feat(proxy): add HTTP to HTTPS redirection support

server/proxy/idle_watcher_test.go

@@ -0,0 +1,52 @@
+package proxy
+
+import (
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestIdleWatcherClosesAfterTimeout(t *testing.T) {
+	closed := make(chan struct{})
+	w := startIdleWatcher(50*time.Millisecond, func() {
+		close(closed)
+	})
+	defer w.stop()
+
+	select {
+	case <-closed:
+	case <-time.After(time.Second):
+		t.Fatal("closeFn was not called after idle timeout")
+	}
+}
+
+func TestIdleWatcherTouchPostponesClose(t *testing.T) {
+	var closedFlag atomic.Bool
+	w := startIdleWatcher(100*time.Millisecond, func() {
+		closedFlag.Store(true)
+	})
+	defer w.stop()
+
+	// keep the connection "active" well past the timeout
+	for range 6 {
+		time.Sleep(30 * time.Millisecond)
+		w.touch()
+	}
+	require.False(t, closedFlag.Load(), "closeFn fired despite ongoing activity")
+
+	// once activity stops, it should still close
+	require.Eventually(t, closedFlag.Load, time.Second, 10*time.Millisecond)
+}
+
+func TestIdleWatcherStopPreventsClose(t *testing.T) {
+	var closedFlag atomic.Bool
+	w := startIdleWatcher(50*time.Millisecond, func() {
+		closedFlag.Store(true)
+	})
+	w.stop()
+
+	time.Sleep(150 * time.Millisecond)
+	require.False(t, closedFlag.Load(), "closeFn fired after watcher was stopped")
+}