diff --git a/core/lib/Drupal/Core/StringTranslation/TranslationManager.php b/core/lib/Drupal/Core/StringTranslation/TranslationManager.php
index 038ac52..4e61b2a 100644
--- a/core/lib/Drupal/Core/StringTranslation/TranslationManager.php
+++ b/core/lib/Drupal/Core/StringTranslation/TranslationManager.php
@@ -166,8 +166,7 @@ public function renderTranslatedString(TranslationWrapper $translated_string) {
     $value = $this->doTranslate($translated_string->getUntranslatedString(), $translated_string->getOptions());
 
     // Handle any replacements.
-    $args = $translated_string->getArguments();
-    if (!empty($args)) {
+    if ($args = $translated_string->getArguments()) {
       $value = $this->placeholderFormat($value, $args);
     }
     return $value;
diff --git a/core/tests/Drupal/Tests/Core/StringTranslation/TranslationManagerTest.php b/core/tests/Drupal/Tests/Core/StringTranslation/TranslationManagerTest.php
index 6041e74..047d316 100644
--- a/core/tests/Drupal/Tests/Core/StringTranslation/TranslationManagerTest.php
+++ b/core/tests/Drupal/Tests/Core/StringTranslation/TranslationManagerTest.php
@@ -77,11 +77,11 @@ public function testFormatPlural($count, $singular, $plural, array $args = array
   public function testTranslatePlaceholder($string, array $args = array(), $expected_string, $returns_translation_wrapper) {
     $actual = $this->translationManager->translate($string, $args);
     if ($returns_translation_wrapper) {
-      $this->assertInstanceOf('Drupal\Component\Utility\SafeStringInterface', $actual);
+      $this->assertInstanceOf(SafeStringInterface::class, $actual);
       $actual->setStringTranslation($this->translationManager);
     }
     else {
-      $this->assertTrue(is_string($actual));
+      $this->assertInternalType('string', $actual);
     }
     $this->assertEquals($expected_string, $actual);
   }