MAGETWO-83204: "Hide from Product Page" option does not work for child of configurable product

Author: dhorytskyi

app/code/Magento/ConfigurableProduct/Test/Unit/Model/Plugin/ProductIdentitiesExtenderTest.php

@@ -0,0 +1,78 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\ConfigurableProduct\Test\Unit\Model\Plugin;
+
+use Magento\ConfigurableProduct\Model\Plugin\ProductIdentitiesExtender;
+use Magento\ConfigurableProduct\Model\Product\Type\Configurable;
+use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Catalog\Model\Product;
+
+/**
+ * Class ProductIdentitiesExtenderTest
+ */
+class ProductIdentitiesExtenderTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var \PHPUnit_Framework_MockObject_MockObject|Configurable
+     */
+    private $configurableTypeMock;
+
+    /**
+     * @var \PHPUnit_Framework_MockObject_MockObject|ProductRepositoryInterface
+     */
+    private $productRepositoryMock;
+
+    /**
+     * @var ProductIdentitiesExtender
+     */
+    private $plugin;
+
+    protected function setUp()
+    {
+        $this->configurableTypeMock = $this->getMockBuilder(Configurable::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->productRepositoryMock = $this->getMockBuilder(ProductRepositoryInterface::class)
+            ->getMock();
+
+        $this->plugin = new ProductIdentitiesExtender($this->configurableTypeMock, $this->productRepositoryMock);
+    }
+
+    public function testAroundGetIdentities()
+    {
+        $productIdentity = 'cache_tag_1';
+        $productMock = $this->getMockBuilder(Product::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $proceed = function () use ($productIdentity) {
+            return [$productIdentity];
+        };
+
+        $productId = 1;
+        $parentProductId = 2;
+        $parentProductIdentity = 'cache_tag_2';
+        $productMock->expects($this->once())
+            ->method('getId')
+            ->willReturn($productId);
+        $this->configurableTypeMock->expects($this->once())
+            ->method('getParentIdsByChild')
+            ->with($productId)
+            ->willReturn([$parentProductId]);
+        $parentProductMock = $this->getMockBuilder(Product::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->productRepositoryMock->expects($this->once())
+            ->method('getById')
+            ->with($parentProductId)
+            ->willReturn($parentProductMock);
+        $parentProductMock->expects($this->once())
+            ->method('getIdentities')
+            ->willReturn([$parentProductIdentity]);
+
+        $productIdentities = $this->plugin->aroundGetIdentities($productMock, $proceed);
+        $this->assertEquals([$productIdentity, $parentProductIdentity], $productIdentities);
+    }
+}

dev/tests/integration/testsuite/Magento/ConfigurableProduct/Model/ProductTest.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\ConfigurableProduct\Model;
+
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\Catalog\Api\ProductRepositoryInterface;
+
+class ProductTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @magentoDataFixture Magento/ConfigurableProduct/_files/product_configurable.php
+     */
+    public function testGetIdentities()
+    {
+        $productRepository = Bootstrap::getObjectManager()->get(ProductRepositoryInterface::class);
+        $confProduct = $productRepository->get('configurable');
+        $simple10Product = $productRepository->get('simple_10');
+        $simple20Product = $productRepository->get('simple_20');
+
+        $this->assertEmpty(array_diff($confProduct->getIdentities(), $simple10Product->getIdentities()));
+        $this->assertEmpty(array_diff($confProduct->getIdentities(), $simple20Product->getIdentities()));
+    }
+}