packages/flutter_test/test/bindings_environment/flutter_test_variable_is_null_test.dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// @dart = 2.9

import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  test('$WidgetsBinding initializes with $AutomatedTestWidgetsFlutterBinding when FLUTTER_TEST is defined but null', () {
    TestWidgetsFlutterBinding.ensureInitialized(<String, String>{'FLUTTER_TEST': null});
    expect(WidgetsBinding.instance, isA<AutomatedTestWidgetsFlutterBinding>());
  });
}