update test

Author: joostjager

lightning/src/routing/scoring.rs

@@ -3871,35 +3871,47 @@ mod tests {
 
 		let mut combined_scorer = CombinedScorer::new(scorer);
 
+		// Verify that the combined_scorer has the correct liquidity range after a failed 600 msat payment.
+		let liquidity_range = combined_scorer.scorer.estimated_channel_liquidity_range(42, &target_node_id());
+		assert_eq!(liquidity_range.unwrap(), (0, 600));
+
 		let source = source_node_id();
 		let usage = ChannelUsage {
 			amount_msat: 750,
 			inflight_htlc_msat: 0,
 			effective_capacity: EffectiveCapacity::Total { capacity_msat: 1_000, htlc_maximum_msat: 1_000 },
 		};
-		let network_graph = network_graph.read_only();
-		let channel = network_graph.channel(42).unwrap();
-		let (info, _) = channel.as_directed_from(&source).unwrap();
-		let candidate = CandidateRouteHop::PublicHop(PublicHopCandidate {
-			info,
-			short_channel_id: 42,
-		});
-		let penalty = combined_scorer.channel_penalty_msat(&candidate, usage, &params);
 
-		let mut external_liquidity = ChannelLiquidity::new(Duration::ZERO);
-		let logger_rc = Rc::new(&logger);	// Why necessary and not above for the network graph?
-		external_liquidity.as_directed_mut(&source_node_id(), &target_node_id(), 1_000).
-			successful(1000, Duration::ZERO, format_args!("test channel"), logger_rc.as_ref());
-
-		let mut external_scores = ChannelLiquidities::new();
-	
-		external_scores.insert(42, external_liquidity);
-		combined_scorer.merge(external_scores, Duration::ZERO);
+		{
+			let network_graph = network_graph.read_only();
+			let channel = network_graph.channel(42).unwrap();
+			let (info, _) = channel.as_directed_from(&source).unwrap();
+			let candidate = CandidateRouteHop::PublicHop(PublicHopCandidate {
+				info,
+				short_channel_id: 42,
+			});
+			
+			let penalty = combined_scorer.channel_penalty_msat(&candidate, usage, &params);
+			
+			let mut external_liquidity = ChannelLiquidity::new(Duration::ZERO);
+			let logger_rc = Rc::new(&logger);	// Why necessary and not above for the network graph?
+			external_liquidity.as_directed_mut(&source_node_id(), &target_node_id(), 1_000).
+				successful(1000, Duration::ZERO, format_args!("test channel"), logger_rc.as_ref());
 
-		let penalty_after_merge = combined_scorer.channel_penalty_msat(&candidate, usage, &params);
+			let mut external_scores = ChannelLiquidities::new();
 
-		// Since the external source observed a successful payment, the penalty should be lower after the merge.
-		assert!(penalty_after_merge < penalty);
+			external_scores.insert(42, external_liquidity);
+			combined_scorer.merge(external_scores, Duration::ZERO);
+
+			let penalty_after_merge = combined_scorer.channel_penalty_msat(&candidate, usage, &params);
+			
+			// Since the external source observed a successful payment, the penalty should be lower after the merge.
+			assert!(penalty_after_merge < penalty);
+		}
+
+		// Verify that after the merge with a successful payment, the liquidity range is increased.
+		let liquidity_range = combined_scorer.scorer.estimated_channel_liquidity_range(42, &target_node_id());
+		assert_eq!(liquidity_range.unwrap(), (0, 300));
 	}
 }