MAGETWO-66120: Create replacement for Magento\Eav\Model\Entity\Attribute\Backend\Serialized class

Author: rganin

app/code/Magento/Eav/Model/Entity/Attribute/Backend/JsonEncoded.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Eav\Model\Entity\Attribute\Backend;
+use Magento\Framework\Serialize\Serializer\Json;
+
+/**
+ * Backend model for attribute that stores structures in json format
+ */
+class JsonEncoded extends \Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend
+{
+    /**
+     * @var Json
+     */
+    private $jsonSerializer;
+
+    /**
+     * ArrayBackend constructor.
+     *
+     * @param Json $jsonSerializer
+     */
+    public function __construct(Json $jsonSerializer)
+    {
+        $this->jsonSerializer = $jsonSerializer;
+    }
+
+    /**
+     * Encode before saving
+     *
+     * @param \Magento\Framework\DataObject $object
+     * @return $this
+     */
+    public function beforeSave($object)
+    {
+        // parent::beforeSave() is not called intentionally
+        $attrCode = $this->getAttribute()->getAttributeCode();
+        if ($object->hasData($attrCode)) {
+            $object->setData($attrCode, $this->jsonSerializer->serialize($object->getData($attrCode)));
+        }
+        return $this;
+    }
+
+    /**
+     * Decode after loading
+     *
+     * @param \Magento\Framework\DataObject $object
+     * @return $this
+     */
+    public function afterLoad($object)
+    {
+        parent::afterLoad($object);
+        $attrCode = $this->getAttribute()->getAttributeCode();
+        $object->setData($attrCode, $this->jsonSerializer->unserialize($object->getData($attrCode)));
+        return $this;
+    }
+}

app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Backend/JsonEncodedTest.php

@@ -0,0 +1,99 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Eav\Test\Unit\Model\Entity\Attribute\Backend;
+
+use Magento\Eav\Model\Entity\Attribute\Backend\JsonEncoded;
+
+class JsonEncodedTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var \Magento\Eav\Model\Entity\Attribute\Backend\JsonEncoded
+     */
+    private $model;
+
+    /**
+     * @var \Magento\Eav\Model\Entity\Attribute|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $attributeMock;
+
+    /**
+     * @var \Magento\Framework\Serialize\Serializer\Json|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $serializerMock;
+
+    /**
+     * Set up before test
+     */
+    protected function setUp()
+    {
+        $this->serializerMock = $this->getMockBuilder(\Magento\Framework\Serialize\Serializer\Json::class)
+            ->disableOriginalConstructor()
+            ->setMethods(['serialize', 'unserialize'])
+            ->getMock();
+
+        $this->serializerMock->expects($this->any())
+            ->method('serialize')
+            ->will(
+                $this->returnCallback(
+                    function ($value) {
+                        return json_encode($value);
+                    }
+                )
+            );
+
+        $this->serializerMock->expects($this->any())
+            ->method('unserialize')
+            ->will(
+                $this->returnCallback(
+                    function ($value) {
+                        return json_decode($value, true);
+                    }
+                )
+            );
+
+        $this->attributeMock = $this->getMockBuilder(\Magento\Eav\Model\Entity\Attribute::class)
+            ->disableOriginalConstructor()
+            ->setMethods(['getAttributeCode'])
+            ->getMock();
+
+        $this->attributeMock->expects($this->any())
+            ->method('getAttributeCode')
+            ->will($this->returnValue('json_encoded'));
+
+        $this->model = new JsonEncoded($this->serializerMock);
+        $this->model->setAttribute($this->attributeMock);
+    }
+
+    /**
+     * Test before save handler
+     */
+    public function testBeforeSave()
+    {
+        $product = new \Magento\Framework\DataObject(
+            [
+                'json_encoded' => [1, 2, 3]
+            ]
+        );
+        $this->model->beforeSave($product);
+        $this->assertEquals(json_encode([1, 2, 3]), $product->getData('json_encoded'));
+    }
+
+
+    /**
+     * Test after load handler
+     */
+    public function testAfterLoad()
+    {
+        $product = new \Magento\Framework\DataObject(
+            [
+                'json_encoded' => json_encode([1, 2, 3])
+            ]
+        );
+        $this->model->afterLoad($product);
+        $this->assertEquals([1, 2, 3], $product->getData('json_encoded'));
+    }
+}