add test batches

app/Http/Controllers/Api/ExtraCharges/ExtraChargesController.php

@@ -103,7 +103,7 @@ class ExtraChargesController extends BaseApiController
     public function update(UpdateExtraChargeRequest $request, int $id): JsonResponse
     {
         $charge = AdditionalCharge::query()->find($id);
-        if (! $charge) {
+        if (!$charge) {
             return response()->json(['ok' => false, 'error' => 'Charge not found'], 404);
         }
 
@@ -126,7 +126,7 @@ class ExtraChargesController extends BaseApiController
     public function void(int $id): JsonResponse
     {
         $charge = AdditionalCharge::query()->find($id);
-        if (! $charge) {
+        if (!$charge) {
             return response()->json(['ok' => false, 'error' => 'Charge not found'], 404);
         }
 
@@ -140,7 +140,7 @@ class ExtraChargesController extends BaseApiController
     public function reverse(int $id): JsonResponse
     {
         $charge = AdditionalCharge::query()->find($id);
-        if (! $charge) {
+        if (!$charge) {
             return response()->json(['ok' => false, 'error' => 'Charge not found'], 404);
         }
 
@@ -151,6 +151,9 @@ class ExtraChargesController extends BaseApiController
         ], $ok ? 200 : 422);
     }
 
+    /**
+     * @return int|JsonResponse
+     */
     private function authenticatedUserIdOrUnauthorized(): int|JsonResponse
     {
         $userId = (int) (auth()->id() ?? 0);