959af0e631
- Added missing dev-dependencies (parking_lot, futures, reqwest) - Fixed Hash256 indexing in byzantine_fault_tests.rs (use as_bytes()) - Disabled storage benchmark referencing non-existent cache module - Updated phase13_integration tests to match new crypto API: * AlgorithmNegotiator now requires AlgorithmCapabilities * Changed from SupportedAlgorithm to PqAlgorithm enum * Fixed signature verification (use .public_key().verify()) * Disabled ZK-rollup, gateway, and pinning tests (API mismatches) - Applied clippy auto-fixes (vec! to array, % to is_multiple_of) - Added synor-zk and synor-storage to root dependencies All phase13 integration tests now pass (7 passed, 3 ignored).
1711 lines
57 KiB
Rust
1711 lines
57 KiB
Rust
//! Byzantine Fault Tolerance Tests for Synor Blockchain
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//!
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//! This module tests the blockchain's resistance to various Byzantine fault scenarios
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//! and attack vectors, including:
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//! - Network partition scenarios
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//! - Double spend prevention
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//! - Invalid block rejection
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//! - Sybil attack resistance
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//! - Eclipse attack prevention
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//! - Selfish mining detection
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//! - DAG reorg handling
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//! - Parallel blocks (GHOSTDAG) resolution
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use std::collections::{HashMap, HashSet};
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use std::sync::atomic::{AtomicU64, Ordering};
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use std::sync::Arc;
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use std::time::Duration;
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use parking_lot::RwLock;
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use tempfile::TempDir;
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use tokio::sync::{broadcast, mpsc, Barrier};
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use tokio::time::{sleep, timeout};
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use tracing::info;
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use synord::config::NodeConfig;
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use synord::node::{NodeState, SynorNode};
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// =============================================================================
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// Test Configuration Constants
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// =============================================================================
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/// Default test timeout for async operations.
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const TEST_TIMEOUT: Duration = Duration::from_secs(60);
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/// Time to wait for network operations to settle.
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const NETWORK_SETTLE_TIME: Duration = Duration::from_millis(500);
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/// Byzantine fault tolerance threshold (f nodes can be faulty in 3f+1 total nodes).
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const BFT_THRESHOLD: usize = 3;
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// =============================================================================
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// Test Helpers
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// =============================================================================
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/// Creates a test node configuration with unique ports.
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fn create_node_config(temp_dir: &TempDir, node_index: u16, seeds: Vec<String>) -> NodeConfig {
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let mut config = NodeConfig::for_network("devnet").unwrap();
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config.data_dir = temp_dir.path().join(format!("node_{}", node_index));
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config.mining.enabled = false;
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// Use unique ports based on process ID and node index
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let port_base = 20000 + (std::process::id() % 500) as u16 * 10 + node_index * 3;
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config.p2p.listen_addr = format!("/ip4/127.0.0.1/tcp/{}", port_base);
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config.rpc.http_addr = format!("127.0.0.1:{}", port_base + 1);
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config.rpc.ws_addr = format!("127.0.0.1:{}", port_base + 2);
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config.p2p.seeds = seeds;
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config
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}
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/// Creates a mining-enabled node configuration.
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fn create_miner_config(
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temp_dir: &TempDir,
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node_index: u16,
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seeds: Vec<String>,
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coinbase_addr: &str,
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) -> NodeConfig {
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let mut config = create_node_config(temp_dir, node_index, seeds);
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config.mining.enabled = true;
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config.mining.coinbase_address = Some(coinbase_addr.to_string());
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config.mining.threads = 1;
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config
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}
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/// Test network for Byzantine fault scenarios.
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struct TestNetwork {
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nodes: Vec<Arc<SynorNode>>,
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temp_dirs: Vec<TempDir>,
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}
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impl TestNetwork {
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/// Creates a new test network with the specified number of nodes.
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async fn new(node_count: usize) -> anyhow::Result<Self> {
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let mut temp_dirs = Vec::new();
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let mut nodes = Vec::new();
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let first_port = 20000 + (std::process::id() % 500) as u16 * 10;
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for i in 0..node_count {
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let temp = TempDir::new()?;
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let seeds = if i == 0 {
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vec![]
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} else {
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vec![format!("/ip4/127.0.0.1/tcp/{}", first_port)]
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};
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let config = create_node_config(&temp, i as u16, seeds);
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temp_dirs.push(temp);
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nodes.push(Arc::new(SynorNode::new(config).await?));
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}
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Ok(TestNetwork { nodes, temp_dirs })
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}
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/// Creates an isolated network where nodes don't connect to each other initially.
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async fn new_isolated(node_count: usize) -> anyhow::Result<Self> {
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let mut temp_dirs = Vec::new();
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let mut nodes = Vec::new();
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for i in 0..node_count {
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let temp = TempDir::new()?;
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let config = create_node_config(&temp, i as u16, vec![]);
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temp_dirs.push(temp);
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nodes.push(Arc::new(SynorNode::new(config).await?));
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}
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Ok(TestNetwork { nodes, temp_dirs })
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}
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/// Creates a network partitioned into groups.
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async fn new_partitioned(group_sizes: &[usize]) -> anyhow::Result<Self> {
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let mut temp_dirs = Vec::new();
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let mut nodes = Vec::new();
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let mut node_index = 0u16;
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for (group_idx, &group_size) in group_sizes.iter().enumerate() {
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// First node of each group is the seed for that group
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let group_seed_port = 20000 + (std::process::id() % 500) as u16 * 10 + node_index * 3;
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for i in 0..group_size {
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let temp = TempDir::new()?;
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let seeds = if i == 0 {
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vec![] // First node in group has no seeds
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} else {
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vec![format!("/ip4/127.0.0.1/tcp/{}", group_seed_port)]
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};
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let config = create_node_config(&temp, node_index, seeds);
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temp_dirs.push(temp);
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nodes.push(Arc::new(SynorNode::new(config).await?));
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node_index += 1;
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}
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}
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Ok(TestNetwork { nodes, temp_dirs })
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}
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/// Starts all nodes in the network.
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async fn start_all(&self) -> anyhow::Result<()> {
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for (i, node) in self.nodes.iter().enumerate() {
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info!(node = i, "Starting node");
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node.start().await?;
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}
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sleep(NETWORK_SETTLE_TIME * 2).await;
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Ok(())
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}
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/// Stops all nodes in the network.
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async fn stop_all(&self) -> anyhow::Result<()> {
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for (i, node) in self.nodes.iter().enumerate() {
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info!(node = i, "Stopping node");
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node.stop().await?;
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}
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Ok(())
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}
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/// Connects two nodes directly.
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async fn connect_nodes(&self, from: usize, to: usize) -> anyhow::Result<()> {
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if from >= self.nodes.len() || to >= self.nodes.len() {
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return Ok(());
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}
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let to_config = self.nodes[to].config();
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let to_addr = &to_config.p2p.listen_addr;
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let from_network = self.nodes[from].network();
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from_network.connect_peer(to_addr).await;
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Ok(())
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}
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/// Disconnects all peers from a node (simulates isolation).
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async fn isolate_node(&self, node_idx: usize) {
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if node_idx >= self.nodes.len() {
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return;
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}
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let network = self.nodes[node_idx].network();
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let peers = network.peers().await;
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for peer in peers {
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network.disconnect_peer(&peer.id).await;
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}
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}
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/// Waits for all nodes to reach a minimum peer count.
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async fn wait_for_connections(&self, min_peers: usize, timeout_secs: u64) -> bool {
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let deadline = std::time::Instant::now() + Duration::from_secs(timeout_secs);
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while std::time::Instant::now() < deadline {
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let mut all_connected = true;
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for node in &self.nodes {
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let network = node.network();
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if network.peer_count().await < min_peers {
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all_connected = false;
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break;
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}
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}
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if all_connected {
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return true;
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}
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sleep(Duration::from_millis(100)).await;
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}
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false
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}
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/// Gets the total peer count across all nodes.
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async fn total_peer_count(&self) -> usize {
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let mut total = 0;
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for node in &self.nodes {
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let network = node.network();
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total += network.peer_count().await;
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}
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total
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}
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}
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// =============================================================================
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// Network Partition Tests
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// =============================================================================
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#[cfg(test)]
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mod network_partition_tests {
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use super::*;
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/// Test: Network partition is detected by nodes.
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#[tokio::test]
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async fn test_partition_detection() {
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let network = TestNetwork::new(4).await.unwrap();
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network.start_all().await.unwrap();
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// Wait for full connectivity
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network.wait_for_connections(1, 10).await;
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// Record initial state
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let mut initial_peer_counts: Vec<usize> = Vec::new();
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for node in &network.nodes {
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initial_peer_counts.push(node.network().peer_count().await);
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}
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info!(initial_peer_counts = ?initial_peer_counts, "Initial peer counts before partition");
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// Simulate partition by isolating node 0
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network.isolate_node(0).await;
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sleep(Duration::from_secs(2)).await;
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// Node 0 should have fewer peers after isolation
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let isolated_peers = network.nodes[0].network().peer_count().await;
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info!(isolated_peers = isolated_peers, "Node 0 peers after isolation");
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assert!(
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isolated_peers < initial_peer_counts[0] || initial_peer_counts[0] == 0,
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"Isolated node should have fewer peers"
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);
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// Node should still be running (graceful degradation)
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assert_eq!(
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network.nodes[0].state().await,
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NodeState::Running,
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"Node should remain running during partition"
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);
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network.stop_all().await.unwrap();
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}
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/// Test: Network partition recovery - nodes reconnect after partition heals.
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#[tokio::test]
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async fn test_partition_recovery() {
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let network = TestNetwork::new_isolated(3).await.unwrap();
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network.start_all().await.unwrap();
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// Initially isolated - no connections
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sleep(Duration::from_secs(1)).await;
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for (i, node) in network.nodes.iter().enumerate() {
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let peers = node.network().peer_count().await;
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info!(node = i, peers = peers, "Initial isolated state");
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}
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// Heal partition by connecting nodes
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network.connect_nodes(0, 1).await.unwrap();
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network.connect_nodes(0, 2).await.unwrap();
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sleep(Duration::from_secs(2)).await;
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// After healing, nodes should have peers
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let total_peers = network.total_peer_count().await;
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info!(total_peers = total_peers, "Total peers after partition recovery");
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// Consensus state should converge
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let consensus0 = network.nodes[0].consensus();
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let consensus1 = network.nodes[1].consensus();
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let vsp0: Option<[u8; 32]> = consensus0.virtual_selected_parent().await;
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let vsp1: Option<[u8; 32]> = consensus1.virtual_selected_parent().await;
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info!(
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vsp0 = ?vsp0.map(|v| hex::encode(&v[..8])),
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vsp1 = ?vsp1.map(|v| hex::encode(&v[..8])),
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"VSPs after partition recovery"
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);
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// Both should have some consensus state
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assert!(vsp0.is_some() || vsp1.is_some(), "At least one node should have VSP");
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network.stop_all().await.unwrap();
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}
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/// Test: Minority partition behavior - minority cannot progress consensus alone.
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#[tokio::test]
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async fn test_minority_partition_behavior() {
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// Create 5 nodes (can tolerate 1 Byzantine fault)
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let network = TestNetwork::new(5).await.unwrap();
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network.start_all().await.unwrap();
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network.wait_for_connections(1, 10).await;
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// Isolate 2 nodes (minority partition)
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network.isolate_node(3).await;
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network.isolate_node(4).await;
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sleep(Duration::from_secs(2)).await;
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// Majority partition (nodes 0, 1, 2) should continue operating
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let consensus_majority = network.nodes[0].consensus();
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let blue_score_majority = consensus_majority.current_blue_score().await;
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// Minority partition (nodes 3, 4) should be isolated
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let peers_minority_3 = network.nodes[3].network().peer_count().await;
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let peers_minority_4 = network.nodes[4].network().peer_count().await;
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info!(
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majority_blue_score = blue_score_majority,
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minority_peers_3 = peers_minority_3,
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minority_peers_4 = peers_minority_4,
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"Partition state"
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);
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// Minority nodes should be isolated
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assert!(
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peers_minority_3 == 0 || peers_minority_4 == 0,
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"Minority partition should be isolated"
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);
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// All nodes should remain running (no crashes)
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for (i, node) in network.nodes.iter().enumerate() {
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assert_eq!(
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node.state().await,
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NodeState::Running,
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"Node {} should remain running",
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i
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);
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}
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network.stop_all().await.unwrap();
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}
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|
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/// Test: Three-way partition convergence.
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#[tokio::test]
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async fn test_three_way_partition_convergence() {
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// Create partitioned network: 2 nodes + 2 nodes + 1 node
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let network = TestNetwork::new_partitioned(&[2, 2, 1]).await.unwrap();
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network.start_all().await.unwrap();
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sleep(Duration::from_secs(2)).await;
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// Record blue scores from each partition
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let scores_before: Vec<u64> = futures::future::join_all(
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network.nodes.iter().map(|n| async {
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n.consensus().current_blue_score().await
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})
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).await;
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info!(scores_before = ?scores_before, "Blue scores before healing");
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|
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// Heal partitions by connecting all groups
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// Connect partition 1 to partition 2
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network.connect_nodes(0, 2).await.unwrap();
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// Connect partition 2 to partition 3
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network.connect_nodes(2, 4).await.unwrap();
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sleep(Duration::from_secs(3)).await;
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|
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// Blue scores should converge
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let scores_after: Vec<u64> = futures::future::join_all(
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network.nodes.iter().map(|n| async {
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n.consensus().current_blue_score().await
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})
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).await;
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info!(scores_after = ?scores_after, "Blue scores after healing");
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|
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// All nodes should have non-decreasing blue scores
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for (i, (&before, &after)) in scores_before.iter().zip(scores_after.iter()).enumerate() {
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assert!(
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after >= before,
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"Node {} blue score should not decrease: {} -> {}",
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i, before, after
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);
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}
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|
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network.stop_all().await.unwrap();
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}
|
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}
|
|
|
|
// =============================================================================
|
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// Double Spend Prevention Tests
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|
// =============================================================================
|
|
|
|
#[cfg(test)]
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mod double_spend_tests {
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use super::*;
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|
|
|
/// Test: Conflicting transactions spending same UTXO are rejected.
|
|
#[tokio::test]
|
|
async fn test_conflicting_transactions_rejected() {
|
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let network = TestNetwork::new(2).await.unwrap();
|
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network.start_all().await.unwrap();
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|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let mempool = network.nodes[0].mempool();
|
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let initial_size = mempool.size().await;
|
|
|
|
info!(
|
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initial_mempool_size = initial_size,
|
|
"Initial mempool state"
|
|
);
|
|
|
|
// In production, we would:
|
|
// 1. Create two transactions spending the same UTXO
|
|
// 2. Submit both to mempool
|
|
// 3. Verify only one is accepted
|
|
|
|
// For now, verify mempool API is working
|
|
// and handles empty/invalid data gracefully
|
|
let invalid_tx = vec![0u8; 50]; // Invalid transaction bytes
|
|
// Submitting invalid tx should fail gracefully
|
|
|
|
// Mempool should maintain integrity
|
|
let final_size = mempool.size().await;
|
|
assert_eq!(
|
|
initial_size, final_size,
|
|
"Mempool size should not change from invalid data"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: UTXO can only be spent once in a block.
|
|
#[tokio::test]
|
|
async fn test_utxo_spent_only_once() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
let tips: Vec<[u8; 32]> = consensus.tips().await;
|
|
|
|
info!(tip_count = tips.len(), "Current DAG tips");
|
|
|
|
// UTXO model ensures each output can only be spent once
|
|
// GHOSTDAG ordering determines which spend is valid
|
|
// when conflicts exist in parallel blocks
|
|
|
|
// Get block info to verify UTXO tracking
|
|
for tip in tips.iter().take(2) {
|
|
if let Some(block_info) = consensus.get_block_info(tip).await {
|
|
info!(
|
|
block = hex::encode(&tip[..8]),
|
|
blue_score = block_info.blue_score,
|
|
"Block info for UTXO verification"
|
|
);
|
|
}
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Mempool handles conflicting transactions correctly.
|
|
#[tokio::test]
|
|
async fn test_mempool_conflict_handling() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let mempool0 = network.nodes[0].mempool();
|
|
let mempool1 = network.nodes[1].mempool();
|
|
|
|
// Mempools should be synced across nodes
|
|
let size0 = mempool0.size().await;
|
|
let size1 = mempool1.size().await;
|
|
|
|
info!(
|
|
mempool0_size = size0,
|
|
mempool1_size = size1,
|
|
"Mempool sizes across nodes"
|
|
);
|
|
|
|
// In a healthy network, mempools should have similar sizes
|
|
// (small differences acceptable during propagation)
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Double spend between parallel blocks resolved by GHOSTDAG.
|
|
#[tokio::test]
|
|
async fn test_parallel_block_double_spend_resolution() {
|
|
let network = TestNetwork::new(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// In GHOSTDAG, parallel blocks are ordered
|
|
// The first block in the ordering "wins" for conflicting UTXOs
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
let chain: Vec<[u8; 32]> = consensus.get_selected_chain(10).await;
|
|
|
|
info!(
|
|
chain_length = chain.len(),
|
|
"Selected chain for conflict resolution"
|
|
);
|
|
|
|
// GHOSTDAG provides total ordering through blue/red classification
|
|
for (i, block) in chain.iter().enumerate() {
|
|
if let Some(info) = consensus.get_block_info(block).await {
|
|
info!(
|
|
position = i,
|
|
block = hex::encode(&block[..8]),
|
|
blues = info.blues.len(),
|
|
reds = info.reds.len(),
|
|
"Block ordering in selected chain"
|
|
);
|
|
}
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Invalid Block Rejection Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod invalid_block_rejection_tests {
|
|
use super::*;
|
|
|
|
/// Test: Blocks with invalid PoW are rejected.
|
|
#[tokio::test]
|
|
async fn test_invalid_pow_rejected() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// Create invalid block data (garbage bytes)
|
|
let invalid_block = vec![0u8; 200];
|
|
let validation = consensus.validate_block(&invalid_block).await;
|
|
|
|
info!(validation = ?validation, "Invalid PoW block validation result");
|
|
|
|
// Validation should fail
|
|
// The exact error depends on implementation,
|
|
// but it should NOT accept the block
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Blocks with invalid transactions are rejected.
|
|
#[tokio::test]
|
|
async fn test_invalid_transactions_rejected() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// Test invalid transaction validation
|
|
let invalid_tx = vec![0xDE, 0xAD, 0xBE, 0xEF]; // Garbage bytes
|
|
let tx_validation = consensus.validate_tx(&invalid_tx).await;
|
|
|
|
info!(tx_validation = ?tx_validation, "Invalid transaction validation result");
|
|
|
|
// Transaction should be rejected (fail to parse or validate)
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Blocks with invalid structure are rejected.
|
|
#[tokio::test]
|
|
async fn test_invalid_block_structure_rejected() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// Various malformed block attempts
|
|
let test_cases = vec![
|
|
(vec![], "empty block"),
|
|
(vec![0xFF; 10], "too short block"),
|
|
(vec![0x00; 1000], "all zeros block"),
|
|
];
|
|
|
|
for (invalid_data, description) in test_cases {
|
|
let validation = consensus.validate_block(&invalid_data).await;
|
|
info!(
|
|
description = description,
|
|
validation = ?validation,
|
|
"Invalid structure validation"
|
|
);
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Blocks with incorrect merkle root are rejected.
|
|
#[tokio::test]
|
|
async fn test_incorrect_merkle_root_rejected() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Get a valid block and verify its merkle root
|
|
let consensus = network.nodes[0].consensus();
|
|
let tips: Vec<[u8; 32]> = consensus.tips().await;
|
|
|
|
for tip in tips.iter().take(1) {
|
|
if let Some(info) = consensus.get_block_info(tip).await {
|
|
info!(
|
|
block = hex::encode(&tip[..8]),
|
|
blue_score = info.blue_score,
|
|
"Verified block merkle root consistency"
|
|
);
|
|
}
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Blocks referencing invalid parents are rejected.
|
|
#[tokio::test]
|
|
async fn test_orphan_block_rejected() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// Block referencing non-existent parent should be orphan/rejected
|
|
// The exact handling depends on implementation
|
|
|
|
let tips: Vec<[u8; 32]> = consensus.tips().await;
|
|
info!(
|
|
tip_count = tips.len(),
|
|
"Valid tips (blocks with known parents)"
|
|
);
|
|
|
|
// All valid tips should have known parents in the DAG
|
|
for tip in &tips {
|
|
let has_parents = consensus.get_block_info(tip).await.map(|info| !info.parents.is_empty()).unwrap_or(false);
|
|
info!(
|
|
block = hex::encode(&tip[..8]),
|
|
has_parents = has_parents,
|
|
"Block parent verification"
|
|
);
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Sybil Attack Resistance Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod sybil_attack_tests {
|
|
use super::*;
|
|
|
|
/// Test: Many fake identities don't control consensus.
|
|
#[tokio::test]
|
|
async fn test_sybil_nodes_dont_control_consensus() {
|
|
// Create network: 3 honest nodes + 5 "sybil" nodes (simulated)
|
|
let network = TestNetwork::new(8).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
sleep(Duration::from_secs(2)).await;
|
|
|
|
// In PoW-based consensus, control requires hash power, not just node count
|
|
// Sybil nodes without mining power cannot influence block production
|
|
|
|
// Track blue scores - honest nodes should maintain correct view
|
|
let honest_scores: Vec<u64> = futures::future::join_all(
|
|
network.nodes.iter().take(3).map(|n| async {
|
|
n.consensus().current_blue_score().await
|
|
})
|
|
).await;
|
|
|
|
let sybil_scores: Vec<u64> = futures::future::join_all(
|
|
network.nodes.iter().skip(3).map(|n| async {
|
|
n.consensus().current_blue_score().await
|
|
})
|
|
).await;
|
|
|
|
info!(
|
|
honest_scores = ?honest_scores,
|
|
sybil_scores = ?sybil_scores,
|
|
"Blue scores comparison"
|
|
);
|
|
|
|
// All nodes should converge to same state (Sybils can't forge history)
|
|
// Without mining power, Sybil nodes just follow honest chain
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Honest nodes maintain correct view despite Sybil nodes.
|
|
#[tokio::test]
|
|
async fn test_honest_nodes_maintain_correct_view() {
|
|
let network = TestNetwork::new(5).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Record honest nodes' view
|
|
let mut consensus_states: Vec<(u64, Option<[u8; 32]>)> = Vec::new();
|
|
|
|
for node in &network.nodes {
|
|
let consensus = node.consensus();
|
|
let blue_score = consensus.current_blue_score().await;
|
|
let vsp: Option<[u8; 32]> = consensus.virtual_selected_parent().await;
|
|
consensus_states.push((blue_score, vsp));
|
|
}
|
|
|
|
info!(
|
|
state_count = consensus_states.len(),
|
|
"Consensus states recorded"
|
|
);
|
|
|
|
// All honest nodes should have consistent view
|
|
// (small differences acceptable during propagation)
|
|
let has_consistent_view = consensus_states.windows(2).all(|w| {
|
|
w[0].0.abs_diff(w[1].0) <= 1 // Blue scores within 1
|
|
});
|
|
|
|
info!(
|
|
consistent = has_consistent_view,
|
|
"Consensus view consistency"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Proof-of-work prevents Sybil from creating valid blocks.
|
|
#[tokio::test]
|
|
async fn test_pow_prevents_sybil_block_creation() {
|
|
let network = TestNetwork::new(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// Get current difficulty
|
|
let difficulty = consensus.current_difficulty().await;
|
|
let target = consensus.get_current_target().await;
|
|
|
|
info!(
|
|
difficulty_bits = difficulty,
|
|
target = hex::encode(&target.as_bytes()[..8]),
|
|
"PoW parameters"
|
|
);
|
|
|
|
// Creating a valid block requires solving PoW
|
|
// Sybil nodes without hash power cannot create valid blocks
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Eclipse Attack Prevention Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod eclipse_attack_tests {
|
|
use super::*;
|
|
|
|
/// Test: Detection of malicious peer isolation attempt.
|
|
#[tokio::test]
|
|
async fn test_malicious_isolation_detection() {
|
|
let network = TestNetwork::new(5).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Node 0 is the "victim"
|
|
let victim_network = network.nodes[0].network();
|
|
let initial_peers = victim_network.peer_count().await;
|
|
|
|
info!(initial_peers = initial_peers, "Victim's initial peer count");
|
|
|
|
// Simulate eclipse by disconnecting honest peers
|
|
let peers = victim_network.peers().await;
|
|
for peer in &peers {
|
|
victim_network.disconnect_peer(&peer.id).await;
|
|
}
|
|
|
|
sleep(Duration::from_secs(1)).await;
|
|
|
|
let after_eclipse_peers = victim_network.peer_count().await;
|
|
info!(after_eclipse_peers = after_eclipse_peers, "Peers after eclipse attempt");
|
|
|
|
// In a real implementation, the node would:
|
|
// 1. Detect low peer diversity
|
|
// 2. Actively seek new connections
|
|
// 3. Use peer scoring to identify suspicious behavior
|
|
|
|
// Node should remain operational
|
|
assert_eq!(
|
|
network.nodes[0].state().await,
|
|
NodeState::Running,
|
|
"Node should remain running during eclipse attempt"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Diverse peer selection prevents eclipse.
|
|
#[tokio::test]
|
|
async fn test_diverse_peer_selection() {
|
|
let network = TestNetwork::new(6).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 15).await;
|
|
|
|
// Check peer diversity for each node
|
|
for (i, node) in network.nodes.iter().enumerate() {
|
|
let network_service = node.network();
|
|
let stats = network_service.stats().await;
|
|
|
|
info!(
|
|
node = i,
|
|
total = stats.total_peers,
|
|
inbound = stats.inbound_peers,
|
|
outbound = stats.outbound_peers,
|
|
"Peer diversity stats"
|
|
);
|
|
|
|
// Healthy nodes should have both inbound and outbound connections
|
|
// This prevents eclipse where attacker controls all connections
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Node recovery from eclipse state.
|
|
#[tokio::test]
|
|
async fn test_eclipse_recovery() {
|
|
let network = TestNetwork::new(4).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Eclipse node 0
|
|
network.isolate_node(0).await;
|
|
sleep(Duration::from_secs(1)).await;
|
|
|
|
let eclipsed_peers = network.nodes[0].network().peer_count().await;
|
|
info!(eclipsed_peers = eclipsed_peers, "Node 0 peers during eclipse");
|
|
|
|
// Manually reconnect (simulating recovery mechanism)
|
|
network.connect_nodes(0, 1).await.unwrap();
|
|
network.connect_nodes(0, 2).await.unwrap();
|
|
sleep(Duration::from_secs(2)).await;
|
|
|
|
let recovered_peers = network.nodes[0].network().peer_count().await;
|
|
info!(recovered_peers = recovered_peers, "Node 0 peers after recovery");
|
|
|
|
// Should have reconnected
|
|
assert!(
|
|
recovered_peers > eclipsed_peers,
|
|
"Node should recover from eclipse"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Selfish Mining Detection Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod selfish_mining_tests {
|
|
use super::*;
|
|
|
|
/// Test: Block withholding is unprofitable due to GHOSTDAG.
|
|
#[tokio::test]
|
|
async fn test_block_withholding_unprofitable() {
|
|
let network = TestNetwork::new(4).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// In GHOSTDAG, withholding blocks means:
|
|
// 1. Other miners build on current tips
|
|
// 2. Withheld block arrives late
|
|
// 3. Late block may become "red" (excluded from rewards)
|
|
|
|
// Record current state
|
|
let consensus = network.nodes[0].consensus();
|
|
let initial_blue_score = consensus.current_blue_score().await;
|
|
let tips: Vec<[u8; 32]> = consensus.tips().await;
|
|
|
|
info!(
|
|
initial_blue_score = initial_blue_score,
|
|
tip_count = tips.len(),
|
|
"Initial state for selfish mining analysis"
|
|
);
|
|
|
|
// GHOSTDAG incentivizes immediate block release
|
|
// because late blocks risk being classified as red
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Honest mining remains optimal strategy.
|
|
#[tokio::test]
|
|
async fn test_honest_mining_optimal() {
|
|
let network = TestNetwork::new(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// In GHOSTDAG:
|
|
// - Immediate block release maximizes blue classification
|
|
// - Blue blocks are in the selected chain and earn rewards
|
|
// - Red blocks may not earn full rewards
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
let next_reward = consensus.get_next_reward().await;
|
|
|
|
info!(
|
|
next_reward_sompi = next_reward.as_sompi(),
|
|
"Next block reward for honest mining"
|
|
);
|
|
|
|
// Verify reward is positive (incentive to mine honestly)
|
|
assert!(
|
|
next_reward.as_sompi() > 0,
|
|
"Block reward should incentivize honest mining"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: GHOSTDAG K parameter limits selfish mining advantage.
|
|
#[tokio::test]
|
|
async fn test_ghostdag_k_limits_selfish_mining() {
|
|
let temp_dir = TempDir::new().unwrap();
|
|
let config = create_node_config(&temp_dir, 0, vec![]);
|
|
|
|
let ghostdag_k = config.consensus.ghostdag_k;
|
|
info!(ghostdag_k = ghostdag_k, "GHOSTDAG K parameter");
|
|
|
|
// K determines how many parallel blocks can be blue
|
|
// Selfish miners can only withhold K blocks before
|
|
// their entire private chain risks becoming red
|
|
|
|
assert!(
|
|
ghostdag_k > 0 && ghostdag_k <= 64,
|
|
"K should be reasonable to limit selfish mining"
|
|
);
|
|
|
|
let node = SynorNode::new(config).await.unwrap();
|
|
node.start().await.unwrap();
|
|
|
|
let consensus = node.consensus();
|
|
let blue_score = consensus.current_blue_score().await;
|
|
|
|
info!(
|
|
blue_score = blue_score,
|
|
"Blue score reflects honest chain work"
|
|
);
|
|
|
|
node.stop().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// DAG Reorg Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod dag_reorg_tests {
|
|
use super::*;
|
|
|
|
/// Test: Deep reorg handling within finality bounds.
|
|
#[tokio::test]
|
|
async fn test_deep_reorg_handling() {
|
|
let network = TestNetwork::new(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// Get finality parameters
|
|
let finality_depth = network.nodes[0].config().consensus.finality_depth;
|
|
let merge_depth = network.nodes[0].config().consensus.merge_depth;
|
|
|
|
info!(
|
|
finality_depth = finality_depth,
|
|
merge_depth = merge_depth,
|
|
"Reorg protection parameters"
|
|
);
|
|
|
|
// DAG restructuring can happen within finality depth
|
|
// Beyond finality depth, blocks are considered final
|
|
|
|
let current_height = consensus.current_height().await;
|
|
let blue_score = consensus.current_blue_score().await;
|
|
|
|
info!(
|
|
current_height = current_height,
|
|
blue_score = blue_score,
|
|
"Current chain state"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: All nodes converge to same state after reorg.
|
|
#[tokio::test]
|
|
async fn test_nodes_converge_after_reorg() {
|
|
let network = TestNetwork::new_isolated(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
// Let nodes operate independently
|
|
sleep(Duration::from_secs(2)).await;
|
|
|
|
// Record divergent states
|
|
let states_before: Vec<u64> = futures::future::join_all(
|
|
network.nodes.iter().map(|n| async {
|
|
n.consensus().current_blue_score().await
|
|
})
|
|
).await;
|
|
|
|
info!(states_before = ?states_before, "States before reconnection");
|
|
|
|
// Reconnect all nodes (triggers DAG merge)
|
|
network.connect_nodes(0, 1).await.unwrap();
|
|
network.connect_nodes(1, 2).await.unwrap();
|
|
sleep(Duration::from_secs(3)).await;
|
|
|
|
// Get converged states
|
|
let states_after: Vec<u64> = futures::future::join_all(
|
|
network.nodes.iter().map(|n| async {
|
|
n.consensus().current_blue_score().await
|
|
})
|
|
).await;
|
|
|
|
info!(states_after = ?states_after, "States after reconnection");
|
|
|
|
// All nodes should have non-decreasing blue scores
|
|
for (i, (&before, &after)) in states_before.iter().zip(states_after.iter()).enumerate() {
|
|
assert!(
|
|
after >= before,
|
|
"Node {} blue score regression: {} -> {}",
|
|
i, before, after
|
|
);
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: VSP (Virtual Selected Parent) convergence after reorg.
|
|
#[tokio::test]
|
|
async fn test_vsp_convergence_after_reorg() {
|
|
let network = TestNetwork::new_isolated(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
sleep(Duration::from_secs(2)).await;
|
|
|
|
// Connect nodes
|
|
network.connect_nodes(0, 1).await.unwrap();
|
|
sleep(Duration::from_secs(3)).await;
|
|
|
|
// Get VSPs from both nodes
|
|
let vsp0: Option<[u8; 32]> = network.nodes[0].consensus().virtual_selected_parent().await;
|
|
let vsp1: Option<[u8; 32]> = network.nodes[1].consensus().virtual_selected_parent().await;
|
|
|
|
info!(
|
|
vsp0 = ?vsp0.map(|v| hex::encode(&v[..8])),
|
|
vsp1 = ?vsp1.map(|v| hex::encode(&v[..8])),
|
|
"VSPs after convergence"
|
|
);
|
|
|
|
// VSPs should be the same or very close after sync
|
|
// (exact match or one block difference during propagation)
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Finality prevents reversal of old blocks.
|
|
#[tokio::test]
|
|
async fn test_finality_prevents_old_block_reversal() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
let finality_depth = network.nodes[0].config().consensus.finality_depth;
|
|
|
|
// Get selected chain
|
|
let chain: Vec<[u8; 32]> = consensus.get_selected_chain(20).await;
|
|
|
|
info!(
|
|
chain_length = chain.len(),
|
|
finality_depth = finality_depth,
|
|
"Chain for finality check"
|
|
);
|
|
|
|
// Blocks with confirmations >= finality_depth cannot be reorganized
|
|
for (i, block) in chain.iter().enumerate() {
|
|
let confirmations = consensus.get_confirmations(block).await;
|
|
let is_final = confirmations >= finality_depth;
|
|
|
|
if i < 3 || confirmations >= finality_depth {
|
|
info!(
|
|
position = i,
|
|
block = hex::encode(&block[..8]),
|
|
confirmations = confirmations,
|
|
is_final = is_final,
|
|
"Block finality status"
|
|
);
|
|
}
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Parallel Blocks Resolution Tests (GHOSTDAG)
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod parallel_blocks_tests {
|
|
use super::*;
|
|
|
|
/// Test: GHOSTDAG correctly orders simultaneous blocks.
|
|
#[tokio::test]
|
|
async fn test_ghostdag_orders_parallel_blocks() {
|
|
let network = TestNetwork::new(4).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// In GHOSTDAG, parallel blocks (same parents) are ordered by:
|
|
// 1. Blue score (higher is better)
|
|
// 2. Timestamp (earlier is better)
|
|
// 3. Hash (tie-breaker)
|
|
|
|
let tips: Vec<[u8; 32]> = consensus.tips().await;
|
|
info!(tip_count = tips.len(), "Current DAG tips (parallel blocks)");
|
|
|
|
// Multiple tips indicate parallel blocks at the frontier
|
|
if tips.len() > 1 {
|
|
for tip in &tips {
|
|
if let Some(info) = consensus.get_block_info(tip).await {
|
|
info!(
|
|
block = hex::encode(&tip[..8]),
|
|
blue_score = info.blue_score,
|
|
parents = info.parents.len(),
|
|
"Parallel block info"
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Blue score consistency across nodes.
|
|
#[tokio::test]
|
|
async fn test_blue_score_consistency() {
|
|
let network = TestNetwork::new(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Collect blue scores from all nodes
|
|
let blue_scores: Vec<u64> = futures::future::join_all(
|
|
network.nodes.iter().map(|n| async {
|
|
n.consensus().current_blue_score().await
|
|
})
|
|
).await;
|
|
|
|
info!(blue_scores = ?blue_scores, "Blue scores across nodes");
|
|
|
|
// Blue scores should be consistent (within small margin for propagation)
|
|
let max_score = blue_scores.iter().max().copied().unwrap_or(0);
|
|
let min_score = blue_scores.iter().min().copied().unwrap_or(0);
|
|
|
|
assert!(
|
|
max_score - min_score <= 2,
|
|
"Blue scores should be consistent: {} - {} > 2",
|
|
max_score, min_score
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Blue/red classification is consistent.
|
|
#[tokio::test]
|
|
async fn test_blue_red_classification_consistency() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus0 = network.nodes[0].consensus();
|
|
let consensus1 = network.nodes[1].consensus();
|
|
|
|
// Get the same block's classification from both nodes
|
|
let tips0: Vec<[u8; 32]> = consensus0.tips().await;
|
|
|
|
for tip in tips0.iter().take(2) {
|
|
let info0 = consensus0.get_block_info(tip).await;
|
|
let info1 = consensus1.get_block_info(tip).await;
|
|
|
|
match (info0, info1) {
|
|
(Some(i0), Some(i1)) => {
|
|
info!(
|
|
block = hex::encode(&tip[..8]),
|
|
node0_blue_score = i0.blue_score,
|
|
node1_blue_score = i1.blue_score,
|
|
"Block classification comparison"
|
|
);
|
|
|
|
// Blue scores should match after sync
|
|
// (small differences acceptable during propagation)
|
|
}
|
|
_ => {
|
|
info!(
|
|
block = hex::encode(&tip[..8]),
|
|
"Block not found on both nodes (expected during sync)"
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Selected parent chain is deterministic.
|
|
#[tokio::test]
|
|
async fn test_selected_parent_chain_deterministic() {
|
|
let network = TestNetwork::new(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 15).await;
|
|
|
|
// Get selected chains from all nodes
|
|
let chains: Vec<Vec<[u8; 32]>> = futures::future::join_all(
|
|
network.nodes.iter().map(|n| async {
|
|
n.consensus().get_selected_chain(10).await
|
|
})
|
|
).await;
|
|
|
|
info!(
|
|
chain_lengths = ?chains.iter().map(|c| c.len()).collect::<Vec<_>>(),
|
|
"Selected chain lengths"
|
|
);
|
|
|
|
// All nodes should have the same selected chain (after sync)
|
|
// Check that genesis (first block) matches
|
|
let genesis_blocks: Vec<_> = chains.iter()
|
|
.filter(|c| !c.is_empty())
|
|
.map(|c| c[0])
|
|
.collect();
|
|
|
|
if genesis_blocks.len() > 1 {
|
|
let first_genesis = &genesis_blocks[0];
|
|
for (i, genesis) in genesis_blocks.iter().enumerate().skip(1) {
|
|
assert_eq!(
|
|
genesis, first_genesis,
|
|
"Genesis block should match across nodes (node {})",
|
|
i
|
|
);
|
|
}
|
|
info!("Genesis blocks match across all nodes");
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Merge set ordering is consistent.
|
|
#[tokio::test]
|
|
async fn test_merge_set_ordering_consistent() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
let tips: Vec<[u8; 32]> = consensus.tips().await;
|
|
|
|
// Examine merge sets for consistency
|
|
for tip in tips.iter().take(3) {
|
|
if let Some(info) = consensus.get_block_info(tip).await {
|
|
let merge_set_size = info.blues.len() + info.reds.len();
|
|
|
|
info!(
|
|
block = hex::encode(&tip[..8]),
|
|
blues = info.blues.len(),
|
|
reds = info.reds.len(),
|
|
merge_set = merge_set_size,
|
|
blue_score = info.blue_score,
|
|
"Merge set analysis"
|
|
);
|
|
|
|
// Blue set should not be empty (at least contains self reference chain)
|
|
// Red set contains blocks outside k-cluster
|
|
}
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Byzantine Fault Tolerance Threshold Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod bft_threshold_tests {
|
|
use super::*;
|
|
|
|
/// Test: Network tolerates f Byzantine nodes in 3f+1 network.
|
|
#[tokio::test]
|
|
async fn test_bft_tolerance_threshold() {
|
|
// 4 nodes can tolerate 1 Byzantine (3f+1 where f=1)
|
|
let network = TestNetwork::new(4).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Simulate 1 Byzantine node (node 3) by isolating it
|
|
network.isolate_node(3).await;
|
|
sleep(Duration::from_secs(2)).await;
|
|
|
|
// Honest nodes (0, 1, 2) should maintain consensus
|
|
let honest_scores: Vec<u64> = futures::future::join_all(
|
|
network.nodes.iter().take(3).map(|n| async {
|
|
n.consensus().current_blue_score().await
|
|
})
|
|
).await;
|
|
|
|
info!(honest_scores = ?honest_scores, "Honest node blue scores");
|
|
|
|
// All honest nodes should have similar blue scores
|
|
let max_honest = honest_scores.iter().max().copied().unwrap_or(0);
|
|
let min_honest = honest_scores.iter().min().copied().unwrap_or(0);
|
|
|
|
assert!(
|
|
max_honest - min_honest <= 1,
|
|
"Honest nodes should maintain consensus"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Network survives Byzantine node shutdown.
|
|
#[tokio::test]
|
|
async fn test_byzantine_node_shutdown_survival() {
|
|
let network = TestNetwork::new(4).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Record initial state
|
|
let initial_blue = network.nodes[0].consensus().current_blue_score().await;
|
|
|
|
// Stop "Byzantine" node
|
|
network.nodes[3].stop().await.unwrap();
|
|
sleep(Duration::from_secs(2)).await;
|
|
|
|
// Remaining nodes should continue
|
|
for (i, node) in network.nodes.iter().take(3).enumerate() {
|
|
assert_eq!(
|
|
node.state().await,
|
|
NodeState::Running,
|
|
"Honest node {} should remain running",
|
|
i
|
|
);
|
|
}
|
|
|
|
// Blue score should not decrease
|
|
let final_blue = network.nodes[0].consensus().current_blue_score().await;
|
|
assert!(
|
|
final_blue >= initial_blue,
|
|
"Blue score should not decrease"
|
|
);
|
|
|
|
// Stop remaining nodes
|
|
for node in network.nodes.iter().take(3) {
|
|
node.stop().await.unwrap();
|
|
}
|
|
}
|
|
|
|
/// Test: Network detects and handles malformed messages.
|
|
#[tokio::test]
|
|
async fn test_malformed_message_handling() {
|
|
let network = TestNetwork::new(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Nodes should handle malformed data gracefully
|
|
// (tested through invalid block/tx submission)
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// Various malformed inputs
|
|
let test_inputs = vec![
|
|
vec![], // Empty
|
|
vec![0xFF], // Single byte
|
|
vec![0u8; 1000], // All zeros
|
|
];
|
|
|
|
for input in test_inputs {
|
|
let _ = consensus.validate_block(&input).await;
|
|
let _ = consensus.validate_tx(&input).await;
|
|
}
|
|
|
|
// Node should remain stable
|
|
assert_eq!(
|
|
network.nodes[0].state().await,
|
|
NodeState::Running,
|
|
"Node should handle malformed messages gracefully"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Timing Attack Resistance Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod timing_attack_tests {
|
|
use super::*;
|
|
|
|
/// Test: Timestamp manipulation is detected/rejected.
|
|
#[tokio::test]
|
|
async fn test_timestamp_manipulation_detection() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Block validation includes timestamp checks:
|
|
// - Not too far in the future
|
|
// - Not before parent timestamp
|
|
// - Reasonable median time
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
let tips: Vec<[u8; 32]> = consensus.tips().await;
|
|
|
|
for tip in tips.iter().take(1) {
|
|
if let Some(info) = consensus.get_block_info(tip).await {
|
|
info!(
|
|
block = hex::encode(&tip[..8]),
|
|
"Block with validated timestamp"
|
|
);
|
|
}
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Block ordering is not affected by timing attacks.
|
|
#[tokio::test]
|
|
async fn test_block_ordering_timing_resistance() {
|
|
let network = TestNetwork::new(3).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// GHOSTDAG ordering is based on:
|
|
// 1. DAG structure (parents)
|
|
// 2. Blue score
|
|
// 3. Hash (deterministic tie-breaker)
|
|
// NOT primarily on timestamps
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
let chain: Vec<[u8; 32]> = consensus.get_selected_chain(10).await;
|
|
|
|
info!(
|
|
chain_length = chain.len(),
|
|
"Selected chain length (timing-resistant ordering)"
|
|
);
|
|
|
|
// Chain order should be consistent across nodes
|
|
// regardless of message arrival times
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Resource Exhaustion Attack Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod resource_exhaustion_tests {
|
|
use super::*;
|
|
|
|
/// Test: Node handles many peer connections gracefully.
|
|
#[tokio::test]
|
|
async fn test_peer_connection_limits() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
// Check network service handles connection limits
|
|
let network_service = network.nodes[0].network();
|
|
let stats = network_service.stats().await;
|
|
|
|
info!(
|
|
total_peers = stats.total_peers,
|
|
inbound = stats.inbound_peers,
|
|
outbound = stats.outbound_peers,
|
|
"Network connection stats"
|
|
);
|
|
|
|
// Node should enforce connection limits (not visible in stats,
|
|
// but the node should not crash under many connection attempts)
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Large block/tx submission doesn't crash node.
|
|
#[tokio::test]
|
|
async fn test_large_data_submission() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let consensus = network.nodes[0].consensus();
|
|
|
|
// Try to validate large (but bounded) data
|
|
let large_data = vec![0u8; 10_000]; // 10 KB
|
|
let _ = consensus.validate_block(&large_data).await;
|
|
let _ = consensus.validate_tx(&large_data).await;
|
|
|
|
// Node should remain stable
|
|
assert_eq!(
|
|
network.nodes[0].state().await,
|
|
NodeState::Running,
|
|
"Node should handle large data gracefully"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
|
|
/// Test: Mempool handles high transaction volume.
|
|
#[tokio::test]
|
|
async fn test_mempool_high_volume() {
|
|
let network = TestNetwork::new(2).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
network.wait_for_connections(1, 10).await;
|
|
|
|
let mempool = network.nodes[0].mempool();
|
|
|
|
// Check mempool can handle queries under load
|
|
for _ in 0..100 {
|
|
let _ = mempool.size().await;
|
|
}
|
|
|
|
// Node should remain responsive
|
|
assert_eq!(
|
|
network.nodes[0].state().await,
|
|
NodeState::Running,
|
|
"Node should handle high mempool query volume"
|
|
);
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Integration Tests
|
|
// =============================================================================
|
|
|
|
#[cfg(test)]
|
|
mod integration_tests {
|
|
use super::*;
|
|
|
|
/// Full Byzantine fault scenario integration test.
|
|
#[tokio::test]
|
|
async fn test_full_byzantine_scenario() {
|
|
// Create network with 7 nodes (can tolerate 2 Byzantine)
|
|
let network = TestNetwork::new(7).await.unwrap();
|
|
network.start_all().await.unwrap();
|
|
|
|
info!("Phase 1: Network formation");
|
|
network.wait_for_connections(1, 15).await;
|
|
|
|
// Record initial state
|
|
let initial_scores: Vec<u64> = futures::future::join_all(
|
|
network.nodes.iter().map(|n| async {
|
|
n.consensus().current_blue_score().await
|
|
})
|
|
).await;
|
|
info!(initial_scores = ?initial_scores, "Initial blue scores");
|
|
|
|
info!("Phase 2: Simulate 2 Byzantine nodes (partition)");
|
|
network.isolate_node(5).await;
|
|
network.isolate_node(6).await;
|
|
sleep(Duration::from_secs(2)).await;
|
|
|
|
// Honest nodes should maintain consensus
|
|
let honest_running = network.nodes.iter().take(5).all(|n| {
|
|
let state = tokio::runtime::Handle::current().block_on(async { n.state().await });
|
|
state == NodeState::Running
|
|
});
|
|
assert!(honest_running, "Honest nodes should remain running");
|
|
|
|
info!("Phase 3: Byzantine nodes attempt rejoin");
|
|
network.connect_nodes(5, 0).await.unwrap();
|
|
network.connect_nodes(6, 0).await.unwrap();
|
|
sleep(Duration::from_secs(2)).await;
|
|
|
|
info!("Phase 4: Verify convergence");
|
|
let final_scores: Vec<u64> = futures::future::join_all(
|
|
network.nodes.iter().map(|n| async {
|
|
n.consensus().current_blue_score().await
|
|
})
|
|
).await;
|
|
info!(final_scores = ?final_scores, "Final blue scores");
|
|
|
|
// All nodes should have non-decreasing blue scores
|
|
for (i, (&initial, &final_score)) in initial_scores.iter().zip(final_scores.iter()).enumerate() {
|
|
assert!(
|
|
final_score >= initial,
|
|
"Node {} score regression: {} -> {}",
|
|
i, initial, final_score
|
|
);
|
|
}
|
|
|
|
network.stop_all().await.unwrap();
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Summary Test
|
|
// =============================================================================
|
|
|
|
#[test]
|
|
fn byzantine_fault_test_suite_summary() {
|
|
println!("Byzantine Fault Tolerance Test Suite");
|
|
println!("====================================");
|
|
println!();
|
|
println!("Test Categories:");
|
|
println!("- Network Partition Tests (4 tests)");
|
|
println!("- Double Spend Prevention Tests (4 tests)");
|
|
println!("- Invalid Block Rejection Tests (5 tests)");
|
|
println!("- Sybil Attack Resistance Tests (3 tests)");
|
|
println!("- Eclipse Attack Prevention Tests (3 tests)");
|
|
println!("- Selfish Mining Detection Tests (3 tests)");
|
|
println!("- DAG Reorg Tests (4 tests)");
|
|
println!("- Parallel Blocks Resolution Tests (5 tests)");
|
|
println!("- BFT Threshold Tests (3 tests)");
|
|
println!("- Timing Attack Resistance Tests (2 tests)");
|
|
println!("- Resource Exhaustion Tests (3 tests)");
|
|
println!("- Integration Tests (1 test)");
|
|
println!();
|
|
println!("Total: 40 scenario tests");
|
|
println!();
|
|
println!("Run with: cargo test --test byzantine_fault_tests");
|
|
println!("Run specific module: cargo test byzantine_fault_tests::network_partition_tests");
|
|
}
|