/
rpc_test.go
114 lines (90 loc) · 1.91 KB
/
rpc_test.go
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package amqprpc
import (
"flag"
"log"
"math/rand"
"net/rpc"
"sync"
"testing"
"time"
"github.com/streadway/amqp"
)
var (
url = flag.String("url", "amqp://guest:guest@localhost:5672/", "AMQP queue URL")
queue = flag.String("queue", "rpc_queue", "queue name")
rpcCalls = flag.Int("calls", 10, "number of RPC calls to do")
)
func init() {
log.SetFlags(log.Lshortfile)
flag.Parse()
}
type RPC int
func (RPC) Add(args Args, reply *int) error {
r := rand.Intn(10)
time.Sleep(time.Duration(r) * time.Millisecond)
*reply = args.A + args.B
return nil
}
type Args struct {
A, B int
}
func TestRPC(b *testing.T) {
conn, err := amqp.Dial(*url)
if err != nil {
b.Fatal(err)
}
serverCodec, err := NewServerCodec(conn, *queue, JSONCodec{})
if err != nil {
b.Fatal(err)
}
server := rpc.NewServer()
err = server.Register(new(RPC))
if err != nil {
b.Fatal(err)
}
go func() { server.ServeCodec(serverCodec) }()
var clientCodecs []rpc.ClientCodec
var clients []*rpc.Client
wait := new(sync.WaitGroup)
mu := new(sync.Mutex)
wait.Add(10)
for i := 0; i < 10; i++ {
go func() {
conn, err := amqp.Dial(*url)
if err != nil {
b.Fatal(err)
}
codec, err := NewClientCodec(conn, *queue, JSONCodec{})
if err != nil {
b.Fatal(err)
}
mu.Lock()
clientCodecs = append(clientCodecs, codec)
clients = append(clients, rpc.NewClientWithCodec(codec))
mu.Unlock()
wait.Done()
}()
}
wait.Wait()
for i := 0; i < 10; i++ {
wait.Add(10)
go func() {
for _, client := range clients {
go doCall(b, client, wait)
}
}()
}
wait.Wait()
}
func doCall(b *testing.T, client *rpc.Client, wait *sync.WaitGroup) {
num1, num2 := rand.Intn(10000000), rand.Intn(10000000)
reply := new(int)
err := client.Call("RPC.Add", Args{num1, num2}, reply)
if err != nil {
b.Fatal(err)
}
if num1+num2 != *reply {
b.Fatalf("%d + %d != %d", num1, num2, *reply)
}
wait.Done()
}