MAGETWO-95426: Unable to set default option for swatch attribute

Author: OlgaVasyltsun

dev/tests/functional/tests/app/Magento/Catalog/Test/Handler/CatalogProductAttribute/Curl.php

@@ -144,6 +144,10 @@ public function persist(FixtureInterface $fixture = null)
      */
     protected function changeStructureOfTheData(array $data): array
     {
+        if (!isset($data['options'])) {
+            return $data;
+        }
+
         $serializedOptions = $this->getSerializeOptions($data['options']);
         if ($serializedOptions) {
             $data['serialized_options'] = $serializedOptions;