Add regions for Belarus

app/code/Magento/Directory/Setup/Patch/Data/AddDataForBelarus.php

@@ -0,0 +1,90 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Directory\Setup\Patch\Data;
+
+use Magento\Directory\Setup\DataInstaller;
+use Magento\Directory\Setup\DataInstallerFactory;
+use Magento\Framework\Setup\ModuleDataSetupInterface;
+use Magento\Framework\Setup\Patch\DataPatchInterface;
+
+/**
+ * Add Regions for Belarus.
+ */
+class AddDataForBelarus implements DataPatchInterface
+{
+    /**
+     * @var ModuleDataSetupInterface
+     */
+    private $moduleDataSetup;
+
+    /**
+     * @var DataInstallerFactory
+     */
+    private $dataInstallerFactory;
+
+    /**
+     * @param ModuleDataSetupInterface $moduleDataSetup
+     * @param DataInstallerFactory $dataInstallerFactory
+     */
+    public function __construct(
+        ModuleDataSetupInterface $moduleDataSetup,
+        DataInstallerFactory $dataInstallerFactory
+    ) {
+        $this->moduleDataSetup = $moduleDataSetup;
+        $this->dataInstallerFactory = $dataInstallerFactory;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function apply()
+    {
+        /** @var DataInstaller $dataInstaller */
+        $dataInstaller = $this->dataInstallerFactory->create();
+        $dataInstaller->addCountryRegions(
+            $this->moduleDataSetup->getConnection(),
+            $this->getDataForBelarus()
+        );
+    }
+
+    /**
+     * Belarus regions data.
+     *
+     * @return array
+     */
+    private function getDataForBelarus(): array
+    {
+        return [
+            ['BY', 'BY-BR', 'Bresckaja voblasć'],
+            ['BY', 'BY-HO', 'Homieĺskaja voblasć'],
+            ['BY', 'BY-HM', 'Horad Minsk'],
+            ['BY', 'BY-HR', 'Hrodzienskaja voblasć'],
+            ['BY', 'BY-MA', 'Mahilioŭskaja voblasć'],
+            ['BY', 'BY-MI', 'Minskaja voblasć'],
+            ['BY', 'BY-VI', 'Viciebskaja voblasć'],
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public static function getDependencies()
+    {
+        return [
+            InitializeDirectoryData::class,
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getAliases()
+    {
+        return [];
+    }
+}

dev/tests/integration/testsuite/Magento/Directory/Model/RegionTest.php

@@ -44,7 +44,7 @@ public function testCountryHasRegions($countryId)
      *
      * @return array
      */
-    public function getCountryIdDataProvider():array
+    public function getCountryIdDataProvider(): array
     {
         return [
             ['countryId' => 'US'],
@@ -72,7 +72,8 @@ public function getCountryIdDataProvider():array
             ['countryId' => 'SE'],
             ['countryId' => 'GR'],
             ['countryId' => 'DK'],
-            ['countryId' => 'AL']
+            ['countryId' => 'AL'],
+            ['countryId' => 'BY'],
         ];
     }
 }