plugeth/swarm/network/stream/syncer_test.go

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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/>.
package stream
import (
"context"
"errors"
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"fmt"
"io/ioutil"
"math"
"os"
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"sync"
"sync/atomic"
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"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/node"
all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
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"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
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"github.com/ethereum/go-ethereum/swarm/log"
"github.com/ethereum/go-ethereum/swarm/network"
"github.com/ethereum/go-ethereum/swarm/network/simulation"
"github.com/ethereum/go-ethereum/swarm/state"
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"github.com/ethereum/go-ethereum/swarm/storage"
"github.com/ethereum/go-ethereum/swarm/storage/mock"
mockmem "github.com/ethereum/go-ethereum/swarm/storage/mock/mem"
"github.com/ethereum/go-ethereum/swarm/testutil"
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)
const dataChunkCount = 200
func TestSyncerSimulation(t *testing.T) {
testSyncBetweenNodes(t, 2, dataChunkCount, true, 1)
testSyncBetweenNodes(t, 4, dataChunkCount, true, 1)
testSyncBetweenNodes(t, 8, dataChunkCount, true, 1)
testSyncBetweenNodes(t, 16, dataChunkCount, true, 1)
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}
func createMockStore(globalStore mock.GlobalStorer, id enode.ID, addr *network.BzzAddr) (lstore storage.ChunkStore, datadir string, err error) {
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address := common.BytesToAddress(id.Bytes())
mockStore := globalStore.NewNodeStore(address)
params := storage.NewDefaultLocalStoreParams()
datadir, err = ioutil.TempDir("", "localMockStore-"+id.TerminalString())
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if err != nil {
return nil, "", err
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}
params.Init(datadir)
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params.BaseKey = addr.Over()
lstore, err = storage.NewLocalStore(params, mockStore)
if err != nil {
return nil, "", err
}
return lstore, datadir, nil
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}
func testSyncBetweenNodes(t *testing.T, nodes, chunkCount int, skipCheck bool, po uint8) {
sim := simulation.New(map[string]simulation.ServiceFunc{
"streamer": func(ctx *adapters.ServiceContext, bucket *sync.Map) (s node.Service, cleanup func(), err error) {
var store storage.ChunkStore
var datadir string
all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
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node := ctx.Config.Node()
addr := network.NewAddr(node)
//hack to put addresses in same space
addr.OAddr[0] = byte(0)
if *useMockStore {
store, datadir, err = createMockStore(mockmem.NewGlobalStore(), node.ID(), addr)
} else {
all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
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store, datadir, err = createTestLocalStorageForID(node.ID(), addr)
}
if err != nil {
return nil, nil, err
}
bucket.Store(bucketKeyStore, store)
cleanup = func() {
store.Close()
os.RemoveAll(datadir)
}
localStore := store.(*storage.LocalStore)
netStore, err := storage.NewNetStore(localStore, nil)
if err != nil {
return nil, nil, err
}
bucket.Store(bucketKeyDB, netStore)
kad := network.NewKademlia(addr.Over(), network.NewKadParams())
delivery := NewDelivery(kad, netStore)
netStore.NewNetFetcherFunc = network.NewFetcherFactory(delivery.RequestFromPeers, true).New
bucket.Store(bucketKeyDelivery, delivery)
all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
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r := NewRegistry(addr.ID(), delivery, netStore, state.NewInmemoryStore(), &RegistryOptions{
Retrieval: RetrievalDisabled,
Syncing: SyncingAutoSubscribe,
SkipCheck: skipCheck,
}, nil)
fileStore := storage.NewFileStore(netStore, storage.NewFileStoreParams())
bucket.Store(bucketKeyFileStore, fileStore)
return r, cleanup, nil
},
})
defer sim.Close()
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// create context for simulation run
timeout := 30 * time.Second
ctx, cancel := context.WithTimeout(context.Background(), timeout)
// defer cancel should come before defer simulation teardown
defer cancel()
_, err := sim.AddNodesAndConnectChain(nodes)
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if err != nil {
t.Fatal(err)
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}
result := sim.Run(ctx, func(ctx context.Context, sim *simulation.Simulation) (err error) {
nodeIDs := sim.UpNodeIDs()
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all: new p2p node representation (#17643) Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature. * p2p/discover: port to p2p/enode This ports the discovery code to the new node representation in p2p/enode. The wire protocol is unchanged, this can be considered a refactoring change. The Kademlia table can now deal with nodes using an arbitrary identity scheme. This requires a few incompatible API changes: - Table.Lookup is not available anymore. It used to take a public key as argument because v4 protocol requires one. Its replacement is LookupRandom. - Table.Resolve takes *enode.Node instead of NodeID. This is also for v4 protocol compatibility because nodes cannot be looked up by ID alone. - Types Node and NodeID are gone. Further commits in the series will be fixes all over the the codebase to deal with those removals. * p2p: port to p2p/enode and discovery changes This adapts package p2p to the changes in p2p/discover. All uses of discover.Node and discover.NodeID are replaced by their equivalents from p2p/enode. New API is added to retrieve the enode.Node instance of a peer. The behavior of Server.Self with discovery disabled is improved. It now tries much harder to report a working IP address, falling back to 127.0.0.1 if no suitable address can be determined through other means. These changes were needed for tests of other packages later in the series. * p2p/simulations, p2p/testing: port to p2p/enode No surprises here, mostly replacements of discover.Node, discover.NodeID with their new equivalents. The 'interesting' API changes are: - testing.ProtocolSession tracks complete nodes, not just their IDs. - adapters.NodeConfig has a new method to create a complete node. These changes were needed to make swarm tests work. Note that the NodeID change makes the code incompatible with old simulation snapshots. * whisper/whisperv5, whisper/whisperv6: port to p2p/enode This port was easy because whisper uses []byte for node IDs and URL strings in the API. * eth: port to p2p/enode Again, easy to port because eth uses strings for node IDs and doesn't care about node information in any way. * les: port to p2p/enode Apart from replacing discover.NodeID with enode.ID, most changes are in the server pool code. It now deals with complete nodes instead of (Pubkey, IP, Port) triples. The database format is unchanged for now, but we should probably change it to use the node database later. * node: port to p2p/enode This change simply replaces discover.Node and discover.NodeID with their new equivalents. * swarm/network: port to p2p/enode Swarm has its own node address representation, BzzAddr, containing both an overlay address (the hash of a secp256k1 public key) and an underlay address (enode:// URL). There are no changes to the BzzAddr format in this commit, but certain operations such as creating a BzzAddr from a node ID are now impossible because node IDs aren't public keys anymore. Most swarm-related changes in the series remove uses of NewAddrFromNodeID, replacing it with NewAddr which takes a complete node as argument. ToOverlayAddr is removed because we can just use the node ID directly.
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nodeIndex := make(map[enode.ID]int)
for i, id := range nodeIDs {
nodeIndex[id] = i
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}
disconnections := sim.PeerEvents(
context.Background(),
sim.NodeIDs(),
simulation.NewPeerEventsFilter().Drop(),
)
var disconnected atomic.Value
go func() {
for d := range disconnections {
if d.Error != nil {
log.Error("peer drop", "node", d.NodeID, "peer", d.PeerID)
disconnected.Store(true)
}
}
}()
defer func() {
if err != nil {
if yes, ok := disconnected.Load().(bool); ok && yes {
err = errors.New("disconnect events received")
}
}
}()
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// each node Subscribes to each other's swarmChunkServerStreamName
for j := 0; j < nodes-1; j++ {
id := nodeIDs[j]
client, err := sim.Net.GetNode(id).Client()
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if err != nil {
t.Fatal(err)
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}
sid := nodeIDs[j+1]
client.CallContext(ctx, nil, "stream_subscribeStream", sid, NewStream("SYNC", FormatSyncBinKey(1), false), NewRange(0, 0), Top)
if err != nil {
return err
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}
if j > 0 || nodes == 2 {
item, ok := sim.NodeItem(nodeIDs[j], bucketKeyFileStore)
if !ok {
return fmt.Errorf("No filestore")
}
fileStore := item.(*storage.FileStore)
size := chunkCount * chunkSize
_, wait, err := fileStore.Store(ctx, testutil.RandomReader(j, size), int64(size), false)
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if err != nil {
t.Fatal(err.Error())
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}
wait(ctx)
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}
}
// here we distribute chunks of a random file into stores 1...nodes
if _, err := sim.WaitTillHealthy(ctx); err != nil {
return err
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}
// collect hashes in po 1 bin for each node
hashes := make([][]storage.Address, nodes)
totalHashes := 0
hashCounts := make([]int, nodes)
for i := nodes - 1; i >= 0; i-- {
if i < nodes-1 {
hashCounts[i] = hashCounts[i+1]
}
item, ok := sim.NodeItem(nodeIDs[i], bucketKeyDB)
if !ok {
return fmt.Errorf("No DB")
}
netStore := item.(*storage.NetStore)
netStore.Iterator(0, math.MaxUint64, po, func(addr storage.Address, index uint64) bool {
hashes[i] = append(hashes[i], addr)
totalHashes++
hashCounts[i]++
return true
})
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}
var total, found int
for _, node := range nodeIDs {
i := nodeIndex[node]
for j := i; j < nodes; j++ {
total += len(hashes[j])
for _, key := range hashes[j] {
item, ok := sim.NodeItem(nodeIDs[j], bucketKeyDB)
if !ok {
return fmt.Errorf("No DB")
}
db := item.(*storage.NetStore)
_, err := db.Get(ctx, key)
if err == nil {
found++
}
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}
}
log.Debug("sync check", "node", node, "index", i, "bin", po, "found", found, "total", total)
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}
if total == found && total > 0 {
return nil
}
return fmt.Errorf("Total not equallying found: total is %d", total)
})
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if result.Error != nil {
t.Fatal(result.Error)
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}
}
//TestSameVersionID just checks that if the version is not changed,
//then streamer peers see each other
func TestSameVersionID(t *testing.T) {
//test version ID
v := uint(1)
sim := simulation.New(map[string]simulation.ServiceFunc{
"streamer": func(ctx *adapters.ServiceContext, bucket *sync.Map) (s node.Service, cleanup func(), err error) {
var store storage.ChunkStore
var datadir string
node := ctx.Config.Node()
addr := network.NewAddr(node)
store, datadir, err = createTestLocalStorageForID(node.ID(), addr)
if err != nil {
return nil, nil, err
}
bucket.Store(bucketKeyStore, store)
cleanup = func() {
store.Close()
os.RemoveAll(datadir)
}
localStore := store.(*storage.LocalStore)
netStore, err := storage.NewNetStore(localStore, nil)
if err != nil {
return nil, nil, err
}
bucket.Store(bucketKeyDB, netStore)
kad := network.NewKademlia(addr.Over(), network.NewKadParams())
delivery := NewDelivery(kad, netStore)
netStore.NewNetFetcherFunc = network.NewFetcherFactory(delivery.RequestFromPeers, true).New
bucket.Store(bucketKeyDelivery, delivery)
r := NewRegistry(addr.ID(), delivery, netStore, state.NewInmemoryStore(), &RegistryOptions{
Retrieval: RetrievalDisabled,
Syncing: SyncingAutoSubscribe,
}, nil)
//assign to each node the same version ID
r.spec.Version = v
bucket.Store(bucketKeyRegistry, r)
return r, cleanup, nil
},
})
defer sim.Close()
//connect just two nodes
log.Info("Adding nodes to simulation")
_, err := sim.AddNodesAndConnectChain(2)
if err != nil {
t.Fatal(err)
}
log.Info("Starting simulation")
ctx := context.Background()
//make sure they have time to connect
time.Sleep(200 * time.Millisecond)
result := sim.Run(ctx, func(ctx context.Context, sim *simulation.Simulation) error {
//get the pivot node's filestore
nodes := sim.UpNodeIDs()
item, ok := sim.NodeItem(nodes[0], bucketKeyRegistry)
if !ok {
return fmt.Errorf("No filestore")
}
registry := item.(*Registry)
//the peers should connect, thus getting the peer should not return nil
if registry.getPeer(nodes[1]) == nil {
t.Fatal("Expected the peer to not be nil, but it is")
}
return nil
})
if result.Error != nil {
t.Fatal(result.Error)
}
log.Info("Simulation ended")
}
//TestDifferentVersionID proves that if the streamer protocol version doesn't match,
//then the peers are not connected at streamer level
func TestDifferentVersionID(t *testing.T) {
//create a variable to hold the version ID
v := uint(0)
sim := simulation.New(map[string]simulation.ServiceFunc{
"streamer": func(ctx *adapters.ServiceContext, bucket *sync.Map) (s node.Service, cleanup func(), err error) {
var store storage.ChunkStore
var datadir string
node := ctx.Config.Node()
addr := network.NewAddr(node)
store, datadir, err = createTestLocalStorageForID(node.ID(), addr)
if err != nil {
return nil, nil, err
}
bucket.Store(bucketKeyStore, store)
cleanup = func() {
store.Close()
os.RemoveAll(datadir)
}
localStore := store.(*storage.LocalStore)
netStore, err := storage.NewNetStore(localStore, nil)
if err != nil {
return nil, nil, err
}
bucket.Store(bucketKeyDB, netStore)
kad := network.NewKademlia(addr.Over(), network.NewKadParams())
delivery := NewDelivery(kad, netStore)
netStore.NewNetFetcherFunc = network.NewFetcherFactory(delivery.RequestFromPeers, true).New
bucket.Store(bucketKeyDelivery, delivery)
r := NewRegistry(addr.ID(), delivery, netStore, state.NewInmemoryStore(), &RegistryOptions{
Retrieval: RetrievalDisabled,
Syncing: SyncingAutoSubscribe,
}, nil)
//increase the version ID for each node
v++
r.spec.Version = v
bucket.Store(bucketKeyRegistry, r)
return r, cleanup, nil
},
})
defer sim.Close()
//connect the nodes
log.Info("Adding nodes to simulation")
_, err := sim.AddNodesAndConnectChain(2)
if err != nil {
t.Fatal(err)
}
log.Info("Starting simulation")
ctx := context.Background()
//make sure they have time to connect
time.Sleep(200 * time.Millisecond)
result := sim.Run(ctx, func(ctx context.Context, sim *simulation.Simulation) error {
//get the pivot node's filestore
nodes := sim.UpNodeIDs()
item, ok := sim.NodeItem(nodes[0], bucketKeyRegistry)
if !ok {
return fmt.Errorf("No filestore")
}
registry := item.(*Registry)
//getting the other peer should fail due to the different version numbers
if registry.getPeer(nodes[1]) != nil {
t.Fatal("Expected the peer to be nil, but it is not")
}
return nil
})
if result.Error != nil {
t.Fatal(result.Error)
}
log.Info("Simulation ended")
}