// Copyright 2015 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. import 'package:flutter_test/flutter_test.dart'; import 'package:flutter/rendering.dart'; import 'package:flutter/material.dart'; import 'package:test/test.dart'; void main() { test('LinearProgressIndicator changes when its value changes', () { testWidgets((WidgetTester tester) { tester.pumpWidget(new Block(children: <Widget>[new LinearProgressIndicator(value: 0.0)])); List<Layer> layers1 = tester.layers; tester.pumpWidget(new Block(children: <Widget>[new LinearProgressIndicator(value: 0.5)])); List<Layer> layers2 = tester.layers; expect(layers1, isNot(equals(layers2))); }); }); }