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Fix tests: Update handlers and use httptest.Server instead #5

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Fix tests: Update handlers and use httptest.Server instead #5

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92fc12b
Fix handlers in test and user httptest server.
FSX Apr 6, 2019
99db81e
Remove unused const in test.
FSX Apr 6, 2019
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50 changes: 26 additions & 24 deletions server_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ package msgkit

import (
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"sync"
"sync/atomic"
Expand All @@ -13,45 +13,49 @@ import (
)

func TestHandler(t *testing.T) {
const addr = "localhost:17892"
const connsN = 10 // number of concurrent sockets
const msgsN = 1000 // number of messages per socket

s := NewServer(nil)

// create handlers
s.Handle("h0", func(so *Socket, msg *Message) { so.Send("h0", msg.Data) })
s.Handle("h1", func(so *Socket, msg *Message) { so.Send("h1", msg.Data) })
s.Handle("h2", func(so *Socket, msg *Message) { so.Send("h2", msg.Data) })
s.Handle("h0", func(so *Socket, msg *Message) (err error) {
so.Send("h0", msg.Data)
return
})
s.Handle("h1", func(so *Socket, msg *Message) (err error) {
so.Send("h1", msg.Data)
return
})
s.Handle("h2", func(so *Socket, msg *Message) (err error) {
so.Send("h2", msg.Data)
return
})

// count the number of opens
var opened int32
s.Handle("connected", func(_ *Socket, _ *Message) { atomic.AddInt32(&opened, 1) })
s.Handle("connected", func(_ *Socket, _ *Message) (err error) {
atomic.AddInt32(&opened, 1)
return
})

// count/wait on all closes
var cwg sync.WaitGroup
cwg.Add(connsN)
s.Handle("disconnected", func(_ *Socket, _ *Message) { cwg.Done() })
s.Handle("disconnected", func(_ *Socket, _ *Message) (err error) {
cwg.Done()
return
})

srv := &http.Server{Addr: addr}
http.Handle("/ws", s)
ts := httptest.NewServer(s)
defer ts.Close()

var swg sync.WaitGroup
swg.Add(1)
go func() {
defer swg.Done()
if err := srv.ListenAndServe(); err != nil {
if err.Error() != "http: Server closed" {
panic(err)
}
}
}()
var wg sync.WaitGroup
wg.Add(connsN)
for i := 0; i < connsN; i++ {
go func(i int) {
defer wg.Done()
u := url.URL{Scheme: "ws", Host: addr, Path: "/ws"}
u := url.URL{Scheme: "ws", Host: ts.Listener.Addr().String(), Path: "/ws"}
c, _, err := websocket.DefaultDialer.Dial(u.String(), nil)
if err != nil {
panic(err)
Expand Down Expand Up @@ -80,12 +84,10 @@ func TestHandler(t *testing.T) {
}
}(i)
}

wg.Wait()
if err := srv.Shutdown(nil); err != nil {
t.Fatal(err)
}
swg.Wait()
cwg.Wait()

if opened != connsN {
t.Fatalf("expected '%v', got '%v'", connsN, opened)
}
Expand Down