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3252701753
This makes it possible to substitute 'flutter run' for 'flutter test'
and actually watch a test run on a device.
For any test that depends on flutter_test:
1. Remove any import of 'package:test/test.dart'.
2. Replace `testWidgets('...', (WidgetTester tester) {`
with `testWidgets('...', (WidgetTester tester) async {`
3. Add an "await" in front of calls to any of the following:
* tap()
* tapAt()
* fling()
* flingFrom()
* scroll()
* scrollAt()
* pump()
* pumpWidget()
4. Replace any calls to `tester.flushMicrotasks()` with calls to
`await tester.idle()`.
There's a guarding API that you can use, if you have particularly
complicated tests, to get better error messages. Search for
TestAsyncUtils.
61 lines
1.3 KiB
Dart
61 lines
1.3 KiB
Dart
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter_test/flutter_test.dart';
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import 'package:flutter/widgets.dart';
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ChangerState changer;
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class Changer extends StatefulWidget {
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Changer(this.child);
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final Widget child;
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@override
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ChangerState createState() => new ChangerState();
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}
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class ChangerState extends State<Changer> {
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bool _state = false;
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@override
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void initState() {
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super.initState();
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changer = this;
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}
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void test() { setState(() { _state = true; }); }
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@override
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Widget build(BuildContext context) => _state ? new Wrapper(config.child) : config.child;
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}
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class Wrapper extends StatelessWidget {
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Wrapper(this.child);
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final Widget child;
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@override
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Widget build(BuildContext context) => child;
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}
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class Leaf extends StatefulWidget {
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@override
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LeafState createState() => new LeafState();
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}
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class LeafState extends State<Leaf> {
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@override
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Widget build(BuildContext context) => new Text("leaf");
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}
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void main() {
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testWidgets('three-way setState() smoke test', (WidgetTester tester) async {
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await tester.pumpWidget(new Changer(new Wrapper(new Leaf())));
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await tester.pumpWidget(new Changer(new Wrapper(new Leaf())));
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changer.test();
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await tester.pump();
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});
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}
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