diff --git a/core/modules/file/tests/src/Functional/Update/FileUsageTemporaryDeletionConfigurationUpdateTest.php b/core/modules/file/tests/src/Functional/Update/FileUsageTemporaryDeletionConfigurationUpdateTest.php
index e9973def61..4446ecb50e 100644
--- a/core/modules/file/tests/src/Functional/Update/FileUsageTemporaryDeletionConfigurationUpdateTest.php
+++ b/core/modules/file/tests/src/Functional/Update/FileUsageTemporaryDeletionConfigurationUpdateTest.php
@@ -28,7 +28,9 @@ protected function setDatabaseDumpFiles() {
   }
 
   /**
-   * Tests that block context mapping is updated properly.
+   * Tests that the make_unused_managed_files_temporary conditions are correct.
+   *
+   * Verify that the before and after conditions for the variable are correct.
    */
   public function testUpdateHookN() {
     $this->assertIdentical($this->config('file.settings')->get('make_unused_managed_files_temporary'), NULL);