neoneo-go/pkg/core/helper_test.go

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package core
import (
"bytes"
"encoding/hex"
"encoding/json"
"fmt"
"io/ioutil"
"math/big"
"os"
"testing"
"time"
"github.com/nspcc-dev/neo-go/internal/testchain"
"github.com/nspcc-dev/neo-go/internal/testserdes"
"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/chaindump"
"github.com/nspcc-dev/neo-go/pkg/core/fee"
"github.com/nspcc-dev/neo-go/pkg/core/native"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/stretchr/testify/require"
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"go.uber.org/zap/zaptest"
)
// multisig address which possess all NEO
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var neoOwner = testchain.MultisigScriptHash()
// newTestChain should be called before newBlock invocation to properly setup
// global state.
func newTestChain(t *testing.T) *Blockchain {
return newTestChainWithCustomCfg(t, nil)
}
func newTestChainWithCustomCfg(t *testing.T, f func(*config.Config)) *Blockchain {
return newTestChainWithCustomCfgAndStore(t, nil, f)
}
func newTestChainWithCustomCfgAndStore(t *testing.T, st storage.Store, f func(*config.Config)) *Blockchain {
chain := initTestChain(t, st, f)
go chain.Run()
return chain
}
func initTestChain(t *testing.T, st storage.Store, f func(*config.Config)) *Blockchain {
unitTestNetCfg, err := config.Load("../../config", testchain.Network())
require.NoError(t, err)
if f != nil {
f(&unitTestNetCfg)
}
if st == nil {
st = storage.NewMemoryStore()
}
chain, err := NewBlockchain(st, unitTestNetCfg.ProtocolConfiguration, zaptest.NewLogger(t))
require.NoError(t, err)
return chain
}
func (bc *Blockchain) newBlock(txs ...*transaction.Transaction) *block.Block {
lastBlock, ok := bc.topBlock.Load().(*block.Block)
if !ok {
var err error
lastBlock, err = bc.GetBlock(bc.GetHeaderHash(int(bc.BlockHeight())))
if err != nil {
panic(err)
}
}
if bc.config.StateRootInHeader {
sr, err := bc.GetStateRoot(bc.BlockHeight())
if err != nil {
panic(err)
}
return newBlockWithState(bc.config, lastBlock.Index+1, lastBlock.Hash(), &sr.Root, txs...)
}
return newBlock(bc.config, lastBlock.Index+1, lastBlock.Hash(), txs...)
}
func newBlock(cfg config.ProtocolConfiguration, index uint32, prev util.Uint256, txs ...*transaction.Transaction) *block.Block {
return newBlockWithState(cfg, index, prev, nil, txs...)
}
func newBlockWithState(cfg config.ProtocolConfiguration, index uint32, prev util.Uint256,
prevState *util.Uint256, txs ...*transaction.Transaction) *block.Block {
validators, _ := validatorsFromConfig(cfg)
valScript, _ := smartcontract.CreateDefaultMultiSigRedeemScript(validators)
witness := transaction.Witness{
VerificationScript: valScript,
}
b := &block.Block{
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Base: block.Base{
Network: testchain.Network(),
Version: 0,
PrevHash: prev,
Timestamp: uint64(time.Now().UTC().Unix())*1000 + uint64(index),
Index: index,
NextConsensus: witness.ScriptHash(),
Script: witness,
},
ConsensusData: block.ConsensusData{
PrimaryIndex: 0,
Nonce: 1111,
},
Transactions: txs,
}
if prevState != nil {
b.StateRootEnabled = true
b.PrevStateRoot = *prevState
}
b.RebuildMerkleRoot()
b.Script.InvocationScript = testchain.Sign(b.GetSignedPart())
return b
}
func (bc *Blockchain) genBlocks(n int) ([]*block.Block, error) {
blocks := make([]*block.Block, n)
lastHash := bc.topBlock.Load().(*block.Block).Hash()
lastIndex := bc.topBlock.Load().(*block.Block).Index
for i := 0; i < n; i++ {
blocks[i] = newBlock(bc.config, uint32(i)+lastIndex+1, lastHash)
if err := bc.AddBlock(blocks[i]); err != nil {
return blocks, err
}
lastHash = blocks[i].Hash()
}
return blocks, nil
}
func getDecodedBlock(t *testing.T, i int) *block.Block {
data, err := getBlockData(i)
require.NoError(t, err)
b, err := hex.DecodeString(data["raw"].(string))
require.NoError(t, err)
block := block.New(testchain.Network(), false)
require.NoError(t, testserdes.DecodeBinary(b, block))
return block
}
func getBlockData(i int) (map[string]interface{}, error) {
b, err := ioutil.ReadFile(fmt.Sprintf("test_data/block_%d.json", i))
if err != nil {
return nil, err
}
var data map[string]interface{}
if err := json.Unmarshal(b, &data); err != nil {
return nil, err
}
return data, err
}
func newDumbBlock() *block.Block {
return &block.Block{
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Base: block.Base{
Network: testchain.Network(),
Version: 0,
PrevHash: hash.Sha256([]byte("a")),
MerkleRoot: hash.Sha256([]byte("b")),
Timestamp: 100500,
Index: 1,
NextConsensus: hash.Hash160([]byte("a")),
Script: transaction.Witness{
VerificationScript: []byte{0x51}, // PUSH1
InvocationScript: []byte{0x61}, // NOP
},
},
ConsensusData: block.ConsensusData{
PrimaryIndex: 0,
Nonce: 1111,
},
Transactions: []*transaction.Transaction{
transaction.New(testchain.Network(), []byte{byte(opcode.PUSH1)}, 0),
},
}
}
// This function generates "../rpc/testdata/testblocks.acc" file which contains data
// for RPC unit tests. It also is a nice integration test.
// To generate new "../rpc/testdata/testblocks.acc", follow the steps:
// 1. Set saveChain down below to true
// 2. Run tests with `$ make test`
func TestCreateBasicChain(t *testing.T) {
const saveChain = false
const prefix = "../rpc/server/testdata/"
bc := newTestChain(t)
defer bc.Close()
initBasicChain(t, bc)
if saveChain {
outStream, err := os.Create(prefix + "testblocks.acc")
require.NoError(t, err)
defer outStream.Close()
writer := io.NewBinWriterFromIO(outStream)
writer.WriteU32LE(bc.BlockHeight())
err = chaindump.Dump(bc, writer, 1, bc.BlockHeight())
require.NoError(t, err)
}
priv0 := testchain.PrivateKeyByID(0)
priv1 := testchain.PrivateKeyByID(1)
priv0ScriptHash := priv0.GetScriptHash()
acc0 := wallet.NewAccountFromPrivateKey(priv0)
// Prepare some transaction for future submission.
txSendRaw := newNEP17Transfer(bc.contracts.NEO.Hash, priv0ScriptHash, priv1.GetScriptHash(), int64(fixedn.Fixed8FromInt64(1000)))
txSendRaw.ValidUntilBlock = transaction.MaxValidUntilBlockIncrement
txSendRaw.Nonce = 0x1234
txSendRaw.Signers = []transaction.Signer{{
Account: priv0ScriptHash,
Scopes: transaction.CalledByEntry,
AllowedContracts: nil,
AllowedGroups: nil,
}}
require.NoError(t, addNetworkFee(bc, txSendRaw, acc0))
require.NoError(t, acc0.SignTx(txSendRaw))
bw := io.NewBufBinWriter()
txSendRaw.EncodeBinary(bw.BinWriter)
t.Logf("sendrawtransaction: %s", hex.EncodeToString(bw.Bytes()))
require.False(t, saveChain)
}
func initBasicChain(t *testing.T, bc *Blockchain) {
const prefix = "../rpc/server/testdata/"
// Increase in case if you need more blocks
const validUntilBlock = 1200
// To be incremented after each created transaction to keep chain constant.
var testNonce uint32 = 1
// Use as nonce when new transaction is created to avoid random data in tests.
getNextNonce := func() uint32 {
testNonce++
return testNonce
}
const neoAmount = 99999000
gasHash := bc.contracts.GAS.Hash
neoHash := bc.contracts.NEO.Hash
policyHash := bc.contracts.Policy.Hash
t.Logf("native GAS hash: %v", gasHash)
t.Logf("native NEO hash: %v", neoHash)
t.Logf("native Policy hash: %v", policyHash)
priv0 := testchain.PrivateKeyByID(0)
priv0ScriptHash := priv0.GetScriptHash()
require.Equal(t, big.NewInt(5000_0000), bc.GetUtilityTokenBalance(priv0ScriptHash)) // gas bounty
// Move some NEO to one simple account.
txMoveNeo, err := testchain.NewTransferFromOwner(bc, neoHash, priv0ScriptHash, neoAmount, getNextNonce(), validUntilBlock)
require.NoError(t, err)
// Move some GAS to one simple account.
txMoveGas, err := testchain.NewTransferFromOwner(bc, gasHash, priv0ScriptHash, int64(fixedn.Fixed8FromInt64(1000)),
getNextNonce(), validUntilBlock)
require.NoError(t, err)
b := bc.newBlock(txMoveNeo, txMoveGas)
require.NoError(t, bc.AddBlock(b))
t.Logf("Block1 hash: %s", b.Hash().StringLE())
bw := io.NewBufBinWriter()
b.EncodeBinary(bw.BinWriter)
require.NoError(t, bw.Err)
t.Logf("Block1 hex: %s", hex.EncodeToString(bw.Bytes()))
t.Logf("txMoveNeo hash: %s", txMoveNeo.Hash().StringLE())
t.Logf("txMoveNeo hex: %s", hex.EncodeToString(txMoveNeo.Bytes()))
t.Logf("txMoveGas hash: %s", txMoveGas.Hash().StringLE())
require.True(t, bc.GetUtilityTokenBalance(priv0ScriptHash).Cmp(big.NewInt(1000*native.GASFactor)) >= 0)
// info for getblockheader rpc tests
t.Logf("header hash: %s", b.Hash().StringLE())
buf := io.NewBufBinWriter()
b.Header().EncodeBinary(buf.BinWriter)
t.Logf("header: %s", hex.EncodeToString(buf.Bytes()))
acc0 := wallet.NewAccountFromPrivateKey(priv0)
// Push some contract into the chain.
txDeploy, cHash := newDeployTx(t, bc, priv0ScriptHash, prefix+"test_contract.go", "Rubl")
txDeploy.Nonce = getNextNonce()
txDeploy.ValidUntilBlock = validUntilBlock
require.NoError(t, addNetworkFee(bc, txDeploy, acc0))
require.NoError(t, acc0.SignTx(txDeploy))
b = bc.newBlock(txDeploy)
require.NoError(t, bc.AddBlock(b))
t.Logf("txDeploy: %s", txDeploy.Hash().StringLE())
t.Logf("Block2 hash: %s", b.Hash().StringLE())
// Now invoke this contract.
script := io.NewBufBinWriter()
emit.AppCall(script.BinWriter, cHash, "putValue", callflag.All, "testkey", "testvalue")
txInv := transaction.New(testchain.Network(), script.Bytes(), 1*native.GASFactor)
txInv.Nonce = getNextNonce()
txInv.ValidUntilBlock = validUntilBlock
txInv.Signers = []transaction.Signer{{Account: priv0ScriptHash}}
require.NoError(t, addNetworkFee(bc, txInv, acc0))
require.NoError(t, acc0.SignTx(txInv))
b = bc.newBlock(txInv)
require.NoError(t, bc.AddBlock(b))
t.Logf("txInv: %s", txInv.Hash().StringLE())
priv1 := testchain.PrivateKeyByID(1)
txNeo0to1 := newNEP17Transfer(neoHash, priv0ScriptHash, priv1.GetScriptHash(), 1000)
txNeo0to1.Nonce = getNextNonce()
txNeo0to1.ValidUntilBlock = validUntilBlock
txNeo0to1.Signers = []transaction.Signer{
{
Account: priv0ScriptHash,
Scopes: transaction.CalledByEntry,
AllowedContracts: nil,
AllowedGroups: nil,
},
}
require.NoError(t, addNetworkFee(bc, txNeo0to1, acc0))
require.NoError(t, acc0.SignTx(txNeo0to1))
b = bc.newBlock(txNeo0to1)
require.NoError(t, bc.AddBlock(b))
w := io.NewBufBinWriter()
emit.AppCall(w.BinWriter, cHash, "init", callflag.All)
initTx := transaction.New(testchain.Network(), w.Bytes(), 1*native.GASFactor)
initTx.Nonce = getNextNonce()
initTx.ValidUntilBlock = validUntilBlock
initTx.Signers = []transaction.Signer{{Account: priv0ScriptHash}}
require.NoError(t, addNetworkFee(bc, initTx, acc0))
require.NoError(t, acc0.SignTx(initTx))
transferTx := newNEP17Transfer(cHash, cHash, priv0.GetScriptHash(), 1000)
transferTx.Nonce = getNextNonce()
transferTx.ValidUntilBlock = validUntilBlock
transferTx.Signers = []transaction.Signer{
{
Account: priv0ScriptHash,
Scopes: transaction.CalledByEntry,
AllowedContracts: nil,
AllowedGroups: nil,
},
}
require.NoError(t, addNetworkFee(bc, transferTx, acc0))
require.NoError(t, acc0.SignTx(transferTx))
b = bc.newBlock(initTx, transferTx)
require.NoError(t, bc.AddBlock(b))
t.Logf("recieveRublesTx: %v", transferTx.Hash().StringLE())
transferTx = newNEP17Transfer(cHash, priv0.GetScriptHash(), priv1.GetScriptHash(), 123)
transferTx.Nonce = getNextNonce()
transferTx.ValidUntilBlock = validUntilBlock
transferTx.Signers = []transaction.Signer{
{
Account: priv0ScriptHash,
Scopes: transaction.CalledByEntry,
AllowedContracts: nil,
AllowedGroups: nil,
},
}
require.NoError(t, addNetworkFee(bc, transferTx, acc0))
require.NoError(t, acc0.SignTx(transferTx))
b = bc.newBlock(transferTx)
require.NoError(t, bc.AddBlock(b))
t.Logf("sendRublesTx: %v", transferTx.Hash().StringLE())
// Push verification contract into the chain.
txDeploy2, _ := newDeployTx(t, bc, priv0ScriptHash, prefix+"verification_contract.go", "Verify")
txDeploy2.Nonce = getNextNonce()
txDeploy2.ValidUntilBlock = validUntilBlock
require.NoError(t, addNetworkFee(bc, txDeploy2, acc0))
require.NoError(t, acc0.SignTx(txDeploy2))
b = bc.newBlock(txDeploy2)
require.NoError(t, bc.AddBlock(b))
}
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func newNEP17Transfer(sc, from, to util.Uint160, amount int64, additionalArgs ...interface{}) *transaction.Transaction {
w := io.NewBufBinWriter()
emit.AppCall(w.BinWriter, sc, "transfer", callflag.All, from, to, amount, additionalArgs)
emit.Opcodes(w.BinWriter, opcode.ASSERT)
script := w.Bytes()
return transaction.New(testchain.Network(), script, 11000000)
}
func newDeployTx(t *testing.T, bc *Blockchain, sender util.Uint160, name, ctrName string) (*transaction.Transaction, util.Uint160) {
c, err := ioutil.ReadFile(name)
require.NoError(t, err)
tx, h, err := testchain.NewDeployTx(bc, ctrName, sender, bytes.NewReader(c))
require.NoError(t, err)
t.Logf("contractHash (%s): %s", name, h.StringLE())
return tx, h
}
func addSigners(sender util.Uint160, txs ...*transaction.Transaction) {
for _, tx := range txs {
tx.Signers = []transaction.Signer{{
Account: sender,
Scopes: transaction.CalledByEntry,
AllowedContracts: nil,
AllowedGroups: nil,
}}
}
}
func addNetworkFee(bc *Blockchain, tx *transaction.Transaction, sender *wallet.Account) error {
size := io.GetVarSize(tx)
netFee, sizeDelta := fee.Calculate(bc.GetBaseExecFee(), sender.Contract.Script)
tx.NetworkFee += netFee
size += sizeDelta
for _, cosigner := range tx.Signers {
contract := bc.GetContractState(cosigner.Account)
if contract != nil {
netFee, sizeDelta = fee.Calculate(bc.GetBaseExecFee(), contract.NEF.Script)
tx.NetworkFee += netFee
size += sizeDelta
}
}
tx.NetworkFee += int64(size) * bc.FeePerByte()
return nil
}
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func prepareContractMethodInvokeGeneric(chain *Blockchain, sysfee int64,
hash util.Uint160, method string, isCommittee bool, args ...interface{}) (*transaction.Transaction, error) {
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w := io.NewBufBinWriter()
emit.AppCall(w.BinWriter, hash, method, callflag.All, args...)
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if w.Err != nil {
return nil, w.Err
}
script := w.Bytes()
tx := transaction.New(chain.GetConfig().Magic, script, sysfee)
tx.ValidUntilBlock = chain.blockHeight + 1
var err error
if isCommittee {
addSigners(testchain.CommitteeScriptHash(), tx)
err = testchain.SignTxCommittee(chain, tx)
} else {
addSigners(neoOwner, tx)
err = testchain.SignTx(chain, tx)
}
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if err != nil {
return nil, err
}
return tx, nil
}
func prepareContractMethodInvoke(chain *Blockchain, sysfee int64,
hash util.Uint160, method string, args ...interface{}) (*transaction.Transaction, error) {
return prepareContractMethodInvokeGeneric(chain, sysfee, hash,
method, false, args...)
}
func persistBlock(chain *Blockchain, txs ...*transaction.Transaction) ([]*state.AppExecResult, error) {
b := chain.newBlock(txs...)
err := chain.AddBlock(b)
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if err != nil {
return nil, err
}
aers := make([]*state.AppExecResult, len(txs))
for i, tx := range txs {
res, err := chain.GetAppExecResults(tx.Hash(), trigger.Application)
if err != nil {
return nil, err
}
aers[i] = &res[0]
}
return aers, nil
}
func invokeContractMethod(chain *Blockchain, sysfee int64, hash util.Uint160, method string, args ...interface{}) (*state.AppExecResult, error) {
return invokeContractMethodGeneric(chain, sysfee, hash, method, false, args...)
}
func invokeContractMethodGeneric(chain *Blockchain, sysfee int64, hash util.Uint160, method string,
isCommittee bool, args ...interface{}) (*state.AppExecResult, error) {
tx, err := prepareContractMethodInvokeGeneric(chain, sysfee, hash,
method, isCommittee, args...)
if err != nil {
return nil, err
}
aers, err := persistBlock(chain, tx)
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if err != nil {
return nil, err
}
return aers[0], nil
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}
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func invokeContractMethodBy(t *testing.T, chain *Blockchain, signer *wallet.Account, hash util.Uint160, method string, args ...interface{}) (*state.AppExecResult, error) {
var (
netfee int64 = 1000_0000
sysfee int64 = 1_0000_0000
)
transferTx := transferTokenFromMultisigAccount(t, chain, signer.PrivateKey().PublicKey().GetScriptHash(), chain.contracts.GAS.Hash, sysfee+netfee+1000_0000, nil)
res, err := chain.GetAppExecResults(transferTx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, vm.HaltState, res[0].VMState)
require.Equal(t, 0, len(res[0].Stack))
w := io.NewBufBinWriter()
emit.AppCall(w.BinWriter, hash, method, callflag.All, args...)
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if w.Err != nil {
return nil, w.Err
}
script := w.Bytes()
tx := transaction.New(chain.GetConfig().Magic, script, sysfee)
tx.ValidUntilBlock = chain.blockHeight + 1
tx.Signers = []transaction.Signer{
{Account: signer.PrivateKey().PublicKey().GetScriptHash()},
}
tx.NetworkFee = netfee
err = signer.SignTx(tx)
require.NoError(t, err)
require.NoError(t, chain.AddBlock(chain.newBlock(tx)))
res, err = chain.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
return &res[0], nil
}
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func transferTokenFromMultisigAccount(t *testing.T, chain *Blockchain, to, tokenHash util.Uint160, amount int64, additionalArgs ...interface{}) *transaction.Transaction {
transferTx := newNEP17Transfer(tokenHash, testchain.MultisigScriptHash(), to, amount, additionalArgs...)
transferTx.SystemFee = 100000000
transferTx.ValidUntilBlock = chain.BlockHeight() + 1
addSigners(neoOwner, transferTx)
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require.NoError(t, testchain.SignTx(chain, transferTx))
b := chain.newBlock(transferTx)
require.NoError(t, chain.AddBlock(b))
return transferTx
}
func checkResult(t *testing.T, result *state.AppExecResult, expected stackitem.Item) {
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require.Equal(t, vm.HaltState, result.VMState, result.FaultException)
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require.Equal(t, 1, len(result.Stack))
require.Equal(t, expected, result.Stack[0])
}
func checkFAULTState(t *testing.T, result *state.AppExecResult) {
require.Equal(t, vm.FaultState, result.VMState)
}
func checkBalanceOf(t *testing.T, chain *Blockchain, addr util.Uint160, expected int) {
balance := chain.GetNEP17Balances(addr).Trackers[chain.contracts.GAS.ContractID]
require.Equal(t, int64(expected), balance.Balance.Int64())
}