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.
88 lines
2.3 KiB
Dart
88 lines
2.3 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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class TestFlowDelegate extends FlowDelegate {
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TestFlowDelegate({
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Animation<double> startOffset
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}) : startOffset = startOffset, super(repaint: startOffset);
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final Animation<double> startOffset;
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@override
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BoxConstraints getConstraintsForChild(int i, BoxConstraints constraints) {
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return constraints.loosen();
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}
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@override
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void paintChildren(FlowPaintingContext context) {
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double dy = startOffset.value;
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for (int i = 0; i < context.childCount; ++i) {
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context.paintChild(i, transform: new Matrix4.translationValues(0.0, dy, 0.0));
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dy += 0.75 * context.getChildSize(i).height;
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}
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}
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@override
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bool shouldRepaint(TestFlowDelegate oldDelegate) => startOffset == oldDelegate.startOffset;
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}
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void main() {
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testWidgets('Flow control test', (WidgetTester tester) async {
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AnimationController startOffset = new AnimationController.unbounded();
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List<int> log = <int>[];
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Widget buildBox(int i) {
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return new GestureDetector(
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onTap: () {
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log.add(i);
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},
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child: new Container(
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width: 100.0,
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height: 100.0,
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decoration: const BoxDecoration(
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backgroundColor: const Color(0xFF0000FF)
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),
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child: new Text('$i')
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)
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);
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}
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await tester.pumpWidget(
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new Flow(
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delegate: new TestFlowDelegate(startOffset: startOffset),
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children: <Widget>[
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buildBox(0),
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buildBox(1),
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buildBox(2),
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buildBox(3),
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buildBox(4),
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buildBox(5),
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buildBox(6),
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]
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)
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);
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await tester.tap(find.text('0'));
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expect(log, equals(<int>[0]));
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await tester.tap(find.text('1'));
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expect(log, equals(<int>[0, 1]));
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await tester.tap(find.text('2'));
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expect(log, equals(<int>[0, 1, 2]));
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log.clear();
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await tester.tapAt(new Point(20.0, 90.0));
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expect(log, equals(<int>[1]));
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startOffset.value = 50.0;
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await tester.pump();
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log.clear();
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await tester.tapAt(new Point(20.0, 90.0));
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expect(log, equals(<int>[0]));
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});
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}
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