diff -u b/core/modules/migrate/tests/src/Kernel/Plugin/MigrationTest.php b/core/modules/migrate/tests/src/Kernel/Plugin/MigrationTest.php
--- b/core/modules/migrate/tests/src/Kernel/Plugin/MigrationTest.php
+++ b/core/modules/migrate/tests/src/Kernel/Plugin/MigrationTest.php
@@ -34,9 +34,6 @@
    */
   public function testGetMigrationDependencies() {
     $plugin_manager = \Drupal::service('plugin.manager.migration');
-    $migration = $plugin_manager->createStubMigration([
-        'migration_dependencies' => NULL
-    ]);
     $plugin_definition = [
       'process' => [
         'f1' => 'bar',
@@ -57,7 +54,6 @@
     ];
     $migration = $plugin_manager->createStubMigration($plugin_definition);
     $this->assertSame(['required' => [], 'optional' => ['m1', 'm2']], $migration->getMigrationDependencies());
-    $this->assertNotEmpty($migration->getMigrationDependencies(), 'Migration dependencies is not empty');
   }
 
   /**