Handle values from the metadata files

Improvements and fixes to nonce allocation

Cargo.lock

@@ -3948,17 +3948,6 @@ dependencies = [
  "serde_stacker",
 ]
 
-[[package]]
-name = "revive-dt-common"
-version = "0.1.0"
-dependencies = [
- "anyhow",
- "futures",
- "once_cell",
- "tokio",
- "tracing",
-]
-
 [[package]]
 name = "revive-dt-compiler"
 version = "0.1.0"
@@ -3993,7 +3982,6 @@ dependencies = [
  "clap",
  "indexmap 2.10.0",
  "rayon",
- "revive-dt-common",
  "revive-dt-compiler",
  "revive-dt-config",
  "revive-dt-format",
@@ -4015,7 +4003,7 @@ dependencies = [
  "alloy-primitives",
  "alloy-sol-types",
  "anyhow",
- "revive-dt-common",
+ "revive-dt-node-interaction",
  "semver 1.0.26",
  "serde",
  "serde_json",
@@ -4028,9 +4016,7 @@ version = "0.1.0"
 dependencies = [
  "alloy",
  "anyhow",
- "revive-dt-common",
  "revive-dt-config",
- "revive-dt-format",
  "revive-dt-node-interaction",
  "serde",
  "serde_json",
@@ -4047,6 +4033,10 @@ version = "0.1.0"
 dependencies = [
  "alloy",
  "anyhow",
+ "futures",
+ "once_cell",
+ "tokio",
+ "tracing",
 ]
 
 [[package]]

Cargo.toml

@@ -11,7 +11,6 @@ repository = "https://github.com/paritytech/revive-differential-testing.git"
 rust-version = "1.85.0"
 
 [workspace.dependencies]
-revive-dt-common = { version = "0.1.0", path = "crates/common" }
 revive-dt-compiler = { version = "0.1.0", path = "crates/compiler" }
 revive-dt-config = { version = "0.1.0", path = "crates/config" }
 revive-dt-core = { version = "0.1.0", path = "crates/core" }

crates/common/Cargo.toml

@@ -1,16 +0,0 @@
-[package]
-name = "revive-dt-common"
-description = "A library containing common concepts that other crates in the workspace can rely on"
-version.workspace = true
-authors.workspace = true
-license.workspace = true
-edition.workspace = true
-repository.workspace = true
-rust-version.workspace = true
-
-[dependencies]
-anyhow = { workspace = true }
-futures = { workspace = true }
-tracing = { workspace = true }
-once_cell = { workspace = true }
-tokio = { workspace = true }

crates/common/src/concepts/mod.rs

@@ -1,3 +0,0 @@
-mod blocking_executor;
-
-pub use blocking_executor::*;

crates/common/src/iterators/mod.rs

@@ -1,3 +0,0 @@
-mod files_with_extension_iterator;
-
-pub use files_with_extension_iterator::*;

crates/common/src/lib.rs

@@ -1,6 +0,0 @@
-//! This crate provides common concepts, functionality, types, macros, and more that other crates in
-//! the workspace can benefit from.
-
-pub mod concepts;
-pub mod iterators;
-pub mod macros;

crates/common/src/macros/mod.rs

@@ -1,3 +0,0 @@
-mod define_wrapper_type;
-
-pub use define_wrapper_type::*;

crates/config/src/lib.rs

@@ -73,12 +73,6 @@ pub struct Arguments {
     )]
     pub account: String,
 
-    /// This argument controls which private keys the nodes should have access to and be added to
-    /// its wallet signers. With a value of N, private keys (0, N] will be added to the signer set
-    /// of the node.
-    #[arg(long = "private-keys-count", default_value_t = 30)]
-    pub private_keys_to_add: usize,
-
     /// The differential testing leader node implementation.
     #[arg(short, long = "leader", default_value = "geth")]
     pub leader: TestingPlatform,

crates/core/Cargo.toml

@@ -13,7 +13,6 @@ name = "retester"
 path = "src/main.rs"
 
 [dependencies]
-revive-dt-common = { workspace = true }
 revive-dt-compiler = { workspace = true }
 revive-dt-config = { workspace = true }
 revive-dt-format = { workspace = true }

crates/core/src/driver/mod.rs

@@ -1,11 +1,11 @@
 //! The test driver handles the compilation and execution of the test cases.
 
 use std::collections::HashMap;
-use std::fmt::Debug;
 use std::marker::PhantomData;
 
 use alloy::json_abi::JsonAbi;
 use alloy::network::{Ethereum, TransactionBuilder};
+use alloy::primitives::Bytes;
 use alloy::rpc::types::TransactionReceipt;
 use alloy::rpc::types::trace::geth::{
     CallFrame, GethDebugBuiltInTracerType, GethDebugTracerType, GethDebugTracingOptions, GethTrace,
@@ -20,9 +20,6 @@ use alloy::{
 };
 use anyhow::Context;
 use indexmap::IndexMap;
-use serde_json::Value;
-
-use revive_dt_common::iterators::FilesWithExtensionIterator;
 use revive_dt_compiler::{Compiler, SolidityCompiler};
 use revive_dt_config::Arguments;
 use revive_dt_format::case::CaseIdx;
@@ -33,8 +30,11 @@ use revive_dt_node::Node;
 use revive_dt_node_interaction::EthereumNode;
 use revive_dt_report::reporter::{CompilationTask, Report, Span};
 use revive_solc_json_interface::SolcStandardJsonOutput;
+use serde_json::Value;
+use std::fmt::Debug;
 
 use crate::Platform;
+use crate::common::*;
 
 pub struct State<'a, T: Platform> {
     /// The configuration that the framework was started with.
@@ -442,8 +442,9 @@ where
         // Additionally, what happens if the compiler filter doesn't match? Do we consider that the
         // transaction should succeed? Do we just ignore the expectation?
 
-        let deployed_contracts = self.deployed_contracts.entry(case_idx).or_default();
-        let chain_state_provider = node;
+        let error_span =
+            tracing::error_span!("Exception failed", ?tracing_result, ?execution_receipt,);
+        let _guard = error_span.enter();
 
         // Handling the receipt state assertion.
         let expected = !expectation.exception;
@@ -457,16 +458,17 @@ where
 
         // Handling the calldata assertion
         if let Some(ref expected_calldata) = expectation.return_data {
-            let expected = expected_calldata;
-            let actual = &tracing_result.output.as_ref().unwrap_or_default();
-            if !expected.is_equivalent(actual, deployed_contracts, chain_state_provider)? {
+            let expected = expected_calldata
+                .calldata(self.deployed_contracts.entry(case_idx).or_default(), node)
+                .map(Bytes::from)?;
+            let actual = tracing_result.output.clone().unwrap_or_default();
+            if !expected.starts_with(&actual) {
                 tracing::error!(
-                    ?execution_receipt,
-                    ?expected,
+                    %expected,
                     %actual,
                     "Calldata assertion failed"
                 );
-                anyhow::bail!("Calldata assertion failed - Expected {expected:?} but got {actual}",);
+                anyhow::bail!("Calldata assertion failed - Expected {expected} but got {actual}",);
             }
         }
 
@@ -503,24 +505,17 @@ where
                 }
 
                 // Handling the topics assertion.
-                for (expected, actual) in expected_event
+                for (expected_topic, actual_topic) in expected_event
                     .topics
                     .as_slice()
                     .iter()
                     .zip(actual_event.topics())
                 {
-                    let expected = Calldata::new_compound([expected]);
-                    if !expected.is_equivalent(
-                        &actual.0,
-                        deployed_contracts,
-                        chain_state_provider,
-                    )? {
-                        tracing::error!(
-                            ?execution_receipt,
-                            ?expected,
-                            ?actual,
-                            "Event topics assertion failed",
-                        );
+                    let expected = Calldata::Compound(vec![expected_topic.clone()])
+                        .calldata(self.deployed_contracts.entry(case_idx).or_default(), node)?;
+                    let actual = actual_topic.to_vec();
+                    if actual != expected {
+                        tracing::error!(?expected, ?actual, "Event topics assertion failed",);
                         anyhow::bail!(
                             "Event topics assertion failed - Expected {expected:?} but got {actual:?}",
                         );
@@ -528,15 +523,13 @@ where
                 }
 
                 // Handling the values assertion.
-                let expected = &expected_event.values;
+                let expected = &expected_event
+                    .values
+                    .calldata(self.deployed_contracts.entry(case_idx).or_default(), node)
+                    .map(Bytes::from)?;
                 let actual = &actual_event.data().data;
-                if !expected.is_equivalent(&actual.0, deployed_contracts, chain_state_provider)? {
-                    tracing::error!(
-                        ?execution_receipt,
-                        ?expected,
-                        ?actual,
-                        "Event value assertion failed",
-                    );
+                if !expected.starts_with(actual) {
+                    tracing::error!(?expected, ?actual, "Event value assertion failed",);
                     anyhow::bail!(
                         "Event value assertion failed - Expected {expected:?} but got {actual:?}",
                     );
@@ -718,7 +711,7 @@ where
                 );
                 let _guard = tracing_span.enter();
 
-                let case_idx = CaseIdx::new(case_idx);
+                let case_idx = CaseIdx::new_from(case_idx);
 
                 // For inputs if one of the inputs fail we move on to the next case (we do not move
                 // on to the next input as it doesn't make sense. It depends on the previous one).

crates/core/src/lib.rs

@@ -5,17 +5,17 @@
 
 use revive_dt_compiler::{SolidityCompiler, revive_resolc, solc};
 use revive_dt_config::TestingPlatform;
-use revive_dt_format::traits::ResolverApi;
 use revive_dt_node::{Node, geth, kitchensink::KitchensinkNode};
 use revive_dt_node_interaction::EthereumNode;
 
+pub mod common;
 pub mod driver;
 
 /// One platform can be tested differentially against another.
 ///
 /// For this we need a blockchain node implementation and a compiler.
 pub trait Platform {
-    type Blockchain: EthereumNode + Node + ResolverApi;
+    type Blockchain: EthereumNode + Node;
     type Compiler: SolidityCompiler;
 
     /// Returns the matching [TestingPlatform] of the [revive_dt_config::Arguments].

crates/core/src/main.rs

@@ -1,5 +1,13 @@
-use std::{collections::HashMap, sync::LazyLock};
+use std::{
+    collections::{HashMap, HashSet},
+    sync::LazyLock,
+};
 
+use alloy::{
+    network::TxSigner,
+    primitives::FixedBytes,
+    signers::{Signature, local::PrivateKeySigner},
+};
 use clap::Parser;
 use rayon::{ThreadPoolBuilder, prelude::*};
 
@@ -8,7 +16,11 @@ use revive_dt_core::{
     Geth, Kitchensink, Platform,
     driver::{Driver, State},
 };
-use revive_dt_format::{corpus::Corpus, metadata::MetadataFile};
+use revive_dt_format::{
+    corpus::Corpus,
+    input::default_caller,
+    metadata::{AddressReplacementMap, MetadataFile},
+};
 use revive_dt_node::pool::NodePool;
 use revive_dt_report::reporter::{Report, Span};
 use temp_dir::TempDir;
@@ -20,12 +32,48 @@ static TEMP_DIR: LazyLock<TempDir> = LazyLock::new(|| TempDir::new().unwrap());
 fn main() -> anyhow::Result<()> {
     let args = init_cli()?;
 
-    for (corpus, tests) in collect_corpora(&args)? {
+    let mut corpora = collect_corpora(&args)?;
+    let mut replacement_private_keys = HashSet::<FixedBytes<32>>::new();
+    for case in corpora
+        .values_mut()
+        .flat_map(|metadata| metadata.iter_mut())
+        .flat_map(|metadata| metadata.content.cases.iter_mut())
+    {
+        let mut replacement_map = AddressReplacementMap::new();
+        for address in case.inputs.iter().filter_map(|input| {
+            if input.caller != default_caller() {
+                Some(input.caller)
+            } else {
+                None
+            }
+        }) {
+            replacement_map.add(address);
+        }
+        case.handle_address_replacement(&mut replacement_map)?;
+        replacement_private_keys.extend(
+            replacement_map
+                .into_inner()
+                .into_values()
+                .map(|(sk, _)| sk)
+                .map(|sk| sk.to_bytes()),
+        );
+    }
+
+    for (corpus, tests) in corpora {
         let span = Span::new(corpus, args.clone())?;
 
         match &args.compile_only {
             Some(platform) => compile_corpus(&args, &tests, platform, span),
-            None => execute_corpus(&args, &tests, span)?,
+            None => execute_corpus(
+                &args,
+                &tests,
+                replacement_private_keys
+                    .clone()
+                    .into_iter()
+                    .map(|bytes| PrivateKeySigner::from_bytes(&bytes).expect("Can't fail"))
+                    .collect::<Vec<_>>(),
+                span,
+            )?,
         }
 
         Report::save()?;
@@ -83,15 +131,24 @@ fn collect_corpora(args: &Arguments) -> anyhow::Result<HashMap<Corpus, Vec<Metad
     Ok(corpora)
 }
 
-fn run_driver<L, F>(args: &Arguments, tests: &[MetadataFile], span: Span) -> anyhow::Result<()>
+fn run_driver<L, F>(
+    args: &Arguments,
+    tests: &[MetadataFile],
+    additional_signers: impl IntoIterator<Item: TxSigner<Signature> + Send + Sync + 'static>
+    + Clone
+    + Send
+    + Sync
+    + 'static,
+    span: Span,
+) -> anyhow::Result<()>
 where
     L: Platform,
     F: Platform,
     L::Blockchain: revive_dt_node::Node + Send + Sync + 'static,
     F::Blockchain: revive_dt_node::Node + Send + Sync + 'static,
 {
-    let leader_nodes = NodePool::<L::Blockchain>::new(args)?;
-    let follower_nodes = NodePool::<F::Blockchain>::new(args)?;
+    let leader_nodes = NodePool::<L::Blockchain>::new(args, additional_signers.clone())?;
+    let follower_nodes = NodePool::<F::Blockchain>::new(args, additional_signers)?;
 
     tests.par_iter().for_each(
         |MetadataFile {
@@ -141,13 +198,22 @@ where
     Ok(())
 }
 
-fn execute_corpus(args: &Arguments, tests: &[MetadataFile], span: Span) -> anyhow::Result<()> {
+fn execute_corpus(
+    args: &Arguments,
+    tests: &[MetadataFile],
+    additional_signers: impl IntoIterator<Item: TxSigner<Signature> + Send + Sync + 'static>
+    + Clone
+    + Send
+    + Sync
+    + 'static,
+    span: Span,
+) -> anyhow::Result<()> {
     match (&args.leader, &args.follower) {
         (TestingPlatform::Geth, TestingPlatform::Kitchensink) => {
-            run_driver::<Geth, Kitchensink>(args, tests, span)?
+            run_driver::<Geth, Kitchensink>(args, tests, additional_signers, span)?
         }
         (TestingPlatform::Geth, TestingPlatform::Geth) => {
-            run_driver::<Geth, Geth>(args, tests, span)?
+            run_driver::<Geth, Geth>(args, tests, additional_signers, span)?
         }
         _ => unimplemented!(),
     }

crates/format/Cargo.toml

@@ -9,7 +9,7 @@ repository.workspace = true
 rust-version.workspace = true
 
 [dependencies]
-revive-dt-common = { workspace = true }
+revive-dt-node-interaction = { workspace = true }
 
 alloy = { workspace = true }
 alloy-primitives = { workspace = true }

crates/format/src/case.rs

@@ -1,9 +1,9 @@
 use serde::Deserialize;
 
-use revive_dt_common::macros::define_wrapper_type;
-
 use crate::{
+    define_wrapper_type,
     input::{Expected, Input},
+    metadata::AddressReplacementMap,
     mode::Mode,
 };
 
@@ -41,10 +41,23 @@ impl Case {
                 }
             })
     }
+
+    pub fn handle_address_replacement(
+        &mut self,
+        old_to_new_mapping: &mut AddressReplacementMap,
+    ) -> anyhow::Result<()> {
+        for input in self.inputs.iter_mut() {
+            input.handle_address_replacement(old_to_new_mapping)?;
+        }
+        if let Some(ref mut expected) = self.expected {
+            expected.handle_address_replacement(old_to_new_mapping)?;
+        }
+        Ok(())
+    }
 }
 
 define_wrapper_type!(
     /// A wrapper type for the index of test cases found in metadata file.
     #[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
-    pub struct CaseIdx(usize);
+    CaseIdx(usize);
 );

crates/format/src/lib.rs

@@ -3,6 +3,6 @@
 pub mod case;
 pub mod corpus;
 pub mod input;
+pub mod macros;
 pub mod metadata;
 pub mod mode;
-pub mod traits;

crates/format/src/macros.rs

@@ -12,9 +12,11 @@
 /// pub struct CaseId(usize);
 /// ```
 ///
-/// And would also implement a number of methods on this type making it easier to use.
+/// And would also implement a number of methods on this type making it easier
+/// to use.
 ///
-/// These wrapper types become very useful as they make the code a lot easier to read.
+/// These wrapper types become very useful as they make the code a lot easier
+/// to read.
 ///
 /// Take the following as an example:
 ///
@@ -24,31 +26,33 @@
 /// }
 /// ```
 ///
-/// In the above code it's hard to understand what the various types refer to or what to expect them
-/// to contain.
+/// In the above code it's hard to understand what the various types refer to or
+/// what to expect them to contain.
 ///
-/// With these wrapper types we're able to create code that's self-documenting in that the types
-/// tell us what the code is referring to. The above code is transformed into
+/// With these wrapper types we're able to create code that's self-documenting
+/// in that the types tell us what the code is referring to. The above code is
+/// transformed into
 ///
 /// ```rust,ignore
 /// struct State {
 ///     contracts: HashMap<CaseId, HashMap<ContractName, ContractByteCode>>
 /// }
 /// ```
-///
-/// Note that we follow the same syntax for defining wrapper structs but we do not permit the use of
-/// generics.
 #[macro_export]
 macro_rules! define_wrapper_type {
     (
         $(#[$meta: meta])*
-        $vis:vis struct $ident: ident($ty: ty);
+        $ident: ident($ty: ty) $(;)?
     ) => {
         $(#[$meta])*
-        $vis struct $ident($ty);
+        pub struct $ident($ty);
 
         impl $ident {
-            pub fn new(value: impl Into<$ty>) -> Self {
+            pub fn new(value: $ty) -> Self {
+                Self(value)
+            }
+
+            pub fn new_from<T: Into<$ty>>(value: T) -> Self {
                 Self(value.into())
             }
 
@@ -100,7 +104,3 @@ macro_rules! define_wrapper_type {
         }
     };
 }
-
-/// Technically not needed but this allows for the macro to be found in the `macros` module of the
-/// crate in addition to being found in the root of the crate.
-pub use define_wrapper_type;

crates/format/src/metadata.rs

@@ -1,5 +1,5 @@
 use std::{
-    collections::BTreeMap,
+    collections::{BTreeMap, HashMap},
     fmt::Display,
     fs::{File, read_to_string},
     ops::Deref,
@@ -7,12 +7,15 @@ use std::{
     str::FromStr,
 };
 
+use alloy::signers::local::PrivateKeySigner;
+use alloy_primitives::Address;
+use revive_dt_node_interaction::EthereumNode;
 use serde::{Deserialize, Serialize};
 
-use revive_dt_common::macros::define_wrapper_type;
-
 use crate::{
     case::Case,
+    define_wrapper_type,
+    input::resolve_argument,
     mode::{Mode, SolcMode},
 };
 
@@ -193,10 +196,10 @@ impl Metadata {
                 metadata.file_path = Some(path.to_path_buf());
                 metadata.contracts = Some(
                     [(
-                        ContractInstance::new("test"),
+                        ContractInstance::new_from("test"),
                         ContractPathAndIdentifier {
                             contract_source_path: path.to_path_buf(),
-                            contract_ident: ContractIdent::new("Test"),
+                            contract_ident: ContractIdent::new_from("Test"),
                         },
                     )]
                     .into(),
@@ -212,28 +215,35 @@ impl Metadata {
             }
         }
     }
+
+    pub fn handle_address_replacement(
+        &mut self,
+        old_to_new_mapping: &mut AddressReplacementMap,
+    ) -> anyhow::Result<()> {
+        for case in self.cases.iter_mut() {
+            case.handle_address_replacement(old_to_new_mapping)?;
+        }
+        tracing::debug!(metadata = ?self, "Performed replacement on metadata");
+        Ok(())
+    }
 }
 
 define_wrapper_type!(
     /// Represents a contract instance found a metadata file.
     ///
     /// Typically, this is used as the key to the "contracts" field of metadata files.
-    #[derive(
-        Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize,
-    )]
+    #[derive(Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
     #[serde(transparent)]
-    pub struct ContractInstance(String);
+    ContractInstance(String);
 );
 
 define_wrapper_type!(
     /// Represents a contract identifier found a metadata file.
     ///
     /// A contract identifier is the name of the contract in the source code.
-    #[derive(
-        Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize,
-    )]
+    #[derive(Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
     #[serde(transparent)]
-    pub struct ContractIdent(String);
+    ContractIdent(String);
 );
 
 /// Represents an identifier used for contracts.
@@ -314,6 +324,129 @@ impl From<ContractPathAndIdentifier> for String {
     }
 }
 
+#[derive(Clone, Debug, Default)]
+pub struct AddressReplacementMap(HashMap<Address, (PrivateKeySigner, Address)>);
+
+impl AddressReplacementMap {
+    pub fn new() -> Self {
+        Self(Default::default())
+    }
+
+    pub fn into_inner(self) -> HashMap<Address, (PrivateKeySigner, Address)> {
+        self.0
+    }
+
+    pub fn contains_key(&self, address: &Address) -> bool {
+        self.0.contains_key(address)
+    }
+
+    pub fn add(&mut self, address: Address) -> Address {
+        self.0
+            .entry(address)
+            .or_insert_with(|| {
+                let private_key = Self::new_random_private_key_signer();
+                let account = private_key.address();
+                tracing::debug!(
+                    old_address = %address,
+                    new_address = %account,
+                    "Added a new address replacement"
+                );
+                (private_key, account)
+            })
+            .1
+    }
+
+    pub fn resolve(&self, value: &str) -> Option<Address> {
+        // We attempt to resolve the given string without any additional context of the deployed
+        // contracts or the node API as we do not need them. If the resolution fails then we know
+        // that this isn't an address and we skip it.
+        let Ok(resolved) = resolve_argument(value, &Default::default(), &UnimplementedEthereumNode)
+        else {
+            return None;
+        };
+        let resolved_bytes = resolved.to_be_bytes_trimmed_vec();
+        let Ok(address) = Address::try_from(resolved_bytes.as_slice()) else {
+            return None;
+        };
+        self.0.get(&address).map(|(_, address)| *address)
+    }
+
+    fn new_random_private_key_signer() -> PrivateKeySigner {
+        // TODO: Use a seedable RNG to allow for deterministic allocation of the private keys so
+        // that we get reproducible runs.
+        PrivateKeySigner::random()
+    }
+}
+
+impl AsRef<HashMap<Address, (PrivateKeySigner, Address)>> for AddressReplacementMap {
+    fn as_ref(&self) -> &HashMap<Address, (PrivateKeySigner, Address)> {
+        &self.0
+    }
+}
+
+struct UnimplementedEthereumNode;
+
+impl EthereumNode for UnimplementedEthereumNode {
+    fn execute_transaction(
+        &self,
+        _: alloy::rpc::types::TransactionRequest,
+    ) -> anyhow::Result<alloy::rpc::types::TransactionReceipt> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn chain_id(&self) -> anyhow::Result<alloy_primitives::ChainId> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn block_gas_limit(&self, _: alloy::eips::BlockNumberOrTag) -> anyhow::Result<u128> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn block_coinbase(&self, _: alloy::eips::BlockNumberOrTag) -> anyhow::Result<Address> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn block_difficulty(
+        &self,
+        _: alloy::eips::BlockNumberOrTag,
+    ) -> anyhow::Result<alloy_primitives::U256> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn block_hash(
+        &self,
+        _: alloy::eips::BlockNumberOrTag,
+    ) -> anyhow::Result<alloy_primitives::BlockHash> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn block_timestamp(
+        &self,
+        _: alloy::eips::BlockNumberOrTag,
+    ) -> anyhow::Result<alloy_primitives::BlockTimestamp> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn last_block_number(&self) -> anyhow::Result<alloy_primitives::BlockNumber> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn trace_transaction(
+        &self,
+        _: &alloy::rpc::types::TransactionReceipt,
+        _: alloy::rpc::types::trace::geth::GethDebugTracingOptions,
+    ) -> anyhow::Result<alloy::rpc::types::trace::geth::GethTrace> {
+        anyhow::bail!("Unimplemented")
+    }
+
+    fn state_diff(
+        &self,
+        _: &alloy::rpc::types::TransactionReceipt,
+    ) -> anyhow::Result<alloy::rpc::types::trace::geth::DiffMode> {
+        anyhow::bail!("Unimplemented")
+    }
+}
+
 #[cfg(test)]
 mod test {
     use super::*;

crates/format/src/traits.rs

@@ -1,30 +0,0 @@
-use alloy::eips::BlockNumberOrTag;
-use alloy::primitives::{Address, BlockHash, BlockNumber, BlockTimestamp, ChainId, U256};
-use anyhow::Result;
-
-/// A trait of the interface are required to implement to be used by the resolution logic that this
-/// crate implements to go from string calldata and into the bytes calldata.
-pub trait ResolverApi {
-    /// Returns the ID of the chain that the node is on.
-    fn chain_id(&self) -> Result<ChainId>;
-
-    // TODO: This is currently a u128 due to Kitchensink needing more than 64 bits for its gas limit
-    // when we implement the changes to the gas we need to adjust this to be a u64.
-    /// Returns the gas limit of the specified block.
-    fn block_gas_limit(&self, number: BlockNumberOrTag) -> Result<u128>;
-
-    /// Returns the coinbase of the specified block.
-    fn block_coinbase(&self, number: BlockNumberOrTag) -> Result<Address>;
-
-    /// Returns the difficulty of the specified block.
-    fn block_difficulty(&self, number: BlockNumberOrTag) -> Result<U256>;
-
-    /// Returns the hash of the specified block.
-    fn block_hash(&self, number: BlockNumberOrTag) -> Result<BlockHash>;
-
-    /// Returns the timestamp of the specified block,
-    fn block_timestamp(&self, number: BlockNumberOrTag) -> Result<BlockTimestamp>;
-
-    /// Returns the number of the last block.
-    fn last_block_number(&self) -> Result<BlockNumber>;
-}

crates/node-interaction/Cargo.toml

@@ -11,3 +11,7 @@ rust-version.workspace = true
 [dependencies]
 alloy = { workspace = true }
 anyhow = { workspace = true }
+futures = { workspace = true }
+tracing = { workspace = true }
+once_cell = { workspace = true }
+tokio = { workspace = true }

crates/node-interaction/src/blocking_executor.rs

@@ -23,7 +23,7 @@ use tracing::Instrument;
 /// executor to drive an async computation:
 ///
 /// ```rust
-/// use revive_dt_common::concepts::*;
+/// use revive_dt_node_interaction::*;
 ///
 /// fn blocking_function() {
 ///     let result = BlockingExecutor::execute(async move {
@@ -134,17 +134,22 @@ impl BlockingExecutor {
             }
         };
 
-        let result = match result {
-            Ok(result) => result,
+        match result.map(|result| {
+            *result
+                .downcast::<R>()
+                .expect("Type mismatch in the downcast")
+        }) {
+            Ok(result) => Ok(result),
             Err(error) => {
-                tracing::error!(?error, "An error occurred when running the async task");
-                anyhow::bail!("An error occurred when running the async task: {error:?}")
+                tracing::error!(
+                    ?error,
+                    "Failed to downcast the returned result into the expected type"
+                );
+                anyhow::bail!(
+                    "Failed to downcast the returned result into the expected type: {error:?}"
+                )
             }
-        };
-
-        Ok(*result
-            .downcast::<R>()
-            .expect("An error occurred when downcasting into R. This is a bug"))
+        }
     }
 }
 /// Represents the state of the async runtime. This runtime is designed to be a singleton runtime
@@ -203,9 +208,7 @@ mod test {
     fn panics_in_futures_are_caught() {
         // Act
         let result = BlockingExecutor::execute(async move {
-            panic!(
-                "If this panic causes, well, a panic, then this is an issue. If it's caught then all good!"
-            );
+            panic!("This is a panic!");
             0xFFu8
         });
 

crates/node-interaction/src/lib.rs

@@ -1,9 +1,14 @@
 //! This crate implements all node interactions.
 
+use alloy::eips::BlockNumberOrTag;
+use alloy::primitives::{Address, BlockHash, BlockNumber, BlockTimestamp, ChainId, U256};
 use alloy::rpc::types::trace::geth::{DiffMode, GethDebugTracingOptions, GethTrace};
 use alloy::rpc::types::{TransactionReceipt, TransactionRequest};
 use anyhow::Result;
 
+mod blocking_executor;
+pub use blocking_executor::*;
+
 /// An interface for all interactions with Ethereum compatible nodes.
 pub trait EthereumNode {
     /// Execute the [TransactionRequest] and return a [TransactionReceipt].
@@ -18,4 +23,27 @@ pub trait EthereumNode {
 
     /// Returns the state diff of the transaction hash in the [TransactionReceipt].
     fn state_diff(&self, receipt: &TransactionReceipt) -> Result<DiffMode>;
+
+    /// Returns the ID of the chain that the node is on.
+    fn chain_id(&self) -> Result<ChainId>;
+
+    // TODO: This is currently a u128 due to Kitchensink needing more than 64 bits for its gas limit
+    // when we implement the changes to the gas we need to adjust this to be a u64.
+    /// Returns the gas limit of the specified block.
+    fn block_gas_limit(&self, number: BlockNumberOrTag) -> Result<u128>;
+
+    /// Returns the coinbase of the specified block.
+    fn block_coinbase(&self, number: BlockNumberOrTag) -> Result<Address>;
+
+    /// Returns the difficulty of the specified block.
+    fn block_difficulty(&self, number: BlockNumberOrTag) -> Result<U256>;
+
+    /// Returns the hash of the specified block.
+    fn block_hash(&self, number: BlockNumberOrTag) -> Result<BlockHash>;
+
+    /// Returns the timestamp of the specified block,
+    fn block_timestamp(&self, number: BlockNumberOrTag) -> Result<BlockTimestamp>;
+
+    /// Returns the number of the last block.
+    fn last_block_number(&self) -> Result<BlockNumber>;
 }

crates/node/Cargo.toml

@@ -14,10 +14,8 @@ alloy = { workspace = true }
 tracing = { workspace = true }
 tokio = { workspace = true }
 
-revive-dt-common = { workspace = true }
-revive-dt-config = { workspace = true }
-revive-dt-format = { workspace = true }
 revive-dt-node-interaction = { workspace = true }
+revive-dt-config = { workspace = true }
 
 serde = { workspace = true }
 serde_json = { workspace = true }

crates/node/src/constants.rs

@@ -1,5 +0,0 @@
-/// This constant defines how much Wei accounts are pre-seeded with in genesis.
-///
-/// Note: After changing this number, check that the tests for kitchensink work as we encountered
-/// some issues with different values of the initial balance on Kitchensink.
-pub const INITIAL_BALANCE: u128 = 10u128.pow(37);

crates/node/src/geth.rs

@@ -12,8 +12,8 @@ use std::{
 use alloy::{
     eips::BlockNumberOrTag,
     genesis::{Genesis, GenesisAccount},
-    network::{Ethereum, EthereumWallet, NetworkWallet},
-    primitives::{Address, BlockHash, BlockNumber, BlockTimestamp, FixedBytes, U256},
+    network::{Ethereum, EthereumWallet, NetworkWallet, TxSigner},
+    primitives::{Address, BlockHash, BlockNumber, BlockTimestamp, U256},
     providers::{
         Provider, ProviderBuilder,
         ext::DebugApi,
@@ -23,15 +23,13 @@ use alloy::{
         TransactionReceipt, TransactionRequest,
         trace::geth::{DiffMode, GethDebugTracingOptions, PreStateConfig, PreStateFrame},
     },
-    signers::local::PrivateKeySigner,
+    signers::Signature,
 };
-use revive_dt_common::concepts::BlockingExecutor;
 use revive_dt_config::Arguments;
-use revive_dt_format::traits::ResolverApi;
-use revive_dt_node_interaction::EthereumNode;
+use revive_dt_node_interaction::{BlockingExecutor, EthereumNode};
 use tracing::Level;
 
-use crate::{Node, common::FallbackGasFiller, constants::INITIAL_BALANCE};
+use crate::{Node, common::FallbackGasFiller};
 
 static NODE_COUNT: AtomicU32 = AtomicU32::new(0);
 
@@ -76,8 +74,6 @@ impl Instance {
     const GETH_STDOUT_LOG_FILE_NAME: &str = "node_stdout.log";
     const GETH_STDERR_LOG_FILE_NAME: &str = "node_stderr.log";
 
-    const TRANSACTION_INDEXING_ERROR: &str = "transaction indexing is in progress";
-
     /// Create the node directory and call `geth init` to configure the genesis.
     #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
     fn init(&mut self, genesis: String) -> anyhow::Result<&mut Self> {
@@ -88,12 +84,10 @@ impl Instance {
         for signer_address in
             <EthereumWallet as NetworkWallet<Ethereum>>::signer_addresses(&self.wallet)
         {
-            // Note, the use of the entry API here means that we only modify the entries for any
-            // account that is not in the `alloc` field of the genesis state.
-            genesis
-                .alloc
-                .entry(signer_address)
-                .or_insert(GenesisAccount::default().with_balance(U256::from(INITIAL_BALANCE)));
+            genesis.alloc.entry(signer_address).or_insert(
+                GenesisAccount::default()
+                    .with_balance(10000000000000000000000u128.try_into().unwrap()),
+            );
         }
         let genesis_path = self.base_directory.join(Self::GENESIS_JSON_FILE);
         serde_json::to_writer(File::create(&genesis_path)?, &genesis)?;
@@ -271,45 +265,57 @@ impl EthereumNode for Instance {
             // it eventually works, but we only do that if the error we get back is the "transaction
             // indexing is in progress" error or if the receipt is None.
             //
-            // Getting the transaction indexed and taking a receipt can take a long time especially
-            // when a lot of transactions are being submitted to the node. Thus, while initially we
-            // only allowed for 60 seconds of waiting with a 1 second delay in polling, we need to
-            // allow for a larger wait time. Therefore, in here we allow for 5 minutes of waiting
-            // with exponential backoff each time we attempt to get the receipt and find that it's
-            // not available.
+            // At the moment we do not allow for the 60 seconds to be modified and we take it as
+            // being an implementation detail that's invisible to anything outside of this module.
+            //
+            // We allow a total of 60 retries for getting the receipt with one second between each
+            // retry and the next which means that we allow for a total of 60 seconds of waiting
+            // before we consider that we're unable to get the transaction receipt.
             let mut retries = 0;
-            let mut total_wait_duration = Duration::from_secs(0);
-            let max_allowed_wait_duration = Duration::from_secs(5 * 60);
             loop {
-                if total_wait_duration >= max_allowed_wait_duration {
-                    tracing::error!(
-                        ?total_wait_duration,
-                        ?max_allowed_wait_duration,
-                        retry_count = retries,
-                        "Failed to get receipt after polling for it"
-                    );
-                    anyhow::bail!(
-                        "Polled for receipt for {total_wait_duration:?} but failed to get it"
-                    );
-                }
-
                 match provider.get_transaction_receipt(*transaction_hash).await {
-                    Ok(Some(receipt)) => break Ok(receipt),
-                    Ok(None) => {}
+                    Ok(Some(receipt)) => {
+                        tracing::info!("Obtained the transaction receipt");
+                        break Ok(receipt);
+                    }
+                    Ok(None) => {
+                        if retries == 60 {
+                            tracing::error!(
+                                "Polled for transaction receipt for 60 seconds but failed to get it"
+                            );
+                            break Err(anyhow::anyhow!("Failed to get the transaction receipt"));
+                        } else {
+                            tracing::trace!(
+                                retries,
+                                "Sleeping for 1 second and trying to get the receipt again"
+                            );
+                            retries += 1;
+                            tokio::time::sleep(std::time::Duration::from_secs(1)).await;
+                            continue;
+                        }
+                    }
                     Err(error) => {
                         let error_string = error.to_string();
-                        if !error_string.contains(Self::TRANSACTION_INDEXING_ERROR) {
+                        if error_string.contains("transaction indexing is in progress") {
+                            if retries == 60 {
+                                tracing::error!(
+                                    "Polled for transaction receipt for 60 seconds but failed to get it"
+                                );
+                                break Err(error.into());
+                            } else {
+                                tracing::trace!(
+                                    retries,
+                                    "Sleeping for 1 second and trying to get the receipt again"
+                                );
+                                retries += 1;
+                                tokio::time::sleep(std::time::Duration::from_secs(1)).await;
+                                continue;
+                            }
+                        } else {
                             break Err(error.into());
                         }
                     }
-                };
-
-                let next_wait_duration = Duration::from_secs(2u64.pow(retries))
-                    .min(max_allowed_wait_duration - total_wait_duration);
-                total_wait_duration += next_wait_duration;
-                retries += 1;
-
-                tokio::time::sleep(next_wait_duration).await;
+                }
             }
         })?
     }
@@ -345,9 +351,7 @@ impl EthereumNode for Instance {
             _ => anyhow::bail!("expected a diff mode trace"),
         }
     }
-}
 
-impl ResolverApi for Instance {
     #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
     fn chain_id(&self) -> anyhow::Result<alloy::primitives::ChainId> {
         let provider = self.provider();
@@ -431,17 +435,16 @@ impl ResolverApi for Instance {
 }
 
 impl Node for Instance {
-    fn new(config: &Arguments) -> Self {
+    fn new(
+        config: &Arguments,
+        additional_signers: impl IntoIterator<Item: TxSigner<Signature> + Send + Sync + 'static>,
+    ) -> Self {
         let geth_directory = config.directory().join(Self::BASE_DIRECTORY);
         let id = NODE_COUNT.fetch_add(1, Ordering::SeqCst);
         let base_directory = geth_directory.join(id.to_string());
 
         let mut wallet = config.wallet();
-        for signer in (1..=config.private_keys_to_add)
-            .map(|id| U256::from(id))
-            .map(|id| id.to_be_bytes::<32>())
-            .map(|id| PrivateKeySigner::from_bytes(&FixedBytes(id)).unwrap())
-        {
+        for signer in additional_signers {
             wallet.register_signer(signer);
         }
 
@@ -529,6 +532,7 @@ impl Drop for Instance {
 mod tests {
     use revive_dt_config::Arguments;
 
+    use alloy::signers::local::PrivateKeySigner;
     use temp_dir::TempDir;
 
     use crate::{GENESIS_JSON, Node};
@@ -545,7 +549,7 @@ mod tests {
 
     fn new_node() -> (Instance, TempDir) {
         let (args, temp_dir) = test_config();
-        let mut node = Instance::new(&args);
+        let mut node = Instance::new(&args, Vec::<PrivateKeySigner>::with_capacity(0));
         node.init(GENESIS_JSON.to_owned())
             .expect("Failed to initialize the node")
             .spawn_process()
@@ -555,21 +559,23 @@ mod tests {
 
     #[test]
     fn init_works() {
-        Instance::new(&test_config().0)
+        Instance::new(&test_config().0, Vec::<PrivateKeySigner>::with_capacity(0))
             .init(GENESIS_JSON.to_string())
             .unwrap();
     }
 
     #[test]
     fn spawn_works() {
-        Instance::new(&test_config().0)
+        Instance::new(&test_config().0, Vec::<PrivateKeySigner>::with_capacity(0))
             .spawn(GENESIS_JSON.to_string())
             .unwrap();
     }
 
     #[test]
     fn version_works() {
-        let version = Instance::new(&test_config().0).version().unwrap();
+        let version = Instance::new(&test_config().0, Vec::<PrivateKeySigner>::with_capacity(0))
+            .version()
+            .unwrap();
         assert!(
             version.starts_with("geth version"),
             "expected version string, got: '{version}'"

crates/node/src/kitchensink.rs

@@ -13,11 +13,9 @@ use alloy::{
     genesis::{Genesis, GenesisAccount},
     network::{
         Ethereum, EthereumWallet, Network, NetworkWallet, TransactionBuilder,
-        TransactionBuilderError, UnbuiltTransactionError,
-    },
-    primitives::{
-        Address, B64, B256, BlockHash, BlockNumber, BlockTimestamp, Bloom, Bytes, FixedBytes, U256,
+        TransactionBuilderError, TxSigner, UnbuiltTransactionError,
     },
+    primitives::{Address, B64, B256, BlockHash, BlockNumber, BlockTimestamp, Bloom, Bytes, U256},
     providers::{
         Provider, ProviderBuilder,
         ext::DebugApi,
@@ -28,20 +26,18 @@ use alloy::{
         eth::{Block, Header, Transaction},
         trace::geth::{DiffMode, GethDebugTracingOptions, PreStateConfig, PreStateFrame},
     },
-    signers::local::PrivateKeySigner,
+    signers::Signature,
 };
-use revive_dt_format::traits::ResolverApi;
 use serde::{Deserialize, Serialize};
 use serde_json::{Value as JsonValue, json};
 use sp_core::crypto::Ss58Codec;
 use sp_runtime::AccountId32;
 use tracing::Level;
 
-use revive_dt_common::concepts::BlockingExecutor;
 use revive_dt_config::Arguments;
-use revive_dt_node_interaction::EthereumNode;
+use revive_dt_node_interaction::{BlockingExecutor, EthereumNode};
 
-use crate::{Node, common::FallbackGasFiller, constants::INITIAL_BALANCE};
+use crate::{Node, common::FallbackGasFiller};
 
 static NODE_COUNT: AtomicU32 = AtomicU32::new(0);
 
@@ -133,12 +129,10 @@ impl KitchensinkNode {
             for signer_address in
                 <EthereumWallet as NetworkWallet<Ethereum>>::signer_addresses(&self.wallet)
             {
-                // Note, the use of the entry API here means that we only modify the entries for any
-                // account that is not in the `alloc` field of the genesis state.
-                genesis
-                    .alloc
-                    .entry(signer_address)
-                    .or_insert(GenesisAccount::default().with_balance(U256::from(INITIAL_BALANCE)));
+                genesis.alloc.entry(signer_address).or_insert(
+                    GenesisAccount::default()
+                        .with_balance(10000000000000000000000u128.try_into().unwrap()),
+                );
             }
             self.extract_balance_from_genesis_file(&genesis)?
         };
@@ -426,9 +420,7 @@ impl EthereumNode for KitchensinkNode {
             _ => anyhow::bail!("expected a diff mode trace"),
         }
     }
-}
 
-impl ResolverApi for KitchensinkNode {
     #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
     fn chain_id(&self) -> anyhow::Result<alloy::primitives::ChainId> {
         let provider = self.provider();
@@ -512,18 +504,17 @@ impl ResolverApi for KitchensinkNode {
 }
 
 impl Node for KitchensinkNode {
-    fn new(config: &Arguments) -> Self {
+    fn new(
+        config: &Arguments,
+        additional_signers: impl IntoIterator<Item: TxSigner<Signature> + Send + Sync + 'static>,
+    ) -> Self {
         let kitchensink_directory = config.directory().join(Self::BASE_DIRECTORY);
         let id = NODE_COUNT.fetch_add(1, Ordering::SeqCst);
         let base_directory = kitchensink_directory.join(id.to_string());
         let logs_directory = base_directory.join(Self::LOGS_DIRECTORY);
 
         let mut wallet = config.wallet();
-        for signer in (1..=config.private_keys_to_add)
-            .map(|id| U256::from(id))
-            .map(|id| id.to_be_bytes::<32>())
-            .map(|id| PrivateKeySigner::from_bytes(&FixedBytes(id)).unwrap())
-        {
+        for signer in additional_signers {
             wallet.register_signer(signer);
         }
 
@@ -1039,7 +1030,7 @@ impl BlockHeader for KitchenSinkHeader {
 
 #[cfg(test)]
 mod tests {
-    use alloy::rpc::types::TransactionRequest;
+    use alloy::{rpc::types::TransactionRequest, signers::local::PrivateKeySigner};
     use revive_dt_config::Arguments;
     use std::path::PathBuf;
     use std::sync::{LazyLock, Mutex};
@@ -1082,7 +1073,7 @@ mod tests {
         let _guard = NODE_START_MUTEX.lock().unwrap();
 
         let (args, temp_dir) = test_config();
-        let mut node = KitchensinkNode::new(&args);
+        let mut node = KitchensinkNode::new(&args, Vec::<PrivateKeySigner>::with_capacity(0));
         node.init(GENESIS_JSON)
             .expect("Failed to initialize the node")
             .spawn_process()
@@ -1137,7 +1128,8 @@ mod tests {
         }
         "#;
 
-        let mut dummy_node = KitchensinkNode::new(&test_config().0);
+        let mut dummy_node =
+            KitchensinkNode::new(&test_config().0, Vec::<PrivateKeySigner>::with_capacity(0));
 
         // Call `init()`
         dummy_node.init(genesis_content).expect("init failed");
@@ -1181,7 +1173,8 @@ mod tests {
         }
         "#;
 
-        let node = KitchensinkNode::new(&test_config().0);
+        let node =
+            KitchensinkNode::new(&test_config().0, Vec::<PrivateKeySigner>::with_capacity(0));
 
         let result = node
             .extract_balance_from_genesis_file(&serde_json::from_str(genesis_json).unwrap())
@@ -1254,7 +1247,7 @@ mod tests {
     fn spawn_works() {
         let (config, _temp_dir) = test_config();
 
-        let mut node = KitchensinkNode::new(&config);
+        let mut node = KitchensinkNode::new(&config, Vec::<PrivateKeySigner>::with_capacity(0));
         node.spawn(GENESIS_JSON.to_string()).unwrap();
     }
 
@@ -1262,7 +1255,7 @@ mod tests {
     fn version_works() {
         let (config, _temp_dir) = test_config();
 
-        let node = KitchensinkNode::new(&config);
+        let node = KitchensinkNode::new(&config, Vec::<PrivateKeySigner>::with_capacity(0));
         let version = node.version().unwrap();
 
         assert!(
@@ -1275,7 +1268,7 @@ mod tests {
     fn eth_rpc_version_works() {
         let (config, _temp_dir) = test_config();
 
-        let node = KitchensinkNode::new(&config);
+        let node = KitchensinkNode::new(&config, Vec::<PrivateKeySigner>::with_capacity(0));
         let version = node.eth_rpc_version().unwrap();
 
         assert!(

crates/node/src/lib.rs

@@ -1,10 +1,10 @@
 //! This crate implements the testing nodes.
 
+use alloy::{network::TxSigner, signers::Signature};
 use revive_dt_config::Arguments;
 use revive_dt_node_interaction::EthereumNode;
 
 pub mod common;
-pub mod constants;
 pub mod geth;
 pub mod kitchensink;
 pub mod pool;
@@ -15,7 +15,10 @@ pub const GENESIS_JSON: &str = include_str!("../../../genesis.json");
 /// An abstract interface for testing nodes.
 pub trait Node: EthereumNode {
     /// Create a new uninitialized instance.
-    fn new(config: &Arguments) -> Self;
+    fn new(
+        config: &Arguments,
+        additional_signers: impl IntoIterator<Item: TxSigner<Signature> + Send + Sync + 'static>,
+    ) -> Self;
 
     /// Spawns a node configured according to the genesis json.
     ///

crates/node/src/pool.rs

@@ -6,6 +6,7 @@ use std::{
     thread,
 };
 
+use alloy::{network::TxSigner, signers::Signature};
 use anyhow::Context;
 use revive_dt_config::Arguments;
 
@@ -23,7 +24,14 @@ where
     T: Node + Send + 'static,
 {
     /// Create a new Pool. This will start as many nodes as there are workers in `config`.
-    pub fn new(config: &Arguments) -> anyhow::Result<Self> {
+    pub fn new(
+        config: &Arguments,
+        additional_signers: impl IntoIterator<Item: TxSigner<Signature> + Send + Sync + 'static>
+        + Clone
+        + Send
+        + Sync
+        + 'static,
+    ) -> anyhow::Result<Self> {
         let nodes = config.workers;
         let genesis = read_to_string(&config.genesis_file).context(format!(
             "can not read genesis file: {}",
@@ -34,7 +42,10 @@ where
         for _ in 0..nodes {
             let config = config.clone();
             let genesis = genesis.clone();
-            handles.push(thread::spawn(move || spawn_node::<T>(&config, genesis)));
+            let additional_signers = additional_signers.clone();
+            handles.push(thread::spawn(move || {
+                spawn_node::<T>(&config, additional_signers, genesis)
+            }));
         }
 
         let mut nodes = Vec::with_capacity(nodes);
@@ -60,8 +71,12 @@ where
     }
 }
 
-fn spawn_node<T: Node + Send>(args: &Arguments, genesis: String) -> anyhow::Result<T> {
-    let mut node = T::new(args);
+fn spawn_node<T: Node + Send>(
+    args: &Arguments,
+    additional_signers: impl IntoIterator<Item: TxSigner<Signature> + Send + Sync + 'static>,
+    genesis: String,
+) -> anyhow::Result<T> {
+    let mut node = T::new(args, additional_signers);
     tracing::info!("starting node: {}", node.connection_string());
     node.spawn(genesis)?;
     Ok(node)

genesis.json

@@ -33,5 +33,9 @@
     "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
     "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
     "timestamp": "0x00",
-    "alloc": {}
+    "alloc": {
+        "90F8bf6A479f320ead074411a4B0e7944Ea8c9C1": {
+            "balance": "10000000000000000000000"
+        }
+    }
 }