Scaffold utility and library (#3)

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
Signed-off-by: xermicus <bigcyrill@hotmail.com>

crates/node/src/lib.rs

@@ -0,0 +1,36 @@
+//! This crate implements the testing nodes.
+
+use alloy::rpc::types::{TransactionReceipt, trace::geth::DiffMode};
+use revive_dt_config::Arguments;
+use revive_dt_node_interaction::EthereumNode;
+
+pub mod geth;
+pub mod pool;
+
+/// The default genesis configuration.
+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;
+
+    /// Spawns a node configured according to the genesis json.
+    ///
+    /// Blocking until it's ready to accept transactions.
+    fn spawn(&mut self, genesis: String) -> anyhow::Result<()>;
+
+    /// Prune the node instance and related data.
+    ///
+    /// Blocking until it's completely stopped.
+    fn shutdown(self) -> anyhow::Result<()>;
+
+    /// Returns the nodes connection string.
+    fn connection_string(&self) -> String;
+
+    /// Returns the state diff of the transaction hash in the [TransactionReceipt].
+    fn state_diff(&self, transaction: TransactionReceipt) -> anyhow::Result<DiffMode>;
+
+    /// Returns the node version.
+    fn version(&self) -> anyhow::Result<String>;
+}