diff --git a/core/modules/migrate_drupal_ui/src/Tests/d6/MigrateUpgrade6Test.php b/core/modules/migrate_drupal_ui/src/Tests/d6/MigrateUpgrade6Test.php
index 2a806de..f6f4124 100644
--- a/core/modules/migrate_drupal_ui/src/Tests/d6/MigrateUpgrade6Test.php
+++ b/core/modules/migrate_drupal_ui/src/Tests/d6/MigrateUpgrade6Test.php
@@ -81,8 +81,13 @@ protected function testMigrateUpgrade() {
 
     // Ensure migrated users can log in.
     $user = User::load(2);
-    $user->pass_raw = 'john.doe_pass';
-    $this->drupalLogin($user);
+    if ($user) {
+      $user->pass_raw = 'john.doe_pass';
+      $this->drupalLogin($user);
+    }
+    else {
+      $this->fail('User 2 was not migrated as expected.');
+    }
   }
 
 }
diff --git a/core/modules/migrate_drupal_ui/src/Tests/d7/MigrateUpgrade7Test.php b/core/modules/migrate_drupal_ui/src/Tests/d7/MigrateUpgrade7Test.php
index be807e4..1d7af59 100644
--- a/core/modules/migrate_drupal_ui/src/Tests/d7/MigrateUpgrade7Test.php
+++ b/core/modules/migrate_drupal_ui/src/Tests/d7/MigrateUpgrade7Test.php
@@ -82,8 +82,13 @@ protected function testMigrateUpgrade() {
 
     // Ensure migrated users can log in.
     $user = User::load(2);
-    $user->pass_raw = 'a password';
-    $this->drupalLogin($user);
+    if ($user) {
+      $user->pass_raw = 'a password';
+      $this->drupalLogin($user);
+    }
+    else {
+      $this->fail('User 2 was not migrated as expected.');
+    }
   }
 
 }