flutter/packages/unit/test/widget/page_transitions_test.dart
Adam Barth 727ce65ffc Add package:flutter_test
This package contains WidgetTester, which is very useful when writing tests for
widgets.
2015-11-23 14:09:12 -08:00

96 lines
3.0 KiB
Dart

// 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/material.dart';
import 'package:test/test.dart';
import 'test_matchers.dart';
class TestOverlayRoute extends OverlayRoute {
List<WidgetBuilder> get builders => <WidgetBuilder>[ _build ];
Widget _build(BuildContext context) => new Text('Overlay');
}
void main() {
test('Check onstage/offstage handling around transitions', () {
testWidgets((WidgetTester tester) {
GlobalKey containerKey = new GlobalKey();
final Map<String, RouteBuilder> routes = <String, RouteBuilder>{
'/': (_) => new Container(key: containerKey, child: new Text('Home')),
'/settings': (_) => new Container(child: new Text('Settings')),
};
tester.pumpWidget(new MaterialApp(routes: routes));
expect(tester.findText('Home'), isOnStage);
expect(tester.findText('Settings'), isNull);
expect(tester.findText('Overlay'), isNull);
NavigatorState navigator = Navigator.of(containerKey.currentContext);
navigator.pushNamed('/settings');
tester.pump();
expect(tester.findText('Home'), isOnStage);
expect(tester.findText('Settings'), isOffStage);
expect(tester.findText('Overlay'), isNull);
tester.pump(const Duration(milliseconds: 16));
expect(tester.findText('Home'), isOnStage);
expect(tester.findText('Settings'), isOnStage);
expect(tester.findText('Overlay'), isNull);
tester.pump(const Duration(seconds: 1));
expect(tester.findText('Home'), isNull);
expect(tester.findText('Settings'), isOnStage);
expect(tester.findText('Overlay'), isNull);
navigator.push(new TestOverlayRoute());
tester.pump();
expect(tester.findText('Home'), isNull);
expect(tester.findText('Settings'), isOnStage);
expect(tester.findText('Overlay'), isOnStage);
tester.pump(const Duration(seconds: 1));
expect(tester.findText('Home'), isNull);
expect(tester.findText('Settings'), isOnStage);
expect(tester.findText('Overlay'), isOnStage);
navigator.pop();
tester.pump();
expect(tester.findText('Home'), isNull);
expect(tester.findText('Settings'), isOnStage);
expect(tester.findText('Overlay'), isNull);
tester.pump(const Duration(seconds: 1));
expect(tester.findText('Home'), isNull);
expect(tester.findText('Settings'), isOnStage);
expect(tester.findText('Overlay'), isNull);
navigator.pop();
tester.pump();
expect(tester.findText('Home'), isOnStage);
expect(tester.findText('Settings'), isOnStage);
expect(tester.findText('Overlay'), isNull);
tester.pump(const Duration(seconds: 1));
expect(tester.findText('Home'), isOnStage);
expect(tester.findText('Settings'), isNull);
expect(tester.findText('Overlay'), isNull);
});
});
}