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Older
"testing"
"time"
"gfx.cafe/open/jrpc"
"gfx.cafe/open/jrpc/contrib/codecs"
"gfx.cafe/open/jrpc/contrib/jmux"
"gfx.cafe/open/jrpc/pkg/jsonrpc"
"gfx.cafe/open/jrpc/pkg/server"
)
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func TestSubscription(t *testing.T) {
go func() {
t.Error(http.ListenAndServe(":6060", nil))
}()
const count = 100
engine := NewEngine()
r := jmux.NewRouter()
r.Use(engine.Middleware())
r.HandleFunc("test/subscribe", func(w jsonrpc.ResponseWriter, r *jsonrpc.Request) {
notifier, ok := NotifierFromContext(r.Context())
if !ok {
_ = w.Send(nil, ErrNotificationsUnsupported)
return
}
for i := 0; i < count; i++ {
if err := notifier.Notify(i); err != nil {
panic(err)
}
}
})
srv := server.NewServer(r)
handler := codecs.WebsocketHandler(srv, []string{"*"})
httpSrv := http.Server{
Addr: ":8855",
Handler: handler,
}
listener, err := net.Listen("tcp", ":8855")
if err != nil {
t.Error(err)
return
}
go func() {
if err := httpSrv.Serve(listener); err != nil {
t.Error(err)
return
}
}()
cl, err := UpgradeConn(jrpc.Dial("ws://localhost:8855"))
if err != nil {
t.Error(err)
return
}
ch := make(chan int, count)
sub, err := cl.Subscribe(context.Background(), "test", ch, nil)
defer func() {
if err = sub.Unsubscribe(); err != nil {
t.Error(err)
}
}()
for i := 0; i < count; i++ {
v := <-ch
if v != i {
t.Errorf("expected %d but got %d", i, v)
}
}
}
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func TestWrapClient(t *testing.T) {
engine := NewEngine()
r := jmux.NewRouter()
r.Use(engine.Middleware())
r.HandleFunc("echo", func(w jsonrpc.ResponseWriter, r *jsonrpc.Request) {
_ = w.Send(r.Params, nil)
})
// extremely fast subscription to fill buffers to get a higher chance that we receive another message while trying
// to unsubscribe
r.HandleFunc("test/subscribe", func(w jsonrpc.ResponseWriter, r *jsonrpc.Request) {
notifier, ok := NotifierFromContext(r.Context())
if !ok {
_ = w.Send(nil, ErrNotificationsUnsupported)
return
}
go func() {
idx := 0
for {
select {
case <-r.Context().Done():
return
case <-notifier.Err():
return
default:
}
_ = notifier.Notify(idx)
idx += 1
}
}()
})
srv := server.NewServer(r)
handler := codecs.WebsocketHandler(srv, []string{"*"})
httpSrv := http.Server{
Addr: ":8855",
Handler: handler,
}
listener, err := net.Listen("tcp", ":8855")
if err != nil {
t.Error(err)
return
}
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t.Error(err)
return
}
}()
cl, err := UpgradeConn(jrpc.Dial("ws://localhost:8855"))
if err != nil {
t.Error(err)
return
}
for i := 0; i < 10; i++ {
var res string
if err = cl.Do(context.Background(), &res, "echo", "test"); err != nil {
t.Error(err)
return
}
if res != "test" {
t.Errorf(`expected "test" but got %#v`, res)
return
}
ch := make(chan int, 1)
sub, err := cl.Subscribe(context.Background(), "test", ch, nil)
if err != nil {
t.Error(err)
return
}
go func() {
time.Sleep(2 * time.Second)
_ = sub.Unsubscribe()
}()
func() {
for {
select {
case err, ok := <-sub.Err():
if ok {
t.Errorf("sub errored: %v", err)
}
return
case v := <-ch:
log.Printf("%v", v)
}
}
}()
}
}