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bb4c9b381e
Reverts: flutter/flutter#139164 Initiated by: chunhtai Reason for reverting: hard breaking change Original PR Author: chunhtai Reviewed By: {justinmc} This change reverts the following previous change: Adds a generic type and pop result to popscope and its friend. The use cases are to be able to capture the result when the pop is called. migration guide: https://github.com/flutter/website/pull/9872
330 lines
10 KiB
Dart
330 lines
10 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
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void main() {
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testWidgets('Use home', (WidgetTester tester) async {
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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builder: (BuildContext context) => const Text('home'),
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),
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),
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);
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expect(find.text('home'), findsOneWidget);
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});
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testWidgets('Use routes', (WidgetTester tester) async {
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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routes: <String, WidgetBuilder>{
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'/': (BuildContext context) => const Text('first route'),
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},
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),
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),
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);
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expect(find.text('first route'), findsOneWidget);
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});
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testWidgets('Use home and named routes', (WidgetTester tester) async {
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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builder: (BuildContext context) {
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return CupertinoButton(
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child: const Text('go to second page'),
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onPressed: () {
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Navigator.of(context).pushNamed('/2');
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},
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);
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},
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routes: <String, WidgetBuilder>{
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'/2': (BuildContext context) => const Text('second named route'),
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},
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),
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),
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);
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expect(find.text('go to second page'), findsOneWidget);
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await tester.tap(find.text('go to second page'));
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await tester.pump();
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await tester.pump(const Duration(milliseconds: 300));
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expect(find.text('second named route'), findsOneWidget);
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});
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testWidgets('Use onGenerateRoute', (WidgetTester tester) async {
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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onGenerateRoute: (RouteSettings settings) {
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if (settings.name == Navigator.defaultRouteName) {
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return CupertinoPageRoute<void>(
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settings: settings,
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builder: (BuildContext context) {
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return const Text('generated home');
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},
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);
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}
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return null;
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},
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),
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),
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);
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expect(find.text('generated home'), findsOneWidget);
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});
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testWidgets('Use onUnknownRoute',
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experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(), // leaking by design because of exception
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(WidgetTester tester) async {
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late String unknownForRouteCalled;
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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onUnknownRoute: (RouteSettings settings) {
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unknownForRouteCalled = settings.name!;
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return null;
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},
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),
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),
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);
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expect(tester.takeException(), isFlutterError);
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expect(unknownForRouteCalled, '/');
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// Work-around for https://github.com/flutter/flutter/issues/65655.
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await tester.pumpWidget(Container());
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expect(tester.takeException(), isAssertionError);
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});
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testWidgets('Can use navigatorKey to navigate', (WidgetTester tester) async {
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final GlobalKey<NavigatorState> key = GlobalKey();
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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navigatorKey: key,
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builder: (BuildContext context) => const Text('first route'),
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routes: <String, WidgetBuilder>{
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'/2': (BuildContext context) => const Text('second route'),
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},
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),
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),
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);
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key.currentState!.pushNamed('/2');
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await tester.pump();
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await tester.pump(const Duration(milliseconds: 300));
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expect(find.text('second route'), findsOneWidget);
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});
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testWidgets('Changing the key resets the navigator', (WidgetTester tester) async {
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final GlobalKey<NavigatorState> key = GlobalKey();
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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builder: (BuildContext context) {
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return CupertinoButton(
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child: const Text('go to second page'),
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onPressed: () {
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Navigator.of(context).pushNamed('/2');
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},
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);
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},
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routes: <String, WidgetBuilder>{
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'/2': (BuildContext context) => const Text('second route'),
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},
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),
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),
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);
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expect(find.text('go to second page'), findsOneWidget);
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await tester.tap(find.text('go to second page'));
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await tester.pump();
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await tester.pump(const Duration(milliseconds: 300));
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expect(find.text('second route'), findsOneWidget);
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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key: key,
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builder: (BuildContext context) {
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return CupertinoButton(
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child: const Text('go to second page'),
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onPressed: () {
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Navigator.of(context).pushNamed('/2');
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},
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);
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},
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routes: <String, WidgetBuilder>{
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'/2': (BuildContext context) => const Text('second route'),
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},
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),
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),
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);
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// The stack is gone and we're back to a re-built page 1.
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expect(find.text('go to second page'), findsOneWidget);
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expect(find.text('second route'), findsNothing);
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});
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testWidgets('Throws FlutterError when onUnknownRoute is null', (WidgetTester tester) async {
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final GlobalKey<NavigatorState> key = GlobalKey();
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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navigatorKey: key,
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builder: (BuildContext context) => const Text('first route'),
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),
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),
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);
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late FlutterError error;
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try {
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key.currentState!.pushNamed('/2');
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} on FlutterError catch (e) {
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error = e;
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}
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expect(error, isNotNull);
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expect(
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error.toStringDeep(),
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equalsIgnoringHashCodes(
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'FlutterError\n'
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' Could not find a generator for route RouteSettings("/2", null) in\n'
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' the _CupertinoTabViewState.\n'
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' Generators for routes are searched for in the following order:\n'
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' 1. For the "/" route, the "builder" property, if non-null, is\n'
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' used.\n'
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' 2. Otherwise, the "routes" table is used, if it has an entry for\n'
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' the route.\n'
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' 3. Otherwise, onGenerateRoute is called. It should return a\n'
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' non-null value for any valid route not handled by "builder" and\n'
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' "routes".\n'
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' 4. Finally if all else fails onUnknownRoute is called.\n'
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' Unfortunately, onUnknownRoute was not set.\n',
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),
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);
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});
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testWidgets('Throws FlutterError when onUnknownRoute returns null', (WidgetTester tester) async {
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final GlobalKey<NavigatorState> key = GlobalKey<NavigatorState>();
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabView(
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navigatorKey: key,
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builder: (BuildContext context) => const Text('first route'),
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onUnknownRoute: (_) => null,
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),
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),
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);
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late FlutterError error;
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try {
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key.currentState!.pushNamed('/2');
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} on FlutterError catch (e) {
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error = e;
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}
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expect(error, isNotNull);
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expect(
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error.toStringDeep(),
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equalsIgnoringHashCodes(
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'FlutterError\n'
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' The onUnknownRoute callback returned null.\n'
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' When the _CupertinoTabViewState requested the route\n'
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' RouteSettings("/2", null) from its onUnknownRoute callback, the\n'
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' callback returned null. Such callbacks must never return null.\n',
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),
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);
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});
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testWidgets('Navigator of CupertinoTabView restores state', (WidgetTester tester) async {
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await tester.pumpWidget(
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CupertinoApp(
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restorationScopeId: 'app',
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home: CupertinoTabView(
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restorationScopeId: 'tab',
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builder: (BuildContext context) => CupertinoButton(
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child: const Text('home'),
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onPressed: () {
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Navigator.of(context).restorablePushNamed('/2');
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},
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),
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routes: <String, WidgetBuilder>{
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'/2' : (BuildContext context) => const Text('second route'),
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},
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),
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),
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);
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expect(find.text('home'), findsOneWidget);
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await tester.tap(find.text('home'));
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await tester.pumpAndSettle();
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expect(find.text('home'), findsNothing);
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expect(find.text('second route'), findsOneWidget);
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final TestRestorationData data = await tester.getRestorationData();
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await tester.restartAndRestore();
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expect(find.text('home'), findsNothing);
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expect(find.text('second route'), findsOneWidget);
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Navigator.of(tester.element(find.text('second route'))).pop();
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await tester.pumpAndSettle();
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expect(find.text('home'), findsOneWidget);
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expect(find.text('second route'), findsNothing);
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await tester.restoreFrom(data);
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expect(find.text('home'), findsNothing);
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expect(find.text('second route'), findsOneWidget);
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Navigator.of(tester.element(find.text('second route'))).pop();
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await tester.pumpAndSettle();
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expect(find.text('home'), findsOneWidget);
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expect(find.text('second route'), findsNothing);
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});
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testWidgets('Handles Android back button', (WidgetTester tester) async {
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final GlobalKey<NavigatorState> key = GlobalKey<NavigatorState>();
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await tester.pumpWidget(
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CupertinoApp(
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home: CupertinoTabScaffold(
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tabBar: CupertinoTabBar(
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items: const <BottomNavigationBarItem>[
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BottomNavigationBarItem(label: '', icon: Text('1')),
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BottomNavigationBarItem(label: '', icon: Text('2'))
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],
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),
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tabBuilder: (_, int i) => PopScope(
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canPop: false,
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child: CupertinoTabView(
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navigatorKey: key,
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builder: (BuildContext context) => const Text('first route'),
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),
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),
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),
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),
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);
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expect(find.text('first route'), findsOneWidget);
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// Simulate android back button intent.
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final ByteData message = const JSONMethodCodec().encodeMethodCall(const MethodCall('popRoute'));
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await tester.binding.defaultBinaryMessenger.handlePlatformMessage('flutter/navigation', message, (_) {});
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await tester.pumpAndSettle();
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// Navigator didn't pop, so first route is still visible
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expect(find.text('first route'), findsOneWidget);
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});
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}
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