swarm: network simulation for swarm tests (#769)
* cmd/swarm: minor cli flag text adjustments * cmd/swarm, swarm/storage, swarm: fix mingw on windows test issues * cmd/swarm: support for smoke tests on the production swarm cluster * cmd/swarm/swarm-smoke: simplify cluster logic as per suggestion * changed colour of landing page * landing page reacts to enter keypress * swarm/api/http: sticky footer for swarm landing page using flex * swarm/api/http: sticky footer for error pages and fix for multiple choices * swarm: propagate ctx to internal apis (#754) * swarm/simnet: add basic node/service functions * swarm/netsim: add buckets for global state and kademlia health check * swarm/netsim: Use sync.Map as bucket and provide cleanup function for... * swarm, swarm/netsim: adjust SwarmNetworkTest * swarm/netsim: fix tests * swarm: added visualization option to sim net redesign * swarm/netsim: support multiple services per node * swarm/netsim: remove redundant return statement * swarm/netsim: add comments * swarm: shutdown HTTP in Simulation.Close * swarm: sim HTTP server timeout * swarm/netsim: add more simulation methods and peer events examples * swarm/netsim: add WaitKademlia example * swarm/netsim: fix comments * swarm/netsim: terminate peer events goroutines on simulation done * swarm, swarm/netsim: naming updates * swarm/netsim: return not healthy kademlias on WaitTillHealthy * swarm: fix WaitTillHealthy call in testSwarmNetwork * swarm/netsim: allow bucket to have any type for a key * swarm: Added snapshots to new netsim * swarm/netsim: add more tests for bucket * swarm/netsim: move http related things into separate files * swarm/netsim: add AddNodeWithService option * swarm/netsim: add more tests and Start* methods * swarm/netsim: add peer events and kademlia tests * swarm/netsim: fix some tests flakiness * swarm/netsim: improve random nodes selection, fix TestStartStop* tests * swarm/netsim: remove time measurement from TestClose to avoid flakiness * swarm/netsim: builder pattern for netsim HTTP server (#773) * swarm/netsim: add connect related tests * swarm/netsim: add comment for TestPeerEvents * swarm: rename netsim package to network/simulation
This commit is contained in:
Janoš Guljaš
committed by
Anton Evangelatov
Anton Evangelatov
parent
f5b128a5b3
commit
dcaaa3c804
306
swarm/network/simulation/connect_test.go
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306
swarm/network/simulation/connect_test.go
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// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package simulation
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import (
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"testing"
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"github.com/ethereum/go-ethereum/p2p/discover"
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)
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func TestConnectToPivotNode(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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pid, err := sim.AddNode()
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if err != nil {
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t.Fatal(err)
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}
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sim.SetPivotNode(pid)
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id, err := sim.AddNode()
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if err != nil {
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t.Fatal(err)
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}
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if len(sim.Net.Conns) > 0 {
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t.Fatal("no connections should exist after just adding nodes")
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}
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err = sim.ConnectToPivotNode(id)
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if err != nil {
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t.Fatal(err)
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}
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if sim.Net.GetConn(id, pid) == nil {
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t.Error("node did not connect to pivot node")
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}
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}
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func TestConnectToLastNode(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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n := 10
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ids, err := sim.AddNodes(n)
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if err != nil {
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t.Fatal(err)
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}
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id, err := sim.AddNode()
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if err != nil {
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t.Fatal(err)
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}
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if len(sim.Net.Conns) > 0 {
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t.Fatal("no connections should exist after just adding nodes")
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}
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err = sim.ConnectToLastNode(id)
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if err != nil {
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t.Fatal(err)
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}
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for _, i := range ids[:n-2] {
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if sim.Net.GetConn(id, i) != nil {
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t.Error("node connected to the node that is not the last")
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}
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}
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if sim.Net.GetConn(id, ids[n-1]) == nil {
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t.Error("node did not connect to the last node")
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}
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}
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func TestConnectToRandomNode(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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n := 10
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ids, err := sim.AddNodes(n)
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if err != nil {
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t.Fatal(err)
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}
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if len(sim.Net.Conns) > 0 {
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t.Fatal("no connections should exist after just adding nodes")
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}
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err = sim.ConnectToRandomNode(ids[0])
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if err != nil {
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t.Fatal(err)
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}
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var cc int
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for i := 0; i < n; i++ {
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for j := i + 1; j < n; j++ {
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if sim.Net.GetConn(ids[i], ids[j]) != nil {
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cc++
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}
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}
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}
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if cc != 1 {
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t.Errorf("expected one connection, got %v", cc)
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}
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}
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func TestConnectNodesFull(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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ids, err := sim.AddNodes(12)
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if err != nil {
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t.Fatal(err)
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}
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if len(sim.Net.Conns) > 0 {
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t.Fatal("no connections should exist after just adding nodes")
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}
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err = sim.ConnectNodesFull(ids)
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if err != nil {
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t.Fatal(err)
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}
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testFull(t, sim, ids)
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}
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func testFull(t *testing.T, sim *Simulation, ids []discover.NodeID) {
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n := len(ids)
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var cc int
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for i := 0; i < n; i++ {
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for j := i + 1; j < n; j++ {
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if sim.Net.GetConn(ids[i], ids[j]) != nil {
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cc++
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}
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}
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}
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want := n * (n - 1) / 2
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if cc != want {
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t.Errorf("expected %v connection, got %v", want, cc)
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}
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}
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func TestConnectNodesChain(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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ids, err := sim.AddNodes(10)
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if err != nil {
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t.Fatal(err)
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}
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if len(sim.Net.Conns) > 0 {
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t.Fatal("no connections should exist after just adding nodes")
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}
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err = sim.ConnectNodesChain(ids)
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if err != nil {
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t.Fatal(err)
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}
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testChain(t, sim, ids)
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}
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func testChain(t *testing.T, sim *Simulation, ids []discover.NodeID) {
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n := len(ids)
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for i := 0; i < n; i++ {
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for j := i + 1; j < n; j++ {
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c := sim.Net.GetConn(ids[i], ids[j])
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if i == j-1 {
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if c == nil {
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t.Errorf("nodes %v and %v are not connected, but they should be", i, j)
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}
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} else {
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if c != nil {
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t.Errorf("nodes %v and %v are connected, but they should not be", i, j)
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}
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}
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}
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}
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}
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func TestConnectNodesRing(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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ids, err := sim.AddNodes(10)
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if err != nil {
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t.Fatal(err)
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}
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if len(sim.Net.Conns) > 0 {
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t.Fatal("no connections should exist after just adding nodes")
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}
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err = sim.ConnectNodesRing(ids)
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if err != nil {
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t.Fatal(err)
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}
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testRing(t, sim, ids)
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}
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func testRing(t *testing.T, sim *Simulation, ids []discover.NodeID) {
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n := len(ids)
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for i := 0; i < n; i++ {
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for j := i + 1; j < n; j++ {
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c := sim.Net.GetConn(ids[i], ids[j])
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if i == j-1 || (i == 0 && j == n-1) {
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if c == nil {
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t.Errorf("nodes %v and %v are not connected, but they should be", i, j)
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}
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} else {
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if c != nil {
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t.Errorf("nodes %v and %v are connected, but they should not be", i, j)
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}
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}
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}
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}
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}
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func TestConnectToNodesStar(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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ids, err := sim.AddNodes(10)
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if err != nil {
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t.Fatal(err)
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}
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if len(sim.Net.Conns) > 0 {
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t.Fatal("no connections should exist after just adding nodes")
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}
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centerIndex := 2
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err = sim.ConnectNodesStar(ids[centerIndex], ids)
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if err != nil {
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t.Fatal(err)
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}
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testStar(t, sim, ids, centerIndex)
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}
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func testStar(t *testing.T, sim *Simulation, ids []discover.NodeID, centerIndex int) {
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n := len(ids)
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for i := 0; i < n; i++ {
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for j := i + 1; j < n; j++ {
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c := sim.Net.GetConn(ids[i], ids[j])
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if i == centerIndex || j == centerIndex {
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if c == nil {
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t.Errorf("nodes %v and %v are not connected, but they should be", i, j)
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}
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} else {
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if c != nil {
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t.Errorf("nodes %v and %v are connected, but they should not be", i, j)
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}
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}
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}
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}
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}
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func TestConnectToNodesStarPivot(t *testing.T) {
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sim := New(noopServiceFuncMap)
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defer sim.Close()
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ids, err := sim.AddNodes(10)
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if err != nil {
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t.Fatal(err)
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}
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if len(sim.Net.Conns) > 0 {
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t.Fatal("no connections should exist after just adding nodes")
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}
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pivotIndex := 4
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sim.SetPivotNode(ids[pivotIndex])
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err = sim.ConnectNodesStarPivot(ids)
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if err != nil {
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t.Fatal(err)
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}
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testStar(t, sim, ids, pivotIndex)
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}
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