Add evm transfer noop (#16)

- transfer of 0 to sender's account (minimum action)

Author: stevenlanders

generator/scenarios/EVMTransferNoop.go

@@ -0,0 +1,67 @@
+package scenarios
+
+import (
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/common"
+	ethtypes "github.com/ethereum/go-ethereum/core/types"
+
+	"github.com/sei-protocol/sei-load/config"
+	types2 "github.com/sei-protocol/sei-load/types"
+)
+
+const EVMTransferNoop = "evmtransfernoop"
+
+// EVMTransferNoopScenario implements the TxGenerator interface for simple ETH transfers of 0 value
+type EVMTransferNoopScenario struct {
+	*ScenarioBase
+}
+
+// NewEVMTransferNoopScenario creates a new ETH transfer scenario
+func NewEVMTransferNoopScenario() TxGenerator {
+	scenario := &EVMTransferNoopScenario{}
+	scenario.ScenarioBase = NewScenarioBase(scenario)
+	return scenario
+}
+
+// Name returns the name of the scenario.
+func (s *EVMTransferNoopScenario) Name() string {
+	return EVMTransfer
+}
+
+// DeployScenario implements ScenarioDeployer interface - no deployment needed for ETH transfers
+func (s *EVMTransferNoopScenario) DeployScenario(config *config.LoadConfig, deployer *types2.Account) common.Address {
+	// No deployment needed for simple ETH transfers
+	// Return zero address to indicate no contract deployment
+	return common.Address{}
+}
+
+// AttachScenario implements ScenarioDeployer interface - no attachment needed for ETH transfers.
+func (s *EVMTransferNoopScenario) AttachScenario(config *config.LoadConfig, address common.Address) common.Address {
+	// No attachment needed for simple ETH transfers
+	// Return zero address to indicate no contract deployment
+	return common.Address{}
+}
+
+// CreateTransaction implements ScenarioDeployer interface - creates ETH transfer transaction
+func (s *EVMTransferNoopScenario) CreateTransaction(config *config.LoadConfig, scenario *types2.TxScenario) (*ethtypes.Transaction, error) {
+	// Create transaction with value transfer
+	tx := &ethtypes.DynamicFeeTx{
+		Nonce:     scenario.Nonce,
+		To:        &scenario.Sender.Address,
+		Value:     big.NewInt(0),
+		Gas:       21000,                   // Standard gas limit for ETH transfer
+		GasTipCap: big.NewInt(2000000000),  // 2 gwei
+		GasFeeCap: big.NewInt(20000000000), // 20 gwei
+		Data:      nil,                     // No data for simple transfer
+	}
+
+	// Sign the transaction
+	signer := ethtypes.NewCancunSigner(config.GetChainID())
+	signedTx, err := ethtypes.SignTx(ethtypes.NewTx(tx), signer, scenario.Sender.PrivKey)
+	if err != nil {
+		return nil, err
+	}
+
+	return signedTx, nil
+}

generator/scenarios/factory.go

@@ -8,7 +8,8 @@ type ScenarioFactory func() TxGenerator
 // scenarioFactories maps scenario names to their factory functions
 var scenarioFactories = map[string]ScenarioFactory{
 	// Manual entries for non-contract scenarios
-	EVMTransfer: NewEVMTransferScenario,
+	EVMTransfer:     NewEVMTransferScenario,
+	EVMTransferNoop: NewEVMTransferNoopScenario,
 
 	// Auto-generated entries will be added below this line by make generate
 	// DO NOT EDIT BELOW THIS LINE - AUTO-GENERATED CONTENT