neoneo-go/pkg/core/helper_test.go

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package core
import (
"encoding/hex"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"testing"
"time"
"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/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/internal/testchain"
"github.com/nspcc-dev/neo-go/pkg/internal/testserdes"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/pkg/errors"
"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 {
unitTestNetCfg, err := config.Load("../../config", config.ModeUnitTestNet)
require.NoError(t, err)
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chain, err := NewBlockchain(storage.NewMemoryStore(), unitTestNetCfg.ProtocolConfiguration, zaptest.NewLogger(t))
require.NoError(t, err)
go chain.Run()
return chain
}
func (bc *Blockchain) newBlock(txs ...*transaction.Transaction) *block.Block {
lastBlock := bc.topBlock.Load().(*block.Block)
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 {
validators, _ := getValidators(cfg)
vlen := len(validators)
valScript, _ := smartcontract.CreateMultiSigRedeemScript(
vlen-(vlen-1)/3,
validators,
)
witness := transaction.Witness{
VerificationScript: valScript,
}
b := &block.Block{
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Base: block.Base{
Version: 0,
PrevHash: prev,
Timestamp: uint64(time.Now().UTC().Unix()) + uint64(index),
Index: index,
NextConsensus: witness.ScriptHash(),
Script: witness,
},
ConsensusData: block.ConsensusData{
PrimaryIndex: 0,
Nonce: 1111,
},
Transactions: txs,
}
err := b.RebuildMerkleRoot()
if err != nil {
panic(err)
}
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.Block{}
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{
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{
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transaction.NewInvocationTX([]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/"
// To make enough GAS.
const numOfEmptyBlocks = 200
// Increase in case if you need more blocks
const validUntilBlock = numOfEmptyBlocks + 1000
// 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
bc := newTestChain(t)
defer bc.Close()
gasHash := bc.contracts.GAS.Hash
neoHash := bc.contracts.NEO.Hash
t.Logf("native GAS hash: %v", gasHash)
t.Logf("native NEO hash: %v", neoHash)
priv0 := testchain.PrivateKeyByID(0)
priv0ScriptHash := priv0.GetScriptHash()
require.Equal(t, util.Fixed8FromInt64(0), bc.GetUtilityTokenBalance(priv0ScriptHash))
// Move some NEO to one simple account.
txMoveNeo := newNEP5Transfer(neoHash, neoOwner, priv0ScriptHash, neoAmount)
txMoveNeo.ValidUntilBlock = validUntilBlock
txMoveNeo.Nonce = getNextNonce()
txMoveNeo.Sender = neoOwner
txMoveNeo.Cosigners = []transaction.Cosigner{{
Account: neoOwner,
Scopes: transaction.CalledByEntry,
AllowedContracts: nil,
AllowedGroups: nil,
}}
require.NoError(t, signTx(bc, txMoveNeo))
// Move some GAS to one simple account.
txMoveGas := newNEP5Transfer(gasHash, neoOwner, priv0ScriptHash, int64(util.Fixed8FromInt64(1000)))
txMoveGas.ValidUntilBlock = validUntilBlock
txMoveGas.Nonce = getNextNonce()
txMoveGas.Sender = neoOwner
txMoveGas.Cosigners = []transaction.Cosigner{{
Account: neoOwner,
Scopes: transaction.CalledByEntry,
AllowedContracts: nil,
AllowedGroups: nil,
}}
require.NoError(t, signTx(bc, txMoveGas))
b := bc.newBlock(txMoveNeo, txMoveGas)
require.NoError(t, bc.AddBlock(b))
t.Logf("txMoveNeo: %s", txMoveNeo.Hash().StringLE())
t.Logf("txMoveGas: %s", txMoveGas.Hash().StringLE())
require.Equal(t, util.Fixed8FromInt64(1000), bc.GetUtilityTokenBalance(priv0ScriptHash))
// 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, err := wallet.NewAccountFromWIF(priv0.WIF())
require.NoError(t, err)
// Push some contract into the chain.
avm, err := ioutil.ReadFile(prefix + "test_contract.avm")
require.NoError(t, err)
t.Logf("contractHash: %s", hash.Hash160(avm).StringLE())
var props smartcontract.PropertyState
script := io.NewBufBinWriter()
emit.Bytes(script.BinWriter, []byte("Da contract dat hallos u"))
emit.Bytes(script.BinWriter, []byte("joe@example.com"))
emit.Bytes(script.BinWriter, []byte("Random Guy"))
emit.Bytes(script.BinWriter, []byte("0.99"))
emit.Bytes(script.BinWriter, []byte("Helloer"))
props |= smartcontract.HasStorage
emit.Int(script.BinWriter, int64(props))
emit.Int(script.BinWriter, int64(5))
params := make([]byte, 1)
params[0] = byte(7)
emit.Bytes(script.BinWriter, params)
emit.Bytes(script.BinWriter, avm)
emit.Syscall(script.BinWriter, "Neo.Contract.Create")
txScript := script.Bytes()
invFee := util.Fixed8FromFloat(100)
txDeploy := transaction.NewInvocationTX(txScript, invFee)
txDeploy.Nonce = getNextNonce()
txDeploy.ValidUntilBlock = validUntilBlock
txDeploy.Sender = priv0ScriptHash
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())
// Now invoke this contract.
script = io.NewBufBinWriter()
emit.AppCallWithOperationAndArgs(script.BinWriter, hash.Hash160(avm), "Put", "testkey", "testvalue")
txInv := transaction.NewInvocationTX(script.Bytes(), 0)
txInv.Nonce = getNextNonce()
txInv.ValidUntilBlock = validUntilBlock
txInv.Sender = 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 := newNEP5Transfer(neoHash, priv0ScriptHash, priv1.GetScriptHash(), 1000)
txNeo0to1.Nonce = getNextNonce()
txNeo0to1.ValidUntilBlock = validUntilBlock
txNeo0to1.Sender = priv0ScriptHash
txNeo0to1.Cosigners = []transaction.Cosigner{
{
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))
sh := hash.Hash160(avm)
w := io.NewBufBinWriter()
emit.AppCallWithOperationAndArgs(w.BinWriter, sh, "init")
initTx := transaction.NewInvocationTX(w.Bytes(), 0)
initTx.Nonce = getNextNonce()
initTx.ValidUntilBlock = validUntilBlock
initTx.Sender = priv0ScriptHash
require.NoError(t, addNetworkFee(bc, initTx, acc0))
require.NoError(t, acc0.SignTx(initTx))
transferTx := newNEP5Transfer(sh, sh, priv0.GetScriptHash(), 1000)
transferTx.Nonce = getNextNonce()
transferTx.ValidUntilBlock = validUntilBlock
transferTx.Sender = priv0ScriptHash
transferTx.Cosigners = []transaction.Cosigner{
{
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 = newNEP5Transfer(sh, priv0.GetScriptHash(), priv1.GetScriptHash(), 123)
transferTx.Nonce = getNextNonce()
transferTx.ValidUntilBlock = validUntilBlock
transferTx.Sender = priv0ScriptHash
transferTx.Cosigners = []transaction.Cosigner{
{
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())
if saveChain {
outStream, err := os.Create(prefix + "testblocks.acc")
require.NoError(t, err)
defer outStream.Close()
writer := io.NewBinWriterFromIO(outStream)
count := bc.BlockHeight() + 1
writer.WriteU32LE(count - 1)
for i := 1; i < int(count); i++ {
bh := bc.GetHeaderHash(i)
b, err := bc.GetBlock(bh)
require.NoError(t, err)
bytes, err := testserdes.EncodeBinary(b)
require.NoError(t, err)
writer.WriteU32LE(uint32(len(bytes)))
writer.WriteBytes(bytes)
require.NoError(t, writer.Err)
}
}
// Prepare some transaction for future submission.
txSendRaw := newNEP5Transfer(neoHash, priv0ScriptHash, priv1.GetScriptHash(), int64(util.Fixed8FromInt64(1000)))
txSendRaw.ValidUntilBlock = validUntilBlock
txSendRaw.Nonce = getNextNonce()
txSendRaw.Sender = priv0ScriptHash
txSendRaw.Cosigners = []transaction.Cosigner{{
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()))
}
func newNEP5Transfer(sc, from, to util.Uint160, amount int64) *transaction.Transaction {
w := io.NewBufBinWriter()
emit.AppCallWithOperationAndArgs(w.BinWriter, sc, "transfer", from, to, amount)
emit.Opcode(w.BinWriter, opcode.ASSERT)
script := w.Bytes()
return transaction.NewInvocationTX(script, 0)
}
func addSender(txs ...*transaction.Transaction) error {
for _, tx := range txs {
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tx.Sender = neoOwner
}
return nil
}
func signTx(bc *Blockchain, txs ...*transaction.Transaction) error {
validators, err := getValidators(bc.config)
if err != nil {
return errors.Wrap(err, "fail to sign tx")
}
rawScript, err := smartcontract.CreateMultiSigRedeemScript(len(bc.config.StandbyValidators)/2+1, validators)
if err != nil {
return errors.Wrap(err, "fail to sign tx")
}
for _, tx := range txs {
size := io.GetVarSize(tx)
netFee, sizeDelta := CalculateNetworkFee(rawScript)
tx.NetworkFee = tx.NetworkFee.Add(netFee)
size += sizeDelta
tx.NetworkFee = tx.NetworkFee.Add(util.Fixed8(int64(size) * int64(bc.FeePerByte())))
data := tx.GetSignedPart()
tx.Scripts = []transaction.Witness{{
InvocationScript: testchain.Sign(data),
VerificationScript: rawScript,
}}
}
return nil
}
func addNetworkFee(bc *Blockchain, tx *transaction.Transaction, sender *wallet.Account) error {
size := io.GetVarSize(tx)
netFee, sizeDelta := CalculateNetworkFee(sender.Contract.Script)
tx.NetworkFee += netFee
size += sizeDelta
for _, cosigner := range tx.Cosigners {
contract := bc.GetContractState(cosigner.Account)
if contract != nil {
netFee, sizeDelta = CalculateNetworkFee(contract.Script)
tx.NetworkFee += netFee
size += sizeDelta
}
}
tx.NetworkFee += util.Fixed8(int64(size) * int64(bc.FeePerByte()))
return nil
}