Update the comment

Cargo.lock

@@ -346,7 +346,7 @@ dependencies = [
  "keccak-asm",
  "paste",
  "proptest",
- "rand 0.9.2",
+ "rand 0.9.1",
  "ruint",
  "rustc-hash",
  "serde",
@@ -3737,9 +3737,9 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.9.2"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6db2770f06117d490610c7488547d543617b21bfa07796d7a12f6f1bd53850d1"
+checksum = "9fbfd9d094a40bf3ae768db9361049ace4c0e04a4fd6b359518bd7b73a73dd97"
 dependencies = [
  "rand_chacha 0.9.0",
  "rand_core 0.9.3",
@@ -3948,22 +3948,10 @@ 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"
 dependencies = [
- "alloy-primitives",
  "anyhow",
  "revive-common",
  "revive-dt-config",
@@ -3994,7 +3982,6 @@ dependencies = [
  "clap",
  "indexmap 2.10.0",
  "rayon",
- "revive-dt-common",
  "revive-dt-compiler",
  "revive-dt-config",
  "revive-dt-format",
@@ -4016,7 +4003,7 @@ dependencies = [
  "alloy-primitives",
  "alloy-sol-types",
  "anyhow",
- "revive-dt-common",
+ "revive-dt-node-interaction",
  "semver 1.0.26",
  "serde",
  "serde_json",
@@ -4029,9 +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",
@@ -4048,6 +4033,10 @@ version = "0.1.0"
 dependencies = [
  "alloy",
  "anyhow",
+ "futures",
+ "once_cell",
+ "tokio",
+ "tracing",
 ]
 
 [[package]]
@@ -4142,7 +4131,7 @@ dependencies = [
  "primitive-types 0.12.2",
  "proptest",
  "rand 0.8.5",
- "rand 0.9.2",
+ "rand 0.9.1",
  "rlp",
  "ruint-macro",
  "serde",

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/compiler/Cargo.toml

@@ -9,13 +9,11 @@ repository.workspace = true
 rust-version.workspace = true
 
 [dependencies]
+anyhow = { workspace = true }
 revive-solc-json-interface = { workspace = true }
 revive-dt-config = { workspace = true }
 revive-dt-solc-binaries = { workspace = true }
 revive-common = { workspace = true }
-
-alloy-primitives = { workspace = true }
-anyhow = { workspace = true }
 semver = { workspace = true }
 serde_json = { workspace = true }
 tracing = { workspace = true }

crates/compiler/src/lib.rs

@@ -9,7 +9,6 @@ use std::{
     path::{Path, PathBuf},
 };
 
-use alloy_primitives::Address;
 use revive_dt_config::Arguments;
 
 use revive_common::EVMVersion;
@@ -159,26 +158,6 @@ where
         self
     }
 
-    pub fn with_library(
-        mut self,
-        scope: impl AsRef<Path>,
-        library_ident: impl AsRef<str>,
-        library_address: Address,
-    ) -> Self {
-        self.input
-            .settings
-            .libraries
-            .get_or_insert_with(Default::default)
-            .entry(scope.as_ref().display().to_string())
-            .or_default()
-            .insert(
-                library_ident.as_ref().to_owned(),
-                library_address.to_string(),
-            );
-
-        self
-    }
-
     pub fn try_build(self, solc_path: PathBuf) -> anyhow::Result<CompilerOutput<T::Options>> {
         T::new(solc_path).build(CompilerInput {
             extra_options: self.extra_options,

crates/compiler/src/revive_resolc.rs

@@ -10,10 +10,6 @@ use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
 use revive_dt_config::Arguments;
 use revive_solc_json_interface::SolcStandardJsonOutput;
 
-// TODO: I believe that we need to also pass the solc compiler to resolc so that resolc uses the
-// specified solc compiler. I believe that currently we completely ignore the specified solc binary
-// when invoking resolc which doesn't seem right if we're using solc as a compiler frontend.
-
 /// A wrapper around the `resolc` binary, emitting PVM-compatible bytecode.
 #[derive(Debug)]
 pub struct Resolc {

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,
@@ -129,16 +123,18 @@ impl Arguments {
         panic!("should have a workdir configured")
     }
 
-    /// Try to parse `self.account` into a [PrivateKeySigner],
+    pub fn signer(&self) -> PrivateKeySigner {
-    /// panicing on error.
+        self.account
-    pub fn wallet(&self) -> EthereumWallet {
-        let signer = self
-            .account
             .parse::<PrivateKeySigner>()
             .unwrap_or_else(|error| {
                 panic!("private key '{}' parsing error: {error}", self.account);
-            });
+            })
-        EthereumWallet::new(signer)
+    }
+
+    /// Try to parse `self.account` into a [PrivateKeySigner],
+    /// panicing on error.
+    pub fn wallet(&self) -> EthereumWallet {
+        EthereumWallet::new(self.signer())
     }
 }
 

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

@@ -1,15 +1,14 @@
 //! 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,
+    DefaultFrame, GethDebugTracingOptions, GethDefaultTracingOptions, GethTrace, PreStateConfig,
-    PreStateConfig,
 };
 use alloy::{
     primitives::Address,
@@ -20,21 +19,20 @@ 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;
-use revive_dt_format::input::{Calldata, EtherValue, Expected, ExpectedOutput, Method};
+use revive_dt_format::input::{Calldata, Expected, ExpectedOutput, Method};
-use revive_dt_format::metadata::{ContractInstance, ContractPathAndIdent};
+use revive_dt_format::metadata::{ContractInstance, ContractPathAndIdentifier};
 use revive_dt_format::{input::Input, metadata::Metadata, mode::SolcMode};
-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.
@@ -57,12 +55,6 @@ pub struct State<'a, T: Platform> {
     /// files.
     deployed_contracts: HashMap<CaseIdx, HashMap<ContractInstance, (Address, JsonAbi)>>,
 
-    /// This is a map of the deployed libraries.
-    ///
-    /// This map is not per case, but rather, per metadata file. This means that we do not redeploy
-    /// the libraries with each case.
-    deployed_libraries: HashMap<ContractInstance, (Address, JsonAbi)>,
-
     phantom: PhantomData<T>,
 }
 
@@ -76,7 +68,6 @@ where
             span,
             contracts: Default::default(),
             deployed_contracts: Default::default(),
-            deployed_libraries: Default::default(),
             phantom: Default::default(),
         }
     }
@@ -103,28 +94,10 @@ where
         let compiler = Compiler::<T::Compiler>::new()
             .allow_path(metadata.directory()?)
             .solc_optimizer(mode.solc_optimize());
-        let mut compiler = FilesWithExtensionIterator::new(metadata.directory()?)
+
+        let compiler = FilesWithExtensionIterator::new(metadata.directory()?)
             .with_allowed_extension("sol")
             .try_fold(compiler, |compiler, path| compiler.with_source(&path))?;
-        for (library_instance, (library_address, _)) in self.deployed_libraries.iter() {
-            let library_ident = &metadata
-                .contracts
-                .as_ref()
-                .and_then(|contracts| contracts.get(library_instance))
-                .expect("Impossible for library to not be found in contracts")
-                .contract_ident;
-
-            // Note the following: we need to tell solc which files require the libraries to be
-            // linked into them. We do not have access to this information and therefore we choose
-            // an easier, yet more compute intensive route, of telling solc that all of the files
-            // need to link the library and it will only perform the linking for the files that do
-            // actually need the library.
-            compiler = FilesWithExtensionIterator::new(metadata.directory()?)
-                .with_allowed_extension("sol")
-                .fold(compiler, |compiler, path| {
-                    compiler.with_library(&path, library_ident.as_str(), *library_address)
-                });
-        }
 
         let mut task = CompilationTask {
             json_input: compiler.input(),
@@ -166,47 +139,18 @@ where
         }
     }
 
-    pub fn build_and_publish_libraries(
-        &mut self,
-        metadata: &Metadata,
-        mode: &SolcMode,
-        node: &T::Blockchain,
-    ) -> anyhow::Result<()> {
-        self.build_contracts(mode, metadata)?;
-
-        for library_instance in metadata
-            .libraries
-            .iter()
-            .flatten()
-            .flat_map(|(_, map)| map.values())
-        {
-            self.get_or_deploy_contract_instance(
-                library_instance,
-                metadata,
-                None,
-                Input::default_caller(),
-                None,
-                None,
-                node,
-            )?;
-        }
-
-        Ok(())
-    }
-
     pub fn handle_input(
         &mut self,
         metadata: &Metadata,
         case_idx: CaseIdx,
         input: &Input,
         node: &T::Blockchain,
-        mode: &SolcMode,
     ) -> anyhow::Result<(TransactionReceipt, GethTrace, DiffMode)> {
         let deployment_receipts =
             self.handle_contract_deployment(metadata, case_idx, input, node)?;
         let execution_receipt =
             self.handle_input_execution(case_idx, input, deployment_receipts, node)?;
-        self.handle_input_expectations(case_idx, input, &execution_receipt, node, mode)?;
+        self.handle_input_expectations(case_idx, input, &execution_receipt, node)?;
         self.handle_input_diff(case_idx, execution_receipt, node)
     }
 
@@ -227,7 +171,12 @@ where
 
         let mut instances_we_must_deploy = IndexMap::<ContractInstance, bool>::new();
         for instance in input.find_all_contract_instances().into_iter() {
-            if !self.deployed_contracts(case_idx).contains_key(&instance) {
+            if !self
+                .deployed_contracts
+                .entry(case_idx)
+                .or_default()
+                .contains_key(&instance)
+            {
                 instances_we_must_deploy.entry(instance).or_insert(false);
             }
         }
@@ -243,22 +192,118 @@ where
 
         let mut receipts = HashMap::new();
         for (instance, deploy_with_constructor_arguments) in instances_we_must_deploy.into_iter() {
-            let calldata = deploy_with_constructor_arguments.then_some(&input.calldata);
+            // What we have at this moment is just a contract instance which is kind of like a variable
-            let value = deploy_with_constructor_arguments
+            // name for an actual underlying contract. So, we need to resolve this instance to the info
-                .then_some(input.value)
+            // of the contract that it belongs to.
-                .flatten();
+            let Some(ContractPathAndIdentifier {
+                contract_source_path,
+                contract_ident,
+            }) = metadata.contract_sources()?.remove(&instance)
+            else {
+                tracing::error!("Contract source not found for instance");
+                anyhow::bail!("Contract source not found for instance {:?}", instance)
+            };
 
-            if let (_, _, Some(receipt)) = self.get_or_deploy_contract_instance(
+            let compiled_contract = self.contracts.iter().find_map(|output| {
-                &instance,
+                output
-                metadata,
+                    .contracts
-                case_idx,
+                    .as_ref()?
-                input.caller,
+                    .get(&contract_source_path.display().to_string())
-                calldata,
+                    .and_then(|source_file_contracts| {
-                value,
+                        source_file_contracts.get(contract_ident.as_ref())
-                node,
+                    })
-            )? {
+            });
-                receipts.insert(instance.clone(), receipt);
+            let Some(code) = compiled_contract
+                .and_then(|contract| contract.evm.as_ref().and_then(|evm| evm.bytecode.as_ref()))
+            else {
+                tracing::error!(
+                    contract_source_path = contract_source_path.display().to_string(),
+                    contract_ident = contract_ident.as_ref(),
+                    "Failed to find bytecode for contract"
+                );
+                anyhow::bail!("Failed to find bytecode for contract {:?}", instance)
+            };
+
+            // TODO: When we want to do linking it would be best to do it at this stage here. We have
+            // the context from the metadata files and therefore know what needs to be linked and in
+            // what order it needs to happen.
+
+            let mut code = match alloy::hex::decode(&code.object) {
+                Ok(code) => code,
+                Err(error) => {
+                    tracing::error!(
+                        ?error,
+                        contract_source_path = contract_source_path.display().to_string(),
+                        contract_ident = contract_ident.as_ref(),
+                        "Failed to hex-decode byte code - This could possibly mean that the bytecode requires linking"
+                    );
+                    anyhow::bail!("Failed to hex-decode the byte code {}", error)
+                }
+            };
+
+            if deploy_with_constructor_arguments {
+                let encoded_input = input
+                    .encoded_input(self.deployed_contracts.entry(case_idx).or_default(), node)?;
+                code.extend(encoded_input.to_vec());
             }
+
+            let tx = {
+                let tx = TransactionRequest::default().from(input.caller);
+                TransactionBuilder::<Ethereum>::with_deploy_code(tx, code)
+            };
+
+            let receipt = match node.execute_transaction(tx) {
+                Ok(receipt) => receipt,
+                Err(error) => {
+                    tracing::error!(
+                        node = std::any::type_name::<T>(),
+                        ?error,
+                        "Contract deployment transaction failed."
+                    );
+                    return Err(error);
+                }
+            };
+
+            let Some(address) = receipt.contract_address else {
+                tracing::error!("Contract deployment transaction didn't return an address");
+                anyhow::bail!("Contract deployment didn't return an address");
+            };
+            tracing::info!(
+                instance_name = ?instance,
+                instance_address = ?address,
+                "Deployed contract"
+            );
+
+            let Some(Value::String(metadata)) =
+                compiled_contract.and_then(|contract| contract.metadata.as_ref())
+            else {
+                tracing::error!("Contract does not have a metadata field");
+                anyhow::bail!("Contract does not have a metadata field");
+            };
+
+            let Ok(metadata) = serde_json::from_str::<Value>(metadata) else {
+                tracing::error!(%metadata, "Failed to parse solc metadata into a structured value");
+                anyhow::bail!("Failed to parse solc metadata into a structured value {metadata}");
+            };
+
+            let Some(abi) = metadata.get("output").and_then(|value| value.get("abi")) else {
+                tracing::error!(%metadata, "Failed to access the .output.abi field of the solc metadata");
+                anyhow::bail!(
+                    "Failed to access the .output.abi field of the solc metadata {metadata}"
+                );
+            };
+
+            let Ok(abi) = serde_json::from_value::<JsonAbi>(abi.clone()) else {
+                tracing::error!(%metadata, "Failed to deserialize ABI into a structured format");
+                anyhow::bail!("Failed to deserialize ABI into a structured format {metadata}");
+            };
+
+            self.deployed_contracts
+                .entry(case_idx)
+                .or_default()
+                .insert(instance.clone(), (address, abi));
+
+            receipts.insert(instance.clone(), receipt);
         }
 
         Ok(receipts)
@@ -279,7 +324,9 @@ where
                 .remove(&input.instance)
                 .context("Failed to find deployment receipt"),
             Method::Fallback | Method::FunctionName(_) => {
-                let tx = match input.legacy_transaction(self.deployed_contracts(case_idx), node) {
+                let tx = match input
+                    .legacy_transaction(self.deployed_contracts.entry(case_idx).or_default(), node)
+                {
                     Ok(tx) => {
                         tracing::debug!("Legacy transaction data: {tx:#?}");
                         tx
@@ -313,13 +360,28 @@ where
         input: &Input,
         execution_receipt: &TransactionReceipt,
         node: &T::Blockchain,
-        mode: &SolcMode,
     ) -> anyhow::Result<()> {
         let span = tracing::info_span!("Handling input expectations");
         let _guard = span.enter();
 
         // Resolving the `input.expected` into a series of expectations that we can then assert on.
-        let mut expectations = match input {
+        let expectations = match input {
+            // This is a bit of a special case and we have to support it separately on it's own. If
+            // it's a call to the deployer method, then the tests will assert that it "returns" the
+            // address of the contract. Deployments do not return the address of the contract but
+            // the runtime code of the contracts. Therefore, this assertion would always fail. So,
+            // we replace it with an assertion of "check if it succeeded"
+            Input {
+                expected: Some(Expected::Calldata(Calldata::Compound(compound))),
+                method: Method::Deployer,
+                ..
+            } if compound.len() == 1
+                && compound
+                    .first()
+                    .is_some_and(|first| first.contains(".address")) =>
+            {
+                vec![ExpectedOutput::new().with_success()]
+            }
             Input {
                 expected: Some(Expected::Calldata(calldata)),
                 ..
@@ -335,17 +397,6 @@ where
             Input { expected: None, .. } => vec![ExpectedOutput::new().with_success()],
         };
 
-        // This is a bit of a special case and we have to support it separately on it's own. If it's
-        // a call to the deployer method, then the tests will assert that it "returns" the address
-        // of the contract. Deployments do not return the address of the contract but the runtime
-        // code of the contracts. Therefore, this assertion would always fail. So, we replace it
-        // with an assertion of "check if it succeeded"
-        if let Method::Deployer = &input.method {
-            for expectation in expectations.iter_mut() {
-                expectation.return_data = None;
-            }
-        }
-
         // Note: we need to do assertions and checks on the output of the last call and this isn't
         // available in the receipt. The only way to get this information is through tracing on the
         // node.
@@ -353,14 +404,12 @@ where
             .trace_transaction(
                 execution_receipt,
                 GethDebugTracingOptions {
-                    tracer: Some(GethDebugTracerType::BuiltInTracer(
+                    config: GethDefaultTracingOptions::default().with_enable_return_data(true),
-                        GethDebugBuiltInTracerType::CallTracer,
-                    )),
                     ..Default::default()
                 },
             )?
-            .try_into_call_frame()
+            .try_into_default_frame()
-            .expect("Impossible - we requested a callframe trace so we must get it back");
+            .expect("Impossible. We can't request default tracing and get some other type back");
 
         for expectation in expectations.iter() {
             self.handle_input_expectation_item(
@@ -369,7 +418,6 @@ where
                 node,
                 expectation,
                 &tracing_result,
-                mode,
             )?;
         }
 
@@ -382,26 +430,23 @@ where
         execution_receipt: &TransactionReceipt,
         node: &T::Blockchain,
         expectation: &ExpectedOutput,
-        tracing_result: &CallFrame,
+        tracing_result: &DefaultFrame,
-        mode: &SolcMode,
     ) -> anyhow::Result<()> {
-        if let Some(ref version_requirement) = expectation.compiler_version {
+        // TODO: We want to respect the compiler version filter on the expected output but would
-            let Some(compiler_version) = mode.last_patch_version(&self.config.solc) else {
+        // require some changes to the interfaces of the compiler and such. So, we add it later.
-                anyhow::bail!("unsupported solc version: {:?}", &mode.solc_version);
+        // Additionally, what happens if the compiler filter doesn't match? Do we consider that the
-            };
+        // transaction should succeed? Do we just ignore the expectation?
-            if !version_requirement.matches(&compiler_version) {
-                return Ok(());
-            }
-        }
-
-        let deployed_contracts = self.deployed_contracts(case_idx);
-        let chain_state_provider = node;
 
         // Handling the receipt state assertion.
         let expected = !expectation.exception;
         let actual = execution_receipt.status();
         if actual != expected {
-            tracing::error!(expected, actual, "Transaction status assertion failed",);
+            tracing::error!(
+                ?execution_receipt,
+                expected,
+                actual,
+                "Transaction status assertion failed",
+            );
             anyhow::bail!(
                 "Transaction status assertion failed - Expected {expected} but got {actual}",
             );
@@ -409,16 +454,13 @@ where
 
         // Handling the calldata assertion
         if let Some(ref expected_calldata) = expectation.return_data {
-            let expected = expected_calldata;
+            let expected = expected_calldata
-            let actual = &tracing_result.output.as_ref().unwrap_or_default();
+                .calldata(self.deployed_contracts.entry(case_idx).or_default(), node)
-            if !expected.is_equivalent(actual, deployed_contracts, chain_state_provider)? {
+                .map(Bytes::from)?;
-                tracing::error!(
+            let actual = tracing_result.return_value.clone();
-                    ?execution_receipt,
+            if !expected.starts_with(&actual) {
-                    ?expected,
+                tracing::error!(?execution_receipt, %expected, %actual, "Calldata assertion failed");
-                    %actual,
+                anyhow::bail!("Calldata assertion failed - Expected {expected} but got {actual}",);
-                    "Calldata assertion failed"
-                );
-                anyhow::bail!("Calldata assertion failed - Expected {expected:?} but got {actual}",);
             }
         }
 
@@ -428,7 +470,12 @@ where
             let expected = expected_events.len();
             let actual = execution_receipt.logs().len();
             if actual != expected {
-                tracing::error!(expected, actual, "Event count assertion failed",);
+                tracing::error!(
+                    ?execution_receipt,
+                    expected,
+                    actual,
+                    "Event count assertion failed",
+                );
                 anyhow::bail!(
                     "Event count assertion failed - Expected {expected} but got {actual}",
                 );
@@ -444,6 +491,7 @@ where
                     let actual = actual_event.address();
                     if actual != expected {
                         tracing::error!(
+                            ?execution_receipt,
                             %expected,
                             %actual,
                             "Event emitter assertion failed",
@@ -455,34 +503,27 @@ where
                 }
 
                 // Handling the topics assertion.
-                for (expected, actual) in expected_event
+                let expected = expected_event.topics.as_slice();
-                    .topics
+                let actual = actual_event.topics();
-                    .as_slice()
+                if actual != expected {
-                    .iter()
+                    tracing::error!(
-                    .zip(actual_event.topics())
+                        ?execution_receipt,
-                {
+                        ?expected,
-                    let expected = Calldata::new_compound([expected]);
+                        ?actual,
-                    if !expected.is_equivalent(
+                        "Event topics assertion failed",
-                        &actual.0,
+                    );
-                        deployed_contracts,
+                    anyhow::bail!(
-                        chain_state_provider,
+                        "Event topics assertion failed - Expected {expected:?} but got {actual:?}",
-                    )? {
+                    );
-                        tracing::error!(
-                            ?execution_receipt,
-                            ?expected,
-                            ?actual,
-                            "Event topics assertion failed",
-                        );
-                        anyhow::bail!(
-                            "Event topics assertion failed - Expected {expected:?} but got {actual:?}",
-                        );
-                    }
                 }
 
                 // 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)? {
+                if !expected.starts_with(actual) {
                     tracing::error!(
                         ?execution_receipt,
                         ?expected,
@@ -519,162 +560,6 @@ where
 
         Ok((execution_receipt, trace, diff))
     }
-
-    fn deployed_contracts(
-        &mut self,
-        case_idx: impl Into<Option<CaseIdx>>,
-    ) -> &mut HashMap<ContractInstance, (Address, JsonAbi)> {
-        match case_idx.into() {
-            Some(case_idx) => self
-                .deployed_contracts
-                .entry(case_idx)
-                .or_insert_with(|| self.deployed_libraries.clone()),
-            None => &mut self.deployed_libraries,
-        }
-    }
-
-    /// Gets the information of a deployed contract or library from the state. If it's found to not
-    /// be deployed then it will be deployed.
-    ///
-    /// If a [`CaseIdx`] is not specified then this contact instance address will be stored in the
-    /// cross-case deployed contracts address mapping.
-    #[allow(clippy::too_many_arguments)]
-    pub fn get_or_deploy_contract_instance(
-        &mut self,
-        contract_instance: &ContractInstance,
-        metadata: &Metadata,
-        case_idx: impl Into<Option<CaseIdx>>,
-        deployer: Address,
-        calldata: Option<&Calldata>,
-        value: Option<EtherValue>,
-        node: &T::Blockchain,
-    ) -> anyhow::Result<(Address, JsonAbi, Option<TransactionReceipt>)> {
-        let case_idx = case_idx.into();
-
-        if let Some((address, abi)) = self.deployed_libraries.get(contract_instance) {
-            return Ok((*address, abi.clone(), None));
-        }
-        if let Some(case_idx) = case_idx {
-            if let Some((address, abi)) = self
-                .deployed_contracts
-                .get(&case_idx)
-                .and_then(|contracts| contracts.get(contract_instance))
-            {
-                return Ok((*address, abi.clone(), None));
-            }
-        }
-
-        let Some(ContractPathAndIdent {
-            contract_source_path,
-            contract_ident,
-        }) = metadata.contract_sources()?.remove(contract_instance)
-        else {
-            tracing::error!("Contract source not found for instance");
-            anyhow::bail!(
-                "Contract source not found for instance {:?}",
-                contract_instance
-            )
-        };
-
-        let compiled_contract = self.contracts.iter().rev().find_map(|output| {
-            output
-                .contracts
-                .as_ref()?
-                .get(&contract_source_path.display().to_string())
-                .and_then(|source_file_contracts| {
-                    source_file_contracts.get(contract_ident.as_ref())
-                })
-        });
-        let Some(code) = compiled_contract
-            .and_then(|contract| contract.evm.as_ref().and_then(|evm| evm.bytecode.as_ref()))
-        else {
-            tracing::error!(
-                contract_source_path = contract_source_path.display().to_string(),
-                contract_ident = contract_ident.as_ref(),
-                "Failed to find bytecode for contract"
-            );
-            anyhow::bail!(
-                "Failed to find bytecode for contract {:?}",
-                contract_instance
-            )
-        };
-
-        let mut code = match alloy::hex::decode(&code.object) {
-            Ok(code) => code,
-            Err(error) => {
-                tracing::error!(
-                    ?error,
-                    contract_source_path = contract_source_path.display().to_string(),
-                    contract_ident = contract_ident.as_ref(),
-                    "Failed to hex-decode byte code - This could possibly mean that the bytecode requires linking"
-                );
-                anyhow::bail!("Failed to hex-decode the byte code {}", error)
-            }
-        };
-
-        let Some(Value::String(metadata)) =
-            compiled_contract.and_then(|contract| contract.metadata.as_ref())
-        else {
-            tracing::error!("Contract does not have a metadata field");
-            anyhow::bail!("Contract does not have a metadata field");
-        };
-
-        let Ok(metadata) = serde_json::from_str::<Value>(metadata) else {
-            tracing::error!(%metadata, "Failed to parse solc metadata into a structured value");
-            anyhow::bail!("Failed to parse solc metadata into a structured value {metadata}");
-        };
-
-        let Some(abi) = metadata.get("output").and_then(|value| value.get("abi")) else {
-            tracing::error!(%metadata, "Failed to access the .output.abi field of the solc metadata");
-            anyhow::bail!("Failed to access the .output.abi field of the solc metadata {metadata}");
-        };
-
-        let Ok(abi) = serde_json::from_value::<JsonAbi>(abi.clone()) else {
-            tracing::error!(%metadata, "Failed to deserialize ABI into a structured format");
-            anyhow::bail!("Failed to deserialize ABI into a structured format {metadata}");
-        };
-
-        if let Some(calldata) = calldata {
-            let calldata = calldata.calldata(self.deployed_contracts(case_idx), node)?;
-            code.extend(calldata);
-        }
-
-        let tx = {
-            let tx = TransactionRequest::default().from(deployer);
-            let tx = match value {
-                Some(ref value) => tx.value(value.into_inner()),
-                _ => tx,
-            };
-            TransactionBuilder::<Ethereum>::with_deploy_code(tx, code)
-        };
-
-        let receipt = match node.execute_transaction(tx) {
-            Ok(receipt) => receipt,
-            Err(error) => {
-                tracing::error!(
-                    node = std::any::type_name::<T>(),
-                    ?error,
-                    "Contract deployment transaction failed."
-                );
-                return Err(error);
-            }
-        };
-
-        let Some(address) = receipt.contract_address else {
-            tracing::error!("Contract deployment transaction didn't return an address");
-            anyhow::bail!("Contract deployment didn't return an address");
-        };
-        tracing::info!(
-            instance_name = ?contract_instance,
-            instance_address = ?address,
-            "Deployed contract"
-        );
-
-        self.deployed_contracts(case_idx)
-            .insert(contract_instance.clone(), (address, abi.clone()));
-
-        Ok((address, abi, Some(receipt)))
-    }
 }
 
 pub struct Driver<'a, Leader: Platform, Follower: Platform> {
@@ -758,22 +643,6 @@ where
         let tracing_span = tracing::info_span!("Handling metadata file");
         let _guard = tracing_span.enter();
 
-        // We only execute this input if it's valid for the leader and the follower. Otherwise, we
-        // skip it with a warning.
-        if !self
-            .leader_node
-            .matches_target(self.metadata.targets.as_deref())
-            || !self
-                .follower_node
-                .matches_target(self.metadata.targets.as_deref())
-        {
-            tracing::warn!(
-                targets = ?self.metadata.targets,
-                "Either the leader or follower node do not support the targets of the file"
-            );
-            return execution_result;
-        }
-
         for mode in self.metadata.solc_modes() {
             let tracing_span = tracing::info_span!("With solc mode", solc_mode = ?mode);
             let _guard = tracing_span.enter();
@@ -781,42 +650,6 @@ where
             let mut leader_state = State::<L>::new(self.config, span);
             let mut follower_state = State::<F>::new(self.config, span);
 
-            // Note: we are currently forced to do two compilation passes due to linking. In the
-            // first compilation pass we compile the libraries and publish them to the chain. In the
-            // second compilation pass we compile the contracts with the library addresses so that
-            // they're linked at compile-time.
-            let build_result = tracing::info_span!("Building and publishing libraries")
-                .in_scope(|| {
-                    match leader_state.build_and_publish_libraries(self.metadata, &mode, self.leader_node) {
-                        Ok(_) => {
-                            tracing::debug!(target = ?Target::Leader, "Library building succeeded");
-                            execution_result.add_successful_build(Target::Leader, mode.clone());
-                        },
-                        Err(error) => {
-                            tracing::error!(target = ?Target::Leader, ?error, "Library building failed");
-                            execution_result.add_failed_build(Target::Leader, mode.clone(), error);
-                            return Err(());
-                        }
-                    }
-                    match follower_state.build_and_publish_libraries(self.metadata, &mode, self.follower_node) {
-                        Ok(_) => {
-                            tracing::debug!(target = ?Target::Follower, "Library building succeeded");
-                            execution_result.add_successful_build(Target::Follower, mode.clone());
-                        },
-                        Err(error) => {
-                            tracing::error!(target = ?Target::Follower, ?error, "Library building failed");
-                            execution_result.add_failed_build(Target::Follower, mode.clone(), error);
-                            return Err(());
-                        }
-                    }
-                    Ok(())
-                });
-            if build_result.is_err() {
-                // Note: We skip to the next solc mode as there's nothing that we can do at this
-                // point, the building has failed. We do NOT bail out of the execution as a whole.
-                continue;
-            }
-
             // We build the contracts. If building the contracts for the metadata file fails then we
             // have no other option but to keep note of this error and move on to the next solc mode
             // and NOT just bail out of the execution as a whole.
@@ -861,7 +694,7 @@ 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).
@@ -873,13 +706,8 @@ where
                         tracing::info_span!("Executing input", contract_name = ?input.instance)
                             .in_scope(|| {
                                 let (leader_receipt, _, leader_diff) = match leader_state
-                                    .handle_input(
+                                    .handle_input(self.metadata, case_idx, &input, self.leader_node)
-                                        self.metadata,
+                                {
-                                        case_idx,
-                                        &input,
-                                        self.leader_node,
-                                        &mode,
-                                    ) {
                                     Ok(result) => result,
                                     Err(error) => {
                                         tracing::error!(
@@ -908,7 +736,6 @@ where
                                         case_idx,
                                         &input,
                                         self.follower_node,
-                                        &mode,
                                     ) {
                                     Ok(result) => result,
                                     Err(error) => {

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::{geth, kitchensink::KitchensinkNode};
-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;
     type Compiler: SolidityCompiler;
 
     /// Returns the matching [TestingPlatform] of the [revive_dt_config::Arguments].

crates/core/src/main.rs

@@ -1,5 +1,6 @@
 use std::{collections::HashMap, sync::LazyLock};
 
+use alloy::primitives::Address;
 use clap::Parser;
 use rayon::{ThreadPoolBuilder, prelude::*};
 
@@ -8,7 +9,7 @@ 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::MetadataFile};
 use revive_dt_node::pool::NodePool;
 use revive_dt_report::reporter::{Report, Span};
 use temp_dir::TempDir;
@@ -20,12 +21,24 @@ static TEMP_DIR: LazyLock<TempDir> = LazyLock::new(|| TempDir::new().unwrap());
 fn main() -> anyhow::Result<()> {
     let args = init_cli()?;
 
+    let corpora = collect_corpora(&args)?;
+    let additional_callers = corpora
+        .values()
+        .flat_map(|value| value.iter().map(|metadata| &metadata.cases))
+        .flat_map(|case| case.iter().map(|case| &case.inputs))
+        .flatten()
+        .map(|input| input.caller)
+        .filter(|caller| caller != &default_caller())
+        .collect::<Vec<_>>();
+
+    tracing::debug!(?additional_callers, "Discovered callers");
+
     for (corpus, tests) in collect_corpora(&args)? {
         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, &additional_callers, span)?,
         }
 
         Report::save()?;
@@ -83,15 +96,20 @@ 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_callers: &[Address],
+    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 leader_nodes = NodePool::<L::Blockchain>::new(args, additional_callers)?;
-    let follower_nodes = NodePool::<F::Blockchain>::new(args)?;
+    let follower_nodes = NodePool::<F::Blockchain>::new(args, additional_callers)?;
 
     tests.par_iter().for_each(
         |MetadataFile {
@@ -141,13 +159,18 @@ where
     Ok(())
 }
 
-fn execute_corpus(args: &Arguments, tests: &[MetadataFile], span: Span) -> anyhow::Result<()> {
+fn execute_corpus(
+    args: &Arguments,
+    tests: &[MetadataFile],
+    additional_callers: &[Address],
+    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_callers, span)?
         }
         (TestingPlatform::Geth, TestingPlatform::Geth) => {
-            run_driver::<Geth, Geth>(args, tests, span)?
+            run_driver::<Geth, Geth>(args, tests, additional_callers, 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

@@ -1,8 +1,7 @@
 use serde::Deserialize;
 
-use revive_dt_common::macros::define_wrapper_type;
-
 use crate::{
+    define_wrapper_type,
     input::{Expected, Input},
     mode::Mode,
 };
@@ -17,6 +16,12 @@ pub struct Case {
     pub expected: Option<Expected>,
 }
 
+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)]
+    CaseIdx(usize);
+);
+
 impl Case {
     pub fn inputs_iterator(&self) -> impl Iterator<Item = Input> {
         let inputs_len = self.inputs.len();
@@ -26,15 +31,7 @@ impl Case {
             .enumerate()
             .map(move |(idx, mut input)| {
                 if idx + 1 == inputs_len {
-                    if input.expected.is_none() {
+                    input.expected = self.expected.clone();
-                        input.expected = self.expected.clone();
-                    }
-
-                    // TODO: What does it mean for us to have an `expected` field on the case itself
-                    // but the final input also has an expected field that doesn't match the one on
-                    // the case? What are we supposed to do with that final expected field on the
-                    // case?
-
                     input
                 } else {
                     input
@@ -42,9 +39,3 @@ impl Case {
             })
     }
 }
-
-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);
-);

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
+/// In the above code it's hard to understand what the various types refer to or
-/// to contain.
+/// what to expect them to contain.
 ///
-/// With these wrapper types we're able to create code that's self-documenting in that the types
+/// With these wrapper types we're able to create code that's self-documenting
-/// tell us what the code is referring to. The above code is transformed into
+/// 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

@@ -9,10 +9,9 @@ use std::{
 
 use serde::{Deserialize, Serialize};
 
-use revive_dt_common::macros::define_wrapper_type;
-
 use crate::{
     case::Case,
+    define_wrapper_type,
     mode::{Mode, SolcMode},
 };
 
@@ -45,11 +44,10 @@ impl Deref for MetadataFile {
 
 #[derive(Debug, Default, Deserialize, Clone, Eq, PartialEq)]
 pub struct Metadata {
-    pub targets: Option<Vec<String>>,
     pub cases: Vec<Case>,
-    pub contracts: Option<BTreeMap<ContractInstance, ContractPathAndIdent>>,
+    pub contracts: Option<BTreeMap<ContractInstance, ContractPathAndIdentifier>>,
     // TODO: Convert into wrapper types for clarity.
-    pub libraries: Option<BTreeMap<PathBuf, BTreeMap<ContractIdent, ContractInstance>>>,
+    pub libraries: Option<BTreeMap<String, BTreeMap<String, String>>>,
     pub ignore: Option<bool>,
     pub modes: Option<Vec<Mode>>,
     pub file_path: Option<PathBuf>,
@@ -86,7 +84,7 @@ impl Metadata {
     /// Returns the contract sources with canonicalized paths for the files
     pub fn contract_sources(
         &self,
-    ) -> anyhow::Result<BTreeMap<ContractInstance, ContractPathAndIdent>> {
+    ) -> anyhow::Result<BTreeMap<ContractInstance, ContractPathAndIdentifier>> {
         let directory = self.directory()?;
         let mut sources = BTreeMap::new();
         let Some(contracts) = &self.contracts else {
@@ -95,7 +93,7 @@ impl Metadata {
 
         for (
             alias,
-            ContractPathAndIdent {
+            ContractPathAndIdentifier {
                 contract_source_path,
                 contract_ident,
             },
@@ -107,7 +105,7 @@ impl Metadata {
 
             sources.insert(
                 alias,
-                ContractPathAndIdent {
+                ContractPathAndIdentifier {
                     contract_source_path: absolute_path,
                     contract_ident,
                 },
@@ -193,10 +191,10 @@ impl Metadata {
                 metadata.file_path = Some(path.to_path_buf());
                 metadata.contracts = Some(
                     [(
-                        ContractInstance::new("test"),
+                        ContractInstance::new_from("test"),
-                        ContractPathAndIdent {
+                        ContractPathAndIdentifier {
                             contract_source_path: path.to_path_buf(),
-                            contract_ident: ContractIdent::new("Test"),
+                            contract_ident: ContractIdent::new_from("Test"),
                         },
                     )]
                     .into(),
@@ -218,22 +216,18 @@ 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(
+    #[derive(Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
-        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(
+    #[derive(Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
-        Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize,
-    )]
     #[serde(transparent)]
-    pub struct ContractIdent(String);
+    ContractIdent(String);
 );
 
 /// Represents an identifier used for contracts.
@@ -245,7 +239,7 @@ define_wrapper_type!(
 /// ```
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
 #[serde(try_from = "String", into = "String")]
-pub struct ContractPathAndIdent {
+pub struct ContractPathAndIdentifier {
     /// The path of the contract source code relative to the directory containing the metadata file.
     pub contract_source_path: PathBuf,
 
@@ -253,7 +247,7 @@ pub struct ContractPathAndIdent {
     pub contract_ident: ContractIdent,
 }
 
-impl Display for ContractPathAndIdent {
+impl Display for ContractPathAndIdentifier {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(
             f,
@@ -264,7 +258,7 @@ impl Display for ContractPathAndIdent {
     }
 }
 
-impl FromStr for ContractPathAndIdent {
+impl FromStr for ContractPathAndIdentifier {
     type Err = anyhow::Error;
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
@@ -300,7 +294,7 @@ impl FromStr for ContractPathAndIdent {
     }
 }
 
-impl TryFrom<String> for ContractPathAndIdent {
+impl TryFrom<String> for ContractPathAndIdentifier {
     type Error = anyhow::Error;
 
     fn try_from(value: String) -> Result<Self, Self::Error> {
@@ -308,8 +302,8 @@ impl TryFrom<String> for ContractPathAndIdent {
     }
 }
 
-impl From<ContractPathAndIdent> for String {
+impl From<ContractPathAndIdentifier> for String {
-    fn from(value: ContractPathAndIdent) -> Self {
+    fn from(value: ContractPathAndIdentifier) -> Self {
         value.to_string()
     }
 }
@@ -324,7 +318,7 @@ mod test {
         let string = "ERC20/ERC20.sol:ERC20";
 
         // Act
-        let identifier = ContractPathAndIdent::from_str(string);
+        let identifier = ContractPathAndIdentifier::from_str(string);
 
         // Assert
         let identifier = identifier.expect("Failed to parse");

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

@@ -9,7 +9,6 @@ use tokio::{
     runtime::Builder,
     sync::{mpsc::UnboundedSender, oneshot},
 };
-use tracing::Instrument;
 
 /// A blocking async executor.
 ///
@@ -23,7 +22,7 @@ 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 {
@@ -64,11 +63,6 @@ impl BlockingExecutor {
             let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel::<TaskMessage>();
 
             thread::spawn(move || {
-                tracing::info!(
-                    thread_id = ?std::thread::current().id(),
-                    "Starting async runtime thread"
-                );
-
                 let runtime = Builder::new_current_thread()
                     .enable_all()
                     .build()
@@ -113,9 +107,7 @@ impl BlockingExecutor {
         // in the task message. In doing this conversion, we lose some of the type information since
         // we're converting R => dyn Any. However, we will perform down-casting on the result to
         // convert it back into R.
-        let future = Box::pin(
+        let future = Box::pin(async move { Box::new(future.await) as Box<dyn Any + Send> });
-            async move { Box::new(future.await) as Box<dyn Any + Send> }.in_current_span(),
-        );
 
         let task = TaskMessage::new(future, response_tx);
         if let Err(error) = STATE.tx.send(task) {
@@ -134,17 +126,22 @@ impl BlockingExecutor {
             }
         };
 
-        let result = match result {
+        match result.map(|result| {
-            Ok(result) => 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");
+                tracing::error!(
-                anyhow::bail!("An error occurred when running the async task: {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 +200,7 @@ mod test {
     fn panics_in_futures_are_caught() {
         // Act
         let result = BlockingExecutor::execute(async move {
-            panic!(
+            panic!("This is a panic!");
-                "If this panic causes, well, a panic, then this is an issue. If it's caught then all good!"
-            );
             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/common.rs

@@ -1,9 +1,14 @@
+use ::core::pin::Pin;
+
 use alloy::{
-    network::{Network, TransactionBuilder},
+    consensus::SignableTransaction,
+    network::{Network, TransactionBuilder, TxSigner},
+    primitives::Address,
     providers::{
         Provider, SendableTx,
         fillers::{GasFiller, TxFiller},
     },
+    signers::{Signature, local::PrivateKeySigner},
     transports::TransportResult,
 };
 
@@ -76,3 +81,28 @@ where
         }
     }
 }
+
+/// This is a signer that is able to sign transactions for a specific address with another private
+/// key.
+pub struct AddressSigner {
+    pub private_key: PrivateKeySigner,
+    pub address: Address,
+}
+
+impl TxSigner<Signature> for AddressSigner {
+    fn address(&self) -> Address {
+        self.address
+    }
+
+    fn sign_transaction<'a, 'b, 'c>(
+        &'a self,
+        tx: &'b mut dyn SignableTransaction<Signature>,
+    ) -> Pin<Box<dyn Future<Output = Result<Signature, alloy::signers::Error>> + Send + 'c>>
+    where
+        'a: 'c,
+        'b: 'c,
+        Self: 'c,
+    {
+        <PrivateKeySigner as TxSigner<Signature>>::sign_transaction(&self.private_key, tx)
+    }
+}

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

@@ -11,9 +11,9 @@ use std::{
 
 use alloy::{
     eips::BlockNumberOrTag,
-    genesis::{Genesis, GenesisAccount},
+    genesis::Genesis,
-    network::{Ethereum, EthereumWallet, NetworkWallet},
+    network::{Ethereum, EthereumWallet},
-    primitives::{Address, BlockHash, BlockNumber, BlockTimestamp, FixedBytes, U256},
+    primitives::{Address, BlockHash, BlockNumber, BlockTimestamp, U256},
     providers::{
         Provider, ProviderBuilder,
         ext::DebugApi,
@@ -25,13 +25,14 @@ use alloy::{
     },
     signers::local::PrivateKeySigner,
 };
-use revive_dt_common::concepts::BlockingExecutor;
 use revive_dt_config::Arguments;
-use revive_dt_format::traits::ResolverApi;
+use revive_dt_node_interaction::{BlockingExecutor, EthereumNode};
-use revive_dt_node_interaction::EthereumNode;
 use tracing::Level;
 
-use crate::{Node, common::FallbackGasFiller, constants::INITIAL_BALANCE};
+use crate::{
+    Node,
+    common::{AddressSigner, FallbackGasFiller},
+};
 
 static NODE_COUNT: AtomicU32 = AtomicU32::new(0);
 
@@ -54,7 +55,10 @@ pub struct Instance {
     network_id: u64,
     start_timeout: u64,
     wallet: EthereumWallet,
+    private_key: PrivateKeySigner,
     nonce_manager: CachedNonceManager,
+    additional_callers: Vec<Address>,
+
     /// This vector stores [`File`] objects that we use for logging which we want to flush when the
     /// node object is dropped. We do not store them in a structured fashion at the moment (in
     /// separate fields) as the logic that we need to apply to them is all the same regardless of
@@ -76,28 +80,31 @@ 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> {
         create_dir_all(&self.base_directory)?;
         create_dir_all(&self.logs_directory)?;
 
+        // Modifying the genesis file so that we get our private key to control the other accounts.
         let mut genesis = serde_json::from_str::<Genesis>(&genesis)?;
-        for signer_address in
+        for additional_caller in self.additional_callers.iter() {
-            <EthereumWallet as NetworkWallet<Ethereum>>::signer_addresses(&self.wallet)
+            let account = genesis.alloc.entry(*additional_caller).or_default();
-        {
+            account.private_key = Some(self.private_key.to_bytes());
-            // Note, the use of the entry API here means that we only modify the entries for any
+            *account = account
-            // account that is not in the `alloc` field of the genesis state.
+                .clone()
-            genesis
+                .with_balance("1000000000000000000".parse().expect("Can't fail"));
-                .alloc
-                .entry(signer_address)
-                .or_insert(GenesisAccount::default().with_balance(U256::from(INITIAL_BALANCE)));
         }
         let genesis_path = self.base_directory.join(Self::GENESIS_JSON_FILE);
         serde_json::to_writer(File::create(&genesis_path)?, &genesis)?;
 
+        for additional_caller in self.additional_callers.iter() {
+            self.wallet.register_signer(AddressSigner {
+                private_key: self.private_key.clone(),
+                address: *additional_caller,
+            });
+        }
+
         let mut child = Command::new(&self.geth)
             .arg("init")
             .arg("--datadir")
@@ -271,45 +278,57 @@ 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
+            // At the moment we do not allow for the 60 seconds to be modified and we take it as
-            // when a lot of transactions are being submitted to the node. Thus, while initially we
+            // being an implementation detail that's invisible to anything outside of this module.
-            // 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
+            // We allow a total of 60 retries for getting the receipt with one second between each
-            // with exponential backoff each time we attempt to get the receipt and find that it's
+            // retry and the next which means that we allow for a total of 60 seconds of waiting
-            // not available.
+            // 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(Some(receipt)) => {
-                    Ok(None) => {}
+                        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 +364,7 @@ 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();
@@ -431,20 +448,11 @@ impl ResolverApi for Instance {
 }
 
 impl Node for Instance {
-    fn new(config: &Arguments) -> Self {
+    fn new(config: &Arguments, additional_callers: &[Address]) -> 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())
-        {
-            wallet.register_signer(signer);
-        }
-
         Self {
             connection_string: base_directory.join(Self::IPC_FILE).display().to_string(),
             data_directory: base_directory.join(Self::DATA_DIRECTORY),
@@ -455,11 +463,13 @@ impl Node for Instance {
             handle: None,
             network_id: config.network_id,
             start_timeout: config.geth_start_timeout,
-            wallet,
+            wallet: config.wallet(),
             // We know that we only need to be storing 2 files so we can specify that when creating
             // the vector. It's the stdout and stderr of the geth node.
             logs_file_to_flush: Vec::with_capacity(2),
             nonce_manager: Default::default(),
+            additional_callers: additional_callers.to_vec(),
+            private_key: config.signer(),
         }
     }
 
@@ -508,14 +518,6 @@ impl Node for Instance {
             .stdout;
         Ok(String::from_utf8_lossy(&output).into())
     }
-
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
-    fn matches_target(&self, targets: Option<&[String]>) -> bool {
-        match targets {
-            None => true,
-            Some(targets) => targets.iter().any(|str| str.as_str() == "evm"),
-        }
-    }
 }
 
 impl Drop for Instance {
@@ -528,7 +530,6 @@ impl Drop for Instance {
 #[cfg(test)]
 mod tests {
     use revive_dt_config::Arguments;
-
     use temp_dir::TempDir;
 
     use crate::{GENESIS_JSON, Node};
@@ -545,7 +546,7 @@ 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, &[]);
         node.init(GENESIS_JSON.to_owned())
             .expect("Failed to initialize the node")
             .spawn_process()
@@ -555,21 +556,21 @@ mod tests {
 
     #[test]
     fn init_works() {
-        Instance::new(&test_config().0)
+        Instance::new(&test_config().0, &[])
             .init(GENESIS_JSON.to_string())
             .unwrap();
     }
 
     #[test]
     fn spawn_works() {
-        Instance::new(&test_config().0)
+        Instance::new(&test_config().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, &[]).version().unwrap();
         assert!(
             version.starts_with("geth version"),
             "expected version string, got: '{version}'"

crates/node/src/kitchensink.rs

@@ -10,14 +10,12 @@ use std::{
 use alloy::{
     consensus::{BlockHeader, TxEnvelope},
     eips::BlockNumberOrTag,
-    genesis::{Genesis, GenesisAccount},
+    hex,
     network::{
-        Ethereum, EthereumWallet, Network, NetworkWallet, TransactionBuilder,
+        Ethereum, EthereumWallet, Network, TransactionBuilder, TransactionBuilderError,
-        TransactionBuilderError, UnbuiltTransactionError,
+        UnbuiltTransactionError,
-    },
-    primitives::{
-        Address, B64, B256, BlockHash, BlockNumber, BlockTimestamp, Bloom, Bytes, FixedBytes, U256,
     },
+    primitives::{Address, B64, B256, BlockHash, BlockNumber, BlockTimestamp, Bloom, Bytes, U256},
     providers::{
         Provider, ProviderBuilder,
         ext::DebugApi,
@@ -28,20 +26,17 @@ use alloy::{
         eth::{Block, Header, Transaction},
         trace::geth::{DiffMode, GethDebugTracingOptions, PreStateConfig, PreStateFrame},
     },
-    signers::local::PrivateKeySigner,
 };
-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);
 
@@ -128,20 +123,7 @@ impl KitchensinkNode {
                 None
             })
             .collect();
-        let mut eth_balances = {
+        let mut eth_balances = self.extract_balance_from_genesis_file(genesis)?;
-            let mut genesis = serde_json::from_str::<Genesis>(genesis)?;
-            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)));
-            }
-            self.extract_balance_from_genesis_file(&genesis)?
-        };
         merged_balances.append(&mut eth_balances);
 
         chainspec_json["genesis"]["runtimeGenesis"]["patch"]["balances"]["balances"] =
@@ -255,27 +237,42 @@ impl KitchensinkNode {
     #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
     fn extract_balance_from_genesis_file(
         &self,
-        genesis: &Genesis,
+        genesis_str: &str,
     ) -> anyhow::Result<Vec<(String, u128)>> {
-        genesis
+        let genesis_json: JsonValue = serde_json::from_str(genesis_str)?;
-            .alloc
+        let alloc = genesis_json
-            .iter()
+            .get("alloc")
-            .try_fold(Vec::new(), |mut vec, (address, acc)| {
+            .and_then(|a| a.as_object())
-                let substrate_address = Self::eth_to_substrate_address(address);
+            .ok_or_else(|| anyhow::anyhow!("Missing 'alloc' in genesis"))?;
-                let balance = acc.balance.try_into()?;
+
-                vec.push((substrate_address, balance));
+        let mut balances = Vec::new();
-                Ok(vec)
+        for (eth_addr, obj) in alloc.iter() {
-            })
+            let balance_str = obj.get("balance").and_then(|b| b.as_str()).unwrap_or("0");
+            let balance = if balance_str.starts_with("0x") {
+                u128::from_str_radix(balance_str.trim_start_matches("0x"), 16)?
+            } else {
+                balance_str.parse::<u128>()?
+            };
+            let substrate_addr = Self::eth_to_substrate_address(eth_addr)?;
+            balances.push((substrate_addr.clone(), balance));
+        }
+        Ok(balances)
     }
 
-    fn eth_to_substrate_address(address: &Address) -> String {
+    fn eth_to_substrate_address(eth_addr: &str) -> anyhow::Result<String> {
-        let eth_bytes = address.0.0;
+        let eth_bytes = hex::decode(eth_addr.trim_start_matches("0x"))?;
+        if eth_bytes.len() != 20 {
+            anyhow::bail!(
+                "Invalid Ethereum address length: expected 20 bytes, got {}",
+                eth_bytes.len()
+            );
+        }
 
         let mut padded = [0xEEu8; 32];
         padded[..20].copy_from_slice(&eth_bytes);
 
         let account_id = AccountId32::from(padded);
-        account_id.to_ss58check()
+        Ok(account_id.to_ss58check())
     }
 
     fn wait_ready(logs_file_path: &Path, marker: &str, timeout: Duration) -> anyhow::Result<()> {
@@ -426,9 +423,7 @@ 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();
@@ -512,27 +507,18 @@ impl ResolverApi for KitchensinkNode {
 }
 
 impl Node for KitchensinkNode {
-    fn new(config: &Arguments) -> Self {
+    fn new(config: &Arguments, _additional_callers: &[Address]) -> 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())
-        {
-            wallet.register_signer(signer);
-        }
-
         Self {
             id,
             substrate_binary: config.kitchensink.clone(),
             eth_proxy_binary: config.eth_proxy.clone(),
             rpc_url: String::new(),
-            wallet,
+            wallet: config.wallet(),
             base_directory,
             logs_directory,
             process_substrate: None,
@@ -593,14 +579,6 @@ impl Node for KitchensinkNode {
             .stdout;
         Ok(String::from_utf8_lossy(&output).into())
     }
-
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
-    fn matches_target(&self, targets: Option<&[String]>) -> bool {
-        match targets {
-            None => true,
-            Some(targets) => targets.iter().any(|str| str.as_str() == "pvm"),
-        }
-    }
 }
 
 impl Drop for KitchensinkNode {
@@ -656,12 +634,6 @@ impl TransactionBuilder<KitchenSinkNetwork> for <Ethereum as Network>::Transacti
         )
     }
 
-    fn take_nonce(&mut self) -> Option<u64> {
-        <<Ethereum as Network>::TransactionRequest as TransactionBuilder<Ethereum>>::take_nonce(
-            self,
-        )
-    }
-
     fn input(&self) -> Option<&alloy::primitives::Bytes> {
         <<Ethereum as Network>::TransactionRequest as TransactionBuilder<Ethereum>>::input(self)
     }
@@ -842,6 +814,12 @@ impl TransactionBuilder<KitchenSinkNetwork> for <Ethereum as Network>::Transacti
     > {
         Ok(wallet.sign_request(self).await?)
     }
+
+    fn take_nonce(&mut self) -> Option<u64> {
+        <<Ethereum as Network>::TransactionRequest as TransactionBuilder<Ethereum>>::take_nonce(
+            self,
+        )
+    }
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
@@ -1082,7 +1060,7 @@ 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, &[]);
         node.init(GENESIS_JSON)
             .expect("Failed to initialize the node")
             .spawn_process()
@@ -1137,7 +1115,7 @@ mod tests {
         }
         "#;
 
-        let mut dummy_node = KitchensinkNode::new(&test_config().0);
+        let mut dummy_node = KitchensinkNode::new(&test_config().0, &[]);
 
         // Call `init()`
         dummy_node.init(genesis_content).expect("init failed");
@@ -1151,12 +1129,12 @@ mod tests {
         let contents = fs::read_to_string(&final_chainspec_path).expect("Failed to read chainspec");
 
         // Validate that the Substrate addresses derived from the Ethereum addresses are in the file
-        let first_eth_addr = KitchensinkNode::eth_to_substrate_address(
+        let first_eth_addr =
-            &"90F8bf6A479f320ead074411a4B0e7944Ea8c9C1".parse().unwrap(),
+            KitchensinkNode::eth_to_substrate_address("90F8bf6A479f320ead074411a4B0e7944Ea8c9C1")
-        );
+                .unwrap();
-        let second_eth_addr = KitchensinkNode::eth_to_substrate_address(
+        let second_eth_addr =
-            &"Ab8483F64d9C6d1EcF9b849Ae677dD3315835cb2".parse().unwrap(),
+            KitchensinkNode::eth_to_substrate_address("Ab8483F64d9C6d1EcF9b849Ae677dD3315835cb2")
-        );
+                .unwrap();
 
         assert!(
             contents.contains(&first_eth_addr),
@@ -1181,10 +1159,10 @@ mod tests {
         }
         "#;
 
-        let node = KitchensinkNode::new(&test_config().0);
+        let node = KitchensinkNode::new(&test_config().0, &[]);
 
         let result = node
-            .extract_balance_from_genesis_file(&serde_json::from_str(genesis_json).unwrap())
+            .extract_balance_from_genesis_file(genesis_json)
             .unwrap();
 
         let result_map: std::collections::HashMap<_, _> = result.into_iter().collect();
@@ -1214,7 +1192,7 @@ mod tests {
         ];
 
         for eth_addr in eth_addresses {
-            let ss58 = KitchensinkNode::eth_to_substrate_address(&eth_addr.parse().unwrap());
+            let ss58 = KitchensinkNode::eth_to_substrate_address(eth_addr).unwrap();
 
             println!("Ethereum: {eth_addr} -> Substrate SS58: {ss58}");
         }
@@ -1242,7 +1220,7 @@ mod tests {
         ];
 
         for (eth_addr, expected_ss58) in cases {
-            let result = KitchensinkNode::eth_to_substrate_address(&eth_addr.parse().unwrap());
+            let result = KitchensinkNode::eth_to_substrate_address(eth_addr).unwrap();
             assert_eq!(
                 result, expected_ss58,
                 "Mismatch for Ethereum address {eth_addr}"
@@ -1254,7 +1232,7 @@ mod tests {
     fn spawn_works() {
         let (config, _temp_dir) = test_config();
 
-        let mut node = KitchensinkNode::new(&config);
+        let mut node = KitchensinkNode::new(&config, &[]);
         node.spawn(GENESIS_JSON.to_string()).unwrap();
     }
 
@@ -1262,7 +1240,7 @@ mod tests {
     fn version_works() {
         let (config, _temp_dir) = test_config();
 
-        let node = KitchensinkNode::new(&config);
+        let node = KitchensinkNode::new(&config, &[]);
         let version = node.version().unwrap();
 
         assert!(
@@ -1275,7 +1253,7 @@ mod tests {
     fn eth_rpc_version_works() {
         let (config, _temp_dir) = test_config();
 
-        let node = KitchensinkNode::new(&config);
+        let node = KitchensinkNode::new(&config, &[]);
         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::primitives::Address;
 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 +15,7 @@ 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_callers: &[Address]) -> Self;
 
     /// Spawns a node configured according to the genesis json.
     ///
@@ -32,8 +32,4 @@ pub trait Node: EthereumNode {
 
     /// Returns the node version.
     fn version(&self) -> anyhow::Result<String>;
-
-    /// Given a list of targets from the metadata file, this function determines if the metadata
-    /// file can be ran on this node or not.
-    fn matches_target(&self, targets: Option<&[String]>) -> bool;
 }

crates/node/src/pool.rs

@@ -6,6 +6,7 @@ use std::{
     thread,
 };
 
+use alloy::primitives::Address;
 use anyhow::Context;
 use revive_dt_config::Arguments;
 
@@ -23,7 +24,7 @@ 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_callers: &[Address]) -> anyhow::Result<Self> {
         let nodes = config.workers;
         let genesis = read_to_string(&config.genesis_file).context(format!(
             "can not read genesis file: {}",
@@ -34,7 +35,10 @@ 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_callers = additional_callers.to_vec();
+            handles.push(thread::spawn(move || {
+                spawn_node::<T>(&config, genesis, &additional_callers)
+            }));
         }
 
         let mut nodes = Vec::with_capacity(nodes);
@@ -60,8 +64,12 @@ where
     }
 }
 
-fn spawn_node<T: Node + Send>(args: &Arguments, genesis: String) -> anyhow::Result<T> {
+fn spawn_node<T: Node + Send>(
-    let mut node = T::new(args);
+    args: &Arguments,
+    genesis: String,
+    additional_callers: &[Address],
+) -> anyhow::Result<T> {
+    let mut node = T::new(args, additional_callers);
     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": "1000000000000000000"
+        }
+    }
 }