diff --git a/core/modules/migrate/tests/src/Unit/destination/EntityFileTest.php b/core/modules/migrate/tests/src/Unit/destination/EntityFileTest.php
index 3cb5bc6..e646331 100644
--- a/core/modules/migrate/tests/src/Unit/destination/EntityFileTest.php
+++ b/core/modules/migrate/tests/src/Unit/destination/EntityFileTest.php
@@ -72,6 +72,8 @@ protected function localFileDataProvider() {
       [['filepath' => 'core/modules/simpletest/files/image-test.jpg'], 'public://file1.jpg', TRUE, DRUPAL_ROOT . '/'],
       // Test a temporary file using an absolute path.
       [['filepath' => '/tmp/test-file.jpg'], 'temporary://test.jpg', TRUE, ''],
+      // Test a temporary file using an relative path.
+      [['filepath' => 'test-file.jpg'], 'temporary://core/modules/simpletest/files/test.jpg', TRUE, '/tmp/'],
       // Test a remote path to local.
       [['filepath' => 'core/modules/simpletest/files/image-test.jpg'], 'public://remote-file.jpg', TRUE, $base_url . '/'],
       // Test a remote path to local inside a folder that doesn't exist.