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-rw-r--r--swarm/network/stream/snapshot_sync_test.go719
1 files changed, 719 insertions, 0 deletions
diff --git a/swarm/network/stream/snapshot_sync_test.go b/swarm/network/stream/snapshot_sync_test.go
new file mode 100644
index 000000000..ff1c39319
--- /dev/null
+++ b/swarm/network/stream/snapshot_sync_test.go
@@ -0,0 +1,719 @@
+// 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"
+ crand "crypto/rand"
+ "encoding/json"
+ "flag"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "math/rand"
+ "os"
+ "sync"
+ "testing"
+ "time"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/log"
+ "github.com/ethereum/go-ethereum/p2p"
+ "github.com/ethereum/go-ethereum/p2p/discover"
+ "github.com/ethereum/go-ethereum/p2p/simulations"
+ "github.com/ethereum/go-ethereum/p2p/simulations/adapters"
+ "github.com/ethereum/go-ethereum/rpc"
+ "github.com/ethereum/go-ethereum/swarm/network"
+ streamTesting "github.com/ethereum/go-ethereum/swarm/network/stream/testing"
+ "github.com/ethereum/go-ethereum/swarm/pot"
+ "github.com/ethereum/go-ethereum/swarm/storage"
+)
+
+const testMinProxBinSize = 2
+const MaxTimeout = 600
+
+var (
+ pof = pot.DefaultPof(256)
+
+ conf *synctestConfig
+ ids []discover.NodeID
+ datadirs map[discover.NodeID]string
+ ppmap map[string]*network.PeerPot
+
+ live bool
+ history bool
+
+ longrunning = flag.Bool("longrunning", false, "do run long-running tests")
+)
+
+type synctestConfig struct {
+ addrs [][]byte
+ hashes []storage.Address
+ idToChunksMap map[discover.NodeID][]int
+ chunksToNodesMap map[string][]int
+ addrToIdMap map[string]discover.NodeID
+}
+
+func init() {
+ rand.Seed(time.Now().Unix())
+}
+
+//common_test needs to initialize the test in a init() func
+//in order for adapters to register the NewStreamerService;
+//this service is dependent on some global variables
+//we thus need to initialize first as init() as well.
+func initSyncTest() {
+ //assign the toAddr func so NewStreamerService can build the addr
+ toAddr = func(id discover.NodeID) *network.BzzAddr {
+ addr := network.NewAddrFromNodeID(id)
+ return addr
+ }
+ //global func to create local store
+ if *useMockStore {
+ createStoreFunc = createMockStore
+ } else {
+ createStoreFunc = createTestLocalStorageForId
+ }
+ //local stores
+ stores = make(map[discover.NodeID]storage.ChunkStore)
+ //data directories for each node and store
+ datadirs = make(map[discover.NodeID]string)
+ //deliveries for each node
+ deliveries = make(map[discover.NodeID]*Delivery)
+ //registries, map of discover.NodeID to its streamer
+ registries = make(map[discover.NodeID]*TestRegistry)
+ //not needed for this test but required from common_test for NewStreamService
+ waitPeerErrC = make(chan error)
+ //also not needed for this test but required for NewStreamService
+ peerCount = func(id discover.NodeID) int {
+ if ids[0] == id || ids[len(ids)-1] == id {
+ return 1
+ }
+ return 2
+ }
+ if *useMockStore {
+ createGlobalStore()
+ }
+}
+
+//This test is a syncing test for nodes.
+//One node is randomly selected to be the pivot node.
+//A configurable number of chunks and nodes can be
+//provided to the test, the number of chunks is uploaded
+//to the pivot node, and we check that nodes get the chunks
+//they are expected to store based on the syncing protocol.
+//Number of chunks and nodes can be provided via commandline too.
+func TestSyncing(t *testing.T) {
+ //if nodes/chunks have been provided via commandline,
+ //run the tests with these values
+ if *nodes != 0 && *chunks != 0 {
+ log.Info(fmt.Sprintf("Running test with %d chunks and %d nodes...", *chunks, *nodes))
+ testSyncing(t, *chunks, *nodes)
+ } else {
+ var nodeCnt []int
+ var chnkCnt []int
+ //if the `longrunning` flag has been provided
+ //run more test combinations
+ if *longrunning {
+ chnkCnt = []int{1, 8, 32, 256, 1024}
+ nodeCnt = []int{16, 32, 64, 128, 256}
+ } else {
+ //default test
+ chnkCnt = []int{4, 32}
+ nodeCnt = []int{32, 16}
+ }
+ for _, chnk := range chnkCnt {
+ for _, n := range nodeCnt {
+ log.Info(fmt.Sprintf("Long running test with %d chunks and %d nodes...", chnk, n))
+ testSyncing(t, chnk, n)
+ }
+ }
+ }
+}
+
+//Do run the tests
+//Every test runs 3 times, a live, a history, and a live AND history
+func testSyncing(t *testing.T, chunkCount int, nodeCount int) {
+ //test live and NO history
+ log.Info("Testing live and no history")
+ live = true
+ history = false
+ err := runSyncTest(chunkCount, nodeCount, live, history)
+ if err != nil {
+ t.Fatal(err)
+ }
+ //test history only
+ log.Info("Testing history only")
+ live = false
+ history = true
+ err = runSyncTest(chunkCount, nodeCount, live, history)
+ if err != nil {
+ t.Fatal(err)
+ }
+ //finally test live and history
+ log.Info("Testing live and history")
+ live = true
+ err = runSyncTest(chunkCount, nodeCount, live, history)
+ if err != nil {
+ t.Fatal(err)
+ }
+}
+
+/*
+The test generates the given number of chunks
+
+The upload is done by dependency to the global
+`live` and `history` variables;
+
+If `live` is set, first stream subscriptions are established, then
+upload to a random node.
+
+If `history` is enabled, first upload then build up subscriptions.
+
+For every chunk generated, the nearest node addresses
+are identified, we verify that the nodes closer to the
+chunk addresses actually do have the chunks in their local stores.
+
+The test loads a snapshot file to construct the swarm network,
+assuming that the snapshot file identifies a healthy
+kademlia network. The snapshot should have 'streamer' in its service list.
+
+For every test run, a series of three tests will be executed:
+- a LIVE test first, where first subscriptions are established,
+ then a file (random chunks) is uploaded
+- a HISTORY test, where the file is uploaded first, and then
+ the subscriptions are established
+- a crude LIVE AND HISTORY test last, where (different) chunks
+ are uploaded twice, once before and once after subscriptions
+*/
+func runSyncTest(chunkCount int, nodeCount int, live bool, history bool) error {
+ initSyncTest()
+ //the ids of the snapshot nodes, initiate only now as we need nodeCount
+ ids = make([]discover.NodeID, nodeCount)
+ //initialize the test struct
+ conf = &synctestConfig{}
+ //map of discover ID to indexes of chunks expected at that ID
+ conf.idToChunksMap = make(map[discover.NodeID][]int)
+ //map of overlay address to discover ID
+ conf.addrToIdMap = make(map[string]discover.NodeID)
+ //array where the generated chunk hashes will be stored
+ conf.hashes = make([]storage.Address, 0)
+ //channel to trigger node checks in the simulation
+ trigger := make(chan discover.NodeID)
+ //channel to check for disconnection errors
+ disconnectC := make(chan error)
+ //channel to close disconnection watcher routine
+ quitC := make(chan struct{})
+
+ //load nodes from the snapshot file
+ net, err := initNetWithSnapshot(nodeCount)
+ if err != nil {
+ return err
+ }
+ var rpcSubscriptionsWg sync.WaitGroup
+ //do cleanup after test is terminated
+ defer func() {
+ // close quitC channel to signall all goroutines to clanup
+ // before calling simulation network shutdown.
+ close(quitC)
+ //wait for all rpc subscriptions to unsubscribe
+ rpcSubscriptionsWg.Wait()
+ //shutdown the snapshot network
+ net.Shutdown()
+ //after the test, clean up local stores initialized with createLocalStoreForId
+ localStoreCleanup()
+ //finally clear all data directories
+ datadirsCleanup()
+ }()
+ //get the nodes of the network
+ nodes := net.GetNodes()
+ //select one index at random...
+ idx := rand.Intn(len(nodes))
+ //...and get the the node at that index
+ //this is the node selected for upload
+ node := nodes[idx]
+
+ log.Info("Initializing test config")
+ //iterate over all nodes...
+ for c := 0; c < len(nodes); c++ {
+ //create an array of discovery node IDs
+ ids[c] = nodes[c].ID()
+ //get the kademlia overlay address from this ID
+ a := network.ToOverlayAddr(ids[c].Bytes())
+ //append it to the array of all overlay addresses
+ conf.addrs = append(conf.addrs, a)
+ //the proximity calculation is on overlay addr,
+ //the p2p/simulations check func triggers on discover.NodeID,
+ //so we need to know which overlay addr maps to which nodeID
+ conf.addrToIdMap[string(a)] = ids[c]
+ }
+ log.Info("Test config successfully initialized")
+
+ //only needed for healthy call when debugging
+ ppmap = network.NewPeerPotMap(testMinProxBinSize, conf.addrs)
+
+ //define the action to be performed before the test checks: start syncing
+ action := func(ctx context.Context) error {
+ //first run the health check on all nodes,
+ //wait until nodes are all healthy
+ ticker := time.NewTicker(200 * time.Millisecond)
+ defer ticker.Stop()
+ for range ticker.C {
+ healthy := true
+ for _, id := range ids {
+ r := registries[id]
+ //PeerPot for this node
+ addr := common.Bytes2Hex(network.ToOverlayAddr(id.Bytes()))
+ pp := ppmap[addr]
+ //call Healthy RPC
+ h := r.delivery.overlay.Healthy(pp)
+ //print info
+ log.Debug(r.delivery.overlay.String())
+ log.Debug(fmt.Sprintf("IS HEALTHY: %t", h.GotNN && h.KnowNN && h.Full))
+ if !h.GotNN || !h.Full {
+ healthy = false
+ break
+ }
+ }
+ if healthy {
+ break
+ }
+ }
+
+ if history {
+ log.Info("Uploading for history")
+ //If testing only history, we upload the chunk(s) first
+ chunks, err := uploadFileToSingleNodeStore(node.ID(), chunkCount)
+ if err != nil {
+ return err
+ }
+ conf.hashes = append(conf.hashes, chunks...)
+ //finally map chunks to the closest addresses
+ mapKeysToNodes(conf)
+ }
+
+ //variables needed to wait for all subscriptions established before uploading
+ errc := make(chan error)
+
+ //now setup and start event watching in order to know when we can upload
+ ctx, watchCancel := context.WithTimeout(context.Background(), MaxTimeout*time.Second)
+ defer watchCancel()
+
+ log.Info("Setting up stream subscription")
+
+ //We need two iterations, one to subscribe to the subscription events
+ //(so we know when setup phase is finished), and one to
+ //actually run the stream subscriptions. We can't do it in the same iteration,
+ //because while the first nodes in the loop are setting up subscriptions,
+ //the latter ones have not subscribed to listen to peer events yet,
+ //and then we miss events.
+
+ //first iteration: setup disconnection watcher and subscribe to peer events
+ for j, id := range ids {
+ log.Trace(fmt.Sprintf("Subscribe to subscription events: %d", j))
+ client, err := net.GetNode(id).Client()
+ if err != nil {
+ return err
+ }
+
+ wsDoneC := watchSubscriptionEvents(ctx, id, client, errc, quitC)
+ // doneC is nil, the error happened which is sent to errc channel, already
+ if wsDoneC == nil {
+ continue
+ }
+ rpcSubscriptionsWg.Add(1)
+ go func() {
+ <-wsDoneC
+ rpcSubscriptionsWg.Done()
+ }()
+
+ //watch for peers disconnecting
+ wdDoneC, err := streamTesting.WatchDisconnections(id, client, disconnectC, quitC)
+ if err != nil {
+ return err
+ }
+ rpcSubscriptionsWg.Add(1)
+ go func() {
+ <-wdDoneC
+ rpcSubscriptionsWg.Done()
+ }()
+ }
+
+ //second iteration: start syncing
+ for j, id := range ids {
+ log.Trace(fmt.Sprintf("Start syncing subscriptions: %d", j))
+ client, err := net.GetNode(id).Client()
+ if err != nil {
+ return err
+ }
+ //start syncing!
+ var cnt int
+ err = client.CallContext(ctx, &cnt, "stream_startSyncing")
+ if err != nil {
+ return err
+ }
+ //increment the number of subscriptions we need to wait for
+ //by the count returned from startSyncing (SYNC subscriptions)
+ subscriptionCount += cnt
+ }
+
+ //now wait until the number of expected subscriptions has been finished
+ //`watchSubscriptionEvents` will write with a `nil` value to errc
+ for err := range errc {
+ if err != nil {
+ return err
+ }
+ //`nil` received, decrement count
+ subscriptionCount--
+ //all subscriptions received
+ if subscriptionCount == 0 {
+ break
+ }
+ }
+
+ log.Info("Stream subscriptions successfully requested")
+ if live {
+ //now upload the chunks to the selected random single node
+ hashes, err := uploadFileToSingleNodeStore(node.ID(), chunkCount)
+ if err != nil {
+ return err
+ }
+ conf.hashes = append(conf.hashes, hashes...)
+ //finally map chunks to the closest addresses
+ log.Debug(fmt.Sprintf("Uploaded chunks for live syncing: %v", conf.hashes))
+ mapKeysToNodes(conf)
+ log.Info(fmt.Sprintf("Uploaded %d chunks to random single node", chunkCount))
+ }
+
+ log.Info("Action terminated")
+
+ return nil
+ }
+
+ //check defines what will be checked during the test
+ check := func(ctx context.Context, id discover.NodeID) (bool, error) {
+ select {
+ case <-ctx.Done():
+ return false, ctx.Err()
+ case e := <-disconnectC:
+ log.Error(e.Error())
+ return false, fmt.Errorf("Disconnect event detected, network unhealthy")
+ default:
+ }
+ log.Trace(fmt.Sprintf("Checking node: %s", id))
+ //select the local store for the given node
+ //if there are more than one chunk, test only succeeds if all expected chunks are found
+ allSuccess := true
+
+ //all the chunk indexes which are supposed to be found for this node
+ localChunks := conf.idToChunksMap[id]
+ //for each expected chunk, check if it is in the local store
+ for _, ch := range localChunks {
+ //get the real chunk by the index in the index array
+ chunk := conf.hashes[ch]
+ log.Trace(fmt.Sprintf("node has chunk: %s:", chunk))
+ //check if the expected chunk is indeed in the localstore
+ var err error
+ if *useMockStore {
+ if globalStore == nil {
+ return false, fmt.Errorf("Something went wrong; using mockStore enabled but globalStore is nil")
+ }
+ //use the globalStore if the mockStore should be used; in that case,
+ //the complete localStore stack is bypassed for getting the chunk
+ _, err = globalStore.Get(common.BytesToAddress(id.Bytes()), chunk)
+ } else {
+ //use the actual localstore
+ lstore := stores[id]
+ _, err = lstore.Get(chunk)
+ }
+ if err != nil {
+ log.Warn(fmt.Sprintf("Chunk %s NOT found for id %s", chunk, id))
+ allSuccess = false
+ } else {
+ log.Debug(fmt.Sprintf("Chunk %s IS FOUND for id %s", chunk, id))
+ }
+ }
+
+ return allSuccess, nil
+ }
+
+ //for each tick, run the checks on all nodes
+ timingTicker := time.NewTicker(time.Second * 1)
+ defer timingTicker.Stop()
+ go func() {
+ for range timingTicker.C {
+ for i := 0; i < len(ids); i++ {
+ log.Trace(fmt.Sprintf("triggering step %d, id %s", i, ids[i]))
+ trigger <- ids[i]
+ }
+ }
+ }()
+
+ log.Info("Starting simulation run...")
+
+ timeout := MaxTimeout * time.Second
+ ctx, cancel := context.WithTimeout(context.Background(), timeout)
+ defer cancel()
+
+ //run the simulation
+ result := simulations.NewSimulation(net).Run(ctx, &simulations.Step{
+ Action: action,
+ Trigger: trigger,
+ Expect: &simulations.Expectation{
+ Nodes: ids,
+ Check: check,
+ },
+ })
+
+ if result.Error != nil {
+ return result.Error
+ }
+ log.Info("Simulation terminated")
+ return nil
+}
+
+//the server func to start syncing
+//issues `RequestSubscriptionMsg` to peers, based on po, by iterating over
+//the kademlia's `EachBin` function.
+//returns the number of subscriptions requested
+func (r *TestRegistry) StartSyncing(ctx context.Context) (int, error) {
+ var err error
+
+ if log.Lvl(*loglevel) == log.LvlDebug {
+ //PeerPot for this node
+ addr := common.Bytes2Hex(r.addr.OAddr)
+ pp := ppmap[addr]
+ //call Healthy RPC
+ h := r.delivery.overlay.Healthy(pp)
+ //print info
+ log.Debug(r.delivery.overlay.String())
+ log.Debug(fmt.Sprintf("IS HEALTHY: %t", h.GotNN && h.KnowNN && h.Full))
+ }
+
+ kad, ok := r.delivery.overlay.(*network.Kademlia)
+ if !ok {
+ return 0, fmt.Errorf("Not a Kademlia!")
+ }
+
+ subCnt := 0
+ //iterate over each bin and solicit needed subscription to bins
+ kad.EachBin(r.addr.Over(), pof, 0, func(conn network.OverlayConn, po int) bool {
+ //identify begin and start index of the bin(s) we want to subscribe to
+ log.Debug(fmt.Sprintf("Requesting subscription by: registry %s from peer %s for bin: %d", r.addr.ID(), conf.addrToIdMap[string(conn.Address())], po))
+ var histRange *Range
+ if history {
+ histRange = &Range{}
+ }
+
+ subCnt++
+ err = r.RequestSubscription(conf.addrToIdMap[string(conn.Address())], NewStream("SYNC", FormatSyncBinKey(uint8(po)), live), histRange, Top)
+ if err != nil {
+ log.Error(fmt.Sprintf("Error in RequestSubsciption! %v", err))
+ return false
+ }
+ return true
+
+ })
+ return subCnt, nil
+}
+
+//map chunk keys to addresses which are responsible
+func mapKeysToNodes(conf *synctestConfig) {
+ kmap := make(map[string][]int)
+ nodemap := make(map[string][]int)
+ //build a pot for chunk hashes
+ np := pot.NewPot(nil, 0)
+ indexmap := make(map[string]int)
+ for i, a := range conf.addrs {
+ indexmap[string(a)] = i
+ np, _, _ = pot.Add(np, a, pof)
+ }
+ //for each address, run EachNeighbour on the chunk hashes pot to identify closest nodes
+ log.Trace(fmt.Sprintf("Generated hash chunk(s): %v", conf.hashes))
+ for i := 0; i < len(conf.hashes); i++ {
+ pl := 256 //highest possible proximity
+ var nns []int
+ np.EachNeighbour([]byte(conf.hashes[i]), pof, func(val pot.Val, po int) bool {
+ a := val.([]byte)
+ if pl < 256 && pl != po {
+ return false
+ }
+ if pl == 256 || pl == po {
+ log.Trace(fmt.Sprintf("appending %s", conf.addrToIdMap[string(a)]))
+ nns = append(nns, indexmap[string(a)])
+ nodemap[string(a)] = append(nodemap[string(a)], i)
+ }
+ if pl == 256 && len(nns) >= testMinProxBinSize {
+ //maxProxBinSize has been reached at this po, so save it
+ //we will add all other nodes at the same po
+ pl = po
+ }
+ return true
+ })
+ kmap[string(conf.hashes[i])] = nns
+ }
+ for addr, chunks := range nodemap {
+ //this selects which chunks are expected to be found with the given node
+ conf.idToChunksMap[conf.addrToIdMap[addr]] = chunks
+ }
+ log.Debug(fmt.Sprintf("Map of expected chunks by ID: %v", conf.idToChunksMap))
+ conf.chunksToNodesMap = kmap
+}
+
+//upload a file(chunks) to a single local node store
+func uploadFileToSingleNodeStore(id discover.NodeID, chunkCount int) ([]storage.Address, error) {
+ log.Debug(fmt.Sprintf("Uploading to node id: %s", id))
+ lstore := stores[id]
+ size := chunkSize
+ fileStore := storage.NewFileStore(lstore, storage.NewFileStoreParams())
+ var rootAddrs []storage.Address
+ for i := 0; i < chunkCount; i++ {
+ rk, wait, err := fileStore.Store(io.LimitReader(crand.Reader, int64(size)), int64(size), false)
+ wait()
+ if err != nil {
+ return nil, err
+ }
+ rootAddrs = append(rootAddrs, (rk))
+ }
+
+ return rootAddrs, nil
+}
+
+//initialize a network from a snapshot
+func initNetWithSnapshot(nodeCount int) (*simulations.Network, error) {
+
+ var a adapters.NodeAdapter
+ //add the streamer service to the node adapter
+
+ if *adapter == "exec" {
+ dirname, err := ioutil.TempDir(".", "")
+ if err != nil {
+ return nil, err
+ }
+ a = adapters.NewExecAdapter(dirname)
+ } else if *adapter == "tcp" {
+ a = adapters.NewTCPAdapter(services)
+ } else if *adapter == "sim" {
+ a = adapters.NewSimAdapter(services)
+ }
+
+ log.Info("Setting up Snapshot network")
+
+ net := simulations.NewNetwork(a, &simulations.NetworkConfig{
+ ID: "0",
+ DefaultService: "streamer",
+ })
+
+ f, err := os.Open(fmt.Sprintf("testing/snapshot_%d.json", nodeCount))
+ if err != nil {
+ return nil, err
+ }
+ defer f.Close()
+ jsonbyte, err := ioutil.ReadAll(f)
+ if err != nil {
+ return nil, err
+ }
+ var snap simulations.Snapshot
+ err = json.Unmarshal(jsonbyte, &snap)
+ if err != nil {
+ return nil, err
+ }
+
+ //the snapshot probably has the property EnableMsgEvents not set
+ //just in case, set it to true!
+ //(we need this to wait for messages before uploading)
+ for _, n := range snap.Nodes {
+ n.Node.Config.EnableMsgEvents = true
+ }
+
+ log.Info("Waiting for p2p connections to be established...")
+
+ //now we can load the snapshot
+ err = net.Load(&snap)
+ if err != nil {
+ return nil, err
+ }
+ log.Info("Snapshot loaded")
+ return net, nil
+}
+
+//we want to wait for subscriptions to be established before uploading to test
+//that live syncing is working correctly
+func watchSubscriptionEvents(ctx context.Context, id discover.NodeID, client *rpc.Client, errc chan error, quitC chan struct{}) (doneC <-chan struct{}) {
+ events := make(chan *p2p.PeerEvent)
+ sub, err := client.Subscribe(context.Background(), "admin", events, "peerEvents")
+ if err != nil {
+ log.Error(err.Error())
+ errc <- fmt.Errorf("error getting peer events for node %v: %s", id, err)
+ return
+ }
+ c := make(chan struct{})
+
+ go func() {
+ defer func() {
+ log.Trace("watch subscription events: unsubscribe", "id", id)
+ sub.Unsubscribe()
+ close(c)
+ }()
+
+ for {
+ select {
+ case <-quitC:
+ return
+ case <-ctx.Done():
+ select {
+ case errc <- ctx.Err():
+ case <-quitC:
+ }
+ return
+ case e := <-events:
+ //just catch SubscribeMsg
+ if e.Type == p2p.PeerEventTypeMsgRecv && e.Protocol == "stream" && e.MsgCode != nil && *e.MsgCode == 4 {
+ errc <- nil
+ }
+ case err := <-sub.Err():
+ if err != nil {
+ select {
+ case errc <- fmt.Errorf("error getting peer events for node %v: %v", id, err):
+ case <-quitC:
+ }
+ return
+ }
+ }
+ }
+ }()
+ return c
+}
+
+//create a local store for the given node
+func createTestLocalStorageForId(id discover.NodeID, addr *network.BzzAddr) (storage.ChunkStore, error) {
+ var datadir string
+ var err error
+ datadir, err = ioutil.TempDir("", fmt.Sprintf("syncer-test-%s", id.TerminalString()))
+ if err != nil {
+ return nil, err
+ }
+ datadirs[id] = datadir
+ var store storage.ChunkStore
+ params := storage.NewDefaultLocalStoreParams()
+ params.ChunkDbPath = datadir
+ params.BaseKey = addr.Over()
+ store, err = storage.NewTestLocalStoreForAddr(params)
+ if err != nil {
+ return nil, err
+ }
+ return store, nil
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-30 06:09:21 +0800