Use max gas price from config for TX sending when BaseFee is above maxGasPrice (#698)

* change maxFeePerGas to use config.maxGasPrice rather than current base fee

* updated test

* test constants fix

Author: vezenovm

connections/ethereum/connection.go

@@ -171,7 +171,7 @@ func (c *Connection) EstimateGasLondon(ctx context.Context, baseFee *big.Int) (*
 
 	if c.maxGasPrice.Cmp(baseFee) < 0 {
 		maxPriorityFeePerGas = big.NewInt(1)
-		maxFeePerGas = new(big.Int).Add(baseFee, maxPriorityFeePerGas)
+		maxFeePerGas = new(big.Int).Add(c.maxGasPrice, maxPriorityFeePerGas)
 		return maxPriorityFeePerGas, maxFeePerGas, nil
 	}
 

connections/ethereum/connection_test.go

@@ -100,7 +100,7 @@ func TestConnection_SafeEstimateGasMax(t *testing.T) {
 
 func TestConnection_EstimateGasLondon(t *testing.T) {
 	// Set TestEndpoint to Goerli endpoint when testing as the current Github CI doesn't use the London version of geth
-	// Goerli commonly has a base fee of 7 gwei with maxPriorityFeePerGas of 4.999999993 gwei
+	// Goerli commonly has a base fee of 7 wei with maxPriorityFeePerGas of 4.999999993 gwei
 	maxGasPrice := big.NewInt(100000000000)
 	conn := NewConnection(TestEndpoint, false, AliceKp, log15.Root(), GasLimit, maxGasPrice, GasMultipler, "", "")
 	err := conn.Connect()
@@ -129,7 +129,7 @@ func TestConnection_EstimateGasLondon(t *testing.T) {
 
 func TestConnection_EstimateGasLondonMax(t *testing.T) {
 	// Set TestEndpoint to Goerli endpoint when testing as the current Github CI doesn't use the London version of geth
-	// Goerli commonly has a base fee of 7 gwei with maxPriorityFeePerGas of 4.999999993 gwei
+	// Goerli commonly has a base fee of 7 wei with maxPriorityFeePerGas of 4.999999993 gwei
 	maxGasPrice := big.NewInt(100)
 	conn := NewConnection(TestEndpoint, false, AliceKp, log15.Root(), GasLimit, maxGasPrice, GasMultipler, "", "")
 	err := conn.Connect()
@@ -164,7 +164,7 @@ func TestConnection_EstimateGasLondonMax(t *testing.T) {
 
 func TestConnection_EstimateGasLondonMin(t *testing.T) {
 	// Set TestEndpoint to Goerli endpoint when testing as the current Github CI doesn't use the London version of geth
-	// Goerli commonly has a base fee of 7 gwei with maxPriorityFeePerGas of 4.999999993 gwei
+	// Goerli commonly has a base fee of 7 wei with maxPriorityFeePerGas of 4.999999993 gwei
 	maxGasPrice := big.NewInt(1)
 	conn := NewConnection(TestEndpoint, false, AliceKp, log15.Root(), GasLimit, maxGasPrice, GasMultipler, "", "")
 	err := conn.Connect()
@@ -186,7 +186,7 @@ func TestConnection_EstimateGasLondonMin(t *testing.T) {
 		}
 
 		maxPriorityFeePerGas := big.NewInt(1)
-		maxFeePerGas := new(big.Int).Add(head.BaseFee, maxPriorityFeePerGas)
+		maxFeePerGas := new(big.Int).Add(maxGasPrice, maxPriorityFeePerGas)
 
 		if suggestedGasTip.Cmp(maxPriorityFeePerGas) != 0 {
 			t.Fatalf("Gas tip cap should be equal to 1. Suggested: %s Max Tip: %s", suggestedGasTip.String(), maxPriorityFeePerGas)