MAGETWO-59953: [Backport] Configurable product option price is displayed incorrectly per website for 2.1.3

- add integration test

Author: vnayda

dev/tests/integration/testsuite/Magento/ConfigurableProduct/Pricing/Price/LowestPriceOptionProviderTest.php

@@ -68,6 +68,38 @@ public function testGetProductsIfOneOfChildIsDisabled()
         $this->assertEquals(20, $lowestPriceChildrenProduct->getPrice());
     }
 
+    /**
+     * @magentoDataFixture Magento/ConfigurableProduct/_files/product_configurable.php
+     */
+    public function testGetProductsIfOneOfChildIsDisabledPerWebsite()
+    {
+        $configurableProduct = $this->productRepository->getById(1, false, null, true);
+        $lowestPriceChildrenProducts = $this->lowestPriceOptionsProvider->getProducts($configurableProduct);
+        $this->assertCount(1, $lowestPriceChildrenProducts);
+        $lowestPriceChildrenProduct = reset($lowestPriceChildrenProducts);
+        $this->assertEquals(10, $lowestPriceChildrenProduct->getPrice());
+
+        // load full aggregation root
+        $lowestPriceChildProduct = $this->productRepository->get(
+            $lowestPriceChildrenProduct->getSku(),
+            false,
+            null,
+            true
+        );
+        $lowestPriceChildProduct->setStatus(Status::STATUS_DISABLED);
+        // update in default store scope
+        $currentStoreId = $this->storeManager->getStore()->getId();
+        $defaultStore = $this->storeManager->getDefaultStoreView();
+        $this->storeManager->setCurrentStore($defaultStore->getId());
+        $this->productRepository->save($lowestPriceChildProduct);
+        $this->storeManager->setCurrentStore($currentStoreId);
+
+        $lowestPriceChildrenProducts = $this->lowestPriceOptionsProvider->getProducts($configurableProduct);
+        $this->assertCount(1, $lowestPriceChildrenProducts);
+        $lowestPriceChildrenProduct = reset($lowestPriceChildrenProducts);
+        $this->assertEquals(20, $lowestPriceChildrenProduct->getPrice());
+    }
+
     /**
      * @magentoDataFixture Magento/ConfigurableProduct/_files/product_configurable.php
      */