diff --git a/packages/firebase_core/firebase_core_platform_interface/lib/test.dart b/packages/firebase_core/firebase_core_platform_interface/lib/test.dart
index efe38fee905a..8790725b6f46 100644
--- a/packages/firebase_core/firebase_core_platform_interface/lib/test.dart
+++ b/packages/firebase_core/firebase_core_platform_interface/lib/test.dart
@@ -1,3 +1,11 @@
+// ignore_for_file: require_trailing_commas
+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/// Test helpers for this package.
+library;
+
 export 'package:firebase_core_platform_interface/src/pigeon/messages.pigeon.dart';
 export 'package:firebase_core_platform_interface/src/pigeon/mocks.dart';
 export 'package:firebase_core_platform_interface/src/pigeon/test_api.dart';