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// 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/widgets.dart';
void main() {
testWidgets('Can hit test flex children of stacks', (WidgetTester tester) async {
bool didReceiveTap = false;
await tester.pumpWidget(
new Directionality(
textDirection: TextDirection.ltr,
child: new Container(
color: const Color(0xFF00FF00),
child: new Stack(
children: <Widget>[
new Positioned(
top: 10.0,
left: 10.0,
child: new Column(
children: <Widget>[
new GestureDetector(
onTap: () {
didReceiveTap = true;
},
child: new Container(
color: const Color(0xFF0000FF),
width: 100.0,
height: 100.0,
child: const Center(
child: const Text('X', textDirection: TextDirection.ltr),
),
),
),
],
),
),
],
),
),
),
);
await tester.tap(find.text('X'));
expect(didReceiveTap, isTrue);
});
testWidgets('Flexible defaults to loose', (WidgetTester tester) async {
await tester.pumpWidget(
new Row(
textDirection: TextDirection.ltr,
children: <Widget>[
const Flexible(child: const SizedBox(width: 100.0, height: 200.0)),
],
),
);
final RenderBox box = tester.renderObject(find.byType(SizedBox));
expect(box.size.width, 100.0);
});
testWidgets('Can pass null for flex', (WidgetTester tester) async {
await tester.pumpWidget(
new Row(
textDirection: TextDirection.ltr,
children: <Widget>[
const Expanded(flex: null, child: const Text('one', textDirection: TextDirection.ltr)),
const Flexible(flex: null, child: const Text('two', textDirection: TextDirection.ltr)),
],
),
);
});
testWidgets('Doesn\'t overflow because of floating point accumulated error', (WidgetTester tester) async {
// both of these cases have failed in the past due to floating point issues
await tester.pumpWidget(
new Center(
child: new Container(
height: 400.0,
child: new Column(
children: <Widget>[
new Expanded(child: new Container()),
new Expanded(child: new Container()),
new Expanded(child: new Container()),
new Expanded(child: new Container()),
new Expanded(child: new Container()),
new Expanded(child: new Container()),
],
),
),
),
);
await tester.pumpWidget(
new Center(
child: new Container(
height: 199.0,
child: new Column(
children: <Widget>[
new Expanded(child: new Container()),
new Expanded(child: new Container()),
new Expanded(child: new Container()),
new Expanded(child: new Container()),
new Expanded(child: new Container()),
new Expanded(child: new Container()),
],
),
),
),
);
});
}