func TestNonPointerRequest(t *testing.T) {
c, s := net.Pipe()
defer c.Close()
registry := birpc.NewRegistry()
registry.RegisterService(NonPointerRequest{})
server := birpc.NewEndpoint(jsonmsg.NewCodec(s), registry)
server_err := make(chan error)
go func() {
server_err <- server.Serve()
}()
io.WriteString(c, `{"id": "42", "fn": "NonPointerRequest.NonPointer", "args": 13}`+"\n")
var reply LowLevelReply
dec := json.NewDecoder(c)
if err := dec.Decode(&reply); err != nil && err != io.EOF {
t.Fatalf("decode failed: %s", err)
}
t.Logf("reply msg: %#v", reply)
if reply.Error != nil {
t.Fatalf("unexpected error response: %v", reply.Error)
}
if string(reply.Result) != `13` {
t.Fatalf("got wrong answer: %v", reply.Result)
}
c.Close()
err := <-server_err
if err != io.EOF {
t.Fatalf("unexpected error from ServeCodec: %v", err)
}
}
func TestUnmarshalArgsError(t *testing.T) {
c, s := net.Pipe()
defer c.Close()
registry := birpc.NewRegistry()
registry.RegisterService(WordLength{})
server := birpc.NewEndpoint(jsonmsg.NewCodec(s), registry)
server_err := make(chan error)
go func() {
server_err <- server.Serve()
}()
const REQ = `{"id": "42", "fn": "WordLength.Len", "args": "evil"}` + "\n"
io.WriteString(c, REQ)
var reply LowLevelReply
dec := json.NewDecoder(c)
if err := dec.Decode(&reply); err != nil && err != io.EOF {
t.Fatalf("decode failed: %s", err)
}
t.Logf("reply msg: %#v", reply)
if reply.Error == nil {
t.Fatalf("expected an error")
}
if reply.Result != nil {
t.Fatalf("got unexpected result: %v", reply.Result)
}
c.Close()
err := <-server_err
if err != io.EOF {
t.Fatalf("unexpected error from ServeCodec: %v", err)
}
}
func main() {
prog := path.Base(os.Args[0])
log.SetFlags(0)
log.SetPrefix(prog + ": ")
flag.Usage = Usage
flag.Parse()
if flag.NArg() > 0 {
Usage()
os.Exit(1)
}
log.Printf("Serving at http://%s:%d/", *host, *port)
chat := Chat{}
chat.broadcast = topic.New()
chat.registry = birpc.NewRegistry()
chat.registry.RegisterService(&chat)
defer close(chat.broadcast.Broadcast)
upgrader := websocket.Upgrader{}
serve := func(w http.ResponseWriter, req *http.Request) {
ws, err := upgrader.Upgrade(w, req, nil)
if err != nil {
log.Println(err)
return
}
endpoint := wetsock.NewEndpoint(chat.registry, ws)
messages := make(chan interface{}, 10)
chat.broadcast.Register(messages)
go func() {
defer chat.broadcast.Unregister(messages)
for i := range messages {
msg := i.(Outgoing)
// Fire-and-forget.
// TODO use .Notify when it exists
_ = endpoint.Go("Chat.Message", msg, nil, nil)
}
// broadcast topic kicked us out for being too slow;
// probably a hung TCP connection. let client
// re-establish.
log.Printf("Kicking slow client: %v", ws.RemoteAddr())
ws.Close()
}()
if err := endpoint.Serve(); err != nil {
log.Printf("websocket error from %v: %v", ws.RemoteAddr(), err)
}
}
http.HandleFunc("/sock", serve)
http.Handle("/", http.HandlerFunc(index))
addr := fmt.Sprintf("%s:%d", *host, *port)
err := http.ListenAndServe(addr, nil)
if err != nil {
log.Fatal(err)
}
}
func TestRegisterBadMultiReturn(t *testing.T) {
registry := birpc.NewRegistry()
testPanic(
t,
func() { registry.RegisterService(MultiReturn{}) },
"birpc.RegisterService: method birpc_test.MultiReturn.MultiReturn must return error",
)
}
func TestRegisterBadNonPointerReply(t *testing.T) {
registry := birpc.NewRegistry()
testPanic(
t,
func() { registry.RegisterService(NonPointerReply{}) },
"birpc.RegisterService: method birpc_test.NonPointerReply.NonPointer reply argument must be a pointer type",
)
}
func TestRegisterBadTooFewArguments(t *testing.T) {
registry := birpc.NewRegistry()
testPanic(
t,
func() { registry.RegisterService(TooFewArguments{}) },
"birpc.RegisterService: method birpc_test.TooFewArguments.TooFew is missing request/reply arguments",
)
}
func TestServerError(t *testing.T) {
c, s := net.Pipe()
defer c.Close()
registry := birpc.NewRegistry()
registry.RegisterService(Failing{})
server := birpc.NewEndpoint(jsonmsg.NewCodec(s), registry)
server_err := make(chan error)
go func() {
server_err <- server.Serve()
}()
const REQ = `{"id": "42", "fn": "Failing.Fail", "args": {}}` + "\n"
io.WriteString(c, REQ)
var reply LowLevelReply
dec := json.NewDecoder(c)
if err := dec.Decode(&reply); err != nil && err != io.EOF {
t.Fatalf("decode failed: %s", err)
}
t.Logf("reply msg: %#v", reply)
if reply.Error == nil {
t.Fatalf("expected an error")
}
if g, e := reply.Error.Msg, "intentional"; g != e {
t.Fatalf("unexpected error response: %q != %q", g, e)
}
if reply.Result != nil {
t.Fatalf("got unexpected result: %v", reply.Result)
}
c.Close()
err := <-server_err
if err != io.EOF {
t.Fatalf("unexpected error from ServeCodec: %v", err)
}
}
func TestFillArgsError(t *testing.T) {
c, s := net.Pipe()
defer c.Close()
registry := birpc.NewRegistry()
// just need anything with >2 parameters
registry.RegisterService(&EndpointPeer{})
jsonCodec := jsonmsg.NewCodec(s)
codec := BadFillArgsCodec{jsonCodec}
server := birpc.NewEndpoint(codec, registry)
server_err := make(chan error)
go func() {
server_err <- server.Serve()
}()
io.WriteString(c, `{"id":"42","fn":"EndpointPeer.Poke","args":{}}`)
var reply LowLevelReply
dec := json.NewDecoder(c)
if err := dec.Decode(&reply); err != nil && err != io.EOF {
t.Fatalf("decode failed: %s", err)
}
t.Logf("reply msg: %#v", reply)
if reply.Error == nil {
t.Fatalf("expected an error")
}
if reply.Result != nil {
t.Fatalf("got unexpected result: %v", reply.Result)
}
c.Close()
err := <-server_err
if err != io.EOF {
t.Fatalf("unexpected error from ServeCodec: %v", err)
}
}
func TestServerEndpointArg(t *testing.T) {
peer := &EndpointPeer{}
registry := birpc.NewRegistry()
registry.RegisterService(peer)
c, s := net.Pipe()
defer c.Close()
server := birpc.NewEndpoint(jsonmsg.NewCodec(s), registry)
server_err := make(chan error)
go func() {
server_err <- server.Serve()
}()
io.WriteString(c, `{"id":"42","fn":"EndpointPeer.Poke","args":{}}`)
var reply LowLevelReply
dec := json.NewDecoder(c)
if err := dec.Decode(&reply); err != nil && err != io.EOF {
t.Fatalf("decode failed: %s", err)
}
t.Logf("reply msg: %#v", reply)
if reply.Error != nil {
t.Fatalf("unexpected error response: %v", reply.Error)
}
c.Close()
err := <-server_err
if err != io.EOF {
t.Fatalf("unexpected error from ServeCodec: %v", err)
}
if peer.seen == nil {
t.Fatalf("peer never saw a birpc.Endpoint")
}
}
func makeRegistry() *birpc.Registry {
r := birpc.NewRegistry()
r.RegisterService(WordLength{})
return r
}