p2p/simulation: move connection methods from swarm/network/simulation (#18323)

swarm/network/stream/delivery_test.go

@@ -505,7 +505,8 @@ func testDeliveryFromNodes(t *testing.T, nodes, conns, chunkCount int, skipCheck
 	result := sim.Run(ctx, func(ctx context.Context, sim *simulation.Simulation) error {
 		nodeIDs := sim.UpNodeIDs()
 		//determine the pivot node to be the first node of the simulation
-		sim.SetPivotNode(nodeIDs[0])
+		pivot := nodeIDs[0]
+
 		//distribute chunks of a random file into Stores of nodes 1 to nodes
 		//we will do this by creating a file store with an underlying round-robin store:
 		//the file store will create a hash for the uploaded file, but every chunk will be
@@ -519,7 +520,7 @@ func testDeliveryFromNodes(t *testing.T, nodes, conns, chunkCount int, skipCheck
 		//...iterate the buckets...
 		for id, bucketVal := range lStores {
 			//...and remove the one which is the pivot node
-			if id == *sim.PivotNodeID() {
+			if id == pivot {
 				continue
 			}
 			//the other ones are added to the array...
@@ -547,7 +548,7 @@ func testDeliveryFromNodes(t *testing.T, nodes, conns, chunkCount int, skipCheck
 		}
 
 		//get the pivot node's filestore
-		item, ok := sim.NodeItem(*sim.PivotNodeID(), bucketKeyFileStore)
+		item, ok := sim.NodeItem(pivot, bucketKeyFileStore)
 		if !ok {
 			return fmt.Errorf("No filestore")
 		}

swarm/network/stream/snapshot_retrieval_test.go

@@ -278,13 +278,13 @@ func runRetrievalTest(chunkCount int, nodeCount int) error {
 		}
 
 		//this is the node selected for upload
-		node := sim.RandomUpNode()
-		item, ok := sim.NodeItem(node.ID, bucketKeyStore)
+		node := sim.Net.GetRandomUpNode()
+		item, ok := sim.NodeItem(node.ID(), bucketKeyStore)
 		if !ok {
 			return fmt.Errorf("No localstore")
 		}
 		lstore := item.(*storage.LocalStore)
-		conf.hashes, err = uploadFileToSingleNodeStore(node.ID, chunkCount, lstore)
+		conf.hashes, err = uploadFileToSingleNodeStore(node.ID(), chunkCount, lstore)
 		if err != nil {
 			return err
 		}

swarm/network/stream/snapshot_sync_test.go

@@ -248,20 +248,20 @@ func runSim(conf *synctestConfig, ctx context.Context, sim *simulation.Simulatio
 
 		//get the node at that index
 		//this is the node selected for upload
-		node := sim.RandomUpNode()
-		item, ok := sim.NodeItem(node.ID, bucketKeyStore)
+		node := sim.Net.GetRandomUpNode()
+		item, ok := sim.NodeItem(node.ID(), bucketKeyStore)
 		if !ok {
 			return fmt.Errorf("No localstore")
 		}
 		lstore := item.(*storage.LocalStore)
-		hashes, err := uploadFileToSingleNodeStore(node.ID, chunkCount, lstore)
+		hashes, err := uploadFileToSingleNodeStore(node.ID(), chunkCount, lstore)
 		if err != nil {
 			return err
 		}
 		for _, h := range hashes {
 			evt := &simulations.Event{
 				Type: EventTypeChunkCreated,
-				Node: sim.Net.GetNode(node.ID),
+				Node: sim.Net.GetNode(node.ID()),
 				Data: h.String(),
 			}
 			sim.Net.Events().Send(evt)
@@ -453,13 +453,13 @@ func testSyncingViaDirectSubscribe(t *testing.T, chunkCount int, nodeCount int)
 			}
 		}
 		//select a random node for upload
-		node := sim.RandomUpNode()
-		item, ok := sim.NodeItem(node.ID, bucketKeyStore)
+		node := sim.Net.GetRandomUpNode()
+		item, ok := sim.NodeItem(node.ID(), bucketKeyStore)
 		if !ok {
 			return fmt.Errorf("No localstore")
 		}
 		lstore := item.(*storage.LocalStore)
-		hashes, err := uploadFileToSingleNodeStore(node.ID, chunkCount, lstore)
+		hashes, err := uploadFileToSingleNodeStore(node.ID(), chunkCount, lstore)
 		if err != nil {
 			return err
 		}

swarm/network/stream/visualized_snapshot_sync_sim_test.go

@@ -103,7 +103,7 @@ func TestNonExistingHashesWithServer(t *testing.T) {
 
 	result := sim.Run(ctx, func(ctx context.Context, sim *simulation.Simulation) error {
 		//check on the node's FileStore (netstore)
-		id := sim.RandomUpNode().ID
+		id := sim.Net.GetRandomUpNode().ID()
 		item, ok := sim.NodeItem(id, bucketKeyFileStore)
 		if !ok {
 			t.Fatalf("No filestore")