286 lines
11 KiB
Dart
286 lines
11 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/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('debugCheckHasMaterial control test', (WidgetTester tester) async {
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await tester.pumpWidget(const ListTile());
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final dynamic exception = tester.takeException();
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expect(exception, isFlutterError);
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final FlutterError error = exception as FlutterError;
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expect(error.diagnostics.length, 5);
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expect(error.diagnostics[2].level, DiagnosticLevel.hint);
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expect(
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error.diagnostics[2].toStringDeep(),
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equalsIgnoringHashCodes(
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'To introduce a Material widget, you can either directly include\n'
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'one, or use a widget that contains Material itself, such as a\n'
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'Card, Dialog, Drawer, or Scaffold.\n',
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),
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);
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expect(error.diagnostics[3], isA<DiagnosticsProperty<Element>>());
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expect(error.diagnostics[4], isA<DiagnosticsBlock>());
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expect(error.toStringDeep(),
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'FlutterError\n'
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' No Material widget found.\n'
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' ListTile widgets require a Material widget ancestor.\n'
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' In material design, most widgets are conceptually "printed" on a\n'
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" sheet of material. In Flutter's material library, that material\n"
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' is represented by the Material widget. It is the Material widget\n'
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' that renders ink splashes, for instance. Because of this, many\n'
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' material library widgets require that there be a Material widget\n'
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' in the tree above them.\n'
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' To introduce a Material widget, you can either directly include\n'
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' one, or use a widget that contains Material itself, such as a\n'
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' Card, Dialog, Drawer, or Scaffold.\n'
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' The specific widget that could not find a Material ancestor was:\n'
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' ListTile\n'
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' The ancestors of this widget were:\n'
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' [root]\n'
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);
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});
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testWidgets('debugCheckHasMaterialLocalizations control test', (
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WidgetTester tester) async {
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await tester.pumpWidget(const BackButton());
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final dynamic exception = tester.takeException();
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expect(exception, isFlutterError);
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final FlutterError error = exception as FlutterError;
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expect(error.diagnostics.length, 6);
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expect(error.diagnostics[3].level, DiagnosticLevel.hint);
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expect(
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error.diagnostics[3].toStringDeep(),
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equalsIgnoringHashCodes(
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'To introduce a MaterialLocalizations, either use a MaterialApp at\n'
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'the root of your application to include them automatically, or\n'
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'add a Localization widget with a MaterialLocalizations delegate.\n',
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),
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);
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expect(error.diagnostics[4], isA<DiagnosticsProperty<Element>>());
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expect(error.diagnostics[5], isA<DiagnosticsBlock>());
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expect(error.toStringDeep(),
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'FlutterError\n'
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' No MaterialLocalizations found.\n'
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' BackButton widgets require MaterialLocalizations to be provided\n'
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' by a Localizations widget ancestor.\n'
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' The material library uses Localizations to generate messages,\n'
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' labels, and abbreviations.\n'
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' To introduce a MaterialLocalizations, either use a MaterialApp at\n'
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' the root of your application to include them automatically, or\n'
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' add a Localization widget with a MaterialLocalizations delegate.\n'
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' The specific widget that could not find a MaterialLocalizations\n'
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' ancestor was:\n'
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' BackButton\n'
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' The ancestors of this widget were:\n'
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' [root]\n'
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);
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});
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testWidgets(
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'debugCheckHasScaffold control test', (WidgetTester tester) async {
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await tester.pumpWidget(
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MaterialApp(
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theme: ThemeData(
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pageTransitionsTheme: const PageTransitionsTheme(
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builders: <TargetPlatform, PageTransitionsBuilder>{
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TargetPlatform.android: FadeUpwardsPageTransitionsBuilder(),
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},
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),
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),
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home: Builder(
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builder: (BuildContext context) {
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showBottomSheet<void>(context: context,
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builder: (BuildContext context) => Container());
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return Container();
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}
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),
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),
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);
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final dynamic exception = tester.takeException();
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expect(exception, isFlutterError);
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final FlutterError error = exception as FlutterError;
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expect(error.diagnostics.length, 5);
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expect(error.diagnostics[2], isA<DiagnosticsProperty<Element>>());
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expect(error.diagnostics[3], isA<DiagnosticsBlock>());
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expect(error.diagnostics[4].level, DiagnosticLevel.hint);
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expect(
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error.diagnostics[4].toStringDeep(),
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equalsIgnoringHashCodes(
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'Typically, the Scaffold widget is introduced by the MaterialApp\n'
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'or WidgetsApp widget at the top of your application widget tree.\n',
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),
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);
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expect(error.toStringDeep(), equalsIgnoringHashCodes(
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'FlutterError\n'
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' No Scaffold widget found.\n'
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' Builder widgets require a Scaffold widget ancestor.\n'
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' The specific widget that could not find a Scaffold ancestor was:\n'
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' Builder\n'
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' The ancestors of this widget were:\n'
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' Semantics\n'
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' Builder\n'
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' RepaintBoundary-[GlobalKey#00000]\n'
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' IgnorePointer\n'
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' AnimatedBuilder\n'
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' FadeTransition\n'
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' FractionalTranslation\n'
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' SlideTransition\n'
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' _FadeUpwardsPageTransition\n'
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' AnimatedBuilder\n'
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' RepaintBoundary\n'
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' _FocusMarker\n'
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' Semantics\n'
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' FocusScope\n'
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' _ActionsMarker\n'
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' Actions\n'
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' PageStorage\n'
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' Offstage\n'
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' _ModalScopeStatus\n'
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' UnmanagedRestorationScope\n'
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' RestorationScope\n'
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' AnimatedBuilder\n'
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' _ModalScope<dynamic>-[LabeledGlobalKey<_ModalScopeState<dynamic>>#00000]\n'
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' Semantics\n'
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' _EffectiveTickerMode\n'
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' TickerMode\n'
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' _OverlayEntryWidget-[LabeledGlobalKey<_OverlayEntryWidgetState>#00000]\n'
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' _Theatre\n'
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' Overlay-[LabeledGlobalKey<OverlayState>#00000]\n'
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' UnmanagedRestorationScope\n'
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' _FocusMarker\n'
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' Semantics\n'
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' FocusScope\n'
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' AbsorbPointer\n'
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' Listener\n'
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' HeroControllerScope\n'
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' Navigator-[GlobalObjectKey<NavigatorState> _WidgetsAppState#00000]\n'
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' IconTheme\n'
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' IconTheme\n'
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' _InheritedCupertinoTheme\n'
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' CupertinoTheme\n'
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' _InheritedTheme\n'
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' Theme\n'
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' AnimatedTheme\n'
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' _ScaffoldMessengerScope\n'
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' ScaffoldMessenger\n'
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' Builder\n'
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' DefaultTextStyle\n'
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' CustomPaint\n'
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' Banner\n'
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' CheckedModeBanner\n'
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' Title\n'
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' Directionality\n'
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' _LocalizationsScope-[GlobalKey#00000]\n'
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' Semantics\n'
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' Localizations\n'
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' MediaQuery\n'
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' _MediaQueryFromWindow\n'
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' _FocusMarker\n'
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' Focus\n'
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' _FocusTraversalGroupMarker\n'
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' FocusTraversalGroup\n'
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' _ActionsMarker\n'
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' Actions\n'
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' _ShortcutsMarker\n'
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' Semantics\n'
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' _FocusMarker\n'
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' Focus\n'
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' Shortcuts\n'
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' UnmanagedRestorationScope\n'
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' RestorationScope\n'
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' UnmanagedRestorationScope\n'
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' RootRestorationScope\n'
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' WidgetsApp-[GlobalObjectKey _MaterialAppState#00000]\n'
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' HeroControllerScope\n'
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' ScrollConfiguration\n'
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' MaterialApp\n'
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' [root]\n'
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' Typically, the Scaffold widget is introduced by the MaterialApp\n'
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' or WidgetsApp widget at the top of your application widget tree.\n',
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));
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});
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testWidgets('debugCheckHasScaffoldMessenger control test', (WidgetTester tester) async {
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final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
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final GlobalKey<ScaffoldMessengerState> _scaffoldMessengerKey = GlobalKey<ScaffoldMessengerState>();
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final SnackBar snackBar = SnackBar(
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content: const Text('Snack'),
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action: SnackBarAction(label: 'Test', onPressed: () {})
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);
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await tester.pumpWidget(Directionality(
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textDirection: TextDirection.ltr,
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child: MediaQuery(
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data: const MediaQueryData(),
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child: ScaffoldMessenger(
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key: _scaffoldMessengerKey,
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child: Builder(
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builder: (BuildContext context) {
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return Scaffold(
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key: _scaffoldKey,
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body: Container(),
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);
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}
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)
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),
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)
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));
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final List<dynamic> exceptions = <dynamic>[];
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final FlutterExceptionHandler? oldHandler = FlutterError.onError;
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FlutterError.onError = (FlutterErrorDetails details) {
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exceptions.add(details.exception);
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};
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// ScaffoldMessenger shows SnackBar.
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_scaffoldMessengerKey.currentState!.showSnackBar(snackBar);
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await tester.pumpAndSettle();
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// Pump widget to rebuild without ScaffoldMessenger
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await tester.pumpWidget(Directionality(
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textDirection: TextDirection.ltr,
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child: MediaQuery(
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data: const MediaQueryData(),
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child: Scaffold(
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key: _scaffoldKey,
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body: Container(),
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),
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),
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));
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// The Scaffold should assert we still have an ancestor ScaffoldMessenger in
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// order to dismiss the SnackBar from the ScaffoldMessenger.
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await tester.tap(find.text('Test'));
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FlutterError.onError = oldHandler;
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expect(exceptions.length, 1);
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expect(exceptions.single.runtimeType, FlutterError);
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final FlutterError error = exceptions.first as FlutterError;
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expect(error.diagnostics.length, 5);
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expect(error.diagnostics[2], isA<DiagnosticsProperty<Element>>());
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expect(error.diagnostics[3], isA<DiagnosticsBlock>());
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expect(error.diagnostics[4].level, DiagnosticLevel.hint);
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expect(
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error.diagnostics[4].toStringDeep(),
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equalsIgnoringHashCodes(
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'Typically, the ScaffoldMessenger widget is introduced by the\n'
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'MaterialApp at the top of your application widget tree.\n',
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),
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);
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expect(error.toStringDeep(), equalsIgnoringHashCodes(
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'FlutterError\n'
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' No ScaffoldMessenger widget found.\n'
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' Scaffold widgets require a ScaffoldMessenger widget ancestor.\n'
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' The specific widget that could not find a ScaffoldMessenger\n'
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' ancestor was:\n'
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' Scaffold-[LabeledGlobalKey<ScaffoldState>#00829]\n'
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' The ancestors of this widget were:\n'
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' MediaQuery\n'
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' Directionality\n'
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' [root]\n'
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' Typically, the ScaffoldMessenger widget is introduced by the\n'
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' MaterialApp at the top of your application widget tree.\n'
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));
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});
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}
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