Files
im_server/loadtest/im-pressure/agent_reconnect_test.go
T

89 lines
2.3 KiB
Go

package main
import (
"context"
"encoding/json"
"net/http"
"net/http/httptest"
"strings"
"sync/atomic"
"testing"
"time"
"github.com/gorilla/websocket"
)
func TestMaintainConnectionsRestoresClosedClient(t *testing.T) {
var connections atomic.Int64
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
conn, err := (&websocket.Upgrader{}).Upgrade(w, r, nil)
if err != nil {
return
}
connections.Add(1)
defer conn.Close()
for {
var packet map[string]json.RawMessage
if err = conn.ReadJSON(&packet); err != nil {
return
}
for _, raw := range packet {
var body struct {
ID string `json:"id"`
}
if json.Unmarshal(raw, &body) != nil || body.ID == "" {
continue
}
response := map[string]any{"ctrl": map[string]any{
"id": body.ID, "code": 200, "text": "ok",
"params": map[string]any{"user": "usrReconnectTest"},
}}
if err = conn.WriteJSON(response); err != nil {
return
}
}
}
}))
defer server.Close()
account := AccountRecord{
Machine: "a", Index: 1, Username: "lta0001", Token: "token",
P2PTopic: "p2pReconnectTest", Endpoint: "ws" + strings.TrimPrefix(server.URL, "http"),
}
cfg := &Config{Tenant: "allrich", CommandTimeout: "1s", WSPingInterval: "1h"}
run := &agentRun{
cfg: cfg, machine: "a", clients: make(map[int]*WSClient),
recorder: newDeliveryRecorder("pending", "a", 1), ack: NewDurationHistogram(),
}
initial, err := run.connectAccountWithRetry(context.Background(), account, "grpReconnectTest", "api-key", "")
if err != nil {
t.Fatal(err)
}
run.setClient(account.Index, initial)
initial.Close()
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
done := make(chan struct{})
go func() {
run.maintainConnections(ctx, []AccountRecord{account}, "grpReconnectTest", "api-key", "")
close(done)
}()
deadline := time.Now().Add(3 * time.Second)
for time.Now().Before(deadline) {
if replacement := run.client(account.Index); replacement != initial && replacement.alive() {
cancel()
<-done
run.close()
if got := connections.Load(); got < 2 {
t.Fatalf("websocket connections = %d, want at least 2", got)
}
return
}
time.Sleep(10 * time.Millisecond)
}
cancel()
<-done
run.close()
t.Fatal("closed client was not restored before deadline")
}