test_helpers/chaingen/contract.go

@@ -0,0 +1,30 @@
+package chaingen
+
+import (
+	"strings"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/common"
+)
+
+type ContractSpec struct {
+	DeploymentCode []byte
+	ABI            abi.ABI
+}
+
+func ParseContract(abiStr, binStr string) (*ContractSpec, error) {
+	parsedABI, err := abi.JSON(strings.NewReader(abiStr))
+	if err != nil {
+		return nil, err
+	}
+	data := common.Hex2Bytes(binStr)
+	return &ContractSpec{data, parsedABI}, nil
+}
+
+func MustParseContract(abiStr, binStr string) *ContractSpec {
+	spec, err := ParseContract(abiStr, binStr)
+	if err != nil {
+		panic(err)
+	}
+	return spec
+}

test_helpers/chaingen/gen.go

@@ -0,0 +1,150 @@
+package chaingen
+
+import (
+	"crypto/ecdsa"
+	"errors"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/consensus/ethash"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/core/vm"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/params"
+)
+
+const secondsPerBlock = 12
+
+type GenContext struct {
+	ChainConfig *params.ChainConfig
+	GenFuncs    []func(int, *core.BlockGen)
+	DB          ethdb.Database
+
+	Keys      map[common.Address]*ecdsa.PrivateKey
+	Contracts map[string]*ContractSpec
+	Genesis   *types.Block
+
+	block    *core.BlockGen            // cache the current block for my methods' use
+	deployed map[common.Address]string // names of deployed contracts keyed by deployer
+	time     uint64                    // time at current block, in seconds
+}
+
+func NewGenContext(chainConfig *params.ChainConfig, db ethdb.Database) *GenContext {
+	return &GenContext{
+		ChainConfig: chainConfig,
+		DB:          db,
+		Keys:        make(map[common.Address]*ecdsa.PrivateKey),
+		Contracts:   make(map[string]*ContractSpec),
+
+		deployed: make(map[common.Address]string),
+	}
+}
+
+func (gen *GenContext) AddFunction(fn func(int, *core.BlockGen)) {
+	gen.GenFuncs = append(gen.GenFuncs, fn)
+}
+
+func (gen *GenContext) AddOwnedAccount(key *ecdsa.PrivateKey) common.Address {
+	addr := crypto.PubkeyToAddress(key.PublicKey)
+	gen.Keys[addr] = key
+	return addr
+}
+
+func (gen *GenContext) AddContract(name string, spec *ContractSpec) {
+	gen.Contracts[name] = spec
+}
+
+func (gen *GenContext) generate(i int, block *core.BlockGen) {
+	gen.block = block
+	for _, fn := range gen.GenFuncs {
+		fn(i, block)
+	}
+	gen.time += secondsPerBlock
+}
+
+// MakeChain creates a chain of n blocks starting at and including the genesis block.
+// the returned hash chain is ordered head->parent.
+func (gen *GenContext) MakeChain(n int) ([]*types.Block, []types.Receipts, *core.BlockChain) {
+	blocks, receipts := core.GenerateChain(
+		gen.ChainConfig, gen.Genesis, ethash.NewFaker(), gen.DB, n, gen.generate,
+	)
+	chain, err := core.NewBlockChain(gen.DB, nil, nil, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
+	if err != nil {
+		panic(err)
+	}
+	return append([]*types.Block{gen.Genesis}, blocks...), receipts, chain
+}
+
+func (gen *GenContext) CreateSendTx(from common.Address, to common.Address, amount *big.Int) (*types.Transaction, error) {
+	return gen.createTx(from, &to, amount, params.TxGas, nil)
+}
+
+func (gen *GenContext) CreateContractTx(from common.Address, contractName string) (*types.Transaction, error) {
+	contract := gen.Contracts[contractName]
+	if contract == nil {
+		return nil, errors.New("No contract with name " + contractName)
+	}
+	return gen.createTx(from, nil, big.NewInt(0), 1000000, contract.DeploymentCode)
+}
+
+func (gen *GenContext) CreateCallTx(from common.Address, to common.Address, methodName string, args ...interface{}) (*types.Transaction, error) {
+	contractName, ok := gen.deployed[to]
+	if !ok {
+		return nil, errors.New("No contract deployed at address " + to.String())
+	}
+	contract := gen.Contracts[contractName]
+	if contract == nil {
+		return nil, errors.New("No contract with name " + contractName)
+	}
+
+	packed, err := contract.ABI.Pack(methodName, args...)
+	if err != nil {
+		panic(err)
+	}
+	return gen.createTx(from, &to, big.NewInt(0), 100000, packed)
+}
+
+func (gen *GenContext) DeployContract(from common.Address, contractName string) (common.Address, error) {
+	tx, err := gen.CreateContractTx(from, contractName)
+	if err != nil {
+		return common.Address{}, err
+	}
+	addr := crypto.CreateAddress(from, gen.block.TxNonce(from))
+	gen.deployed[addr] = contractName
+	gen.block.AddTx(tx)
+	return addr, nil
+}
+
+func (gen *GenContext) createTx(from common.Address, to *common.Address, amount *big.Int, gasLimit uint64, data []byte) (*types.Transaction, error) {
+	signer := types.MakeSigner(gen.ChainConfig, gen.block.Number(), gen.time)
+	nonce := gen.block.TxNonce(from)
+	priv, ok := gen.Keys[from]
+	if !ok {
+		return nil, errors.New("No private key for sender address" + from.String())
+	}
+
+	var tx *types.Transaction
+	if gen.ChainConfig.IsLondon(gen.block.Number()) {
+		tx = types.NewTx(&types.DynamicFeeTx{
+			ChainID:   gen.ChainConfig.ChainID,
+			Nonce:     nonce,
+			To:        to,
+			Gas:       gasLimit,
+			GasTipCap: big.NewInt(50),
+			GasFeeCap: big.NewInt(1000000000),
+			Value:     amount,
+			Data:      data,
+		})
+	} else {
+		tx = types.NewTx(&types.LegacyTx{
+			Nonce: nonce,
+			To:    to,
+			Value: amount,
+			Gas:   gasLimit,
+			Data:  data,
+		})
+	}
+	return types.SignTx(tx, signer, priv)
+}

test_helpers/db.go

@@ -0,0 +1,33 @@
+package test_helpers
+
+import (
+	"fmt"
+
+	"github.com/jmoiron/sqlx"
+)
+
+// ClearDB is used to empty the IPLD-ETH tables after tests
+func ClearDB(db *sqlx.DB) error {
+	tx, err := db.Beginx()
+	if err != nil {
+		return err
+	}
+	statements := []string{
+		`TRUNCATE nodes`,
+		`TRUNCATE ipld.blocks`,
+		`TRUNCATE eth.header_cids`,
+		`TRUNCATE eth.uncle_cids`,
+		`TRUNCATE eth.transaction_cids`,
+		`TRUNCATE eth.receipt_cids`,
+		`TRUNCATE eth.state_cids`,
+		`TRUNCATE eth.storage_cids`,
+		`TRUNCATE eth.log_cids`,
+		`TRUNCATE eth_meta.watched_addresses`,
+	}
+	for _, stm := range statements {
+		if _, err = tx.Exec(stm); err != nil {
+			return fmt.Errorf("error executing `%s`: %w", stm, err)
+		}
+	}
+	return tx.Commit()
+}

test_helpers/indexing.go

@@ -0,0 +1,100 @@
+package test_helpers
+
+import (
+	"context"
+	"fmt"
+	"math/big"
+
+	"github.com/cerc-io/plugeth-statediff"
+	"github.com/cerc-io/plugeth-statediff/adapt"
+	"github.com/cerc-io/plugeth-statediff/indexer"
+	"github.com/cerc-io/plugeth-statediff/indexer/interfaces"
+	"github.com/cerc-io/plugeth-statediff/indexer/node"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/params"
+)
+
+type IndexChainParams struct {
+	Blocks     []*types.Block
+	Receipts   []types.Receipts
+	StateCache state.Database
+
+	StateDiffParams statediff.Params
+	TotalDifficulty *big.Int
+	// Whether to skip indexing state nodes (state_cids, storage_cids)
+	SkipStateNodes bool
+	// Whether to skip indexing IPLD blocks
+	SkipIPLDs bool
+}
+
+func NewIndexer(ctx context.Context, chainConfig *params.ChainConfig, genHash common.Hash, dbconfig interfaces.Config) (interfaces.StateDiffIndexer, error) {
+	testInfo := node.Info{
+		GenesisBlock: genHash.String(),
+		NetworkID:    "1",
+		ID:           "1",
+		ClientName:   "geth",
+		ChainID:      chainConfig.ChainID.Uint64(),
+	}
+	_, indexer, err := indexer.NewStateDiffIndexer(ctx, chainConfig, testInfo, dbconfig, true)
+	return indexer, err
+}
+
+func IndexChain(indexer interfaces.StateDiffIndexer, params IndexChainParams) error {
+	builder := statediff.NewBuilder(adapt.GethStateView(params.StateCache))
+	// iterate over the blocks, generating statediff payloads, and transforming the data into Postgres
+	for i, block := range params.Blocks {
+		var args statediff.Args
+		var rcts types.Receipts
+		if i == 0 {
+			args = statediff.Args{
+				OldStateRoot: common.Hash{},
+				NewStateRoot: block.Root(),
+				BlockNumber:  block.Number(),
+				BlockHash:    block.Hash(),
+			}
+		} else {
+			args = statediff.Args{
+				OldStateRoot: params.Blocks[i-1].Root(),
+				NewStateRoot: block.Root(),
+				BlockNumber:  block.Number(),
+				BlockHash:    block.Hash(),
+			}
+			rcts = params.Receipts[i-1]
+		}
+
+		diff, err := builder.BuildStateDiffObject(args, params.StateDiffParams)
+		if err != nil {
+			return fmt.Errorf("failed to build diff (block %d): %w", block.Number(), err)
+		}
+		tx, err := indexer.PushBlock(block, rcts, params.TotalDifficulty)
+		if err != nil {
+			return fmt.Errorf("failed to index block (block %d): %w", block.Number(), err)
+		}
+		defer tx.RollbackOnFailure(err)
+
+		if !params.SkipStateNodes {
+			for _, node := range diff.Nodes {
+				if err = indexer.PushStateNode(tx, node, block.Hash().String()); err != nil {
+					if err != nil {
+						return fmt.Errorf("failed to index state node: %w", err)
+					}
+				}
+			}
+		}
+		if !params.SkipIPLDs {
+			for _, ipld := range diff.IPLDs {
+				if err := indexer.PushIPLD(tx, ipld); err != nil {
+					if err != nil {
+						return fmt.Errorf("failed to index IPLD: %w", err)
+					}
+				}
+			}
+		}
+		if err = tx.Submit(); err != nil {
+			return fmt.Errorf("failed to commit diff: %w", err)
+		}
+	}
+	return nil
+}