init

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Api/Data/FakeAddressInterface.php

@@ -0,0 +1,191 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Api\Data;
+
+use Magento\Framework\Api\ExtensibleDataInterface;
+
+/**
+ * Customer address interface.
+ */
+interface FakeAddressInterface extends ExtensibleDataInterface
+{
+    /**#@+
+     * Constants for keys of data array
+     */
+    const ID = 'id';
+    const CUSTOMER_ID = 'customer_id';
+    const REGION = 'region';
+    const REGIONS = 'regions';
+    const COUNTRY_ID = 'country_id';
+    const STREET = 'street';
+    const COMPANY = 'company';
+    const TELEPHONE = 'telephone';
+    const FAX = 'fax';
+    const POSTCODE = 'postcode';
+    const CITY = 'city';
+    const FIRSTNAME = 'firstname';
+    const LASTNAME = 'lastname';
+    const MIDDLENAME = 'middlename';
+    const PREFIX = 'prefix';
+    const SUFFIX = 'suffix';
+    const VAT_ID = 'vat_id';
+    const DEFAULT_BILLING = 'default_billing';
+    const DEFAULT_SHIPPING = 'default_shipping';
+    /**#@-*/
+
+    /**
+     * Get ID
+     *
+     * @return int|null
+     */
+    public function getId();
+
+    /**
+     * Get customer ID
+     *
+     * @return int|null
+     */
+    public function getCustomerId();
+
+    /**
+     * Get region
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionInterface|null
+     */
+    public function getRegion();
+
+    /**
+     * Get region
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionInterface[]|null
+     */
+    public function getRegions();
+
+    /**
+     * Two-letter country code in ISO_3166-2 format
+     *
+     * @return string|null
+     */
+    public function getCountryId();
+
+    /**
+     * Get street
+     *
+     * @return string[]|null
+     */
+    public function getStreet();
+
+    /**
+     * Get company
+     *
+     * @return string|null
+     */
+    public function getCompany();
+
+    /**
+     * Get telephone number
+     *
+     * @return string|null
+     */
+    public function getTelephone();
+
+    /**
+     * Get fax number
+     *
+     * @return string|null
+     */
+    public function getFax();
+
+    /**
+     * Get postcode
+     *
+     * @return string|null
+     */
+    public function getPostcode();
+
+    /**
+     * Get city name
+     *
+     * @return string|null
+     */
+    public function getCity();
+
+    /**
+     * Get first name
+     *
+     * @return string|null
+     */
+    public function getFirstname();
+
+    /**
+     * Get last name
+     *
+     * @return string|null
+     */
+    public function getLastname();
+
+    /**
+     * Get middle name
+     *
+     * @return string|null
+     */
+    public function getMiddlename();
+
+    /**
+     * Get prefix
+     *
+     * @return string|null
+     */
+    public function getPrefix();
+
+    /**
+     * Get suffix
+     *
+     * @return string|null
+     */
+    public function getSuffix();
+
+    /**
+     * Get Vat id
+     *
+     * @return string|null
+     */
+    public function getVatId();
+
+    /**
+     * Get if this address is default shipping address.
+     *
+     * @return bool|null
+     */
+    public function isDefaultShipping();
+
+    /**
+     * Get if this address is default billing address
+     *
+     * @return bool|null
+     */
+    public function isDefaultBilling();
+
+    /**
+     * Retrieve existing extension attributes object or create a new one.
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface|null
+     */
+    public function getExtensionAttributes();
+
+    /**
+     * Set an extension attributes object.
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface $extensionAttributes
+    );
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Api/Data/FakeAttributeMetadataInterface.php

@@ -0,0 +1,68 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Api\Data;
+
+/**
+ * Customer attribute metadata interface.
+ */
+interface FakeAttributeMetadataInterface extends \Magento\Framework\Api\MetadataObjectInterface
+{
+    /**#@+
+     * Constants used as keys of data array
+     */
+    const ATTRIBUTE_CODE = 'attribute_code';
+    const STORE_LABEL = 'store_label';
+    const FRONTEND_LABEL = 'frontend_label';
+    const NOTE = 'note';
+    /**#@-*/
+
+    /**
+     * Get label of the store.
+     *
+     * @return string
+     */
+    public function getStoreLabel();
+
+    /**
+     * Set label of the store.
+     *
+     * @param string $storeLabel
+     * @return $this
+     */
+    public function setStoreLabel($storeLabel);
+
+    /**
+     * Get label which supposed to be displayed on frontend.
+     *
+     * @return string
+     */
+    public function getFrontendLabel();
+
+    /**
+     * Set label which supposed to be displayed on frontend.
+     *
+     * @param string $frontendLabel
+     * @return $this
+     */
+    public function setFrontendLabel($frontendLabel);
+
+    /**
+     * Get the note attribute for the element.
+     *
+     * @return string
+     */
+    public function getNote();
+
+    /**
+     * Set the note attribute for the element.
+     *
+     * @param string $note
+     * @return $this
+     */
+    public function setNote($note);
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Api/Data/FakeCustomerInterface.php

@@ -0,0 +1,116 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Api\Data;
+
+/**
+ * Customer interface.
+ */
+interface FakeCustomerInterface extends \Magento\Framework\Api\CustomAttributesDataInterface
+{
+    /**#@+
+     * Constants defined for keys of the data array. Identical to the name of the getter in snake case
+     */
+    const ID = 'id';
+    const EMAIL = 'email';
+    const FIRSTNAME = 'firstname';
+    const LASTNAME = 'lastname';
+    const PREFIX = 'prefix';
+    /**#@-*/
+
+    /**
+     * Get customer id
+     *
+     * @return int|null
+     */
+    public function getId();
+
+    /**
+     * Set customer id
+     *
+     * @param int $id
+     * @return $this
+     */
+    public function setId($id);
+
+    /**
+     * Get email address
+     *
+     * @return string
+     */
+    public function getEmail();
+
+    /**
+     * Set email address
+     *
+     * @param string $email
+     * @return $this
+     */
+    public function setEmail($email);
+
+    /**
+     * Get first name
+     *
+     * @return string
+     */
+    public function getFirstname();
+
+    /**
+     * Set first name
+     *
+     * @param string $firstname
+     * @return $this
+     */
+    public function setFirstname($firstname);
+
+    /**
+     * Get last name
+     *
+     * @return string
+     */
+    public function getLastname();
+
+    /**
+     * Set last name
+     *
+     * @param string $lastname
+     * @return $this
+     */
+    public function setLastname($lastname);
+
+    /**
+     * Get prefix
+     *
+     * @return string|null
+     */
+    public function getPrefix();
+
+    /**
+     * Set prefix
+     *
+     * @param string $prefix
+     * @return $this
+     */
+    public function setPrefix($prefix);
+
+    /**
+     * Retrieve existing extension attributes object or create a new one.
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface|null
+     */
+    public function getExtensionAttributes();
+
+    /**
+     * Set an extension attributes object.
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface $extensionAttributes
+    );
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Api/Data/FakeExtensibleOneInterface.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Api\Data;
+
+use Magento\Framework\Api\ExtensibleDataInterface;
+
+/**
+ * Fake interface
+ * to test exception if the method 'getExtensionAttributes' is not overridden
+ */
+interface FakeExtensibleOneInterface extends ExtensibleDataInterface
+{
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Api/Data/FakeExtensibleTwoInterface.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Api\Data;
+
+use Magento\Framework\Api\ExtensibleDataInterface;
+
+/**
+ * Fake interface
+ * to test exception if the method 'getExtensionAttributes' does not return concrete type
+ */
+interface FakeExtensibleTwoInterface extends ExtensibleDataInterface
+{
+    /**
+     * test incorrect return type
+     *
+     * @return int
+     */
+    public function getExtensionAttributes();
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Api/Data/FakeRegionInterface.php

@@ -0,0 +1,63 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Api\Data;
+
+use Magento\Framework\Api\ExtensibleDataInterface;
+
+/**
+ * Customer address region interface.
+ */
+interface FakeRegionInterface extends ExtensibleDataInterface
+{
+    /**#@+
+     * Constants for keys of data array
+     */
+    const REGION_CODE = 'region_code';
+    const REGION = 'region';
+    const REGION_ID = 'region_id';
+    /**#@-*/
+
+    /**
+     * Get region code
+     *
+     * @return string
+     */
+    public function getRegionCode();
+
+    /**
+     * Get region
+     *
+     * @return string
+     */
+    public function getRegion();
+
+    /**
+     * Get region id
+     *
+     * @return int
+     */
+    public function getRegionId();
+
+    /**
+     * Retrieve existing extension attributes object or create a new one.
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface|null
+     */
+    public function getExtensionAttributes();
+
+    /**
+     * Set an extension attributes object.
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface $extensionAttributes
+    );
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/Data/FakeAddress.php

@@ -0,0 +1,227 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Model\Data;
+
+use Magento\Framework\Api\AbstractExtensibleObject;
+use Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressInterface;
+
+class FakeAddress extends AbstractExtensibleObject implements FakeAddressInterface
+{
+    /**
+     * Get ID
+     *
+     * @return int|null
+     */
+    public function getId()
+    {
+        return $this->_get(self::ID);
+    }
+
+    /**
+     * Get customer ID
+     *
+     * @return int|null
+     */
+    public function getCustomerId()
+    {
+        return $this->_get(self::CUSTOMER_ID);
+    }
+
+    /**
+     * Get region
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Model\Data\FakeRegion|null
+     */
+    public function getRegion()
+    {
+        return $this->_get(self::REGION);
+    }
+
+    /**
+     * Get region
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Model\Data\FakeRegion[]|null
+     */
+    public function getRegions()
+    {
+        return $this->_get(self::REGIONS);
+    }
+
+    /**
+     * Two-letter country code in ISO_3166-2 format
+     *
+     * @return string|null
+     */
+    public function getCountryId()
+    {
+        return $this->_get(self::COUNTRY_ID);
+    }
+
+    /**
+     * Get street
+     *
+     * @return string[]|null
+     */
+    public function getStreet()
+    {
+        return $this->_get(self::STREET);
+    }
+
+    /**
+     * Get company
+     *
+     * @return string|null
+     */
+    public function getCompany()
+    {
+        return $this->_get(self::COMPANY);
+    }
+
+    /**
+     * Get telephone number
+     *
+     * @return string|null
+     */
+    public function getTelephone()
+    {
+        return $this->_get(self::TELEPHONE);
+    }
+
+    /**
+     * Get fax number
+     *
+     * @return string|null
+     */
+    public function getFax()
+    {
+        return $this->_get(self::FAX);
+    }
+
+    /**
+     * Get postcode
+     *
+     * @return string|null
+     */
+    public function getPostcode()
+    {
+        return $this->_get(self::POSTCODE);
+    }
+
+    /**
+     * Get city name
+     *
+     * @return string|null
+     */
+    public function getCity()
+    {
+        return $this->_get(self::CITY);
+    }
+
+    /**
+     * Get first name
+     *
+     * @return string|null
+     */
+    public function getFirstname()
+    {
+        return $this->_get(self::FIRSTNAME);
+    }
+
+    /**
+     * Get last name
+     *
+     * @return string|null
+     */
+    public function getLastname()
+    {
+        return $this->_get(self::LASTNAME);
+    }
+
+    /**
+     * Get middle name
+     *
+     * @return string|null
+     */
+    public function getMiddlename()
+    {
+        return $this->_get(self::MIDDLENAME);
+    }
+
+    /**
+     * Get prefix
+     *
+     * @return string|null
+     */
+    public function getPrefix()
+    {
+        return $this->_get(self::PREFIX);
+    }
+
+    /**
+     * Get suffix
+     *
+     * @return string|null
+     */
+    public function getSuffix()
+    {
+        return $this->_get(self::SUFFIX);
+    }
+
+    /**
+     * Get Vat id
+     *
+     * @return string|null
+     */
+    public function getVatId()
+    {
+        return $this->_get(self::VAT_ID);
+    }
+
+    /**
+     * Get if this address is default shipping address.
+     *
+     * @return bool|null
+     */
+    public function isDefaultShipping()
+    {
+        return $this->_get(self::DEFAULT_SHIPPING);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface|null
+     */
+    public function getExtensionAttributes()
+    {
+        return $this->_getExtensionAttributes();
+    }
+
+    /**
+     * Get if this address is default billing address
+     *
+     * @return bool|null
+     */
+    public function isDefaultBilling()
+    {
+        return $this->_get(self::DEFAULT_BILLING);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface $extensionAttributes
+    ) {
+        return $this->_setExtensionAttributes($extensionAttributes);
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/Data/FakeAttributeMetadata.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Model\Data;
+
+/**
+ * Customer attribute metadata class.
+ */
+class FakeAttributeMetadata extends \Magento\Framework\Api\AbstractSimpleObject implements
+    \Magento\TestModuleExtensionAttributes\Api\Data\FakeAttributeMetadataInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getAttributeCode()
+    {
+        return $this->_get(self::ATTRIBUTE_CODE);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getStoreLabel()
+    {
+        return $this->_get(self::STORE_LABEL);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFrontendLabel()
+    {
+        return $this->_get(self::FRONTEND_LABEL);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getNote()
+    {
+        return $this->_get(self::NOTE);
+    }
+
+    /**
+     * Set attribute code
+     *
+     * @param string $attributeCode
+     * @return $this
+     */
+    public function setAttributeCode($attributeCode)
+    {
+        return $this->setData(self::ATTRIBUTE_CODE, $attributeCode);
+    }
+
+    /**
+     * Set label of the store.
+     *
+     * @param string $storeLabel
+     * @return $this
+     */
+    public function setStoreLabel($storeLabel)
+    {
+        return $this->setData(self::STORE_LABEL, $storeLabel);
+    }
+
+    /**
+     * Set label which supposed to be displayed on frontend.
+     *
+     * @param string $frontendLabel
+     * @return $this
+     */
+    public function setFrontendLabel($frontendLabel)
+    {
+        return $this->setData(self::FRONTEND_LABEL, $frontendLabel);
+    }
+
+    /**
+     * Set the note attribute for the element.
+     *
+     * @param string $note
+     * @return $this
+     */
+    public function setNote($note)
+    {
+        return $this->setData(self::NOTE, $note);
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/Data/FakeCustomer.php

@@ -0,0 +1,143 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Model\Data;
+
+/**
+ * Class Customer
+ *
+ */
+class FakeCustomer extends \Magento\Framework\Api\AbstractExtensibleObject implements
+    \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerInterface
+{
+    /**
+     * Get email address
+     *
+     * @return string
+     */
+    public function getEmail()
+    {
+        return $this->_get(self::EMAIL);
+    }
+
+    /**
+     * Get first name
+     *
+     * @return string
+     */
+    public function getFirstname()
+    {
+        return $this->_get(self::FIRSTNAME);
+    }
+
+    /**
+     * Get customer id
+     *
+     * @return int|null
+     */
+    public function getId()
+    {
+        return $this->_get(self::ID);
+    }
+
+    /**
+     * Get last name
+     *
+     * @return string
+     */
+    public function getLastname()
+    {
+        return $this->_get(self::LASTNAME);
+    }
+
+    /**
+     * Set customer id
+     *
+     * @param int $id
+     * @return $this
+     */
+    public function setId($id)
+    {
+        return $this->setData(self::ID, $id);
+    }
+
+    /**
+     * Set email address
+     *
+     * @param string $email
+     * @return $this
+     */
+    public function setEmail($email)
+    {
+        return $this->setData(self::EMAIL, $email);
+    }
+
+    /**
+     * Set first name
+     *
+     * @param string $firstname
+     * @return $this
+     */
+    public function setFirstname($firstname)
+    {
+        return $this->setData(self::FIRSTNAME, $firstname);
+    }
+
+    /**
+     * Set last name
+     *
+     * @param string $lastname
+     * @return string
+     */
+    public function setLastname($lastname)
+    {
+        return $this->setData(self::LASTNAME, $lastname);
+    }
+
+    /**
+     * Get prefix
+     *
+     * @return string|null
+     */
+    public function getPrefix()
+    {
+        return $this->_get(self::PREFIX);
+    }
+
+    /**
+     * Set prefix
+     *
+     * @param string $prefix
+     * @return $this
+     */
+    public function setPrefix($prefix)
+    {
+        return $this->setData(self::PREFIX, $prefix);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface|null
+     */
+    public function getExtensionAttributes()
+    {
+        return $this->_getExtensionAttributes();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface $extensionAttributes
+    ) {
+        return $this->_setExtensionAttributes($extensionAttributes);
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/Data/FakeExtensibleOne.php

@@ -0,0 +1,15 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Model\Data;
+
+use Magento\TestModuleExtensionAttributes\Api\Data\FakeExtensibleOneInterface;
+
+class FakeExtensibleOne implements FakeExtensibleOneInterface
+{
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/Data/FakeExtensibleTwo.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Model\Data;
+
+use Magento\Framework\Api\AbstractExtensibleObject;
+use Magento\TestModuleExtensionAttributes\Api\Data\FakeExtensibleTwoInterface;
+
+class FakeExtensibleTwo extends AbstractExtensibleObject implements FakeExtensibleTwoInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getExtensionAttributes()
+    {
+        return $this->_getExtensionAttributes();
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/Data/FakeRegion.php

@@ -0,0 +1,78 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Model\Data;
+
+use Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionInterface;
+use Magento\Framework\Api\AbstractExtensibleObject;
+
+class FakeRegion extends AbstractExtensibleObject implements FakeRegionInterface
+{
+    /**
+     * Get region
+     *
+     * @return string
+     */
+    public function getRegion()
+    {
+        return $this->_get(self::REGION);
+    }
+
+    /**
+     * Get region code
+     *
+     * @return string
+     */
+    public function getRegionCode()
+    {
+        return $this->_get(self::REGION_CODE);
+    }
+
+    /**
+     * Get region id
+     *
+     * @return int
+     */
+    public function getRegionId()
+    {
+        return $this->_get(self::REGION_ID);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface|null
+     */
+    public function getExtensionAttributes()
+    {
+        return $this->_getExtensionAttributes();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface $extensionAttributes
+    ) {
+        return $this->_setExtensionAttributes($extensionAttributes);
+    }
+
+    /**
+     * Set region code
+     *
+     * @param string $regionCode
+     * @return $this
+     */
+    public function setRegionCode($regionCode)
+    {
+        return $this->setData(self::REGION_CODE, $regionCode);
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/FakeAddress.php

@@ -0,0 +1,227 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Model;
+
+use Magento\Framework\Model\AbstractExtensibleModel;
+use Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressInterface;
+
+class FakeAddress extends AbstractExtensibleModel implements FakeAddressInterface
+{
+    /**
+     * Get ID
+     *
+     * @return int|null
+     */
+    public function getId()
+    {
+        return $this->getData(self::ID);
+    }
+
+    /**
+     * Get customer ID
+     *
+     * @return int|null
+     */
+    public function getCustomerId()
+    {
+        return $this->getData(self::CUSTOMER_ID);
+    }
+
+    /**
+     * Get region
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionInterface|null
+     */
+    public function getRegion()
+    {
+        return $this->getData(self::REGION);
+    }
+
+    /**
+     * Get region
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionInterface[]|null
+     */
+    public function getRegions()
+    {
+        return $this->getData(self::REGIONS);
+    }
+
+    /**
+     * Two-letter country code in ISO_3166-2 format
+     *
+     * @return string|null
+     */
+    public function getCountryId()
+    {
+        return $this->getData(self::COUNTRY_ID);
+    }
+
+    /**
+     * Get street
+     *
+     * @return string[]|null
+     */
+    public function getStreet()
+    {
+        return $this->getData(self::STREET);
+    }
+
+    /**
+     * Get company
+     *
+     * @return string|null
+     */
+    public function getCompany()
+    {
+        return $this->getData(self::COMPANY);
+    }
+
+    /**
+     * Get telephone number
+     *
+     * @return string|null
+     */
+    public function getTelephone()
+    {
+        return $this->getData(self::TELEPHONE);
+    }
+
+    /**
+     * Get fax number
+     *
+     * @return string|null
+     */
+    public function getFax()
+    {
+        return $this->getData(self::FAX);
+    }
+
+    /**
+     * Get postcode
+     *
+     * @return string|null
+     */
+    public function getPostcode()
+    {
+        return $this->getData(self::POSTCODE);
+    }
+
+    /**
+     * Get city name
+     *
+     * @return string|null
+     */
+    public function getCity()
+    {
+        return $this->getData(self::CITY);
+    }
+
+    /**
+     * Get first name
+     *
+     * @return string|null
+     */
+    public function getFirstname()
+    {
+        return $this->getData(self::FIRSTNAME);
+    }
+
+    /**
+     * Get last name
+     *
+     * @return string|null
+     */
+    public function getLastname()
+    {
+        return $this->getData(self::LASTNAME);
+    }
+
+    /**
+     * Get middle name
+     *
+     * @return string|null
+     */
+    public function getMiddlename()
+    {
+        return $this->getData(self::MIDDLENAME);
+    }
+
+    /**
+     * Get prefix
+     *
+     * @return string|null
+     */
+    public function getPrefix()
+    {
+        return $this->getData(self::PREFIX);
+    }
+
+    /**
+     * Get suffix
+     *
+     * @return string|null
+     */
+    public function getSuffix()
+    {
+        return $this->getData(self::SUFFIX);
+    }
+
+    /**
+     * Get Vat id
+     *
+     * @return string|null
+     */
+    public function getVatId()
+    {
+        return $this->getData(self::VAT_ID);
+    }
+
+    /**
+     * Get if this address is default shipping address.
+     *
+     * @return bool|null
+     */
+    public function isDefaultShipping()
+    {
+        return $this->getData(self::DEFAULT_SHIPPING);
+    }
+
+    /**
+     * Get if this address is default billing address
+     *
+     * @return bool|null
+     */
+    public function isDefaultBilling()
+    {
+        return $this->getData(self::DEFAULT_BILLING);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface|null
+     */
+    public function getExtensionAttributes()
+    {
+        return $this->_getExtensionAttributes();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeAddressExtensionInterface $extensionAttributes
+    ) {
+        return $this->_setExtensionAttributes($extensionAttributes);
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/FakeAttributeMetadata.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Api\Model;
+
+/**
+ * Customer attribute metadata class.
+ */
+class FakeAttributeMetadata extends \Magento\Framework\Api\AbstractSimpleObject implements
+    \Magento\TestModuleExtensionAttributes\Api\Data\FakeAttributeMetadataInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getAttributeCode()
+    {
+        return $this->_get(self::ATTRIBUTE_CODE);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getStoreLabel()
+    {
+        return $this->_get(self::STORE_LABEL);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFrontendLabel()
+    {
+        return $this->_get(self::FRONTEND_LABEL);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getNote()
+    {
+        return $this->_get(self::NOTE);
+    }
+
+    /**
+     * Set attribute code
+     *
+     * @param string $attributeCode
+     * @return $this
+     */
+    public function setAttributeCode($attributeCode)
+    {
+        return $this->setData(self::ATTRIBUTE_CODE, $attributeCode);
+    }
+
+    /**
+     * Set label of the store.
+     *
+     * @param string $storeLabel
+     * @return $this
+     */
+    public function setStoreLabel($storeLabel)
+    {
+        return $this->setData(self::STORE_LABEL, $storeLabel);
+    }
+
+    /**
+     * Set label which supposed to be displayed on frontend.
+     *
+     * @param string $frontendLabel
+     * @return $this
+     */
+    public function setFrontendLabel($frontendLabel)
+    {
+        return $this->setData(self::FRONTEND_LABEL, $frontendLabel);
+    }
+
+    /**
+     * Set the note attribute for the element.
+     *
+     * @param string $note
+     * @return $this
+     */
+    public function setNote($note)
+    {
+        return $this->setData(self::NOTE, $note);
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/FakeCustomer.php

@@ -0,0 +1,143 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Api\Model;
+
+/**
+ * Class Customer
+ *
+ */
+class FakeCustomer extends \Magento\Framework\Api\AbstractExtensibleObject implements
+    \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerInterface
+{
+    /**
+     * Get customer id
+     *
+     * @return int|null
+     */
+    public function getId()
+    {
+        return $this->_get(self::ID);
+    }
+
+    /**
+     * Get email address
+     *
+     * @return string
+     */
+    public function getEmail()
+    {
+        return $this->_get(self::EMAIL);
+    }
+
+    /**
+     * Get first name
+     *
+     * @return string
+     */
+    public function getFirstname()
+    {
+        return $this->_get(self::FIRSTNAME);
+    }
+
+    /**
+     * Get last name
+     *
+     * @return string
+     */
+    public function getLastname()
+    {
+        return $this->_get(self::LASTNAME);
+    }
+
+    /**
+     * Get prefix
+     *
+     * @return string|null
+     */
+    public function getPrefix()
+    {
+        return $this->_get(self::PREFIX);
+    }
+
+    /**
+     * Set customer id
+     *
+     * @param int $id
+     * @return $this
+     */
+    public function setId($id)
+    {
+        return $this->setData(self::ID, $id);
+    }
+
+    /**
+     * Set email address
+     *
+     * @param string $email
+     * @return $this
+     */
+    public function setEmail($email)
+    {
+        return $this->setData(self::EMAIL, $email);
+    }
+
+    /**
+     * Set first name
+     *
+     * @param string $firstname
+     * @return $this
+     */
+    public function setFirstname($firstname)
+    {
+        return $this->setData(self::FIRSTNAME, $firstname);
+    }
+
+    /**
+     * Set last name
+     *
+     * @param string $lastname
+     * @return string
+     */
+    public function setLastname($lastname)
+    {
+        return $this->setData(self::LASTNAME, $lastname);
+    }
+
+    /**
+     * Set prefix
+     *
+     * @param string $prefix
+     * @return $this
+     */
+    public function setPrefix($prefix)
+    {
+        return $this->setData(self::PREFIX, $prefix);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface|null
+     */
+    public function getExtensionAttributes()
+    {
+        return $this->_getExtensionAttributes();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerExtensionInterface $extensionAttributes
+    ) {
+        return $this->_setExtensionAttributes($extensionAttributes);
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/FakeRegion.php

@@ -0,0 +1,67 @@
+<?php
+/**
+ *
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\TestModuleExtensionAttributes\Model;
+
+use Magento\Framework\Model\AbstractExtensibleModel;
+use Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionInterface;
+
+class FakeRegion extends AbstractExtensibleModel implements FakeRegionInterface
+{
+    /**
+     * Get region
+     *
+     * @return string
+     */
+    public function getRegion()
+    {
+        return $this->getData(self::REGION);
+    }
+
+    /**
+     * Get region code
+     *
+     * @return string
+     */
+    public function getRegionCode()
+    {
+        return $this->getData(self::REGION_CODE);
+    }
+
+    /**
+     * Get region id
+     *
+     * @return int
+     */
+    public function getRegionId()
+    {
+        return $this->getData(self::REGION_ID);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface|null
+     */
+    public function getExtensionAttributes()
+    {
+        return $this->_getExtensionAttributes();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface $extensionAttributes
+     * @return $this
+     */
+    public function setExtensionAttributes(
+        \Magento\TestModuleExtensionAttributes\Api\Data\FakeRegionExtensionInterface $extensionAttributes
+    ) {
+        return $this->_setExtensionAttributes($extensionAttributes);
+    }
+}

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/etc/extension_attributes.xml

@@ -0,0 +1,97 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+  -->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd">
+    <extension_attributes for="Magento\Catalog\Api\Data\ProductInterface">
+        <attribute code="test_stock_item" type="Magento\CatalogInventory\Api\Data\StockItemInterface">
+            <resources>
+                <resource ref="Magento_CatalogInventory::cataloginventory"/>
+            </resources>
+            <join reference_table="cataloginventory_stock_item"
+                  join_on_field="entity_id"
+                  reference_field="product_id"
+                    >
+                <field>qty</field>
+                <field>item_id</field>
+            </join>
+        </attribute>
+        <attribute code="test_stock_item_qty" type="string">
+            <resources>
+                <resource ref="Magento_CatalogInventory::cataloginventory"/>
+            </resources>
+            <join reference_table="cataloginventory_stock_item"
+                  join_on_field="entity_id"
+                  reference_field="product_id"
+                    >
+                <field>qty</field>
+            </join>
+        </attribute>
+    </extension_attributes>
+
+    <extension_attributes for="Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerInterface">
+        <attribute code="test_group_code" type="string">
+            <join reference_table="customer_group"
+                  join_on_field="group_id"
+                  reference_field="customer_group_id"
+                    >
+                <field>customer_group_code</field>
+            </join>
+        </attribute>
+    </extension_attributes>
+
+    <extension_attributes for="Magento\Customer\Api\Data\CustomerInterface">
+        <attribute code="test_group_code" type="string">
+            <join reference_table="customer_group"
+                  join_on_field="group_id"
+                  reference_field="customer_group_id"
+                    >
+                <field>customer_group_code</field>
+            </join>
+        </attribute>
+        <attribute code="test_group" type="Magento\Customer\Api\Data\GroupInterface">
+            <join reference_table="customer_group"
+                  join_on_field="group_id"
+                  reference_field="customer_group_id"
+                    >
+                <field>tax_class_id</field>
+                <field column="customer_group_code">code</field>
+            </join>
+        </attribute>
+    </extension_attributes>
+
+    <extension_attributes for="Magento\Customer\Api\Data\GroupInterface">
+        <attribute code="test_dummy_attribute" type="string">
+            <join reference_table="eav_attribute"
+                  reference_field="attribute_id"
+                  join_on_field="customer_group_id"
+                    >
+                <field>attribute_code</field>
+            </join>
+        </attribute>
+        <attribute code="test_complex_dummy_attribute" type="Magento\Catalog\Api\Data\ProductAttributeInterface">
+            <join reference_table="admin_user"
+                  reference_field="user_id"
+                  join_on_field="customer_group_id"
+                    >
+                <field column="username">attribute_code</field>
+                <field column="firstname">frontend_label</field>
+            </join>
+        </attribute>
+    </extension_attributes>
+
+    <extension_attributes for="Magento\Sales\Api\Data\InvoiceInterface">
+        <attribute code="test_dummy_attribute" type="string">
+            <join reference_table="eav_attribute"
+                  reference_field="attribute_id"
+                  join_on_field="entity_id"
+                    >
+                <field>attribute_code</field>
+            </join>
+        </attribute>
+    </extension_attributes>
+</config>

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/etc/module.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
+    <module name="Magento_TestModuleExtensionAttributes" />
+</config>

dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/registration.php

@@ -0,0 +1,13 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+use Magento\Framework\Component\ComponentRegistrar;
+
+$registrar = new ComponentRegistrar();
+if ($registrar->getPath(ComponentRegistrar::MODULE, 'Magento_TestModuleExtensionAttributes') === null) {
+    ComponentRegistrar::register(ComponentRegistrar::MODULE, 'Magento_TestModuleExtensionAttributes', __DIR__);
+}