fixed unit test

Author: engcom-Charlie

app/code/Magento/Customer/Block/Address/Renderer/DefaultRenderer.php

@@ -174,7 +174,7 @@ public function renderArray($addressAttributes, $format = null)
             if ($attributeCode == 'country_id' && isset($addressAttributes['country_id'])) {
                 $data['country'] = $this->_countryFactory->create()
                     ->loadByCode($addressAttributes['country_id'])
-                    ->getName(isset($addressAttributes['locale']) ? $addressAttributes['locale'] : null);
+                    ->getName($addressAttributes['locale'] ?? null);
             } elseif ($attributeCode == 'region' && isset($addressAttributes['region'])) {
                 $data['region'] = (string)__($addressAttributes['region']);
             } elseif (isset($addressAttributes[$attributeCode])) {

app/code/Magento/Sales/Test/Unit/Model/Order/Address/RendererTest.php

@@ -9,6 +9,7 @@
 
 use Magento\Customer\Block\Address\Renderer\RendererInterface as CustomerAddressBlockRenderer;
 use Magento\Customer\Model\Address\Config as CustomerAddressConfig;
+use Magento\Framework\App\Config\ScopeConfigInterface;
 use Magento\Framework\DataObject;
 use Magento\Framework\Event\ManagerInterface as EventManager;
 use Magento\Framework\TestFramework\Unit\Helper\ObjectManager as ObjectManagerHelper;
@@ -18,6 +19,9 @@
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 
+/**
+ * Test for \Magento\Sales\Model\Order\Address\Renderer.
+ */
 class RendererTest extends TestCase
 {
     /**
@@ -55,6 +59,14 @@ class RendererTest extends TestCase
      */
     private $customerAddressBlockRendererMock;
 
+    /**
+     * @var ScopeConfigInterface|MockObject
+     */
+    private $storeConfigMock;
+
+    /**
+     * @ingeritdoc
+     */
     protected function setUp(): void
     {
         $this->customerAddressConfigMock = $this->getMockBuilder(CustomerAddressConfig::class)
@@ -75,12 +87,15 @@ protected function setUp(): void
             ->method('getOrder')
             ->willReturn($this->orderMock);
 
+        $this->storeConfigMock = $this->createMock(ScopeConfigInterface::class);
+
         $this->objectManagerHelper = new ObjectManagerHelper($this);
         $this->orderAddressRenderer = $this->objectManagerHelper->getObject(
             OrderAddressRenderer::class,
             [
                 'addressConfig' => $this->customerAddressConfigMock,
-                'eventManager' => $this->eventManagerMock
+                'eventManager' => $this->eventManagerMock,
+                'scopeConfig' => $this->storeConfigMock
             ]
         );
     }
@@ -89,7 +104,7 @@ public function testFormat()
     {
         $type = 'html';
         $formatType = new DataObject(['renderer' => $this->customerAddressBlockRendererMock]);
-        $addressData = ['address', 'data'];
+        $addressData = ['address', 'data', 'locale' => 1];
         $result = 'result string';
 
         $this->setStoreExpectations(1);
@@ -103,6 +118,9 @@ public function testFormat()
         $this->orderAddressMock->expects(static::atLeastOnce())
             ->method('getData')
             ->willReturn($addressData);
+        $this->storeConfigMock->expects($this->once())
+            ->method('getValue')
+            ->willReturn(1);
         $this->customerAddressBlockRendererMock->expects(static::once())
             ->method('renderArray')
             ->with($addressData, null)