fix(eth-sender): print better error message in case of missing blob prices

core/node/eth_sender/src/eth_fees_oracle.rs

@@ -35,13 +35,24 @@ pub(crate) struct GasAdjusterFeesOracle {
 }
 
 impl GasAdjusterFeesOracle {
+    fn assert_fee_is_not_zero(&self, value: u64, fee_type: &'static str) {
+        if value == 0 {
+            panic!(
+                "L1 RPC incorrectly reported {fee_type} prices, either it doesn't return them at \
+            all or returns 0's, eth-sender cannot continue without proper {fee_type} prices!"
+            );
+        }
+    }
     fn calculate_fees_with_blob_sidecar(
         &self,
         previous_sent_tx: &Option<TxHistory>,
     ) -> Result<EthFees, EthSenderError> {
         let base_fee_per_gas = self.gas_adjuster.get_blob_tx_base_fee();
+        self.assert_fee_is_not_zero(base_fee_per_gas, "base");
         let priority_fee_per_gas = self.gas_adjuster.get_blob_tx_priority_fee();
-        let blob_base_fee_per_gas = Some(self.gas_adjuster.get_blob_tx_blob_base_fee());
+        let blob_base_fee_per_gas = self.gas_adjuster.get_blob_tx_blob_base_fee();
+        self.assert_fee_is_not_zero(blob_base_fee_per_gas, "blob");
+        let blob_base_fee_per_gas = Some(blob_base_fee_per_gas);
 
         if let Some(previous_sent_tx) = previous_sent_tx {
             // for blob transactions on re-sending need to double all gas prices
@@ -72,6 +83,7 @@ impl GasAdjusterFeesOracle {
         time_in_mempool: u32,
     ) -> Result<EthFees, EthSenderError> {
         let mut base_fee_per_gas = self.gas_adjuster.get_base_fee(time_in_mempool);
+        self.assert_fee_is_not_zero(base_fee_per_gas, "base");
         if let Some(previous_sent_tx) = previous_sent_tx {
             self.verify_base_fee_not_too_low_on_resend(
                 previous_sent_tx.id,

core/node/eth_sender/src/tester.rs

@@ -153,16 +153,16 @@ impl EthSenderTester {
             .into_iter()
             .map(|base_fee_per_gas| BaseFees {
                 base_fee_per_gas,
-                base_fee_per_blob_gas: 0.into(),
+                base_fee_per_blob_gas: 1.into(),
                 l2_pubdata_price: 0.into(),
             })
             .collect();
 
         let gateway = MockSettlementLayer::builder()
             .with_fee_history(
                 std::iter::repeat_with(|| BaseFees {
-                    base_fee_per_gas: 0,
-                    base_fee_per_blob_gas: 0.into(),
+                    base_fee_per_gas: 1,
+                    base_fee_per_blob_gas: 1.into(),
                     l2_pubdata_price: 0.into(),
                 })
                 .take(Self::WAIT_CONFIRMATIONS as usize)
@@ -181,8 +181,8 @@ impl EthSenderTester {
         let l2_gateway: MockSettlementLayer = MockSettlementLayer::builder()
             .with_fee_history(
                 std::iter::repeat_with(|| BaseFees {
-                    base_fee_per_gas: 0,
-                    base_fee_per_blob_gas: 0.into(),
+                    base_fee_per_gas: 1,
+                    base_fee_per_blob_gas: 1.into(),
                     l2_pubdata_price: 0.into(),
                 })
                 .take(Self::WAIT_CONFIRMATIONS as usize)
@@ -201,8 +201,8 @@ impl EthSenderTester {
         let gateway_blobs = MockSettlementLayer::builder()
             .with_fee_history(
                 std::iter::repeat_with(|| BaseFees {
-                    base_fee_per_gas: 0,
-                    base_fee_per_blob_gas: 0.into(),
+                    base_fee_per_gas: 1,
+                    base_fee_per_blob_gas: 1.into(),
                     l2_pubdata_price: 0.into(),
                 })
                 .take(Self::WAIT_CONFIRMATIONS as usize)

core/node/fee_model/src/l1_gas_price/gas_adjuster/tests.rs

@@ -152,7 +152,7 @@ async fn kept_updated_l2(commitment_mode: L1BatchCommitmentMode) {
         .zip(TEST_PUBDATA_PRICES)
         .map(|(block, pubdata)| BaseFees {
             base_fee_per_gas: block,
-            base_fee_per_blob_gas: 0.into(),
+            base_fee_per_blob_gas: 1.into(),
             l2_pubdata_price: pubdata.into(),
         })
         .collect();