flutter/examples/api/test/widgets/basic/expanded.1_test.dart
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Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
2024-12-19 20:06:21 +00:00

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1.5 KiB
Dart

// Copyright 2014 The Flutter 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/material.dart';
import 'package:flutter_api_samples/widgets/basic/expanded.1.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Expanded widgets in a Row', (WidgetTester tester) async {
const double rowWidth = 800.0;
const double rowHeight = 100.0;
const double containerOneWidth = (rowWidth - 50) * 2 / 3;
const double containerTwoWidth = 50;
const double containerThreeWidth = (rowWidth - 50) * 1 / 3;
await tester.pumpWidget(const example.ExpandedApp());
final Size row = tester.getSize(find.byType(Row));
expect(row, const Size(rowWidth, rowHeight));
// This container is wrapped in an Expanded widget, so it should take up
// two thirds of the remaining space in the Row.
final Size containerOne = tester.getSize(find.byType(Container).at(0));
expect(containerOne, const Size(containerOneWidth, rowHeight));
final Size containerTwo = tester.getSize(find.byType(Container).at(1));
expect(containerTwo, const Size(containerTwoWidth, rowHeight));
// This container is wrapped in an Expanded widget, so it should take up
// one third of the remaining space in the Row.
final Size containerThree = tester.getSize(find.byType(Container).at(2));
expect(containerThree, const Size(containerThreeWidth, rowHeight));
});
}