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Add:创建 flutter go web 版

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ryan
2019-08-13 20:38:46 +08:00
parent 64513b59c1
commit da67ccf5a8
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packages/flutter_web/test/widgets/constrained_box_test.dart Normal file
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// Copyright 2018 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_web/material.dart';
import 'package:flutter_web/rendering.dart';
import 'package:flutter_web_test/flutter_web_test.dart';
void main() {
group('$ConstrainedBox', () {
testWidgets('sets tight constraint', (WidgetTester tester) async {
await tester.pumpWidget(new Directionality(
textDirection: TextDirection.ltr,
child: new Center(
child: new ConstrainedBox(
constraints: new BoxConstraints.tight(const Size(50.0, 60.0)),
child: new Text('Hello'),
),
),
));
final RenderBox renderText = tester.renderObject(find.byType(Text));
expect(renderText.size, const Size(50.0, 60.0));
final BoxParentData parentData =
tester.renderObject(find.byType(ConstrainedBox)).parentData;
expect(parentData.offset, const Offset(375.0, 270.0));
expect(find.text('Hello'), findsOneWidget);
});
testWidgets('sets min and max constraint', (WidgetTester tester) async {
await tester.pumpWidget(new Directionality(
textDirection: TextDirection.ltr,
child: new Center(
child: new ConstrainedBox(
constraints: new BoxConstraints(
minWidth: 50.0,
maxWidth: 60.0,
minHeight: 100.0,
maxHeight: 200.0),
child: new Text('Hello'),
),
),
));
final RenderBox renderText = tester.renderObject(find.byType(Text));
expect(renderText.size, const Size(60.0, 100.0));
final BoxParentData parentData =
tester.renderObject(find.byType(ConstrainedBox)).parentData;
expect(parentData.offset, const Offset(370.0, 250.0));
expect(find.text('Hello'), findsOneWidget);
});
test('throws error if given invalid constraints', () {
expect(
() => new ConstrainedBox(constraints: null, child: new Text('Hello')),
throwsAssertionError);
});
});
}