Invoke estimate gas limit if gas limit not already provided (#1582)

* Invoke estimate gas limit if gas limit not already provided

* Added sender address in txn. Needed for estimateGasLimit

* Fixed failing e2e tests

* Provide fix gas limit for exit transaction (pass child chain mintable e2e test)

* Fix failing E2E tests

* uint64 to big.int change

---------

Co-authored-by: Stefan Negovanović <stefan@ethernal.tech>
Co-authored-by: Igor Crevar <crewce@gmail.com>

command/bridge/exit/exit.go

@@ -218,6 +218,7 @@ func createExitTxn(sender ethgo.Address, proof types.Proof) (*ethgo.Transaction,
 		From:  sender,
 		To:    &exitHelperAddr,
 		Input: input,
+		Gas:   txrelayer.DefaultGasLimit,
 	}
 
 	return txn, exitEvent, err

e2e-polybft/e2e/bridge_test.go

@@ -674,7 +674,7 @@ func TestE2E_Bridge_ChildChainMintableTokensTransfer(t *testing.T) {
 	cluster := framework.NewTestCluster(t, 5,
 		framework.WithNumBlockConfirmations(0),
 		framework.WithEpochSize(epochSize),
-		framework.WithNativeTokenConfig(fmt.Sprintf("Mintable Edge Coin:MEC:18:true:%s", adminAddr)),
+		framework.WithNativeTokenConfig(fmt.Sprintf(nativeTokenMintableTestCfg, adminAddr)),
 		framework.WithBridgeAllowListAdmin(adminAddr),
 		framework.WithBridgeBlockListAdmin(adminAddr),
 		framework.WithPremine(append(depositors, adminAddr)...)) //nolint:makezero
@@ -1295,7 +1295,7 @@ func TestE2E_Bridge_Transfers_AccessLists(t *testing.T) {
 			contracts.ChildERC20PredicateContract,
 			contracts.NativeERC20TokenContract,
 			false)
-		require.ErrorContains(t, err, "failed to execute withdrawal")
+		require.ErrorContains(t, err, "failed to send withdraw transaction")
 
 		currentBlock, err := childEthEndpoint.GetBlockByNumber(ethgo.Latest, false)
 		require.NoError(t, err)

e2e-polybft/e2e/consensus_test.go

@@ -565,8 +565,8 @@ func TestE2E_Consensus_MintableERC20NativeToken(t *testing.T) {
 			To:    &nativeTokenAddr,
 			Input: mintInput,
 		}, nonMinterAcc.Ecdsa)
-	require.NoError(t, err)
-	require.Equal(t, uint64(types.ReceiptFailed), receipt.Status)
+	require.Error(t, err)
+	require.Nil(t, receipt)
 }
 
 func TestE2E_Consensus_CustomRewardToken(t *testing.T) {

e2e-polybft/framework/test-cluster.go

@@ -857,23 +857,23 @@ func (c *TestCluster) Call(t *testing.T, to types.Address, method *abi.Method,
 func (c *TestCluster) Deploy(t *testing.T, sender ethgo.Key, bytecode []byte) *TestTxn {
 	t.Helper()
 
-	return c.SendTxn(t, sender, &ethgo.Transaction{Input: bytecode})
+	return c.SendTxn(t, sender, &ethgo.Transaction{From: sender.Address(), Input: bytecode})
 }
 
 func (c *TestCluster) Transfer(t *testing.T, sender ethgo.Key, target types.Address, value *big.Int) *TestTxn {
 	t.Helper()
 
 	targetAddr := ethgo.Address(target)
 
-	return c.SendTxn(t, sender, &ethgo.Transaction{To: &targetAddr, Value: value})
+	return c.SendTxn(t, sender, &ethgo.Transaction{From: sender.Address(), To: &targetAddr, Value: value})
 }
 
 func (c *TestCluster) MethodTxn(t *testing.T, sender ethgo.Key, target types.Address, input []byte) *TestTxn {
 	t.Helper()
 
 	targetAddr := ethgo.Address(target)
 
-	return c.SendTxn(t, sender, &ethgo.Transaction{To: &targetAddr, Input: input})
+	return c.SendTxn(t, sender, &ethgo.Transaction{From: sender.Address(), To: &targetAddr, Input: input})
 }
 
 // SendTxn sends a transaction
@@ -906,7 +906,16 @@ func (c *TestCluster) SendTxn(t *testing.T, sender ethgo.Key, txn *ethgo.Transac
 	}
 
 	if txn.Gas == 0 {
-		txn.Gas = txrelayer.DefaultGasLimit
+		callMsg := txrelayer.ConvertTxnToCallMsg(txn)
+
+		gasLimit, err := client.Eth().EstimateGas(callMsg)
+		if err != nil {
+			// gas estimation can fail in case an account is not allow-listed
+			// (fallback it to default gas limit in that case)
+			txn.Gas = txrelayer.DefaultGasLimit
+		} else {
+			txn.Gas = gasLimit
+		}
 	}
 
 	chainID, err := client.Eth().ChainID()
@@ -922,13 +931,11 @@ func (c *TestCluster) SendTxn(t *testing.T, sender ethgo.Key, txn *ethgo.Transac
 	hash, err := client.Eth().SendRawTransaction(txnRaw)
 	require.NoError(t, err)
 
-	tTxn := &TestTxn{
+	return &TestTxn{
 		client: client.Eth(),
 		txn:    txn,
 		hash:   hash,
 	}
-
-	return tTxn
 }
 
 type TestTxn struct {

txrelayer/txrelayer.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math/big"
 	"sync"
 	"time"
 
@@ -98,6 +99,8 @@ func (t *TxRelayerImpl) sendTransactionLocked(txn *ethgo.Transaction, key ethgo.
 	t.lock.Lock()
 	defer t.lock.Unlock()
 
+	txn.From = key.Address()
+
 	nonce, err := t.client.Eth().GetNonce(key.Address(), ethgo.Pending)
 	if err != nil {
 		return ethgo.ZeroHash, err
@@ -117,7 +120,12 @@ func (t *TxRelayerImpl) sendTransactionLocked(txn *ethgo.Transaction, key ethgo.
 	}
 
 	if txn.Gas == 0 {
-		txn.Gas = DefaultGasLimit
+		gasLimit, err := t.client.Eth().EstimateGas(ConvertTxnToCallMsg(txn))
+		if err != nil {
+			return ethgo.ZeroHash, err
+		}
+
+		txn.Gas = gasLimit
 	}
 
 	chainID, err := t.client.Eth().ChainID()
@@ -157,7 +165,13 @@ func (t *TxRelayerImpl) SendTransactionLocal(txn *ethgo.Transaction) (*ethgo.Rec
 	}
 
 	txn.From = accounts[0]
-	txn.Gas = DefaultGasLimit
+
+	gasLimit, err := t.client.Eth().EstimateGas(ConvertTxnToCallMsg(txn))
+	if err != nil {
+		return nil, err
+	}
+
+	txn.Gas = gasLimit
 	txn.GasPrice = defaultGasPrice
 
 	txnHash, err := t.client.Eth().SendTransaction(txn)
@@ -192,6 +206,18 @@ func (t *TxRelayerImpl) waitForReceipt(hash ethgo.Hash) (*ethgo.Receipt, error)
 	}
 }
 
+// ConvertTxnToCallMsg converts txn instance to call message
+func ConvertTxnToCallMsg(txn *ethgo.Transaction) *ethgo.CallMsg {
+	return &ethgo.CallMsg{
+		From:     txn.From,
+		To:       txn.To,
+		Data:     txn.Input,
+		GasPrice: txn.GasPrice,
+		Value:    txn.Value,
+		Gas:      new(big.Int).SetUint64(txn.Gas),
+	}
+}
+
 type TxRelayerOption func(*TxRelayerImpl)
 
 func WithClient(client *jsonrpc.Client) TxRelayerOption {