getUpcomingInvoice: subscription_items support

Author: pkotets

composer.json

@@ -3,7 +3,7 @@
     "description": "Mock of Stripe's HttpClient which can be used in testing purposes in order to test your code and not to perform actual HTTP requests",
     "type": "library",
     "license": "MIT",
-    "version": "1.2.1",
+    "version": "1.2.2",
     "php": ">=7.4",
     "autoload": {
         "psr-4": {

src/Entity/Invoice.php

@@ -203,7 +203,9 @@ public function getUpcomingInvoice(array $params): Invoice
         $invoice = self::create('', ['customer' => $params['customer']]);
         $lines = new Collection();
 
-        foreach ($params['invoice_items'] ?? [] as $invoiceItemData) {
+        $items = $params['invoice_items'] ?? $params['subscription_items'] ?? [];
+
+        foreach ($items as $invoiceItemData) {
             if (array_key_exists('price', $invoiceItemData)) {
                 $invoiceItemData['price'] = EntityManager::retrieveEntity('price', $invoiceItemData['price']);
             }