qudag-network 0.5.0

P2P networking layer for QuDAG - LibP2P with onion routing, dark addressing, and quantum encryption
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272

//! Unit tests for NetworkManager

use qudag_network::{
    NetworkConfig, NetworkManager, NetworkEvent, PeerMetadata, ReputationManager, NetworkStats,
    types::{NetworkError, PeerId as OurPeerId},
};
use libp2p::PeerId as LibP2PPeerId;
use std::time::Duration;
use tokio::sync::mpsc;
use tokio::time::timeout;

#[tokio::test]
async fn test_network_manager_initialization() {
    let mut manager = NetworkManager::new();
    assert!(manager.initialize().await.is_ok());
    assert!(manager.local_peer_id().is_some());
}

#[tokio::test]
async fn test_network_manager_with_config() {
    let config = NetworkConfig {
        max_connections: 20,
        connection_timeout: Duration::from_secs(10),
        discovery_interval: Duration::from_secs(30),
        bootstrap_peers: vec!["peer1".to_string(), "peer2".to_string()],
        enable_dht: false,
        quantum_resistant: true,
    };
    
    let manager = NetworkManager::with_config(config.clone());
    assert_eq!(manager.config.max_connections, 20);
    assert_eq!(manager.config.bootstrap_peers.len(), 2);
}

#[tokio::test]
async fn test_peer_connection_lifecycle() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    // Mock peer connection
    let peer_address = "127.0.0.1:8080";
    let result = manager.connect_peer(peer_address).await;
    
    // Should return a peer ID (mocked in current implementation)
    assert!(result.is_ok());
    let peer_id = result.unwrap();
    
    // Check if peer is in connected list
    let connected_peers = manager.get_connected_peers().await;
    assert!(connected_peers.contains(&peer_id));
    
    // Test disconnection
    assert!(manager.disconnect_peer(&peer_id).await.is_ok());
    
    // Verify peer is removed
    let connected_peers = manager.get_connected_peers().await;
    assert!(!connected_peers.contains(&peer_id));
}

#[tokio::test]
async fn test_message_sending() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    // Connect a peer first
    let peer_id = manager.connect_peer("127.0.0.1:8080").await.unwrap();
    
    // Send message
    let message = vec![1, 2, 3, 4, 5];
    assert!(manager.send_message(&peer_id, message.clone()).await.is_ok());
    
    // Test sending to non-connected peer
    let unknown_peer = LibP2PPeerId::random();
    let result = manager.send_message(&unknown_peer, message).await;
    assert!(matches!(result, Err(NetworkError::ConnectionError(_))));
}

#[tokio::test]
async fn test_peer_metadata_tracking() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    let peer_id = manager.connect_peer("127.0.0.1:8080").await.unwrap();
    
    // Check metadata exists
    let metadata = manager.get_peer_metadata(&peer_id).await;
    assert!(metadata.is_some());
    
    let meta = metadata.unwrap();
    assert_eq!(meta.protocol_version, 1);
    assert_eq!(meta.reputation, 0.0);
    assert_eq!(meta.latency_ms, 0);
}

#[tokio::test]
async fn test_network_stats() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    // Connect some peers
    let peer1 = manager.connect_peer("127.0.0.1:8080").await.unwrap();
    let peer2 = manager.connect_peer("127.0.0.1:8081").await.unwrap();
    
    // Add one to trusted
    manager.add_trusted_peer(peer1).await;
    
    let stats = manager.get_network_stats().await;
    assert_eq!(stats.connected_peers, 2);
    assert_eq!(stats.trusted_peers, 1);
    assert_eq!(stats.blacklisted_peers, 0);
}

#[tokio::test]
async fn test_blacklist_functionality() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    let peer_id = manager.connect_peer("127.0.0.1:8080").await.unwrap();
    
    // Blacklist the peer
    manager.blacklist_peer(peer_id).await;
    
    // Check stats
    let stats = manager.get_network_stats().await;
    assert_eq!(stats.blacklisted_peers, 1);
    assert_eq!(stats.connected_peers, 0); // Should be disconnected
    
    // Try to reconnect - should fail
    let result = manager.connect_peer("127.0.0.1:8080").await;
    assert!(result.is_err());
}

#[tokio::test]
async fn test_maintenance_inactive_peer_cleanup() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    // Connect peers
    let _peer1 = manager.connect_peer("127.0.0.1:8080").await.unwrap();
    let _peer2 = manager.connect_peer("127.0.0.1:8081").await.unwrap();
    
    assert_eq!(manager.get_connected_peers().await.len(), 2);
    
    // Simulate time passing (in real scenario, would need to mock time)
    // For now, just run maintenance
    manager.maintenance().await;
    
    // Peers should still be connected (within timeout)
    assert_eq!(manager.get_connected_peers().await.len(), 2);
}

#[tokio::test]
async fn test_discovery_start() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    // Start discovery should succeed
    assert!(manager.start_discovery().await.is_ok());
}

#[tokio::test]
async fn test_shutdown() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    // Connect some peers
    let _peer1 = manager.connect_peer("127.0.0.1:8080").await.unwrap();
    let _peer2 = manager.connect_peer("127.0.0.1:8081").await.unwrap();
    
    // Shutdown
    assert!(manager.shutdown().await.is_ok());
    
    // All peers should be disconnected
    assert_eq!(manager.get_connected_peers().await.len(), 0);
}

#[tokio::test]
async fn test_concurrent_peer_connections() {
    let mut manager = NetworkManager::new();
    manager.initialize().await.unwrap();
    
    // Spawn multiple concurrent connections
    let mut handles = vec![];
    let manager_arc = std::sync::Arc::new(manager);
    
    for i in 0..10 {
        let mgr = manager_arc.clone();
        let handle = tokio::spawn(async move {
            mgr.connect_peer(&format!("127.0.0.1:{}", 8080 + i)).await
        });
        handles.push(handle);
    }
    
    // Wait for all connections
    let results: Vec<_> = futures::future::join_all(handles).await;
    let successful_connections = results.iter().filter(|r| r.is_ok()).count();
    
    assert!(successful_connections > 0);
}

#[tokio::test]
async fn test_network_event_handling() {
    // Create channel for testing
    let (tx, mut rx) = mpsc::channel(100);
    
    // Send test events
    let peer_id = LibP2PPeerId::random();
    tx.send(NetworkEvent::PeerConnected(peer_id)).await.unwrap();
    tx.send(NetworkEvent::MessageReceived { from: peer_id, data: vec![1, 2, 3] }).await.unwrap();
    tx.send(NetworkEvent::PeerDisconnected(peer_id)).await.unwrap();
    
    // Verify events are received
    assert!(matches!(rx.recv().await, Some(NetworkEvent::PeerConnected(_))));
    assert!(matches!(rx.recv().await, Some(NetworkEvent::MessageReceived { .. })));
    assert!(matches!(rx.recv().await, Some(NetworkEvent::PeerDisconnected(_))));
}

#[cfg(test)]
mod reputation_manager_tests {
    use super::*;
    
    #[test]
    fn test_reputation_scoring() {
        let mut manager = ReputationManager::default();
        let peer_id = LibP2PPeerId::random();
        
        // Initial reputation should be 0
        assert_eq!(manager.get_reputation(&peer_id), 0.0);
        
        // Update reputation
        manager.update_reputation(peer_id, 10.0);
        assert_eq!(manager.get_reputation(&peer_id), 10.0);
        
        // Test clamping
        manager.update_reputation(peer_id, 200.0);
        assert_eq!(manager.get_reputation(&peer_id), 100.0); // Should be clamped to 100
    }
    
    #[test]
    fn test_auto_blacklisting() {
        let mut manager = ReputationManager::default();
        let peer_id = LibP2PPeerId::random();
        
        // Lower reputation below threshold
        manager.update_reputation(peer_id, -60.0);
        assert!(manager.is_blacklisted(&peer_id));
    }
    
    #[test]
    fn test_trusted_peers() {
        let mut manager = ReputationManager::default();
        let peer_id = LibP2PPeerId::random();
        
        manager.add_trusted(peer_id);
        assert!(manager.is_trusted(&peer_id));
        assert_eq!(manager.get_reputation(&peer_id), 75.0);
    }
    
    #[test]
    fn test_blacklist_expiry_cleanup() {
        let mut manager = ReputationManager::default();
        let peer_id = LibP2PPeerId::random();
        
        // Add to blacklist
        manager.update_reputation(peer_id, -100.0);
        assert!(manager.is_blacklisted(&peer_id));
        
        // Cleanup (won't remove recent entries)
        manager.cleanup_expired();
        assert!(manager.is_blacklisted(&peer_id)); // Should still be blacklisted
    }
}