mirror of
https://github.com/flutter/flutter.git
synced 2025-06-03 00:51:18 +00:00
476e2d5166
fixes [Showcase `Badge` widget in `NavigationBar` and `NavigationRail` examples ](https://github.com/flutter/flutter/issues/129832) | Preview | Preview | Preview | | --------------- | --------------- | --------------- | | <img src="https://github.com/flutter/flutter/assets/48603081/808c9577-c6b4-465f-b9fe-100d422dd408" /> | <img src="https://github.com/flutter/flutter/assets/48603081/c9b3ee03-56d7-4220-94cf-06e235631714" /> | <img src="https://github.com/flutter/flutter/assets/48603081/43fab47b-25e8-4412-92d2-6d4868e43ff8" /> |
53 lines
1.8 KiB
Dart
53 lines
1.8 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/material/navigation_bar/navigation_bar.0.dart'
|
|
as example;
|
|
import 'package:flutter_test/flutter_test.dart';
|
|
|
|
void main() {
|
|
testWidgets('Navigation bar updates destination on tap',
|
|
(WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
const example.NavigationBarApp(),
|
|
);
|
|
final NavigationBar navigationBarWidget = tester.firstWidget(find.byType(NavigationBar));
|
|
|
|
/// NavigationDestinations must be rendered
|
|
expect(find.text('Home'), findsOneWidget);
|
|
expect(find.text('Notifications'), findsOneWidget);
|
|
expect(find.text('Messages'), findsOneWidget);
|
|
|
|
/// Test notification badge.
|
|
final Badge notificationBadge = tester.firstWidget(find.ancestor(
|
|
of: find.byIcon(Icons.notifications_sharp),
|
|
matching: find.byType(Badge),
|
|
));
|
|
expect(notificationBadge.label, null);
|
|
|
|
/// Test messages badge.
|
|
final Badge messagesBadge = tester.firstWidget(find.ancestor(
|
|
of: find.byIcon(Icons.messenger_sharp),
|
|
matching: find.byType(Badge),
|
|
));
|
|
expect(messagesBadge.label, isNotNull);
|
|
|
|
/// Initial index must be zero
|
|
expect(navigationBarWidget.selectedIndex, 0);
|
|
expect(find.text('Home page'), findsOneWidget);
|
|
|
|
/// Switch to second tab
|
|
await tester.tap(find.text('Notifications'));
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('This is a notification'), findsNWidgets(2));
|
|
|
|
/// Switch to third tab
|
|
await tester.tap(find.text('Messages'));
|
|
await tester.pumpAndSettle();
|
|
expect(find.text('Hi!'), findsOneWidget);
|
|
expect(find.text('Hello'), findsOneWidget);
|
|
});
|
|
}
|