MAGETWO-72582: Configurable product displays the price of "out of stock" configuration

Author: Dmytro Voskoboinikov

dev/tests/functional/tests/app/Magento/ConfigurableProduct/Test/Constraint/AssertConfigurableProductOutOfStockPage.php

@@ -61,8 +61,9 @@ protected function getLowestConfigurablePrice()
 
         if (null === $price) {
             $configurableOptions = $this->product->getConfigurableAttributesData();
-            foreach ($configurableOptions['matrix'] as $option) {
-                if ($option['quantity_and_stock_status']['is_in_stock'] !== 'Out of Stock') {
+            $products = $this->product->getDataFieldConfig('configurable_attributes_data')['source']->getProducts();
+            foreach ($configurableOptions['matrix'] as $key => $option) {
+                if ($products[$key]->getQuantityAndStockStatus()['is_in_stock'] !== 'Out of Stock') {
                     $price = $price === null ? $option['price'] : $price;
                     if ($price > $option['price']) {
                         $price = $option['price'];