MAGETWO-47017: [Github] Add Configurable Product To Cart from Category Page #2574 #5850 #5882 #6572 #5558

- CR changes

Author: Palamar, Mykola

dev/tests/functional/tests/app/Magento/Swatches/Test/Block/Product/ProductList/ProductItem.php

@@ -32,7 +32,8 @@ public function fillData(\Magento\ConfigurableProduct\Test\Fixture\ConfigurableP
         $checkoutData = $product->getCheckoutData();
         $options = $checkoutData['options']['configurable_options'];
         $confAttrData = $product->getDataFieldConfig('configurable_attributes_data');
-        $attributes = ($confAttrData['source'])->getAttributes();
+        $confAttrSource = $confAttrData['source'];
+        $attributes = $confAttrSource->getAttributes();
 
         foreach ($options as $option) {
             if (!isset($attributes[$option['title']])) {