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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,233 @@ | ||
| package itest | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "sync" | ||
| "sync/atomic" | ||
| "testing" | ||
| "time" | ||
|
|
||
| rcmgr "github.com/libp2p/go-libp2p-resource-manager" | ||
|
|
||
| "github.com/libp2p/go-libp2p" | ||
| "github.com/libp2p/go-libp2p-core/peer" | ||
| ) | ||
|
|
||
| func makeRcmgrOption(t *testing.T, limiter *rcmgr.BasicLimiter) func() libp2p.Option { | ||
| return func() libp2p.Option { | ||
| mgr, err := rcmgr.NewResourceManager(limiter) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| return libp2p.ResourceManager(mgr) | ||
| } | ||
| } | ||
|
|
||
| func TestResourceManagerConnInbound(t *testing.T) { | ||
| // this test checks that we can not exceed the inbound conn limit at system level | ||
| // we specify: 1 conn per peer, 3 conns total, and we try to create 4 conns | ||
| limiter := rcmgr.NewFixedLimiter(1 << 30) | ||
| limiter.SystemLimits = limiter.SystemLimits.WithConnLimit(3, 1024, 1024) | ||
| limiter.DefaultPeerLimits = limiter.DefaultPeerLimits.WithConnLimit(1, 16, 16) | ||
|
|
||
| echos := createEchos(t, 5, makeRcmgrOption(t, limiter)) | ||
| defer closeEchos(echos) | ||
|
|
||
| for i := 1; i < 4; i++ { | ||
| err := echos[i].Host.Connect(context.Background(), peer.AddrInfo{ID: echos[0].Host.ID()}) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| time.Sleep(10 * time.Millisecond) | ||
| } | ||
|
|
||
| for i := 1; i < 4; i++ { | ||
| count := len(echos[i].Host.Network().ConnsToPeer(echos[0].Host.ID())) | ||
| if count != 1 { | ||
| t.Fatalf("expected %d connections to peer, got %d", 1, count) | ||
| } | ||
| } | ||
|
|
||
| err := echos[4].Host.Connect(context.Background(), peer.AddrInfo{ID: echos[0].Host.ID()}) | ||
| if err == nil { | ||
| t.Fatal("expected ResourceManager to block incoming connection") | ||
| } | ||
| } | ||
|
|
||
| func TestResourceManagerConnOutbound(t *testing.T) { | ||
| // this test checks that we can not exceed the inbound conn limit at system level | ||
| // we specify: 1 conn per peer, 3 conns total, and we try to create 4 conns | ||
| limiter := rcmgr.NewFixedLimiter(1 << 30) | ||
| limiter.SystemLimits = limiter.SystemLimits.WithConnLimit(1024, 3, 1024) | ||
| limiter.DefaultPeerLimits = limiter.DefaultPeerLimits.WithConnLimit(16, 1, 16) | ||
| echos := createEchos(t, 5, makeRcmgrOption(t, limiter)) | ||
| defer closeEchos(echos) | ||
|
|
||
| for i := 1; i < 4; i++ { | ||
| err := echos[0].Host.Connect(context.Background(), peer.AddrInfo{ID: echos[i].Host.ID()}) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| time.Sleep(10 * time.Millisecond) | ||
| } | ||
|
|
||
| for i := 1; i < 4; i++ { | ||
| count := len(echos[i].Host.Network().ConnsToPeer(echos[0].Host.ID())) | ||
| if count != 1 { | ||
| t.Fatalf("expected %d connections to peer, got %d", 1, count) | ||
| } | ||
| } | ||
|
|
||
| err := echos[0].Host.Connect(context.Background(), peer.AddrInfo{ID: echos[4].Host.ID()}) | ||
| if err == nil { | ||
| t.Fatal("expected ResourceManager to block incoming connection") | ||
| } | ||
| } | ||
|
|
||
| func TestResourceManagerServiceInbound(t *testing.T) { | ||
| // this test checks that we can not exceed the inbound stream limit at service level | ||
| // we specify: 3 streams for the service, and we try to create 4 streams | ||
| limiter := rcmgr.NewFixedLimiter(1 << 30) | ||
| limiter.DefaultServiceLimits = limiter.DefaultServiceLimits.WithStreamLimit(3, 1024, 1024) | ||
| echos := createEchos(t, 5, makeRcmgrOption(t, limiter)) | ||
| defer closeEchos(echos) | ||
|
|
||
| ready := new(chan struct{}) | ||
| echos[0].BeforeDone = waitForChannel(ready, time.Minute) | ||
|
|
||
| for i := 1; i < 5; i++ { | ||
| err := echos[i].Host.Connect(context.Background(), peer.AddrInfo{ID: echos[0].Host.ID()}) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| time.Sleep(10 * time.Millisecond) | ||
| } | ||
|
|
||
| *ready = make(chan struct{}) | ||
|
|
||
| var once sync.Once | ||
| var wg sync.WaitGroup | ||
| for i := 1; i < 5; i++ { | ||
| wg.Add(1) | ||
| go func(i int) { | ||
| defer wg.Done() | ||
|
|
||
| err := echos[i].Echo(echos[0].Host.ID(), "hello libp2p") | ||
| if err != nil { | ||
| t.Log(err) | ||
| once.Do(func() { | ||
| close(*ready) | ||
| }) | ||
| } | ||
| }(i) | ||
| } | ||
| wg.Wait() | ||
|
|
||
| checkEchoStatus(t, echos[0], EchoStatus{ | ||
| StreamsIn: 4, | ||
| EchosIn: 3, | ||
| EchosOut: 3, | ||
| ResourceServiceErrors: 1, | ||
| }) | ||
| } | ||
|
|
||
| func TestResourceManagerServicePeerInbound(t *testing.T) { | ||
| // this test checks that we cannot exceed the per peer inbound stream limit at service level | ||
| // we specify: 2 streams per peer for echo, and we try to create 3 streams | ||
| limiter := rcmgr.NewFixedLimiter(1 << 30) | ||
| limiter.ServicePeerLimits = map[string]rcmgr.Limit{ | ||
| EchoService: limiter.DefaultPeerLimits.WithStreamLimit(2, 1024, 1024), | ||
| } | ||
| echos := createEchos(t, 5, makeRcmgrOption(t, limiter)) | ||
| defer closeEchos(echos) | ||
|
|
||
| count := new(int32) | ||
| ready := new(chan struct{}) | ||
| echos[0].BeforeDone = waitForBarrier(count, ready, time.Minute) | ||
|
|
||
| for i := 1; i < 5; i++ { | ||
| err := echos[i].Host.Connect(context.Background(), peer.AddrInfo{ID: echos[0].Host.ID()}) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| time.Sleep(10 * time.Millisecond) | ||
| } | ||
|
|
||
| *count = 4 | ||
| *ready = make(chan struct{}) | ||
|
|
||
| var wg sync.WaitGroup | ||
| for i := 1; i < 5; i++ { | ||
| wg.Add(1) | ||
| go func(i int) { | ||
| defer wg.Done() | ||
|
|
||
| err := echos[i].Echo(echos[0].Host.ID(), "hello libp2p") | ||
| if err != nil { | ||
| t.Log(err) | ||
| } | ||
| }(i) | ||
| } | ||
| wg.Wait() | ||
|
|
||
| checkEchoStatus(t, echos[0], EchoStatus{ | ||
| StreamsIn: 4, | ||
| EchosIn: 4, | ||
| EchosOut: 4, | ||
| ResourceServiceErrors: 0, | ||
| }) | ||
|
|
||
| *ready = make(chan struct{}) | ||
| echos[0].BeforeDone = waitForChannel(ready, time.Minute) | ||
|
|
||
| var once sync.Once | ||
| for i := 0; i < 3; i++ { | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
|
|
||
| err := echos[2].Echo(echos[0].Host.ID(), "hello libp2p") | ||
| if err != nil { | ||
| t.Log(err) | ||
| once.Do(func() { | ||
| close(*ready) | ||
| }) | ||
| } | ||
| }() | ||
| } | ||
| wg.Wait() | ||
|
|
||
| checkEchoStatus(t, echos[0], EchoStatus{ | ||
| StreamsIn: 7, | ||
| EchosIn: 6, | ||
| EchosOut: 6, | ||
| ResourceServiceErrors: 1, | ||
| }) | ||
| } | ||
|
|
||
| func waitForBarrier(count *int32, ready *chan struct{}, timeout time.Duration) func() error { | ||
| return func() error { | ||
| if atomic.AddInt32(count, -1) == 0 { | ||
| close(*ready) | ||
| } | ||
|
|
||
| select { | ||
| case <-*ready: | ||
| return nil | ||
| case <-time.After(timeout): | ||
| return fmt.Errorf("timeout") | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func waitForChannel(ready *chan struct{}, timeout time.Duration) func() error { | ||
| return func() error { | ||
| select { | ||
| case <-*ready: | ||
| return nil | ||
| case <-time.After(timeout): | ||
| return fmt.Errorf("timeout") | ||
| } | ||
| } | ||
| } |