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p2p/simulation: move connection methods from swarm/network/simulation…
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// Copyright 2018 The go-ethereum Authors | ||
// This file is part of the go-ethereum library. | ||
// | ||
// The go-ethereum library is free software: you can redistribute it and/or modify | ||
// it under the terms of the GNU Lesser General Public License as published by | ||
// the Free Software Foundation, either version 3 of the License, or | ||
// (at your option) any later version. | ||
// | ||
// The go-ethereum library is distributed in the hope that it will be useful, | ||
// but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
// GNU Lesser General Public License for more details. | ||
// | ||
// You should have received a copy of the GNU Lesser General Public License | ||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. | ||
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package simulations | ||
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import ( | ||
"testing" | ||
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"github.com/ethereum/go-ethereum/node" | ||
"github.com/ethereum/go-ethereum/p2p/enode" | ||
"github.com/ethereum/go-ethereum/p2p/simulations/adapters" | ||
) | ||
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func newTestNetwork(t *testing.T, nodeCount int) (*Network, []enode.ID) { | ||
adapter := adapters.NewSimAdapter(adapters.Services{ | ||
"noopwoop": func(ctx *adapters.ServiceContext) (node.Service, error) { | ||
return NewNoopService(nil), nil | ||
}, | ||
}) | ||
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// create network | ||
network := NewNetwork(adapter, &NetworkConfig{ | ||
DefaultService: "noopwoop", | ||
}) | ||
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// create and start nodes | ||
ids := make([]enode.ID, nodeCount) | ||
for i := range ids { | ||
conf := adapters.RandomNodeConfig() | ||
node, err := network.NewNodeWithConfig(conf) | ||
if err != nil { | ||
t.Fatalf("error creating node: %s", err) | ||
} | ||
if err := network.Start(node.ID()); err != nil { | ||
t.Fatalf("error starting node: %s", err) | ||
} | ||
ids[i] = node.ID() | ||
} | ||
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if len(network.Conns) > 0 { | ||
t.Fatal("no connections should exist after just adding nodes") | ||
} | ||
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return network, ids | ||
} | ||
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func TestConnectToPivotNode(t *testing.T) { | ||
net, ids := newTestNetwork(t, 2) | ||
defer net.Shutdown() | ||
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pivot := ids[0] | ||
net.SetPivotNode(pivot) | ||
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other := ids[1] | ||
err := net.ConnectToPivotNode(other) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
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if net.GetConn(pivot, other) == nil { | ||
t.Error("pivot and the other node are not connected") | ||
} | ||
} | ||
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func TestConnectToLastNode(t *testing.T) { | ||
net, ids := newTestNetwork(t, 10) | ||
defer net.Shutdown() | ||
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first := ids[0] | ||
if err := net.ConnectToLastNode(first); err != nil { | ||
t.Fatal(err) | ||
} | ||
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last := ids[len(ids)-1] | ||
for i, id := range ids { | ||
if id == first || id == last { | ||
continue | ||
} | ||
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if net.GetConn(first, id) != nil { | ||
t.Errorf("connection must not exist with node(ind: %v, id: %v)", i, id) | ||
} | ||
} | ||
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if net.GetConn(first, last) == nil { | ||
t.Error("first and last node must be connected") | ||
} | ||
} | ||
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func TestConnectToRandomNode(t *testing.T) { | ||
net, ids := newTestNetwork(t, 10) | ||
defer net.Shutdown() | ||
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err := net.ConnectToRandomNode(ids[0]) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
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var cc int | ||
for i, a := range ids { | ||
for _, b := range ids[i:] { | ||
if net.GetConn(a, b) != nil { | ||
cc++ | ||
} | ||
} | ||
} | ||
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if cc != 1 { | ||
t.Errorf("expected one connection, got %v", cc) | ||
} | ||
} | ||
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func TestConnectNodesFull(t *testing.T) { | ||
net, ids := newTestNetwork(t, 12) | ||
defer net.Shutdown() | ||
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err := net.ConnectNodesFull(ids) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
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VerifyFull(t, net, ids) | ||
} | ||
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func TestConnectNodesChain(t *testing.T) { | ||
net, ids := newTestNetwork(t, 10) | ||
defer net.Shutdown() | ||
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err := net.ConnectNodesChain(ids) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
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VerifyChain(t, net, ids) | ||
} | ||
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func TestConnectNodesRing(t *testing.T) { | ||
net, ids := newTestNetwork(t, 10) | ||
defer net.Shutdown() | ||
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err := net.ConnectNodesRing(ids) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
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VerifyRing(t, net, ids) | ||
} | ||
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func TestConnectNodesStar(t *testing.T) { | ||
net, ids := newTestNetwork(t, 10) | ||
defer net.Shutdown() | ||
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pivotIndex := 2 | ||
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err := net.ConnectNodesStar(ids[pivotIndex], ids) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
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VerifyStar(t, net, ids, pivotIndex) | ||
} | ||
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func TestConnectNodesStarPivot(t *testing.T) { | ||
net, ids := newTestNetwork(t, 10) | ||
defer net.Shutdown() | ||
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pivotIndex := 4 | ||
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net.SetPivotNode(ids[pivotIndex]) | ||
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err := net.ConnectNodesStarPivot(ids) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
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VerifyStar(t, net, ids, pivotIndex) | ||
} |
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