440 lines
14 KiB
Go
440 lines
14 KiB
Go
package core
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import (
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"encoding/hex"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"testing"
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"time"
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"github.com/nspcc-dev/neo-go/pkg/config"
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"github.com/nspcc-dev/neo-go/pkg/core/block"
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"github.com/nspcc-dev/neo-go/pkg/core/storage"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
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"github.com/nspcc-dev/neo-go/pkg/internal/testchain"
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"github.com/nspcc-dev/neo-go/pkg/internal/testserdes"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm/emit"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/nspcc-dev/neo-go/pkg/wallet"
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"github.com/pkg/errors"
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"github.com/stretchr/testify/require"
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"go.uber.org/zap/zaptest"
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)
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// multisig address which possess all NEO
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var neoOwner = testchain.MultisigScriptHash()
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// newTestChain should be called before newBlock invocation to properly setup
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// global state.
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func newTestChain(t *testing.T) *Blockchain {
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unitTestNetCfg, err := config.Load("../../config", testchain.Network())
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require.NoError(t, err)
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chain, err := NewBlockchain(storage.NewMemoryStore(), unitTestNetCfg.ProtocolConfiguration, zaptest.NewLogger(t))
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require.NoError(t, err)
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go chain.Run()
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return chain
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}
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func (bc *Blockchain) newBlock(txs ...*transaction.Transaction) *block.Block {
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lastBlock := bc.topBlock.Load().(*block.Block)
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return newBlock(bc.config, lastBlock.Index+1, lastBlock.Hash(), txs...)
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}
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func newBlock(cfg config.ProtocolConfiguration, index uint32, prev util.Uint256, txs ...*transaction.Transaction) *block.Block {
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validators, _ := getValidators(cfg)
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vlen := len(validators)
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valScript, _ := smartcontract.CreateMultiSigRedeemScript(
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vlen-(vlen-1)/3,
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validators,
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)
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witness := transaction.Witness{
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VerificationScript: valScript,
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}
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b := &block.Block{
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Base: block.Base{
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Network: testchain.Network(),
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Version: 0,
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PrevHash: prev,
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Timestamp: uint64(time.Now().UTC().Unix())*1000 + uint64(index),
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Index: index,
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NextConsensus: witness.ScriptHash(),
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Script: witness,
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},
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ConsensusData: block.ConsensusData{
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PrimaryIndex: 0,
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Nonce: 1111,
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},
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Transactions: txs,
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}
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err := b.RebuildMerkleRoot()
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if err != nil {
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panic(err)
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}
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b.Script.InvocationScript = testchain.Sign(b.GetSignedPart())
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return b
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}
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func (bc *Blockchain) genBlocks(n int) ([]*block.Block, error) {
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blocks := make([]*block.Block, n)
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lastHash := bc.topBlock.Load().(*block.Block).Hash()
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lastIndex := bc.topBlock.Load().(*block.Block).Index
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for i := 0; i < n; i++ {
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blocks[i] = newBlock(bc.config, uint32(i)+lastIndex+1, lastHash)
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if err := bc.AddBlock(blocks[i]); err != nil {
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return blocks, err
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}
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lastHash = blocks[i].Hash()
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}
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return blocks, nil
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}
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func getDecodedBlock(t *testing.T, i int) *block.Block {
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data, err := getBlockData(i)
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require.NoError(t, err)
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b, err := hex.DecodeString(data["raw"].(string))
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require.NoError(t, err)
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block := block.New(testchain.Network())
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require.NoError(t, testserdes.DecodeBinary(b, block))
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return block
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}
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func getBlockData(i int) (map[string]interface{}, error) {
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b, err := ioutil.ReadFile(fmt.Sprintf("test_data/block_%d.json", i))
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if err != nil {
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return nil, err
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}
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var data map[string]interface{}
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if err := json.Unmarshal(b, &data); err != nil {
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return nil, err
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}
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return data, err
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}
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func newDumbBlock() *block.Block {
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return &block.Block{
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Base: block.Base{
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Network: testchain.Network(),
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Version: 0,
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PrevHash: hash.Sha256([]byte("a")),
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MerkleRoot: hash.Sha256([]byte("b")),
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Timestamp: 100500,
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Index: 1,
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NextConsensus: hash.Hash160([]byte("a")),
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Script: transaction.Witness{
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VerificationScript: []byte{0x51}, // PUSH1
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InvocationScript: []byte{0x61}, // NOP
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},
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},
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ConsensusData: block.ConsensusData{
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PrimaryIndex: 0,
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Nonce: 1111,
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},
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Transactions: []*transaction.Transaction{
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transaction.New(testchain.Network(), []byte{byte(opcode.PUSH1)}, 0),
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},
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}
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}
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// This function generates "../rpc/testdata/testblocks.acc" file which contains data
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// for RPC unit tests. It also is a nice integration test.
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// To generate new "../rpc/testdata/testblocks.acc", follow the steps:
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// 1. Set saveChain down below to true
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// 2. Run tests with `$ make test`
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func TestCreateBasicChain(t *testing.T) {
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const saveChain = false
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const prefix = "../rpc/server/testdata/"
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// To make enough GAS.
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const numOfEmptyBlocks = 200
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// Increase in case if you need more blocks
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const validUntilBlock = numOfEmptyBlocks + 1000
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// To be incremented after each created transaction to keep chain constant.
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var testNonce uint32 = 1
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// Use as nonce when new transaction is created to avoid random data in tests.
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getNextNonce := func() uint32 {
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testNonce++
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return testNonce
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}
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const neoAmount = 99999000
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bc := newTestChain(t)
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defer bc.Close()
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gasHash := bc.contracts.GAS.Hash
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neoHash := bc.contracts.NEO.Hash
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t.Logf("native GAS hash: %v", gasHash)
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t.Logf("native NEO hash: %v", neoHash)
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priv0 := testchain.PrivateKeyByID(0)
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priv0ScriptHash := priv0.GetScriptHash()
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require.Equal(t, util.Fixed8FromInt64(0), bc.GetUtilityTokenBalance(priv0ScriptHash))
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// Move some NEO to one simple account.
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txMoveNeo := newNEP5Transfer(neoHash, neoOwner, priv0ScriptHash, neoAmount)
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txMoveNeo.ValidUntilBlock = validUntilBlock
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txMoveNeo.Nonce = getNextNonce()
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txMoveNeo.Sender = neoOwner
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txMoveNeo.Cosigners = []transaction.Cosigner{{
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Account: neoOwner,
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Scopes: transaction.CalledByEntry,
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AllowedContracts: nil,
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AllowedGroups: nil,
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}}
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require.NoError(t, signTx(bc, txMoveNeo))
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// Move some GAS to one simple account.
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txMoveGas := newNEP5Transfer(gasHash, neoOwner, priv0ScriptHash, int64(util.Fixed8FromInt64(1000)))
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txMoveGas.ValidUntilBlock = validUntilBlock
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txMoveGas.Nonce = getNextNonce()
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txMoveGas.Sender = neoOwner
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txMoveGas.Cosigners = []transaction.Cosigner{{
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Account: neoOwner,
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Scopes: transaction.CalledByEntry,
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AllowedContracts: nil,
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AllowedGroups: nil,
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}}
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require.NoError(t, signTx(bc, txMoveGas))
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b := bc.newBlock(txMoveNeo, txMoveGas)
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require.NoError(t, bc.AddBlock(b))
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t.Logf("txMoveNeo: %s", txMoveNeo.Hash().StringLE())
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t.Logf("txMoveGas: %s", txMoveGas.Hash().StringLE())
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require.Equal(t, util.Fixed8FromInt64(1000), bc.GetUtilityTokenBalance(priv0ScriptHash))
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// info for getblockheader rpc tests
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t.Logf("header hash: %s", b.Hash().StringLE())
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buf := io.NewBufBinWriter()
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b.Header().EncodeBinary(buf.BinWriter)
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t.Logf("header: %s", hex.EncodeToString(buf.Bytes()))
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acc0, err := wallet.NewAccountFromWIF(priv0.WIF())
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require.NoError(t, err)
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// Push some contract into the chain.
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avm, err := ioutil.ReadFile(prefix + "test_contract.avm")
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require.NoError(t, err)
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t.Logf("contractHash: %s", hash.Hash160(avm).StringLE())
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script := io.NewBufBinWriter()
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m := manifest.NewManifest(hash.Hash160(avm))
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m.ABI.EntryPoint.Name = "Main"
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m.ABI.EntryPoint.Parameters = []manifest.Parameter{
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manifest.NewParameter("method", smartcontract.StringType),
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manifest.NewParameter("params", smartcontract.ArrayType),
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}
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m.ABI.EntryPoint.ReturnType = smartcontract.BoolType
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m.Features = smartcontract.HasStorage
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bs, err := m.MarshalJSON()
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require.NoError(t, err)
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emit.Bytes(script.BinWriter, bs)
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emit.Bytes(script.BinWriter, avm)
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emit.Syscall(script.BinWriter, "System.Contract.Create")
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txScript := script.Bytes()
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invFee := util.Fixed8FromFloat(100)
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txDeploy := transaction.New(testchain.Network(), txScript, invFee)
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txDeploy.Nonce = getNextNonce()
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txDeploy.ValidUntilBlock = validUntilBlock
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txDeploy.Sender = priv0ScriptHash
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require.NoError(t, addNetworkFee(bc, txDeploy, acc0))
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require.NoError(t, acc0.SignTx(txDeploy))
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b = bc.newBlock(txDeploy)
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require.NoError(t, bc.AddBlock(b))
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t.Logf("txDeploy: %s", txDeploy.Hash().StringLE())
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// Now invoke this contract.
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script = io.NewBufBinWriter()
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emit.AppCallWithOperationAndArgs(script.BinWriter, hash.Hash160(avm), "Put", "testkey", "testvalue")
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txInv := transaction.New(testchain.Network(), script.Bytes(), 0)
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txInv.Nonce = getNextNonce()
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txInv.ValidUntilBlock = validUntilBlock
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txInv.Sender = priv0ScriptHash
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require.NoError(t, addNetworkFee(bc, txInv, acc0))
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require.NoError(t, acc0.SignTx(txInv))
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b = bc.newBlock(txInv)
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require.NoError(t, bc.AddBlock(b))
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t.Logf("txInv: %s", txInv.Hash().StringLE())
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priv1 := testchain.PrivateKeyByID(1)
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txNeo0to1 := newNEP5Transfer(neoHash, priv0ScriptHash, priv1.GetScriptHash(), 1000)
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txNeo0to1.Nonce = getNextNonce()
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txNeo0to1.ValidUntilBlock = validUntilBlock
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txNeo0to1.Sender = priv0ScriptHash
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txNeo0to1.Cosigners = []transaction.Cosigner{
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{
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Account: priv0ScriptHash,
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Scopes: transaction.CalledByEntry,
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AllowedContracts: nil,
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AllowedGroups: nil,
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},
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}
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require.NoError(t, addNetworkFee(bc, txNeo0to1, acc0))
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require.NoError(t, acc0.SignTx(txNeo0to1))
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b = bc.newBlock(txNeo0to1)
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require.NoError(t, bc.AddBlock(b))
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sh := hash.Hash160(avm)
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w := io.NewBufBinWriter()
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emit.AppCallWithOperationAndArgs(w.BinWriter, sh, "init")
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initTx := transaction.New(testchain.Network(), w.Bytes(), 0)
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initTx.Nonce = getNextNonce()
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initTx.ValidUntilBlock = validUntilBlock
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initTx.Sender = priv0ScriptHash
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require.NoError(t, addNetworkFee(bc, initTx, acc0))
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require.NoError(t, acc0.SignTx(initTx))
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transferTx := newNEP5Transfer(sh, sh, priv0.GetScriptHash(), 1000)
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transferTx.Nonce = getNextNonce()
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transferTx.ValidUntilBlock = validUntilBlock
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transferTx.Sender = priv0ScriptHash
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transferTx.Cosigners = []transaction.Cosigner{
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{
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Account: priv0ScriptHash,
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Scopes: transaction.CalledByEntry,
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AllowedContracts: nil,
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AllowedGroups: nil,
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},
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}
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require.NoError(t, addNetworkFee(bc, transferTx, acc0))
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require.NoError(t, acc0.SignTx(transferTx))
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b = bc.newBlock(initTx, transferTx)
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require.NoError(t, bc.AddBlock(b))
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t.Logf("recieveRublesTx: %v", transferTx.Hash().StringLE())
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transferTx = newNEP5Transfer(sh, priv0.GetScriptHash(), priv1.GetScriptHash(), 123)
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transferTx.Nonce = getNextNonce()
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transferTx.ValidUntilBlock = validUntilBlock
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transferTx.Sender = priv0ScriptHash
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transferTx.Cosigners = []transaction.Cosigner{
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{
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Account: priv0ScriptHash,
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Scopes: transaction.CalledByEntry,
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AllowedContracts: nil,
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AllowedGroups: nil,
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},
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}
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require.NoError(t, addNetworkFee(bc, transferTx, acc0))
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require.NoError(t, acc0.SignTx(transferTx))
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b = bc.newBlock(transferTx)
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require.NoError(t, bc.AddBlock(b))
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t.Logf("sendRublesTx: %v", transferTx.Hash().StringLE())
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if saveChain {
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outStream, err := os.Create(prefix + "testblocks.acc")
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require.NoError(t, err)
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defer outStream.Close()
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writer := io.NewBinWriterFromIO(outStream)
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count := bc.BlockHeight() + 1
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writer.WriteU32LE(count - 1)
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for i := 1; i < int(count); i++ {
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bh := bc.GetHeaderHash(i)
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b, err := bc.GetBlock(bh)
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require.NoError(t, err)
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bytes, err := testserdes.EncodeBinary(b)
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require.NoError(t, err)
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writer.WriteU32LE(uint32(len(bytes)))
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writer.WriteBytes(bytes)
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require.NoError(t, writer.Err)
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}
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}
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// Prepare some transaction for future submission.
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txSendRaw := newNEP5Transfer(neoHash, priv0ScriptHash, priv1.GetScriptHash(), int64(util.Fixed8FromInt64(1000)))
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txSendRaw.ValidUntilBlock = validUntilBlock
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txSendRaw.Nonce = getNextNonce()
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txSendRaw.Sender = priv0ScriptHash
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txSendRaw.Cosigners = []transaction.Cosigner{{
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Account: priv0ScriptHash,
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Scopes: transaction.CalledByEntry,
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AllowedContracts: nil,
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AllowedGroups: nil,
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}}
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require.NoError(t, addNetworkFee(bc, txSendRaw, acc0))
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require.NoError(t, acc0.SignTx(txSendRaw))
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bw := io.NewBufBinWriter()
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txSendRaw.EncodeBinary(bw.BinWriter)
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t.Logf("sendrawtransaction: %s", hex.EncodeToString(bw.Bytes()))
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}
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func newNEP5Transfer(sc, from, to util.Uint160, amount int64) *transaction.Transaction {
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w := io.NewBufBinWriter()
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emit.AppCallWithOperationAndArgs(w.BinWriter, sc, "transfer", from, to, amount)
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emit.Opcode(w.BinWriter, opcode.ASSERT)
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script := w.Bytes()
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return transaction.New(testchain.Network(), script, 0)
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}
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func addSender(txs ...*transaction.Transaction) error {
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for _, tx := range txs {
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tx.Sender = neoOwner
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}
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return nil
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}
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func addCosigners(txs ...*transaction.Transaction) {
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for _, tx := range txs {
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tx.Cosigners = []transaction.Cosigner{{
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Account: neoOwner,
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Scopes: transaction.CalledByEntry,
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AllowedContracts: nil,
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AllowedGroups: nil,
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}}
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}
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}
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func signTx(bc *Blockchain, txs ...*transaction.Transaction) error {
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validators, err := getValidators(bc.config)
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if err != nil {
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return errors.Wrap(err, "fail to sign tx")
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}
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rawScript, err := smartcontract.CreateMultiSigRedeemScript(len(bc.config.StandbyValidators)/2+1, validators)
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if err != nil {
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return errors.Wrap(err, "fail to sign tx")
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}
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for _, tx := range txs {
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size := io.GetVarSize(tx)
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netFee, sizeDelta := CalculateNetworkFee(rawScript)
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tx.NetworkFee = tx.NetworkFee.Add(netFee)
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size += sizeDelta
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tx.NetworkFee = tx.NetworkFee.Add(util.Fixed8(int64(size) * int64(bc.FeePerByte())))
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data := tx.GetSignedPart()
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tx.Scripts = []transaction.Witness{{
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InvocationScript: testchain.Sign(data),
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VerificationScript: rawScript,
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}}
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}
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return nil
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}
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func addNetworkFee(bc *Blockchain, tx *transaction.Transaction, sender *wallet.Account) error {
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size := io.GetVarSize(tx)
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netFee, sizeDelta := CalculateNetworkFee(sender.Contract.Script)
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tx.NetworkFee += netFee
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size += sizeDelta
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for _, cosigner := range tx.Cosigners {
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contract := bc.GetContractState(cosigner.Account)
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if contract != nil {
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netFee, sizeDelta = CalculateNetworkFee(contract.Script)
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tx.NetworkFee += netFee
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size += sizeDelta
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}
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}
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tx.NetworkFee += util.Fixed8(int64(size) * int64(bc.FeePerByte()))
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return nil
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}
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