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" "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/trigger" "github.com/nspcc-dev/neo-go/pkg/util" "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" "github.com/nspcc-dev/neo-go/pkg/vm/stackitem" "github.com/nspcc-dev/neo-go/pkg/wallet" "github.com/stretchr/testify/require" "go.uber.org/zap/zaptest" ) // multisig address which possess all NEO 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 { unitTestNetCfg, err := config.Load("../../config", testchain.Network()) require.NoError(t, err) if f != nil { f(&unitTestNetCfg) } 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) 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{ 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{ 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())) } 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, 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.AppCallWithOperationAndArgs(script.BinWriter, cHash, "putValue", "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.AppCallWithOperationAndArgs(w.BinWriter, cHash, "init") 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, 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)) } func newNEP17Transfer(sc, from, to util.Uint160, amount int64, additionalArgs ...interface{}) *transaction.Transaction { w := io.NewBufBinWriter() emit.AppCallWithOperationAndArgs(w.BinWriter, sc, "transfer", from, to, amount, additionalArgs) emit.Opcodes(w.BinWriter, opcode.ASSERT) script := w.Bytes() return transaction.New(testchain.Network(), script, 10000000) } func newDeployTx(t *testing.T, sender util.Uint160, name, ctrName string) (*transaction.Transaction, util.Uint160) { c, err := ioutil.ReadFile(name) require.NoError(t, err) tx, h, err := testchain.NewDeployTx(ctrName, sender, bytes.NewReader(c)) require.NoError(t, err) t.Logf("contractHash (%s): %s", name, h.StringLE()) return tx, h } func addSigners(txs ...*transaction.Transaction) { for _, tx := range txs { tx.Signers = []transaction.Signer{{ Account: neoOwner, 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(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(contract.Script) tx.NetworkFee += netFee size += sizeDelta } } tx.NetworkFee += int64(size) * bc.FeePerByte() return nil } func invokeContractMethod(chain *Blockchain, sysfee int64, hash util.Uint160, method string, args ...interface{}) (*state.AppExecResult, error) { w := io.NewBufBinWriter() emit.AppCallWithOperationAndArgs(w.BinWriter, hash, method, args...) if w.Err != nil { return nil, w.Err } script := w.Bytes() tx := transaction.New(chain.GetConfig().Magic, script, sysfee) tx.ValidUntilBlock = chain.blockHeight + 1 addSigners(tx) err := testchain.SignTx(chain, tx) if err != nil { return nil, err } b := chain.newBlock(tx) err = chain.AddBlock(b) if err != nil { return nil, err } res, err := chain.GetAppExecResults(tx.Hash(), trigger.Application) if err != nil { return nil, err } return &res[0], nil } 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.AppCallWithOperationAndArgs(w.BinWriter, hash, method, args...) 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 } 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(transferTx) 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) { require.Equal(t, vm.HaltState, result.VMState, result.FaultException) 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()) }