169 lines
3.5 KiB
Go
169 lines
3.5 KiB
Go
package dht
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import (
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"net"
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"sync"
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"testing"
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"time"
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)
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func TestNodeFinder_FindNodes(t *testing.T) {
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bs, dhts := TestingCreateDHT(3, true, false)
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defer func() {
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for i := range dhts {
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dhts[i].Shutdown()
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}
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bs.Shutdown()
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}()
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nf := newContactFinder(dhts[2].node, RandomBitmapP(), false)
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res, err := nf.Find()
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if err != nil {
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t.Fatal(err)
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}
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foundNodes, found := res.Contacts, res.Found
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if found {
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t.Fatal("something was found, but it should not have been")
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}
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if len(foundNodes) != 3 {
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t.Errorf("expected 3 node, found %d", len(foundNodes))
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}
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foundBootstrap := false
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foundOne := false
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foundTwo := false
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for _, n := range foundNodes {
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if n.id.Equals(bs.id) {
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foundBootstrap = true
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}
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if n.id.Equals(dhts[0].node.id) {
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foundOne = true
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}
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if n.id.Equals(dhts[1].node.id) {
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foundTwo = true
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}
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}
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if !foundBootstrap {
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t.Errorf("did not find bootstrap node %s", bs.id.Hex())
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}
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if !foundOne {
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t.Errorf("did not find first node %s", dhts[0].node.id.Hex())
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}
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if !foundTwo {
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t.Errorf("did not find second node %s", dhts[1].node.id.Hex())
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}
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}
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func TestNodeFinder_FindNodes_NoBootstrap(t *testing.T) {
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_, dhts := TestingCreateDHT(3, false, false)
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defer func() {
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for i := range dhts {
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dhts[i].Shutdown()
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}
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}()
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nf := newContactFinder(dhts[2].node, RandomBitmapP(), false)
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_, err := nf.Find()
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if err == nil {
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t.Fatal("contact finder should have errored saying that there are no contacts in the routing table")
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}
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}
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func TestNodeFinder_FindValue(t *testing.T) {
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bs, dhts := TestingCreateDHT(3, true, false)
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defer func() {
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for i := range dhts {
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dhts[i].Shutdown()
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}
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bs.Shutdown()
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}()
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blobHashToFind := RandomBitmapP()
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nodeToFind := Contact{id: RandomBitmapP(), ip: net.IPv4(1, 2, 3, 4), port: 5678}
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dhts[0].node.store.Upsert(blobHashToFind, nodeToFind)
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nf := newContactFinder(dhts[2].node, blobHashToFind, true)
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res, err := nf.Find()
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if err != nil {
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t.Fatal(err)
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}
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foundNodes, found := res.Contacts, res.Found
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if !found {
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t.Fatal("node was not found")
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}
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if len(foundNodes) != 1 {
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t.Fatalf("expected one node, found %d", len(foundNodes))
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}
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if !foundNodes[0].id.Equals(nodeToFind.id) {
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t.Fatalf("found node id %s, expected %s", foundNodes[0].id.Hex(), nodeToFind.id.Hex())
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}
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}
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func TestDHT_LargeDHT(t *testing.T) {
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nodes := 100
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bs, dhts := TestingCreateDHT(nodes, true, true)
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defer func() {
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for _, d := range dhts {
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go d.Shutdown()
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}
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bs.Shutdown()
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time.Sleep(1 * time.Second)
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}()
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wg := &sync.WaitGroup{}
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ids := make([]Bitmap, nodes)
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for i := range ids {
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ids[i] = RandomBitmapP()
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go func(i int) {
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wg.Add(1)
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defer wg.Done()
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dhts[i].Announce(ids[i])
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}(i)
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}
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wg.Wait()
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// check that each node is in at learst 1 other routing table
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rtCounts := make(map[Bitmap]int)
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for _, d := range dhts {
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for _, d2 := range dhts {
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if d.node.id.Equals(d2.node.id) {
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continue
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}
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c := d2.node.rt.GetClosest(d.node.id, 1)
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if len(c) > 1 {
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t.Error("rt returned more than one node when only one requested")
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} else if len(c) == 1 && c[0].id.Equals(d.node.id) {
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rtCounts[d.node.id]++
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}
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}
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}
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for k, v := range rtCounts {
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if v == 0 {
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t.Errorf("%s was not in any routing tables", k.HexShort())
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}
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}
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// check that each ID is stored by at least 3 nodes
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storeCounts := make(map[Bitmap]int)
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for _, d := range dhts {
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for _, id := range ids {
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if len(d.node.store.Get(id)) > 0 {
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storeCounts[id]++
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}
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}
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}
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for k, v := range storeCounts {
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if v == 0 {
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t.Errorf("%s was not stored by any nodes", k.HexShort())
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}
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}
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}
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