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/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/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,
}
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,
}
_ = b.RebuildMerkleRoot()
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()
for i := 0; i < n; i++ {
blocks[i] = newBlock(bc.config, uint32(i)+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{}
r := io.NewBinReaderFromBuf(b)
block.DecodeBinary(r)
require.NoError(t, r.Err)
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.
// To generate new "../rpc/testdata/testblocks.acc", follow the steps:
// 1. Rename the function
// 2. Add specific test-case into "neo-go/pkg/core/blockchain_test.go"
// 3. Run tests with `$ make test`
func _(t *testing.T) {
const prefix = "../rpc/server/testdata/"
bc := newTestChain(t)
n := 50
_, err := bc.genBlocks(n)
require.NoError(t, err)
tx1 := newMinerTX()
avm, err := ioutil.ReadFile(prefix + "test_contract.avm")
require.NoError(t, err)
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()
tx2 := transaction.NewInvocationTX(txScript, util.Fixed8FromFloat(100))
block := bc.newBlock(tx1, tx2)
require.NoError(t, bc.AddBlock(block))
script = io.NewBufBinWriter()
emit.String(script.BinWriter, "testvalue")
emit.String(script.BinWriter, "testkey")
emit.Int(script.BinWriter, 2)
emit.Opcode(script.BinWriter, opcode.PACK)
emit.String(script.BinWriter, "Put")
emit.AppCall(script.BinWriter, hash.Hash160(avm), false)
tx3 := transaction.NewInvocationTX(script.Bytes(), util.Fixed8FromFloat(100))
tx4 := transaction.NewContractTX()
h, err := util.Uint256DecodeStringBE("6da730b566db183bfceb863b780cd92dee2b497e5a023c322c1eaca81cf9ad7a")
require.NoError(t, err)
tx4.AddInput(&transaction.Input{
PrevHash: h,
PrevIndex: 0,
})
// multisig address which possess all NEO
scriptHash, err := util.Uint160DecodeStringBE("be48d3a3f5d10013ab9ffee489706078714f1ea2")
require.NoError(t, err)
priv, err := keys.NewPrivateKeyFromWIF(privNetKeys[0])
require.NoError(t, err)
tx4.AddOutput(&transaction.Output{
AssetID: GoverningTokenID(),
Amount: util.Fixed8FromInt64(1000),
ScriptHash: priv.GetScriptHash(),
Position: 0,
})
tx4.AddOutput(&transaction.Output{
AssetID: GoverningTokenID(),
Amount: util.Fixed8FromInt64(99999000),
ScriptHash: scriptHash,
Position: 1,
})
tx4.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 := tx4.GetSignedPart()
var invoc []byte
for i := range privNetKeys {
priv, err := keys.NewPrivateKeyFromWIF(privNetKeys[i])
require.NoError(t, err)
invoc = append(invoc, getInvocationScript(data, priv)...)
}
tx4.Scripts = []transaction.Witness{{
InvocationScript: invoc,
VerificationScript: rawScript,
}}
b := bc.newBlock(newMinerTX(), tx3, tx4)
require.NoError(t, bc.AddBlock(b))
priv1, err := keys.NewPrivateKeyFromWIF(privNetKeys[1])
require.NoError(t, err)
tx5 := transaction.NewContractTX()
tx5.Data = new(transaction.ContractTX)
tx5.AddInput(&transaction.Input{
PrevHash: tx4.Hash(),
PrevIndex: 0,
})
tx5.AddOutput(&transaction.Output{
AssetID: GoverningTokenID(),
Amount: util.Fixed8FromInt64(1000),
ScriptHash: priv1.GetScriptHash(),
})
acc, err := wallet.NewAccountFromWIF(priv.WIF())
require.NoError(t, err)
require.NoError(t, acc.SignTx(tx5))
b = bc.newBlock(newMinerTX(), tx5)
require.NoError(t, bc.AddBlock(b))
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)
buf := io.NewBufBinWriter()
b.EncodeBinary(buf.BinWriter)
bytes := buf.Bytes()
writer.WriteU32LE(uint32(len(bytes)))
writer.WriteBytes(bytes)
require.NoError(t, writer.Err)
}
}