mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-12-27 09:05:18 +00:00
752 lines
17 KiB
Go
752 lines
17 KiB
Go
package mocknet
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import (
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"bytes"
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"context"
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"crypto/rand"
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"fmt"
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"io"
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"math"
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"sync"
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"testing"
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"time"
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"github.com/libp2p/go-libp2p/core/crypto"
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"github.com/libp2p/go-libp2p/core/event"
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"github.com/libp2p/go-libp2p/core/host"
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"github.com/libp2p/go-libp2p/core/network"
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"github.com/libp2p/go-libp2p/core/peer"
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"github.com/libp2p/go-libp2p/core/protocol"
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"github.com/libp2p/go-libp2p/p2p/net/conngater"
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manet "github.com/multiformats/go-multiaddr/net"
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"github.com/libp2p/go-libp2p-testing/ci"
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tetc "github.com/libp2p/go-libp2p-testing/etc"
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"github.com/libp2p/go-libp2p-testing/race"
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ma "github.com/multiformats/go-multiaddr"
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"github.com/stretchr/testify/require"
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)
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var lastPort = struct {
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port int
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sync.Mutex
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}{}
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// randLocalTCPAddress returns a random multiaddr. it suppresses errors
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// for nice composability-- do check the address isn't nil.
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//
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// NOTE: for real network tests, use a :0 address, so the kernel
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// assigns an unused TCP port. otherwise you may get clashes.
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func randLocalTCPAddress() ma.Multiaddr {
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// chances are it will work out, but it **might** fail if the port is in use
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// most ports above 10000 aren't in use by long running processes, so yay.
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// (maybe there should be a range of "loopback" ports that are guaranteed
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// to be open for the process, but naturally can only talk to self.)
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lastPort.Lock()
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if lastPort.port == 0 {
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lastPort.port = 10000 + tetc.SeededRand.Intn(50000)
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}
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port := lastPort.port
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lastPort.port++
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lastPort.Unlock()
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addr := fmt.Sprintf("/ip4/127.0.0.1/tcp/%d", port)
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maddr, _ := ma.NewMultiaddr(addr)
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return maddr
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}
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func TestNetworkSetup(t *testing.T) {
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ctx := context.Background()
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priv1, _, err := crypto.GenerateEd25519Key(rand.Reader)
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require.NoError(t, err)
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priv2, _, err := crypto.GenerateEd25519Key(rand.Reader)
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require.NoError(t, err)
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priv3, _, err := crypto.GenerateEd25519Key(rand.Reader)
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require.NoError(t, err)
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mn := New()
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defer mn.Close()
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// add peers to mock net
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a1 := randLocalTCPAddress()
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a2 := randLocalTCPAddress()
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a3 := randLocalTCPAddress()
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h1, err := mn.AddPeer(priv1, a1)
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if err != nil {
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t.Fatal(err)
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}
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p1 := h1.ID()
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h2, err := mn.AddPeer(priv2, a2)
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if err != nil {
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t.Fatal(err)
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}
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p2 := h2.ID()
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h3, err := mn.AddPeer(priv3, a3)
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if err != nil {
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t.Fatal(err)
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}
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p3 := h3.ID()
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// check peers and net
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if mn.Host(p1) != h1 {
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t.Error("host for p1.ID != h1")
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}
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if mn.Host(p2) != h2 {
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t.Error("host for p2.ID != h2")
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}
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if mn.Host(p3) != h3 {
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t.Error("host for p3.ID != h3")
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}
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n1 := h1.Network()
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if mn.Net(p1) != n1 {
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t.Error("net for p1.ID != n1")
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}
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n2 := h2.Network()
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if mn.Net(p2) != n2 {
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t.Error("net for p2.ID != n1")
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}
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n3 := h3.Network()
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if mn.Net(p3) != n3 {
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t.Error("net for p3.ID != n1")
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}
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// link p1<-->p2, p1<-->p1, p2<-->p3, p3<-->p2
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l12, err := mn.LinkPeers(p1, p2)
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if err != nil {
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t.Fatal(err)
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}
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if !(l12.Networks()[0] == n1 && l12.Networks()[1] == n2) &&
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!(l12.Networks()[0] == n2 && l12.Networks()[1] == n1) {
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t.Error("l12 networks incorrect")
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}
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l11, err := mn.LinkPeers(p1, p1)
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if err != nil {
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t.Fatal(err)
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}
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if !(l11.Networks()[0] == n1 && l11.Networks()[1] == n1) {
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t.Error("l11 networks incorrect")
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}
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l23, err := mn.LinkPeers(p2, p3)
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if err != nil {
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t.Fatal(err)
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}
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if !(l23.Networks()[0] == n2 && l23.Networks()[1] == n3) &&
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!(l23.Networks()[0] == n3 && l23.Networks()[1] == n2) {
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t.Error("l23 networks incorrect")
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}
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l32, err := mn.LinkPeers(p3, p2)
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if err != nil {
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t.Fatal(err)
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}
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if !(l32.Networks()[0] == n2 && l32.Networks()[1] == n3) &&
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!(l32.Networks()[0] == n3 && l32.Networks()[1] == n2) {
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t.Error("l32 networks incorrect")
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}
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// check things
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links12 := mn.LinksBetweenPeers(p1, p2)
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if len(links12) != 1 {
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t.Errorf("should be 1 link bt. p1 and p2 (found %d)", len(links12))
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}
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if links12[0] != l12 {
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t.Error("links 1-2 should be l12.")
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}
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links11 := mn.LinksBetweenPeers(p1, p1)
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if len(links11) != 1 {
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t.Errorf("should be 1 link bt. p1 and p1 (found %d)", len(links11))
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}
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if links11[0] != l11 {
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t.Error("links 1-1 should be l11.")
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}
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links23 := mn.LinksBetweenPeers(p2, p3)
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if len(links23) != 2 {
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t.Errorf("should be 2 link bt. p2 and p3 (found %d)", len(links23))
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}
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if !((links23[0] == l23 && links23[1] == l32) ||
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(links23[0] == l32 && links23[1] == l23)) {
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t.Error("links 2-3 should be l23 and l32.")
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}
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// unlinking
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if err := mn.UnlinkPeers(p2, p1); err != nil {
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t.Error(err)
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}
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// check only one link affected:
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links12 = mn.LinksBetweenPeers(p1, p2)
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if len(links12) != 0 {
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t.Error("should be 0 now...", len(links12))
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}
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links11 = mn.LinksBetweenPeers(p1, p1)
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if len(links11) != 1 {
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t.Errorf("should be 1 link bt. p1 and p1 (found %d)", len(links11))
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}
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if links11[0] != l11 {
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t.Error("links 1-1 should be l11.")
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}
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links23 = mn.LinksBetweenPeers(p2, p3)
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if len(links23) != 2 {
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t.Errorf("should be 2 link bt. p2 and p3 (found %d)", len(links23))
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}
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if !((links23[0] == l23 && links23[1] == l32) ||
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(links23[0] == l32 && links23[1] == l23)) {
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t.Error("links 2-3 should be l23 and l32.")
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}
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// check connecting
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// first, no conns
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if len(n2.Conns()) > 0 || len(n3.Conns()) > 0 {
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t.Errorf("should have 0 conn. Got: (%d, %d)", len(n2.Conns()), len(n3.Conns()))
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}
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// connect p2->p3
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if _, err := n2.DialPeer(ctx, p3); err != nil {
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t.Error(err)
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}
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// should immediately have a conn on peer 1
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if len(n2.Conns()) != 1 {
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t.Errorf("should have 1 conn on initiator. Got: %d)", len(n2.Conns()))
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}
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// wait for reciever to see the conn.
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for i := 0; i < 10 && len(n3.Conns()) == 0; i++ {
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time.Sleep(time.Duration(10*i) * time.Millisecond)
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}
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if len(n3.Conns()) != 1 {
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t.Errorf("should have 1 conn on reciever. Got: %d", len(n3.Conns()))
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}
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// p := PrinterTo(os.Stdout)
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// p.NetworkConns(n1)
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// p.NetworkConns(n2)
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// p.NetworkConns(n3)
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// can create a stream 2->3, 3->2,
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if _, err := n2.NewStream(ctx, p3); err != nil {
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t.Error(err)
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}
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if _, err := n3.NewStream(ctx, p2); err != nil {
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t.Error(err)
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}
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// but not 1->2 nor 2->2 (not linked), nor 1->1 (not connected)
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if _, err := n1.NewStream(ctx, p2); err == nil {
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t.Error("should not be able to connect")
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}
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if _, err := n2.NewStream(ctx, p2); err == nil {
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t.Error("should not be able to connect")
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}
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if _, err := n1.NewStream(ctx, p1); err == nil {
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t.Error("should not be able to connect")
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}
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// connect p1->p1 (should fail)
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if _, err := n1.DialPeer(ctx, p1); err == nil {
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t.Error("p1 shouldn't be able to dial self")
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}
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// and a stream too
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if _, err := n1.NewStream(ctx, p1); err == nil {
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t.Error("p1 shouldn't be able to dial self")
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}
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// connect p1->p2
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if _, err := n1.DialPeer(ctx, p2); err == nil {
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t.Error("p1 should not be able to dial p2, not connected...")
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}
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// connect p3->p1
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if _, err := n3.DialPeer(ctx, p1); err == nil {
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t.Error("p3 should not be able to dial p1, not connected...")
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}
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// relink p1->p2
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l12, err = mn.LinkPeers(p1, p2)
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if err != nil {
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t.Fatal(err)
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}
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if !(l12.Networks()[0] == n1 && l12.Networks()[1] == n2) &&
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!(l12.Networks()[0] == n2 && l12.Networks()[1] == n1) {
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t.Error("l12 networks incorrect")
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}
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// should now be able to connect
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// connect p1->p2
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if _, err := n1.DialPeer(ctx, p2); err != nil {
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t.Error(err)
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}
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// and a stream should work now too :)
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if _, err := n2.NewStream(ctx, p3); err != nil {
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t.Error(err)
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}
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}
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func TestStreams(t *testing.T) {
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ctx := context.Background()
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mn, err := FullMeshConnected(3)
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if err != nil {
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t.Fatal(err)
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}
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defer mn.Close()
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handler := func(s network.Stream) {
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b := make([]byte, 4)
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if _, err := io.ReadFull(s, b); err != nil {
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panic(err)
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}
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if !bytes.Equal(b, []byte("beep")) {
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panic("bytes mismatch")
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}
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if _, err := s.Write([]byte("boop")); err != nil {
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panic(err)
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}
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s.Close()
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}
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hosts := mn.Hosts()
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for _, h := range mn.Hosts() {
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h.SetStreamHandler(protocol.TestingID, handler)
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}
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s, err := hosts[0].NewStream(ctx, hosts[1].ID(), protocol.TestingID)
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if err != nil {
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t.Fatal(err)
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}
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if _, err := s.Write([]byte("beep")); err != nil {
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panic(err)
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}
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b := make([]byte, 4)
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if _, err := io.ReadFull(s, b); err != nil {
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panic(err)
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}
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if !bytes.Equal(b, []byte("boop")) {
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panic("bytes mismatch 2")
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}
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}
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func TestAdding(t *testing.T) {
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mn := New()
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defer mn.Close()
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var peers []peer.ID
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for i := 0; i < 3; i++ {
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priv, _, err := crypto.GenerateEd25519Key(rand.Reader)
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if err != nil {
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t.Fatal(err)
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}
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a := randLocalTCPAddress()
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h, err := mn.AddPeer(priv, a)
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if err != nil {
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t.Fatal(err)
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}
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peers = append(peers, h.ID())
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}
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p1 := peers[0]
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p2 := peers[1]
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// link them
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for _, p1 := range peers {
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for _, p2 := range peers {
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if _, err := mn.LinkPeers(p1, p2); err != nil {
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t.Error(err)
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}
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}
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}
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// set the new stream handler on p2
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h2 := mn.Host(p2)
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if h2 == nil {
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t.Fatalf("no host for %s", p2)
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}
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h2.SetStreamHandler(protocol.TestingID, func(s network.Stream) {
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defer s.Close()
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b := make([]byte, 4)
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if _, err := io.ReadFull(s, b); err != nil {
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panic(err)
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}
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if string(b) != "beep" {
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panic("did not beep!")
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}
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if _, err := s.Write([]byte("boop")); err != nil {
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panic(err)
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}
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})
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// connect p1 to p2
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if _, err := mn.ConnectPeers(p1, p2); err != nil {
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t.Fatal(err)
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}
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// talk to p2
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h1 := mn.Host(p1)
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if h1 == nil {
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t.Fatalf("no network for %s", p1)
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}
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ctx := context.Background()
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s, err := h1.NewStream(ctx, p2, protocol.TestingID)
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if err != nil {
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t.Fatal(err)
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}
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if _, err := s.Write([]byte("beep")); err != nil {
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t.Error(err)
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}
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b := make([]byte, 4)
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if _, err := io.ReadFull(s, b); err != nil {
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t.Error(err)
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}
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if !bytes.Equal(b, []byte("boop")) {
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t.Error("bytes mismatch 2")
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}
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}
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func TestRateLimiting(t *testing.T) {
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if ci.IsRunning() {
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t.Skip("buggy in CI")
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}
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rl := NewRateLimiter(10)
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if !within(rl.Limit(10), time.Duration(float32(time.Second)), time.Millisecond) {
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t.Fatal()
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}
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if !within(rl.Limit(10), time.Duration(float32(time.Second*2)), time.Millisecond) {
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t.Fatal()
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}
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if !within(rl.Limit(10), time.Duration(float32(time.Second*3)), time.Millisecond) {
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t.Fatal()
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}
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if within(rl.Limit(10), time.Duration(float32(time.Second*3)), time.Millisecond) {
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t.Fatal()
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}
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rl.UpdateBandwidth(50)
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if !within(rl.Limit(75), time.Duration(float32(time.Second)*1.5), time.Millisecond) {
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t.Fatal()
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}
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if within(rl.Limit(75), time.Duration(float32(time.Second)*1.5), time.Millisecond) {
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t.Fatal()
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}
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rl.UpdateBandwidth(100)
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if !within(rl.Limit(1), time.Duration(time.Millisecond*10), time.Millisecond) {
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t.Fatal()
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}
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if within(rl.Limit(1), time.Duration(time.Millisecond*10), time.Millisecond) {
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t.Fatal()
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}
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}
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func within(t1 time.Duration, t2 time.Duration, tolerance time.Duration) bool {
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return math.Abs(float64(t1)-float64(t2)) < float64(tolerance)
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}
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func TestLimitedStreams(t *testing.T) {
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mn, err := FullMeshConnected(2)
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if err != nil {
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t.Fatal(err)
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}
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defer mn.Close()
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var wg sync.WaitGroup
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messages := 4
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messageSize := 500
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handler := func(s network.Stream) {
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b := make([]byte, messageSize)
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for i := 0; i < messages; i++ {
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if _, err := io.ReadFull(s, b); err != nil {
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log.Fatal(err)
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}
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if !bytes.Equal(b[:4], []byte("ping")) {
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log.Fatal("bytes mismatch")
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}
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wg.Done()
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}
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s.Close()
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}
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hosts := mn.Hosts()
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for _, h := range mn.Hosts() {
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h.SetStreamHandler(protocol.TestingID, handler)
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}
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peers := mn.Peers()
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links := mn.LinksBetweenPeers(peers[0], peers[1])
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// 1000 byte per second bandwidth
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bps := float64(1000)
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opts := links[0].Options()
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opts.Bandwidth = bps
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for _, link := range links {
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link.SetOptions(opts)
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}
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ctx := context.Background()
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s, err := hosts[0].NewStream(ctx, hosts[1].ID(), protocol.TestingID)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
filler := make([]byte, messageSize-4)
|
|
data := append([]byte("ping"), filler...)
|
|
before := time.Now()
|
|
for i := 0; i < messages; i++ {
|
|
wg.Add(1)
|
|
if _, err := s.Write(data); err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
wg.Wait()
|
|
if !within(time.Since(before), time.Second*5/2, time.Second) {
|
|
t.Fatal("Expected 2ish seconds but got ", time.Since(before))
|
|
}
|
|
}
|
|
func TestFuzzManyPeers(t *testing.T) {
|
|
peerCount := 500
|
|
if race.WithRace() {
|
|
peerCount = 100
|
|
}
|
|
for i := 0; i < peerCount; i++ {
|
|
mn, err := FullMeshConnected(2)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
mn.Close()
|
|
}
|
|
}
|
|
|
|
func TestStreamsWithLatency(t *testing.T) {
|
|
latency := time.Millisecond * 500
|
|
|
|
mn, err := WithNPeers(2)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mn.Close()
|
|
|
|
// configure the Mocknet with some latency and link/connect its peers
|
|
mn.SetLinkDefaults(LinkOptions{Latency: latency})
|
|
mn.LinkAll()
|
|
mn.ConnectAllButSelf()
|
|
|
|
msg := []byte("ping")
|
|
mln := len(msg)
|
|
|
|
var wg sync.WaitGroup
|
|
|
|
// we'll write once to a single stream
|
|
wg.Add(1)
|
|
|
|
handler := func(s network.Stream) {
|
|
b := make([]byte, mln)
|
|
|
|
if _, err := io.ReadFull(s, b); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
wg.Done()
|
|
s.Close()
|
|
}
|
|
|
|
mn.Hosts()[0].SetStreamHandler(protocol.TestingID, handler)
|
|
mn.Hosts()[1].SetStreamHandler(protocol.TestingID, handler)
|
|
|
|
s, err := mn.Hosts()[0].NewStream(context.Background(), mn.Hosts()[1].ID(), protocol.TestingID)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// writing to the stream will be subject to our configured latency
|
|
checkpoint := time.Now()
|
|
if _, err := s.Write(msg); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
wg.Wait()
|
|
|
|
delta := time.Since(checkpoint)
|
|
tolerance := time.Second
|
|
if !within(delta, latency, tolerance) {
|
|
t.Fatalf("Expected write to take ~%s (+/- %s), but took %s", latency.String(), tolerance.String(), delta.String())
|
|
}
|
|
}
|
|
|
|
func TestEventBus(t *testing.T) {
|
|
const peers = 2
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
|
|
defer cancel()
|
|
|
|
mn, err := FullMeshLinked(peers)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mn.Close()
|
|
|
|
sub0, err := mn.Hosts()[0].EventBus().Subscribe(new(event.EvtPeerConnectednessChanged))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer sub0.Close()
|
|
sub1, err := mn.Hosts()[1].EventBus().Subscribe(new(event.EvtPeerConnectednessChanged))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer sub1.Close()
|
|
|
|
id0, id1 := mn.Hosts()[0].ID(), mn.Hosts()[1].ID()
|
|
|
|
_, err = mn.ConnectPeers(id0, id1)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for range make([]int, peers) {
|
|
select {
|
|
case evt := <-sub0.Out():
|
|
evnt := evt.(event.EvtPeerConnectednessChanged)
|
|
if evnt.Peer != id1 {
|
|
t.Fatal("wrong remote peer")
|
|
}
|
|
if evnt.Connectedness != network.Connected {
|
|
t.Fatal("wrong connectedness type")
|
|
}
|
|
case evt := <-sub1.Out():
|
|
evnt := evt.(event.EvtPeerConnectednessChanged)
|
|
if evnt.Peer != id0 {
|
|
t.Fatal("wrong remote peer")
|
|
}
|
|
if evnt.Connectedness != network.Connected {
|
|
t.Fatal("wrong connectedness type")
|
|
}
|
|
case <-ctx.Done():
|
|
t.Fatal("didn't get connectedness events in time")
|
|
}
|
|
}
|
|
|
|
err = mn.DisconnectPeers(id0, id1)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for range make([]int, peers) {
|
|
select {
|
|
case evt := <-sub0.Out():
|
|
evnt := evt.(event.EvtPeerConnectednessChanged)
|
|
if evnt.Peer != id1 {
|
|
t.Fatal("wrong remote peer")
|
|
}
|
|
if evnt.Connectedness != network.NotConnected {
|
|
t.Fatal("wrong connectedness type")
|
|
}
|
|
case evt := <-sub1.Out():
|
|
evnt := evt.(event.EvtPeerConnectednessChanged)
|
|
if evnt.Peer != id0 {
|
|
t.Fatal("wrong remote peer")
|
|
}
|
|
if evnt.Connectedness != network.NotConnected {
|
|
t.Fatal("wrong connectedness type")
|
|
}
|
|
case <-ctx.Done():
|
|
t.Fatal("didn't get connectedness events in time")
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestBlockByPeerID(t *testing.T) {
|
|
m, gater1, host1, _, host2 := WithConnectionGaters(t)
|
|
|
|
err := gater1.BlockPeer(host2.ID())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
_, err = m.ConnectPeers(host1.ID(), host2.ID())
|
|
if err == nil {
|
|
t.Fatal("Should have blocked connection to banned peer")
|
|
}
|
|
|
|
_, err = m.ConnectPeers(host2.ID(), host1.ID())
|
|
if err == nil {
|
|
t.Fatal("Should have blocked connection from banned peer")
|
|
}
|
|
}
|
|
|
|
func TestBlockByIP(t *testing.T) {
|
|
m, gater1, host1, _, host2 := WithConnectionGaters(t)
|
|
|
|
ip, err := manet.ToIP(host2.Addrs()[0])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
err = gater1.BlockAddr(ip)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
_, err = m.ConnectPeers(host1.ID(), host2.ID())
|
|
if err == nil {
|
|
t.Fatal("Should have blocked connection to banned IP")
|
|
}
|
|
|
|
_, err = m.ConnectPeers(host2.ID(), host1.ID())
|
|
if err == nil {
|
|
t.Fatal("Should have blocked connection from banned IP")
|
|
}
|
|
}
|
|
|
|
func WithConnectionGaters(t *testing.T) (Mocknet, *conngater.BasicConnectionGater, host.Host, *conngater.BasicConnectionGater, host.Host) {
|
|
m := New()
|
|
addPeer := func() (*conngater.BasicConnectionGater, host.Host) {
|
|
gater, err := conngater.NewBasicConnectionGater(nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
h, err := m.GenPeerWithOptions(PeerOptions{gater: gater})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
return gater, h
|
|
}
|
|
gater1, host1 := addPeer()
|
|
gater2, host2 := addPeer()
|
|
|
|
err := m.LinkAll()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
return m, gater1, host1, gater2, host2
|
|
}
|