diff --git a/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php b/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
index 015eeb8..38784a9 100644
--- a/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
@@ -94,6 +94,8 @@ public function testGetNegotiationMethodId() {
   /**
    * Tests sorting an array of Language objects.
    *
+   * @covers ::sort()
+   *
    * @dataProvider providerTestSortArrayOfLanguages
    *
    * @param \Drupal\Core\Language\Language[] $languages
@@ -122,10 +124,12 @@ public function providerTestSortArrayOfLanguages() {
     $language9A->setName('A');
     $language9A->setWeight(9);
     $language9A->setId('dd');
+
     $language10A = new Language();
     $language10A->setName('A');
     $language10A->setWeight(10);
     $language10A->setId('ee');
+
     $language10B = new Language();
     $language10B->setName('B');
     $language10B->setWeight(10);