chore: unify noop provider impls (#13345)

crates/chain-state/src/lib.rs

@@ -11,6 +11,8 @@
 mod in_memory;
 pub use in_memory::*;
 
+mod noop;
+
 mod chain_info;
 pub use chain_info::ChainInfoTracker;
 

crates/chain-state/src/noop.rs

@@ -0,0 +1,29 @@
+//! Noop impls for testing.
+
+use crate::{
+    CanonStateNotifications, CanonStateSubscriptions, ForkChoiceNotifications,
+    ForkChoiceSubscriptions,
+};
+use reth_primitives_traits::NodePrimitives;
+use reth_storage_api::noop::NoopProvider;
+use tokio::sync::{broadcast, watch};
+
+impl<C: Send + Sync, N: NodePrimitives> CanonStateSubscriptions for NoopProvider<C, N> {
+    fn subscribe_to_canonical_state(&self) -> CanonStateNotifications<N> {
+        broadcast::channel(1).1
+    }
+}
+
+impl<C: Send + Sync, N: NodePrimitives> ForkChoiceSubscriptions for NoopProvider<C, N> {
+    type Header = N::BlockHeader;
+
+    fn subscribe_safe_block(&self) -> ForkChoiceNotifications<N::BlockHeader> {
+        let (_, rx) = watch::channel(None);
+        ForkChoiceNotifications(rx)
+    }
+
+    fn subscribe_finalized_block(&self) -> ForkChoiceNotifications<N::BlockHeader> {
+        let (_, rx) = watch::channel(None);
+        ForkChoiceNotifications(rx)
+    }
+}

crates/rpc/rpc/src/eth/helpers/transaction.rs

@@ -55,6 +55,7 @@ where
 
 #[cfg(test)]
 mod tests {
+    use super::*;
     use alloy_eips::eip1559::ETHEREUM_BLOCK_GAS_LIMIT;
     use alloy_primitives::{hex_literal::hex, Bytes};
     use reth_chainspec::ChainSpecProvider;
@@ -71,8 +72,6 @@ mod tests {
     use reth_tasks::pool::BlockingTaskPool;
     use reth_transaction_pool::{test_utils::testing_pool, TransactionPool};
 
-    use super::*;
-
     #[tokio::test]
     async fn send_raw_transaction() {
         let noop_provider = NoopProvider::default();
@@ -81,10 +80,10 @@ mod tests {
         let pool = testing_pool();
 
         let evm_config = EthEvmConfig::new(noop_provider.chain_spec());
-        let cache = EthStateCache::spawn(noop_provider, Default::default());
+        let cache = EthStateCache::spawn(noop_provider.clone(), Default::default());
         let fee_history_cache = FeeHistoryCache::new(FeeHistoryCacheConfig::default());
         let eth_api = EthApi::new(
-            noop_provider,
+            noop_provider.clone(),
             pool.clone(),
             noop_network_provider,
             cache.clone(),