forked from go-distributed/messenger
/
messenger_test.go
179 lines (144 loc) · 4.43 KB
/
messenger_test.go
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package messenger
import (
"fmt"
"math/rand"
"testing"
"time"
"code.google.com/p/gogoprotobuf/proto"
"github.com/go-distributed/messenger/codec"
example "github.com/go-distributed/messenger/codec/testexample"
"github.com/go-distributed/messenger/transporter"
"github.com/go-distributed/testify/assert"
)
var count1 int
var count2 int
var count3 int
var count4 int
// Simple message handlers used for testing.
func handler1(msg interface{}) {
count1++
}
func handler2(msg interface{}) {
count2++
}
func handler3(msg interface{}) {
count3++
}
func handler4(msg interface{}) {
count4++
}
// A simple echo server used for testing.
type echoServer struct {
m *Messenger
peerAddr string
}
func (e *echoServer) msgHandler(msg interface{}) {
e.m.Send(e.peerAddr, msg)
}
func generateMessages(n int) []proto.Message {
var m []proto.Message
for i := 0; i < n; i++ {
m1 := &example.GoGoProtobufTestMessage1{
F0: proto.Int32(int32(rand.Int())),
F1: proto.String(fmt.Sprintf("%10d", rand.Int())),
F2: proto.Float32(rand.Float32()),
}
m = append(m, m1)
m2 := &example.GoGoProtobufTestMessage2{
F0: proto.Int32(int32(rand.Int())),
F1: proto.String(fmt.Sprintf("%10d", rand.Int())),
F2: proto.Float32(rand.Float32()),
}
m = append(m, m2)
m3 := &example.GoGoProtobufTestMessage3{
F0: proto.Int32(int32(rand.Int())),
F1: proto.String(fmt.Sprintf("%10d", rand.Int())),
F2: proto.String(fmt.Sprintf("%10d", rand.Int())),
}
m = append(m, m3)
m4 := &example.GoGoProtobufTestMessage4{
F0: proto.Int32(int32(rand.Int())),
F1: proto.String(fmt.Sprintf("%10d", rand.Int())),
}
m = append(m, m4)
}
// Shuffle the messages.
for i := range m {
index := rand.Intn(i + 1)
m[i], m[index] = m[index], m[i]
}
return m
}
// Test Send() and Recv() of the messenger.
func TestSendRecv(t *testing.T) {
// Create the sender.
c := codec.NewGoGoProtobufCodec()
assert.NotNil(t, c)
tr := transporter.NewHTTPTransporter("localhost:8008")
// Should fail to create the messenger.
assert.Nil(t, New(c, tr, false, false))
m := New(c, tr, true, true)
assert.NotNil(t, m)
assert.NoError(t, m.RegisterMessage(&example.GoGoProtobufTestMessage1{}))
assert.NoError(t, m.RegisterMessage(&example.GoGoProtobufTestMessage2{}))
assert.NoError(t, m.RegisterMessage(&example.GoGoProtobufTestMessage3{}))
assert.NoError(t, m.RegisterMessage(&example.GoGoProtobufTestMessage4{}))
assert.NoError(t, m.RegisterHandler(&example.GoGoProtobufTestMessage1{}, handler1))
assert.NoError(t, m.RegisterHandler(&example.GoGoProtobufTestMessage2{}, handler2))
assert.NoError(t, m.RegisterHandler(&example.GoGoProtobufTestMessage3{}, handler3))
assert.NoError(t, m.RegisterHandler(&example.GoGoProtobufTestMessage4{}, handler4))
// Create the echo server.
c = codec.NewGoGoProtobufCodec()
assert.NotNil(t, c)
tr = transporter.NewHTTPTransporter("localhost:8009")
n := New(c, tr, false, true)
assert.NotNil(t, n)
e := &echoServer{
m: n,
peerAddr: "localhost:8008",
}
assert.NoError(t, n.RegisterMessage(&example.GoGoProtobufTestMessage1{}))
assert.NoError(t, n.RegisterMessage(&example.GoGoProtobufTestMessage2{}))
assert.NoError(t, n.RegisterMessage(&example.GoGoProtobufTestMessage3{}))
assert.NoError(t, n.RegisterMessage(&example.GoGoProtobufTestMessage4{}))
assert.NoError(t, n.RegisterHandler(&example.GoGoProtobufTestMessage1{}, e.msgHandler))
assert.NoError(t, n.RegisterHandler(&example.GoGoProtobufTestMessage2{}, e.msgHandler))
assert.NoError(t, n.RegisterHandler(&example.GoGoProtobufTestMessage3{}, e.msgHandler))
assert.NoError(t, n.RegisterHandler(&example.GoGoProtobufTestMessage4{}, e.msgHandler))
assert.NoError(t, m.Start())
assert.NoError(t, n.Start())
cnt := 10
messages := generateMessages(cnt)
go func() {
for i := range messages {
m.Send("localhost:8009", messages[i])
}
}()
var recvMessages []interface{}
wait := make(chan struct{})
go func() {
for {
select {
case <-wait:
return
default:
}
msg, err := m.Recv()
assert.NoError(t, err)
recvMessages = append(recvMessages, msg)
}
}()
<-time.After(time.Second * 5)
for i := range messages {
assert.Equal(t, messages[i], recvMessages[i])
}
// Verify that the handlers are called.
assert.Equal(t, cnt, count1)
assert.Equal(t, cnt, count2)
assert.Equal(t, cnt, count3)
assert.Equal(t, cnt, count4)
assert.NoError(t, m.Stop())
assert.NoError(t, n.Stop())
assert.NoError(t, m.Destroy())
assert.NoError(t, n.Destroy())
}