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/crypto/keys"
"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/stretchr/testify/require"
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"go.uber.org/zap/zaptest"
)
var privNetKeys = []string{
"KxyjQ8eUa4FHt3Gvioyt1Wz29cTUrE4eTqX3yFSk1YFCsPL8uNsY",
"KzfPUYDC9n2yf4fK5ro4C8KMcdeXtFuEnStycbZgX3GomiUsvX6W",
"KzgWE3u3EDp13XPXXuTKZxeJ3Gi8Bsm8f9ijY3ZsCKKRvZUo1Cdn",
"L2oEXKRAAMiPEZukwR5ho2S6SMeQLhcK9mF71ZnF7GvT8dU4Kkgz",
}
// 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,
}
if len(txs) == 0 {
txs = []*transaction.Transaction{newMinerTX()}
}
b := &block.Block{
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Base: block.Base{
Version: 0,
PrevHash: prev,
Timestamp: uint32(time.Now().UTC().Unix()) + index,
Index: index,
ConsensusData: 1111,
NextConsensus: witness.ScriptHash(),
Script: witness,
},
Transactions: txs,
}
err := b.RebuildMerkleRoot()
if err != nil {
panic(err)
}
invScript := make([]byte, 0)
for _, wif := range privNetKeys {
pKey, err := keys.NewPrivateKeyFromWIF(wif)
if err != nil {
panic(err)
}
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b := b.GetHashableData()
sig := pKey.Sign(b)
if len(sig) != 64 {
panic("wrong signature length")
}
invScript = append(invScript, byte(opcode.PUSHBYTES64))
invScript = append(invScript, sig...)
}
b.Script.InvocationScript = invScript
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, newMinerTX())
if err := bc.AddBlock(blocks[i]); err != nil {
return blocks, err
}
lastHash = blocks[i].Hash()
}
return blocks, nil
}
func newMinerTX() *transaction.Transaction {
return &transaction.Transaction{
Type: transaction.MinerType,
Data: &transaction.MinerTX{},
}
}
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: uint32(100500),
Index: 1,
ConsensusData: 1111,
NextConsensus: hash.Hash160([]byte("a")),
Script: transaction.Witness{
VerificationScript: []byte{0x51}, // PUSH1
InvocationScript: []byte{0x61}, // NOP
},
},
Transactions: []*transaction.Transaction{
{Type: transaction.MinerType},
{Type: transaction.IssueType},
},
}
}
func getInvocationScript(data []byte, priv *keys.PrivateKey) []byte {
signature := priv.Sign(data)
return append([]byte{byte(opcode.PUSHBYTES64)}, signature...)
}
// 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
var neoAmount = util.Fixed8FromInt64(99999000)
var neoRemainder = util.Fixed8FromInt64(100000000) - neoAmount
bc := newTestChain(t)
// Move almost all NEO to one simple account.
txMoveNeo := transaction.NewContractTX()
h, err := util.Uint256DecodeStringBE("6da730b566db183bfceb863b780cd92dee2b497e5a023c322c1eaca81cf9ad7a")
require.NoError(t, err)
txMoveNeo.AddInput(&transaction.Input{
PrevHash: h,
PrevIndex: 0,
})
// multisig address which possess all NEO
scriptHash, err := util.Uint160DecodeStringBE("be48d3a3f5d10013ab9ffee489706078714f1ea2")
require.NoError(t, err)
priv0, err := keys.NewPrivateKeyFromWIF(privNetKeys[0])
require.NoError(t, err)
txMoveNeo.AddOutput(&transaction.Output{
AssetID: GoverningTokenID(),
Amount: neoAmount,
ScriptHash: priv0.GetScriptHash(),
Position: 0,
})
txMoveNeo.AddOutput(&transaction.Output{
AssetID: GoverningTokenID(),
Amount: neoRemainder,
ScriptHash: scriptHash,
Position: 1,
})
txMoveNeo.Data = new(transaction.ContractTX)
validators, err := getValidators(bc.config)
require.NoError(t, err)
rawScript, err := smartcontract.CreateMultiSigRedeemScript(len(bc.config.StandbyValidators)/2+1, validators)
require.NoError(t, err)
data := txMoveNeo.GetSignedPart()
var invoc []byte
for i := range privNetKeys {
priv, err := keys.NewPrivateKeyFromWIF(privNetKeys[i])
require.NoError(t, err)
invoc = append(invoc, getInvocationScript(data, priv)...)
}
txMoveNeo.Scripts = []transaction.Witness{{
InvocationScript: invoc,
VerificationScript: rawScript,
}}
b := bc.newBlock(newMinerTX(), txMoveNeo)
require.NoError(t, bc.AddBlock(b))
t.Logf("txMoveNeo: %s", txMoveNeo.Hash().StringLE())
// 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()))
// Generate some blocks to be able to claim GAS for them.
_, err = bc.genBlocks(numOfEmptyBlocks)
require.NoError(t, err)
acc0, err := wallet.NewAccountFromWIF(priv0.WIF())
require.NoError(t, err)
// Make a NEO roundtrip (send to myself) and claim GAS.
txNeoRound := transaction.NewContractTX()
txNeoRound.AddInput(&transaction.Input{
PrevHash: txMoveNeo.Hash(),
PrevIndex: 0,
})
txNeoRound.AddOutput(&transaction.Output{
AssetID: GoverningTokenID(),
Amount: neoAmount,
ScriptHash: priv0.GetScriptHash(),
Position: 0,
})
txNeoRound.Data = new(transaction.ContractTX)
require.NoError(t, acc0.SignTx(txNeoRound))
b = bc.newBlock(newMinerTX(), txNeoRound)
require.NoError(t, bc.AddBlock(b))
t.Logf("txNeoRound: %s", txNeoRound.Hash().StringLE())
txClaim := &transaction.Transaction{Type: transaction.ClaimType}
claim := new(transaction.ClaimTX)
claim.Claims = append(claim.Claims, transaction.Input{
PrevHash: txMoveNeo.Hash(),
PrevIndex: 0,
})
txClaim.Data = claim
neoGas, sysGas, err := bc.CalculateClaimable(neoAmount, 1, bc.BlockHeight())
require.NoError(t, err)
gasOwned := neoGas + sysGas
txClaim.AddOutput(&transaction.Output{
AssetID: UtilityTokenID(),
Amount: gasOwned,
ScriptHash: priv0.GetScriptHash(),
Position: 0,
})
require.NoError(t, acc0.SignTx(txClaim))
b = bc.newBlock(newMinerTX(), txClaim)
require.NoError(t, bc.AddBlock(b))
t.Logf("txClaim: %s", txClaim.Hash().StringLE())
// 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.AddInput(&transaction.Input{
PrevHash: txClaim.Hash(),
PrevIndex: 0,
})
txDeploy.AddOutput(&transaction.Output{
AssetID: UtilityTokenID(),
Amount: gasOwned - invFee,
ScriptHash: priv0.GetScriptHash(),
Position: 0,
})
gasOwned -= invFee
require.NoError(t, acc0.SignTx(txDeploy))
b = bc.newBlock(newMinerTX(), 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)
b = bc.newBlock(newMinerTX(), txInv)
require.NoError(t, bc.AddBlock(b))
t.Logf("txInv: %s", txInv.Hash().StringLE())
priv1, err := keys.NewPrivateKeyFromWIF(privNetKeys[1])
require.NoError(t, err)
txNeo0to1 := transaction.NewContractTX()
txNeo0to1.Data = new(transaction.ContractTX)
txNeo0to1.AddInput(&transaction.Input{
PrevHash: txNeoRound.Hash(),
PrevIndex: 0,
})
txNeo0to1.AddOutput(&transaction.Output{
AssetID: GoverningTokenID(),
Amount: util.Fixed8FromInt64(1000),
ScriptHash: priv1.GetScriptHash(),
})
txNeo0to1.AddOutput(&transaction.Output{
AssetID: GoverningTokenID(),
Amount: neoAmount - util.Fixed8FromInt64(1000),
ScriptHash: priv0.GetScriptHash(),
})
require.NoError(t, acc0.SignTx(txNeo0to1))
b = bc.newBlock(newMinerTX(), 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)
transferTx := newNEP5Transfer(sh, sh, priv0.GetScriptHash(), 1000)
b = bc.newBlock(newMinerTX(), initTx, transferTx)
require.NoError(t, bc.AddBlock(b))
transferTx = newNEP5Transfer(sh, priv0.GetScriptHash(), priv1.GetScriptHash(), 123)
b = bc.newBlock(newMinerTX(), transferTx)
require.NoError(t, bc.AddBlock(b))
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)
}
}
// Blocks for `submitblock` test. If you are planning to modify test chain from `testblocks.acc`,
// please, update params value of `empty block` and `positive` tests.
var blocks []*block.Block
blocks = append(blocks, bc.newBlock(), bc.newBlock(newMinerTX()))
for _, b := range blocks {
data, err := testserdes.EncodeBinary(b)
require.NoError(t, err)
t.Log(hex.EncodeToString(data))
}
}
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.THROWIFNOT)
script := w.Bytes()
return transaction.NewInvocationTX(script, 0)
}