herald.go/server/federation_test.go

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package server
import (
"bufio"
"context"
"fmt"
"log"
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"net"
"os"
"strings"
"testing"
"github.com/lbryio/hub/internal/metrics"
pb "github.com/lbryio/hub/protobuf/go"
dto "github.com/prometheus/client_model/go"
"google.golang.org/grpc"
)
// lineCountFile takes a fileName and counts the number of lines in it.
func lineCountFile(fileName string) int {
f, err := os.Open(fileName)
defer f.Close()
if err != nil {
log.Println(err)
return 0
}
scanner := bufio.NewScanner(f)
scanner.Split(bufio.ScanLines)
var lineCount = 0
for scanner.Scan() {
scanner.Text()
lineCount = lineCount + 1
}
return lineCount
}
// removeFile removes a file.
func removeFile(fileName string) {
err := os.Remove(fileName)
if err != nil {
log.Println(err)
}
}
func makeDefaultArgs() *Args {
args := &Args{
CmdType: ServeCmd,
Host: DefaultHost,
Port: DefaultPort,
EsHost: DefaultEsHost,
EsPort: DefaultEsPort,
PrometheusPort: DefaultPrometheusPort,
EsIndex: DefaultEsIndex,
RefreshDelta: DefaultRefreshDelta,
CacheTTL: DefaultCacheTTL,
PeerFile: DefaultPeerFile,
Country: DefaultCountry,
DisableEs: true,
Debug: true,
LoadPeers: false,
StartPrometheus: false,
StartUDP: false,
WritePeers: false,
}
return args
}
// TestAddPeer tests the ability to add peers
func TestAddPeer(t *testing.T) {
ctx := context.Background()
args := makeDefaultArgs()
tests := []struct {
name string
want int
} {
{
name: "Add 10 peers",
want: 10,
},
{
name: "Add 10 peers, 1 unique",
want: 1,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T){
server := MakeHubServer(ctx, args)
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server.ExternalIP = net.IPv4(0,0,0,0)
metrics.PeersKnown.Set(0)
for i := 0; i < 10; i++ {
var msg *pb.ServerMessage
if strings.Contains(tt.name, "1 unique") {
msg = &pb.ServerMessage{
Address: "1.1.1.1",
Port: "50051",
}
} else {
x := i + 1
msg = &pb.ServerMessage{
Address: fmt.Sprintf("%d.%d.%d.%d", x, x, x, x),
Port: "50051",
}
}
//log.Printf("Adding peer %+v\n", msg)
err := server.addPeer(msg, false, false)
if err != nil {
log.Println(err)
}
}
var m = &dto.Metric{}
if err := metrics.PeersKnown.Write(m); err != nil {
t.Errorf("Error getting metrics %+v\n", err)
}
got := int(*m.Gauge.Value)
if got != tt.want {
t.Errorf("len(server.PeerServers) = %d, want %d\n", got, tt.want)
}
})
}
}
// TestPeerWriter tests that peers get written properly
func TestPeerWriter(t *testing.T) {
ctx := context.Background()
args := makeDefaultArgs()
args.WritePeers = true
tests := []struct {
name string
want int
} {
{
name: "Add 10 peers",
want: 10,
},
{
name: "Add 10 peers, 1 unique",
want: 1,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T){
server := MakeHubServer(ctx, args)
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server.ExternalIP = net.IPv4(0,0,0,0)
for i := 0; i < 10; i++ {
var msg *pb.ServerMessage
if strings.Contains(tt.name, "1 unique") {
msg = &pb.ServerMessage{
Address: "1.1.1.1",
Port: "50051",
}
} else {
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x := i + 1
msg = &pb.ServerMessage{
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Address: fmt.Sprintf("%d.%d.%d.%d", x, x, x, x),
Port: "50051",
}
}
//log.Printf("Adding peer %+v\n", msg)
err := server.addPeer(msg, false, false)
if err != nil {
log.Println(err)
}
}
//log.Println("Counting lines...")
got := lineCountFile(server.Args.PeerFile)
if got != tt.want {
t.Errorf("lineCountFile(peers.txt) = %d, want %d", got, tt.want)
}
})
}
removeFile(args.PeerFile)
}
// TestAddPeerEndpoint tests the ability to add peers
func TestAddPeerEndpoint(t *testing.T) {
ctx := context.Background()
args := makeDefaultArgs()
args2 := makeDefaultArgs()
args2.Port = "50052"
tests := []struct {
name string
wantServerOne int64
wantServerTwo int64
} {
{
// outside -> server1.AddPeer(server2, ping=true) : server1 = 1, server2 = 0
// server1 -> server2.Hello(server1) : server1 = 1, server2 = 0
// server2 -> server2.addPeer(server1, ping=false) : server1 = 1, server2 = 1
// server2 -> server1.PeerSubscribe(server2) : server1 = 1, server2 = 1
// server1 <- server2.makeHelloMessage() : server1 = 1, server2 = 1
// server1.notifyPeer() : server1 = 1, server2 = 1
// server1 -> server2.AddPeer(server2) : server1 = 1, server2 = 1
// server2 self peer, skipping : server1 = 1, server2 = 1
// server1 -> server2.PeerSubscribe(server1) : server1 = 1, server2 = 1
name: "Add 1 peer",
wantServerOne: 1,
wantServerTwo: 1,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T){
server := MakeHubServer(ctx, args)
server2 := MakeHubServer(ctx, args2)
metrics.PeersKnown.Set(0)
go server.Run()
go server2.Run()
//go server.Run()
conn, err := grpc.Dial("localhost:"+args.Port,
grpc.WithInsecure(),
grpc.WithBlock(),
)
if err != nil {
log.Fatalf("did not connect: %v", err)
}
c := pb.NewHubClient(conn)
msg := &pb.ServerMessage{
Address: "0.0.0.0",
Port: "50052",
}
_, err = c.AddPeer(context.Background(), msg)
if err != nil {
log.Println(err)
}
server.GrpcServer.GracefulStop()
server2.GrpcServer.GracefulStop()
got1 := server.getNumPeers()
got2 := server2.getNumPeers()
if got1 != tt.wantServerOne {
t.Errorf("len(server.PeerServers) = %d, want %d\n", got1, tt.wantServerOne)
}
if got2 != tt.wantServerTwo {
t.Errorf("len(server2.PeerServers) = %d, want %d\n", got2, tt.wantServerTwo)
}
})
}
}
// TestAddPeerEndpoint2 tests the ability to add peers
func TestAddPeerEndpoint2(t *testing.T) {
ctx := context.Background()
args := makeDefaultArgs()
args2 := makeDefaultArgs()
args3 := makeDefaultArgs()
args2.Port = "50052"
args3.Port = "50053"
tests := []struct {
name string
wantServerOne int64
wantServerTwo int64
wantServerThree int64
} {
{
name: "Add 2 peers",
wantServerOne: 2,
wantServerTwo: 2,
wantServerThree: 2,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T){
server := MakeHubServer(ctx, args)
server2 := MakeHubServer(ctx, args2)
server3 := MakeHubServer(ctx, args3)
metrics.PeersKnown.Set(0)
go server.Run()
go server2.Run()
go server3.Run()
conn, err := grpc.Dial("localhost:"+args.Port,
grpc.WithInsecure(),
grpc.WithBlock(),
)
if err != nil {
log.Fatalf("did not connect: %v", err)
}
c := pb.NewHubClient(conn)
msg := &pb.ServerMessage{
Address: "0.0.0.0",
Port: "50052",
}
msg2 := &pb.ServerMessage{
Address: "0.0.0.0",
Port: "50053",
}
_, err = c.AddPeer(context.Background(), msg)
if err != nil {
log.Println(err)
}
_, err = c.AddPeer(context.Background(), msg2)
if err != nil {
log.Println(err)
}
server.GrpcServer.GracefulStop()
server2.GrpcServer.GracefulStop()
server3.GrpcServer.GracefulStop()
got1 := server.getNumPeers()
got2 := server2.getNumPeers()
got3 := server3.getNumPeers()
if got1 != tt.wantServerOne {
t.Errorf("len(server.PeerServers) = %d, want %d\n", got1, tt.wantServerOne)
}
if got2 != tt.wantServerTwo {
t.Errorf("len(server2.PeerServers) = %d, want %d\n", got2, tt.wantServerTwo)
}
if got3 != tt.wantServerThree {
t.Errorf("len(server3.PeerServers) = %d, want %d\n", got3, tt.wantServerThree)
}
})
}
}
// TestAddPeerEndpoint3 tests the ability to add peers
func TestAddPeerEndpoint3(t *testing.T) {
ctx := context.Background()
args := makeDefaultArgs()
args2 := makeDefaultArgs()
args3 := makeDefaultArgs()
args2.Port = "50052"
args3.Port = "50053"
tests := []struct {
name string
wantServerOne int64
wantServerTwo int64
wantServerThree int64
} {
{
name: "Add 1 peer to each",
wantServerOne: 2,
wantServerTwo: 2,
wantServerThree: 2,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T){
server := MakeHubServer(ctx, args)
server2 := MakeHubServer(ctx, args2)
server3 := MakeHubServer(ctx, args3)
metrics.PeersKnown.Set(0)
go server.Run()
go server2.Run()
go server3.Run()
conn, err := grpc.Dial("localhost:"+args.Port,
grpc.WithInsecure(),
grpc.WithBlock(),
)
if err != nil {
log.Fatalf("did not connect: %v", err)
}
conn2, err := grpc.Dial("localhost:50052",
grpc.WithInsecure(),
grpc.WithBlock(),
)
if err != nil {
log.Fatalf("did not connect: %v", err)
}
c := pb.NewHubClient(conn)
c2 := pb.NewHubClient(conn2)
msg := &pb.ServerMessage{
Address: "0.0.0.0",
Port: "50052",
}
msg2 := &pb.ServerMessage{
Address: "0.0.0.0",
Port: "50053",
}
_, err = c.AddPeer(context.Background(), msg)
if err != nil {
log.Println(err)
}
_, err = c2.AddPeer(context.Background(), msg2)
if err != nil {
log.Println(err)
}
server.GrpcServer.GracefulStop()
server2.GrpcServer.GracefulStop()
server3.GrpcServer.GracefulStop()
got1 := server.getNumPeers()
got2 := server2.getNumPeers()
got3 := server3.getNumPeers()
if got1 != tt.wantServerOne {
t.Errorf("len(server.PeerServers) = %d, want %d\n", got1, tt.wantServerOne)
}
if got2 != tt.wantServerTwo {
t.Errorf("len(server2.PeerServers) = %d, want %d\n", got2, tt.wantServerTwo)
}
if got3 != tt.wantServerThree {
t.Errorf("len(server3.PeerServers) = %d, want %d\n", got3, tt.wantServerThree)
}
})
}
}
// TestAddPeer tests the ability to add peers
func TestUDPServer(t *testing.T) {
ctx := context.Background()
args := makeDefaultArgs()
args.StartUDP = true
args2 := makeDefaultArgs()
args2.Port = "50052"
args2.StartUDP = true
tests := []struct {
name string
want string
} {
{
name: "hubs server external ip",
want: "127.0.0.1",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T){
server := MakeHubServer(ctx, args)
server2 := MakeHubServer(ctx, args2)
go server.Run()
go server2.Run()
metrics.PeersKnown.Set(0)
msg := &pb.ServerMessage{
Address: "0.0.0.0",
Port: "50052",
}
err := server.addPeer(msg, true, true)
if err != nil {
log.Println(err)
}
server.GrpcServer.GracefulStop()
server2.GrpcServer.GracefulStop()
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got1 := server.ExternalIP.String()
if got1 != tt.want {
t.Errorf("server.ExternalIP = %s, want %s\n", got1, tt.want)
t.Errorf("server.Args.Port = %s\n", server.Args.Port)
}
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got2 := server2.ExternalIP.String()
if got2 != tt.want {
t.Errorf("server2.ExternalIP = %s, want %s\n", got2, tt.want)
t.Errorf("server2.Args.Port = %s\n", server2.Args.Port)
}
})
}
}