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main_test.go

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package main

import (

"encoding/json"

"net"

"net/http"

"net/http/httptest"

"net/url"

"path/filepath"

"strconv"

"testing"

"time"

"grok_switch/internal/settings"

)

func TestWaitForExistingInstanceURL(t *testing.T) {

dataDir := filepath.Join(t.TempDir(), ".grok_switch")

server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

if r.URL.Path != "/api/status" {

http.NotFound(w, r)

return

}

_ = json.NewEncoder(w).Encode(map[string]string{"data_dir": dataDir})

}))

defer server.Close()

parsed, err := url.Parse(server.URL)

if err != nil {

t.Fatal(err)

}

_, rawPort, err := net.SplitHostPort(parsed.Host)

if err != nil {

t.Fatal(err)

}

port, err := strconv.Atoi(rawPort)

if err != nil {

t.Fatal(err)

}

store := settings.NewStore(filepath.Join(dataDir, "settings.json"))

current := settings.Default()

current.Port = port

current.ActualPort = port

if _, err := store.Update(current); err != nil {

t.Fatal(err)

}

got, err := waitForExistingInstanceURL(store, dataDir, time.Second)

if err != nil {

t.Fatal(err)

}

if got != server.URL {

t.Fatalf("URL = %q, want %q", got, server.URL)

}

}