash {
+ return fmt.Errorf("block hash not equal %v vs %v", t.block.Hash, block.Hash)
+ }
+
+ addrInfo := map[common.Address]*addInfo{}
+ for i, tx := range expectTxs {
+ if tx.Hash() != cachedTxs[i].Hash() {
+ return fmt.Errorf("incorrect tx %+v vs %+v", tx, cachedTxs[i])
+ }
+
+ msg, err := tx.AsMessage(types.MakeSigner(blockchain.Config(), new(big.Int)))
+ if err != nil {
+ panic(err)
+ }
+
+ nonce := tx.Nonce()
+ if info, exist := addrInfo[msg.From()]; !exist {
+ counter := uint64(1)
+ addrInfo[msg.From()] = &addInfo{nonce: &nonce, cost: tx.Cost(), counter: &counter}
+ } else {
+ info.nonce = &nonce
+ info.cost = new(big.Int).Add(info.cost, tx.Cost())
+ }
+ }
+
+ for addr, info := range addrInfo {
+
+ var expectCost *big.Int
+ var expectNonce uint64
+ var expectCounter uint64
+ if t.originAddrInfo[addr].cost == nil {
+ expectCost = info.cost
+ } else {
+ expectCost = new(big.Int).Add(t.originAddrInfo[addr].cost, info.cost)
+ }
+
+ expectNonce = *info.nonce
+
+ if t.originAddrInfo[addr].counter == nil {
+ expectCounter = *info.counter
+ } else {
+ expectCounter = *t.originAddrInfo[addr].counter + *info.counter
+ }
+
+ cost, exist := app.addressCost[addr]
+ counter, exist := app.addressCounter[addr]
+ nonce, exist := app.addressNonce[addr]
+ if !exist {
+ return fmt.Errorf("cache in confirmed block is empty %v %v %v", cost, counter, nonce)
+ }
+
+ if cost.Cmp(expectCost) != 0 {
+ return fmt.Errorf("incorrect cost expect %v but %v", expectCost, cost)
+ }
+
+ if counter != expectCounter {
+ return fmt.Errorf("incorrect counter expect %v but %v", expectCounter, counter)
+ }
+
+ if nonce != expectNonce {
+ return fmt.Errorf("incorrect nonce expect %v but %v", expectNonce, nonce)
+ }
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+func (t bcBlockConfirmedTester) StopTime() bool {
+ return true
+}
+
+func (t *bcBlockConfirmedTester) Rollback() error {
+ app := t.App.(*DexconApp)
+ delete(app.confirmedBlocks, t.block.Hash)
+ app.undeliveredNum--
+ for addr, info := range t.originAddrInfo {
+ if info.nonce == nil {
+ delete(app.addressNonce, addr)
+ } else {
+ app.addressNonce[addr] = *info.nonce
+ }
+
+ if info.cost == nil {
+ delete(app.addressCost, addr)
+ } else {
+ app.addressCost[addr] = info.cost
+ }
+
+ if info.cost == nil {
+ delete(app.addressCounter, addr)
+ } else {
+ app.addressCounter[addr] = *info.counter
+ }
+ }
+
+ t.originAddrInfo = map[common.Address]addInfo{}
+ return nil
+}
+
+type BlockDeliveredFactory struct {
+ FactoryBase
+}
+
+func (f *BlockDeliveredFactory) Run() {
+ defer func() {
+ if r := recover(); r != nil {
+ f.notifyFail(r)
+ }
+ }()
+
+ for {
+ product := f.center.RequestProduct(takerName(f.name))
+
+ if len(f.testers) > 0 && f.testerAllDone() {
+ f.notifySuccess()
+ f.testers = nil
+ } else if err := f.testerDoWork(product); err != nil {
+ panic(fmt.Errorf("test fail: %v", err))
+ }
+
+ block := f.convertProduct(product)
+ f.stopTimeMu.RLock()
+ f.App.BlockDelivered(block.Hash, block.Position, block.Finalization)
+ f.stopTimeMu.RUnlock()
+ }
+}
+
+func (f BlockDeliveredFactory) convertProduct(product Product) *coreTypes.Block {
+ var block *coreTypes.Block
+ switch product.(type) {
+ case *BlockConfirmedProduct:
+ block = &product.(*BlockConfirmedProduct).block
+ default:
+ panic(fmt.Errorf("unexpected type %T", product))
+ }
+
+ return block
+}
+
+func (f BlockDeliveredFactory) New(app App, center *ProductCenter, stopTimeMu *sync.RWMutex) *BlockDeliveredFactory {
+ f.FactoryBase = FactoryBase{
+ App: app,
+ name: reflect.TypeOf(f).Name(),
+ center: center,
+ targetFunc: app.BlockDelivered,
+ status: make(chan map[singnal]interface{}, 1),
+ stopTimeMu: stopTimeMu,
+ }
+ f.center.Register(takerName(f.name), makerName(reflect.TypeOf(BlockConfirmedFactory{}).Name()))
+ return &f
+}
+
+func (f BlockDeliveredFactory) NewWithTester(app App, center *ProductCenter,
+ stopTimeMu *sync.RWMutex) *BlockDeliveredFactory {
+ factory := f.New(app, center, stopTimeMu)
+ factory.testers = []Tester{
+ bdBlockHashTester{}.New(app, 30, 5, 3),
+ bdBlockDeliveredTester{}.New(app, 60, 5, 3),
+ }
+
+ return factory
+}
+
+type bdBlockHashTester struct {
+ baseTester
+}
+
+func (t bdBlockHashTester) New(app App, startAt, interval, threshold int) *bdBlockHashTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *bdBlockHashTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *BlockConfirmedProduct:
+ t.ready = true
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t bdBlockHashTester) InputsForTest(product Product) []reflect.Value {
+ block := product.(*BlockConfirmedProduct).block
+ return []reflect.Value{reflect.ValueOf(coreCommon.Hash{}), reflect.ValueOf(block.Position),
+ reflect.ValueOf(block.Finalization)}
+}
+
+func (t *bdBlockHashTester) ValidateResults(results []reflect.Value) error {
+ if len(results) != 1 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ switch results[0].Interface().(type) {
+ case error:
+ if results[0].Interface().(error).Error() != "Can not get confirmed block" {
+ return fmt.Errorf("unexpected error: %v", results[0].Interface().(error))
+ }
+ default:
+ return fmt.Errorf("unexpect results[0] return type %T", results[0].Interface())
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+type originalCache struct {
+ confirmedBlocks map[coreCommon.Hash]*blockInfo
+ addressNonce map[common.Address]uint64
+ addressCost map[common.Address]*big.Int
+ addressCounter map[common.Address]uint64
+}
+
+type bdBlockDeliveredTester struct {
+ baseTester
+
+ expectHeight uint64
+ originalCache originalCache
+ blockInfo *blockInfo
+}
+
+func (t bdBlockDeliveredTester) New(app App, startAt, interval, threshold int) *bdBlockDeliveredTester {
+ t.baseTester = baseTester{
+ App: app,
+ testTimer: time.NewTimer(time.Duration(startAt) * time.Second),
+ testInterval: time.Duration(interval) * time.Second,
+ threshold: threshold,
+ self: t,
+ }
+ return &t
+}
+
+func (t *bdBlockDeliveredTester) ViewAndRecord(product Product) {
+ select {
+ case <-t.testTimer.C:
+ switch product.(type) {
+ case *BlockConfirmedProduct:
+ app := t.App.(*DexconApp)
+ block := product.(*BlockConfirmedProduct).block
+ t.expectHeight = block.Position.Height + 1
+ var txs []*types.Transaction
+ _, txs = app.getConfirmedBlockByHash(block.Hash)
+
+ if len(txs) > 0 {
+ t.originalCache.confirmedBlocks = map[coreCommon.Hash]*blockInfo{}
+ for k, v := range app.confirmedBlocks {
+ t.originalCache.confirmedBlocks[k] = v
+ }
+
+ t.originalCache.addressNonce = map[common.Address]uint64{}
+ for k, v := range app.addressNonce {
+ t.originalCache.addressNonce[k] = v
+ }
+
+ t.originalCache.addressCounter = map[common.Address]uint64{}
+ for k, v := range app.addressCounter {
+ t.originalCache.addressCounter[k] = v
+ }
+
+ t.originalCache.addressCost = map[common.Address]*big.Int{}
+ for k, v := range app.addressCost {
+ t.originalCache.addressCost[k] = v
+ }
+
+ t.blockInfo = app.confirmedBlocks[block.Hash]
+ t.ready = true
+ }
+ }
+ t.testTimer.Reset(t.testInterval)
+ default:
+ }
+}
+
+func (t bdBlockDeliveredTester) InputsForTest(product Product) []reflect.Value {
+ block := product.(*BlockConfirmedProduct).block
+ return []reflect.Value{reflect.ValueOf(block.Hash), reflect.ValueOf(block.Position),
+ reflect.ValueOf(block.Finalization)}
+}
+
+func (t *bdBlockDeliveredTester) ValidateResults(results []reflect.Value) error {
+ if len(results) != 0 {
+ return fmt.Errorf("unexpected return values: %v", results)
+ }
+
+ app := t.App.(*DexconApp)
+ if app.deliveredHeight != t.expectHeight {
+ return fmt.Errorf("unexpected delivered height: expect %d but %d", t.expectHeight, app.deliveredHeight)
+ }
+
+ for addr, info := range t.blockInfo.addresses {
+ if t.originalCache.addressCounter[addr] == 1 {
+ _, exist := app.addressNonce[addr]
+ if exist {
+ return fmt.Errorf("nonce cache %v should not exist", addr)
+ }
+
+ _, exist = app.addressCost[addr]
+ if exist {
+ return fmt.Errorf("cost cache %v should not exist", addr)
+ }
+
+ _, exist = app.addressCounter[addr]
+ if exist {
+ return fmt.Errorf("counter cache %v should not exist", addr)
+ }
+ continue
+ }
+
+ if app.addressNonce[addr] != t.originalCache.addressNonce[addr] {
+ return fmt.Errorf("nonce should not be affected")
+ }
+
+ expectCost := new(big.Int).Sub(t.originalCache.addressCost[addr], info.cost)
+ if expectCost.Cmp(app.addressCost[addr]) != 0 {
+ return fmt.Errorf("unexpected cost %v %v vs %v", addr, expectCost, app.addressCost[addr])
+ }
+
+ if app.addressCounter[addr]+1 != t.originalCache.addressCounter[addr] {
+ return fmt.Errorf("unexpected counter %v vs %v", app.addressCounter[addr]+1, t.originalCache.addressCounter[addr])
+ }
+ }
+
+ t.counter++
+ t.ready = false
+ return nil
+}
+
+func (t bdBlockDeliveredTester) StopTime() bool {
+ return true
+}
+
+func (t *bdBlockDeliveredTester) Rollback() error {
+ app := t.App.(*DexconApp)
+ block := app.blockchain.CurrentBlock()
+ app.blockchain.Rollback([]common.Hash{app.blockchain.CurrentBlock().Hash()})
+ rawdb.DeleteCanonicalHash(t.App.(*DexconApp).chainDB, block.NumberU64())
+ time.Sleep(100 * time.Millisecond)
+ app.txPool.Reset(app.blockchain.CurrentBlock().Header())
+
+ app.confirmedBlocks = t.originalCache.confirmedBlocks
+ app.addressNonce = t.originalCache.addressNonce
+ app.addressCost = t.originalCache.addressCost
+ app.addressCounter = t.originalCache.addressCounter
+ app.undeliveredNum++
+ app.deliveredHeight--
+ return nil
+}
+
+type TxFactory struct {
+ FactoryBase
+
+ keys []*ecdsa.PrivateKey
+
+ sendInterval time.Duration
+
+ nonce uint64
+}
+
+func (f *TxFactory) Run() {
+ blockchain := f.App.(*DexconApp).blockchain
+ txPool := f.App.(*DexconApp).txPool
+ for {
+ for i, key := range f.keys {
+ go func(at int, nonce uint64, key *ecdsa.PrivateKey) {
+ f.stopTimeMu.RLock()
+ for i := 0; i < len(f.keys); i++ {
+ if i == at {
+ continue
+ }
+
+ tx := types.NewTransaction(
+ nonce,
+ crypto.PubkeyToAddress(f.keys[i].PublicKey),
+ big.NewInt(1),
+ 21000,
+ big.NewInt(10e9),
+ []byte{})
+
+ signer := types.NewEIP155Signer(blockchain.Config().ChainID)
+
+ tx, err := types.SignTx(tx, signer, key)
+ if err != nil {
+ panic(err)
+ }
+
+ err = txPool.AddLocal(tx)
+ if err != nil {
+ panic(err)
+ }
+ nonce++
+ }
+ f.stopTimeMu.RUnlock()
+ }(i, f.nonce, key)
+ }
+
+ f.nonce += uint64(len(f.keys)) - 1
+
+ time.Sleep(f.sendInterval)
+ }
+}
+
+func (f TxFactory) New(app App, center *ProductCenter, stopTimeMu *sync.RWMutex, keys []*ecdsa.PrivateKey) *TxFactory {
+ f.FactoryBase = FactoryBase{
+ App: app,
+ name: reflect.TypeOf(f).Name(),
+ center: center,
+ stopTimeMu: stopTimeMu,
+ }
+ f.keys = keys
+ f.sendInterval = 1000 * time.Millisecond
+ return &f
+}
+
+func TestDexonApp(t *testing.T) {
+ log.Root().SetHandler(log.LvlFilterHandler(log.LvlDebug, log.StdoutHandler))
+
+ masterKey, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatalf("Generate key fail: %v", err)
+ }
+
+ dex, keys, err := newDexon(masterKey, 15)
+ if err != nil {
+ t.Fatalf("New dexon fail: %v", err)
+ }
+
+ stopTimeMu := &sync.RWMutex{}
+
+ center := ProductCenter{}.New()
+ configFactory := ConfigFactory{}.New(dex.app, center, stopTimeMu, masterKey)
+ preparePayloadFactory := PreparePayloadFactory{}.NewWithTester(dex.app, center, stopTimeMu)
+ prepareWitnessFactory := PrepareWitnessFactory{}.NewWithTester(dex.app, center, stopTimeMu)
+ verifyBlockFactory := VerifyBlockFactory{}.NewWithTester(dex.app, center, stopTimeMu)
+ blockConfirmedFactory := BlockConfirmedFactory{}.NewWithTester(dex.app, center, stopTimeMu, masterKey)
+ blockDeliveredFactory := BlockDeliveredFactory{}.NewWithTester(dex.app, center, stopTimeMu)
+ txFactory := TxFactory{}.New(dex.app, center, stopTimeMu, keys)
+
+ go configFactory.Run()
+ go preparePayloadFactory.Run()
+ go prepareWitnessFactory.Run()
+ go verifyBlockFactory.Run()
+ go blockConfirmedFactory.Run()
+ go blockDeliveredFactory.Run()
+ go txFactory.Run()
+
+ timer := time.NewTimer(300 * time.Second)
+ successRecord := make(map[string]struct{})
+ for {
+ select {
+ case sig := <-preparePayloadFactory.status:
+ if _, exist := sig[runSuccess]; exist {
+ successRecord[reflect.TypeOf(*preparePayloadFactory).Name()] = struct{}{}
+ } else if msg, exist := sig[runFail]; exist {
+ t.Fatalf("preparePayloadFactory error: %v", msg)
+ }
+ case sig := <-prepareWitnessFactory.status:
+ if _, exist := sig[runSuccess]; exist {
+ successRecord[reflect.TypeOf(*prepareWitnessFactory).Name()] = struct{}{}
+ } else if msg, exist := sig[runFail]; exist {
+ t.Fatalf("prepareWitnessFactory error: %v", msg)
+ }
+ case sig := <-verifyBlockFactory.status:
+ if _, exist := sig[runSuccess]; exist {
+ successRecord[reflect.TypeOf(*verifyBlockFactory).Name()] = struct{}{}
+ } else if msg, exist := sig[runFail]; exist {
+ t.Fatalf("verifyBlockFactory error: %v", msg)
+ }
+ case sig := <-blockConfirmedFactory.status:
+ if _, exist := sig[runSuccess]; exist {
+ successRecord[reflect.TypeOf(*blockConfirmedFactory).Name()] = struct{}{}
+ } else if msg, exist := sig[runFail]; exist {
+ t.Fatalf("blockConfirmedFactory error: %v", msg)
+ }
+ case sig := <-blockDeliveredFactory.status:
+ if _, exist := sig[runSuccess]; exist {
+ successRecord[reflect.TypeOf(*blockDeliveredFactory).Name()] = struct{}{}
+ } else if msg, exist := sig[runFail]; exist {
+ t.Fatalf("blockDeliveredFactory error: %v", msg)
+ }
+ case <-timer.C:
+ t.Fatalf("time's up and all test is not finish yet: %v", successRecord)
+ }
+
+ leftTesterCount := len(preparePayloadFactory.testers) + len(prepareWitnessFactory.testers) +
+ len(verifyBlockFactory.testers) + len(blockConfirmedFactory.testers) + len(blockDeliveredFactory.testers)
+ if leftTesterCount == 0 {
+ t.Logf("tests all pass")
+ break
+ }
+
+ time.Sleep(1 * time.Second)
+ }
+}
+
+func newDexon(masterKey *ecdsa.PrivateKey, accountNum int) (*Dexon, []*ecdsa.PrivateKey, error) {
+ db := ethdb.NewMemDatabase()
+
+ genesis := core.DefaultTestnetGenesisBlock()
+ genesis.Alloc = core.GenesisAlloc{
+ crypto.PubkeyToAddress(masterKey.PublicKey): {
+ Balance: big.NewInt(100000000000000000),
+ Staked: big.NewInt(50000000000000000),
+ PublicKey: crypto.FromECDSAPub(&masterKey.PublicKey),
+ },
+ }
+
+ var accounts []*ecdsa.PrivateKey
+ for i := 0; i < accountNum; i++ {
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ panic(err)
+ }
+
+ genesis.Alloc[crypto.PubkeyToAddress(key.PublicKey)] = core.GenesisAccount{
+ Balance: math.BigPow(10, 18),
+ Staked: big.NewInt(0),
+ }
+ accounts = append(accounts, key)
+ }
+
+ genesis.Config.Dexcon.BlockGasLimit = 2000000
+ genesis.Config.Dexcon.RoundLength = 60
+ genesis.Config.Dexcon.Owner = crypto.PubkeyToAddress(masterKey.PublicKey)
+
+ chainConfig, _, err := core.SetupGenesisBlock(db, genesis)
+ if err != nil {
+ return nil, nil, err
+ }
+
+ config := Config{PrivateKey: masterKey}
+ vmConfig := vm.Config{IsBlockProposer: true}
+
+ engine := dexcon.New()
+
+ dex := &Dexon{
+ chainDb: db,
+ chainConfig: chainConfig,
+ networkID: config.NetworkId,
+ engine: engine,
+ }
+
+ dex.blockchain, err = core.NewBlockChain(db, nil, chainConfig, engine, vmConfig, nil)
+ if err != nil {
+ return nil, nil, err
+ }
+
+ txPoolConfig := core.DefaultTxPoolConfig
+ dex.txPool = core.NewTxPool(txPoolConfig, chainConfig, dex.blockchain)
+
+ dex.APIBackend = &DexAPIBackend{dex, nil}
+ dex.governance = NewDexconGovernance(dex.APIBackend, dex.chainConfig, config.PrivateKey)
+ engine.SetGovStateFetcher(dex.governance)
+ dex.app = NewDexconApp(dex.txPool, dex.blockchain, dex.governance, db, &config)
+
+ return dex, accounts, nil
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 16:38:16 +0800