flutter/examples/api/test/widgets/overlay/overlay.0_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

55 lines
1.9 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/overlay/overlay.0.dart' as example;
import 'package:flutter_test/flutter_test.dart';
void main() {
testWidgets('Can use Overlay to highlight NavigationBar destination', (
WidgetTester tester,
) async {
const String explorePage = 'Explore page';
const String commutePage = 'Commute page';
const String savedPage = 'Saved page';
await tester.pumpWidget(const example.OverlayApp());
expect(find.text(explorePage), findsNothing);
expect(find.text(commutePage), findsNothing);
expect(find.text(savedPage), findsNothing);
await tester.tap(find.widgetWithText(ElevatedButton, 'Explore'));
await tester.pumpAndSettle();
expect(find.text(explorePage), findsOneWidget);
await tester.tap(find.widgetWithText(ElevatedButton, 'Commute'));
await tester.pumpAndSettle();
expect(find.text(commutePage), findsOneWidget);
await tester.tap(find.widgetWithText(ElevatedButton, 'Saved'));
await tester.pumpAndSettle();
expect(find.text(savedPage), findsOneWidget);
await tester.tap(find.widgetWithText(ElevatedButton, 'Remove Overlay'));
await tester.pumpAndSettle();
expect(find.text(explorePage), findsNothing);
expect(find.text(commutePage), findsNothing);
expect(find.text(savedPage), findsNothing);
});
testWidgets('Narrow layout does not overflow', (WidgetTester tester) async {
// Set a narrow screen size.
tester.view
..physicalSize = const Size(320, 480)
..devicePixelRatio = 1;
addTearDown(tester.view.reset);
await tester.pumpWidget(const example.OverlayApp());
// Verify that no overflow errors occur.
expect(tester.takeException(), isNull);
});
}