fix cookie -- not working

internal/http/middleware/session_test.go

@@ -0,0 +1,36 @@
+package middleware
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/labstack/echo/v4"
+
+	pscookie "git.ma-al.com/goc_marek/ps_shop/internal/prestashop/cookie"
+)
+
+func TestSetPrestaShopCookiePersistsExpiry(t *testing.T) {
+	e := echo.New()
+	req := httptest.NewRequest(http.MethodGet, "https://shop.example.com/product/test", nil)
+	rec := httptest.NewRecorder()
+	res := e.NewContext(req, rec).Response()
+	expiresAt := time.Now().UTC().Add(4 * time.Hour).Truncate(time.Second)
+
+	setPrestaShopCookie(req, res, &pscookie.SessionContext{
+		ExpiresAt: &expiresAt,
+	}, "PrestaShop-test", "value")
+
+	setCookie := rec.Header().Get("Set-Cookie")
+	if !strings.Contains(setCookie, "max-age=") {
+		t.Fatalf("Set-Cookie missing max-age: %q", setCookie)
+	}
+	if strings.Contains(setCookie, "Expires=") {
+		t.Fatalf("Set-Cookie should not include Expires: %q", setCookie)
+	}
+	if !strings.Contains(setCookie, "path=/") {
+		t.Fatalf("Set-Cookie missing path=/: %q", setCookie)
+	}
+}