ceremonyclient/go-libp2p/p2p/discovery/routing/routing_test.go

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2023-08-21 03:50:38 +00:00
package routing
import (
"context"
"sync"
"testing"
"time"
"github.com/benbjohnson/clock"
"github.com/libp2p/go-libp2p/p2p/discovery/mocks"
"github.com/libp2p/go-libp2p/p2p/discovery/util"
bhost "github.com/libp2p/go-libp2p/p2p/host/blank"
swarmt "github.com/libp2p/go-libp2p/p2p/net/swarm/testing"
"github.com/ipfs/go-cid"
"github.com/libp2p/go-libp2p/core/discovery"
"github.com/libp2p/go-libp2p/core/host"
"github.com/libp2p/go-libp2p/core/peer"
)
type mockRoutingTable struct {
mx sync.Mutex
providers map[string]map[peer.ID]peer.AddrInfo
}
type mockRouting struct {
h host.Host
tab *mockRoutingTable
}
func NewMockRoutingTable() *mockRoutingTable {
return &mockRoutingTable{providers: make(map[string]map[peer.ID]peer.AddrInfo)}
}
func NewMockRouting(h host.Host, tab *mockRoutingTable) *mockRouting {
return &mockRouting{h: h, tab: tab}
}
func (m *mockRouting) Provide(ctx context.Context, cid cid.Cid, bcast bool) error {
m.tab.mx.Lock()
defer m.tab.mx.Unlock()
pmap, ok := m.tab.providers[cid.String()]
if !ok {
pmap = make(map[peer.ID]peer.AddrInfo)
m.tab.providers[cid.String()] = pmap
}
pmap[m.h.ID()] = peer.AddrInfo{ID: m.h.ID(), Addrs: m.h.Addrs()}
return nil
}
func (m *mockRouting) FindProvidersAsync(ctx context.Context, cid cid.Cid, limit int) <-chan peer.AddrInfo {
ch := make(chan peer.AddrInfo)
go func() {
defer close(ch)
m.tab.mx.Lock()
defer m.tab.mx.Unlock()
pmap, ok := m.tab.providers[cid.String()]
if !ok {
return
}
for _, pi := range pmap {
select {
case ch <- pi:
case <-ctx.Done():
return
}
}
}()
return ch
}
func TestRoutingDiscovery(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
h1 := bhost.NewBlankHost(swarmt.GenSwarm(t))
h2 := bhost.NewBlankHost(swarmt.GenSwarm(t))
mtab := NewMockRoutingTable()
mr1 := NewMockRouting(h1, mtab)
mr2 := NewMockRouting(h2, mtab)
d1 := NewRoutingDiscovery(mr1)
d2 := NewRoutingDiscovery(mr2)
_, err := d1.Advertise(ctx, "/test")
if err != nil {
t.Fatal(err)
}
pis, err := util.FindPeers(ctx, d2, "/test", discovery.Limit(20))
if err != nil {
t.Fatal(err)
}
if len(pis) != 1 {
t.Fatalf("Expected 1 peer, got %d", len(pis))
}
pi := pis[0]
if pi.ID != h1.ID() {
t.Fatalf("Unexpected peer: %s", pi.ID)
}
}
func TestDiscoveryRouting(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
h1 := bhost.NewBlankHost(swarmt.GenSwarm(t))
h2 := bhost.NewBlankHost(swarmt.GenSwarm(t))
clock := clock.NewMock()
dserver := mocks.NewDiscoveryServer(clock)
d1 := mocks.NewDiscoveryClient(h1, dserver)
d2 := mocks.NewDiscoveryClient(h2, dserver)
r1 := NewDiscoveryRouting(d1, discovery.TTL(time.Hour))
r2 := NewDiscoveryRouting(d2, discovery.TTL(time.Hour))
c, err := nsToCid("/test")
if err != nil {
t.Fatal(err)
}
if err := r1.Provide(ctx, c, true); err != nil {
t.Fatal(err)
}
pch := r2.FindProvidersAsync(ctx, c, 20)
allAIs := make([]peer.AddrInfo, 0, len(pch))
for ai := range pch {
allAIs = append(allAIs, ai)
}
if len(allAIs) != 1 {
t.Fatalf("Expected 1 peer, got %d", len(allAIs))
}
ai := allAIs[0]
if ai.ID != h1.ID() {
t.Fatalf("Unexpected peer: %s", ai.ID)
}
}