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358 lines
15 KiB
358 lines
15 KiB
// Copyright 2021 The Flutter team. 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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// ignore_for_file: avoid_types_on_closure_parameters
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:material_3_demo/component_screen.dart';
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import 'package:material_3_demo/main.dart';
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void main() {
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testWidgets('Default main page shows all M3 components', (tester) async {
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widgetSetup(tester, 800, windowHeight: 7000);
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await tester.pumpWidget(const App());
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// Elements on the app bar
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expect(find.text('Material 3'), findsOneWidget);
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expect(
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find.widgetWithIcon(AppBar, Icons.dark_mode_outlined), findsOneWidget);
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expect(find.widgetWithIcon(AppBar, Icons.filter_2), findsOneWidget);
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expect(find.widgetWithIcon(AppBar, Icons.palette_outlined), findsOneWidget);
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// Elements on the component screen
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// Common buttons
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expect(find.widgetWithText(ElevatedButton, 'Elevated'), findsNWidgets(2));
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expect(find.widgetWithText(FilledButton, 'Filled'), findsNWidgets(2));
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expect(find.widgetWithText(FilledButton, 'Filled tonal'), findsNWidgets(2));
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expect(find.widgetWithText(OutlinedButton, 'Outlined'), findsNWidgets(2));
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expect(find.widgetWithText(TextButton, 'Text'), findsNWidgets(2));
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expect(find.widgetWithText(Buttons, 'Icon'), findsNWidgets(5));
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// FABs
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expect(
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find.byType(FloatingActionButton),
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findsNWidgets(
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6)); // 2 more show up in the bottom app bar. 1 more in the navigation rail
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expect(find.widgetWithText(FloatingActionButton, 'Create'), findsOneWidget);
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// Icon buttons
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expect(find.widgetWithIcon(IconButton, Icons.settings_outlined),
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findsNWidgets(8));
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// Segmented buttons
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expect(find.byType(SegmentedButton<Calendar>), findsOneWidget);
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expect(find.byType(SegmentedButton<Sizes>), findsOneWidget);
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// Badges
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expect(find.byType(Badge), findsNWidgets(4));
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// Progress indicators
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Finder circularProgressIndicator = find.byType(CircularProgressIndicator);
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expect(circularProgressIndicator, findsOneWidget);
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Finder linearProgressIndicator = find.byType(LinearProgressIndicator);
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expect(linearProgressIndicator, findsOneWidget);
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// Snackbar
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expect(find.widgetWithText(TextButton, 'Show snackbar'), findsOneWidget);
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// Bottom sheet
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expect(find.widgetWithText(TextButton, 'Show modal bottom sheet'),
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findsOneWidget);
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expect(
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find.widgetWithText(TextButton, 'Show bottom sheet'), findsOneWidget);
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// Cards
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expect(find.widgetWithText(Cards, 'Elevated'), findsOneWidget);
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expect(find.widgetWithText(Cards, 'Filled'), findsOneWidget);
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expect(find.widgetWithText(Cards, 'Outlined'), findsOneWidget);
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// Dialogs
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expect(find.widgetWithText(TextButton, 'Show dialog'), findsOneWidget);
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expect(find.widgetWithText(TextButton, 'Show full-screen dialog'),
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findsOneWidget);
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// Dividers
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expect(find.byKey(const Key('divider')), findsOneWidget);
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// Bottom app bar
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expect(find.byType(BottomAppBar), findsOneWidget);
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// Navigation bar
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// Third one is off screen in the scaffold
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expect(find.byType(NavigationBar), findsNWidgets(3));
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// Navigation drawer
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expect(find.byType(Drawer), findsOneWidget);
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expect(find.widgetWithText(TextButton, 'Show modal navigation drawer'),
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findsOneWidget);
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// Navigation rail
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// Second one is off screen in the scaffold
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expect(find.byType(NavigationRail), findsNWidgets(2));
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// Tabs
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expect(find.byType(TabBar), findsOneWidget);
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// Search
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expect(find.byType(SearchBar), findsOneWidget);
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// Top app bars
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expect(find.byType(AppBar), findsNWidgets(6));
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// Checkboxes
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Finder checkboxExample = find.byType(CheckboxListTile);
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expect(checkboxExample, findsNWidgets(4));
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// Chips
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expect(find.byType(ActionChip),
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findsNWidgets(4)); // includes Assist and Suggestion chip.
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expect(find.byType(FilterChip), findsNWidgets(2));
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expect(find.byType(InputChip), findsNWidgets(2));
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// Date pickers
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expect(find.widgetWithText(TextButton, 'Show date picker'), findsOneWidget);
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// Menus
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expect(find.byType(MenuAnchor), findsNWidgets(5));
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expect(find.byType(DropdownMenu<ColorLabel>), findsOneWidget);
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expect(find.byType(DropdownMenu<IconLabel>), findsOneWidget);
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// Radios
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Finder radioExample = find.byType(RadioListTile<Options>);
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expect(radioExample, findsNWidgets(3));
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// Sliders
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expect(find.byType(Slider), findsNWidgets(2));
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// Switches
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expect(find.byType(Switch), findsNWidgets(4));
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// Time pickers
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expect(find.widgetWithText(TextButton, 'Show time picker'), findsOneWidget);
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// TextFields
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expect(find.widgetWithText(TextField, 'Disabled'), findsNWidgets(2));
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expect(find.widgetWithText(TextField, 'Filled'), findsNWidgets(2));
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expect(find.widgetWithText(TextField, 'Outlined'), findsNWidgets(2));
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});
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testWidgets(
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'NavigationRail doesn\'t show when width value is small than 1000 '
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'(in Portrait mode or narrow screen)', (tester) async {
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widgetSetup(tester, 999, windowHeight: 7000);
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await tester.pumpWidget(const App());
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await tester.pumpAndSettle();
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// When screen width is less than 1000, NavigationBar will show. At the same
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// time, the NavigationBar example still show up in the navigation group.
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expect(find.byType(NavigationBars),
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findsNWidgets(3)); // The real navBar, badges example and navBar example
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expect(find.widgetWithText(NavigationBar, 'Components'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Color'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Typography'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Elevation'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Explore'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Pets'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Account'), findsOneWidget);
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});
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testWidgets(
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'NavigationRail shows when width value is greater than or equal '
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'to 1000 (in Landscape mode or wider screen)', (tester) async {
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widgetSetup(tester, 1001, windowHeight: 3000);
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await tester.pumpWidget(const App());
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await tester.pumpAndSettle();
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// When screen width is greater than or equal to 1000, NavigationRail will show.
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// At the same time, the NavigationBar will NOT show.
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expect(find.byType(NavigationRail), findsNWidgets(2));
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expect(find.byType(Tooltip, skipOffstage: false), findsWidgets);
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expect(find.widgetWithText(NavigationRail, 'Components'), findsOneWidget);
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expect(find.widgetWithText(NavigationRail, 'Color'), findsOneWidget);
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expect(find.widgetWithText(NavigationRail, 'Typography'), findsOneWidget);
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expect(find.widgetWithText(NavigationRail, 'Elevation'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Explore'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Pets'), findsOneWidget);
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expect(find.widgetWithText(NavigationBar, 'Account'), findsOneWidget);
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// the Navigation bar should be out of screen.
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final RenderBox box =
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tester.renderObject(find.widgetWithText(NavigationBar, 'Components'));
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expect(box.localToGlobal(Offset.zero), const Offset(0.0, 3080.0));
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});
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testWidgets(
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'Material version switches between Material3 and Material2 when'
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'the version icon is clicked', (tester) async {
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widgetSetup(tester, 450, windowHeight: 7000);
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await tester.pumpWidget(const App());
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BuildContext defaultElevatedButton =
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tester.firstElement(find.byType(ElevatedButton));
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BuildContext defaultIconButton =
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tester.firstElement(find.byType(IconButton));
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BuildContext defaultFAB =
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tester.firstElement(find.byType(FloatingActionButton));
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BuildContext defaultCard =
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tester.firstElement(find.widgetWithText(Card, 'Elevated'));
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BuildContext defaultChip =
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tester.firstElement(find.widgetWithText(ActionChip, 'Assist'));
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Finder dialog = find.text('Show dialog');
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await tester.tap(dialog);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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BuildContext defaultAlertDialog = tester.element(find.byType(AlertDialog));
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expect(Theme.of(defaultAlertDialog).useMaterial3, true);
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Finder dismiss = find.text('Okay');
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await tester.tap(dismiss);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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expect(find.widgetWithIcon(AppBar, Icons.filter_2), findsOneWidget);
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expect(find.widgetWithIcon(AppBar, Icons.filter_3), findsNothing);
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expect(find.text('Material 3'), findsOneWidget);
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expect(Theme.of(defaultElevatedButton).useMaterial3, true);
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expect(Theme.of(defaultIconButton).useMaterial3, true);
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expect(Theme.of(defaultFAB).useMaterial3, true);
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expect(Theme.of(defaultCard).useMaterial3, true);
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expect(Theme.of(defaultChip).useMaterial3, true);
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Finder appbarM3Icon = find.descendant(
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of: find.byType(AppBar),
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matching: find.widgetWithIcon(IconButton, Icons.filter_2));
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await tester.tap(appbarM3Icon);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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BuildContext updatedElevatedButton =
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tester.firstElement(find.byType(ElevatedButton));
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BuildContext updatedIconButton =
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tester.firstElement(find.byType(IconButton));
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BuildContext updatedFAB =
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tester.firstElement(find.byType(FloatingActionButton));
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BuildContext updatedCard = tester.firstElement(find.byType(Card));
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BuildContext updatedChip =
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tester.firstElement(find.widgetWithText(ActionChip, 'Assist'));
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Finder updatedDialog = find.text('Show dialog');
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await tester.tap(updatedDialog);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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BuildContext updatedAlertDialog =
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tester.firstElement(find.byType(AlertDialog));
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expect(Theme.of(updatedAlertDialog).useMaterial3, false);
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Finder updatedDismiss = find.text('Dismiss');
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await tester.tap(updatedDismiss);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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expect(find.widgetWithIcon(AppBar, Icons.filter_3), findsOneWidget);
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expect(find.widgetWithIcon(AppBar, Icons.filter_2), findsNothing);
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expect(find.text('Material 2'), findsOneWidget);
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expect(Theme.of(updatedElevatedButton).useMaterial3, false);
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expect(Theme.of(updatedIconButton).useMaterial3, false);
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expect(Theme.of(updatedFAB).useMaterial3, false);
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expect(Theme.of(updatedCard).useMaterial3, false);
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expect(Theme.of(updatedChip).useMaterial3, false);
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});
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testWidgets(
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'Other screens become Material2 mode after changing mode from '
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'main screen', (tester) async {
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await tester.pumpWidget(const App());
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Finder appbarM2Icon = find.descendant(
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of: find.byType(AppBar),
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matching: find.widgetWithIcon(IconButton, Icons.filter_2));
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await tester.tap(appbarM2Icon);
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Finder secondScreenIcon = find.descendant(
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of: find.byType(NavigationBar),
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matching: find.widgetWithIcon(
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NavigationDestination, Icons.format_paint_outlined));
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await tester.tap(secondScreenIcon);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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BuildContext lightThemeText =
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tester.element(find.text('Light ColorScheme'));
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expect(Theme.of(lightThemeText).useMaterial3, false);
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Finder thirdScreenIcon = find.descendant(
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of: find.byType(NavigationBar),
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matching: find.widgetWithIcon(
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NavigationDestination, Icons.text_snippet_outlined));
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await tester.tap(thirdScreenIcon);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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BuildContext displayLargeText = tester.element(find.text('Display Large'));
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expect(Theme.of(displayLargeText).useMaterial3, false);
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Finder fourthScreenIcon = find.descendant(
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of: find.byType(NavigationBar),
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matching: find.widgetWithIcon(
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NavigationDestination, Icons.invert_colors_on_outlined));
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await tester.tap(fourthScreenIcon);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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BuildContext material = tester.firstElement(find.byType(Material));
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expect(Theme.of(material).useMaterial3, false);
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});
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testWidgets(
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'Brightness mode switches between dark and light when'
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'the brightness icon is clicked', (tester) async {
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await tester.pumpWidget(const App());
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Finder lightIcon = find.descendant(
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of: find.byType(AppBar),
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matching: find.widgetWithIcon(IconButton, Icons.light_mode_outlined));
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Finder darkIcon = find.descendant(
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of: find.byType(AppBar),
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matching: find.widgetWithIcon(IconButton, Icons.dark_mode_outlined));
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BuildContext appBar = tester.element(find.byType(AppBar).first);
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BuildContext body = tester.firstElement(find.byType(Scaffold).first);
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BuildContext navigationRail = tester.element(
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find.widgetWithIcon(NavigationRail, Icons.format_paint_outlined));
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expect(darkIcon, findsOneWidget);
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expect(lightIcon, findsNothing);
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expect(Theme.of(appBar).brightness, Brightness.light);
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expect(Theme.of(body).brightness, Brightness.light);
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expect(Theme.of(navigationRail).brightness, Brightness.light);
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await tester.tap(darkIcon);
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await tester.pumpAndSettle(const Duration(microseconds: 500));
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BuildContext appBar2 = tester.element(find.byType(AppBar).first);
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BuildContext body2 = tester.element(find.byType(Scaffold).first);
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BuildContext navigationRail2 = tester.element(
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find.widgetWithIcon(NavigationRail, Icons.format_paint_outlined));
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expect(darkIcon, findsNothing);
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expect(lightIcon, findsOneWidget);
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expect(Theme.of(appBar2).brightness, Brightness.dark);
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expect(Theme.of(body2).brightness, Brightness.dark);
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expect(Theme.of(navigationRail2).brightness, Brightness.dark);
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});
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testWidgets('Color theme changes when a color is selected from menu',
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(tester) async {
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Color m3BaseColor = const Color(0xff6750a4);
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await tester.pumpWidget(Container());
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await tester.pumpWidget(const App());
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await tester.pump();
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Finder menuIcon = find.descendant(
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of: find.byType(AppBar),
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matching: find.widgetWithIcon(IconButton, Icons.palette_outlined));
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BuildContext appBar = tester
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.element(find.widgetWithIcon(AppBar, Icons.palette_outlined).first);
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BuildContext body = tester.element(find.byType(Scaffold).first);
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expect(Theme.of(appBar).primaryColor, m3BaseColor);
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expect(Theme.of(body).primaryColor, m3BaseColor);
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await tester.tap(menuIcon);
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await tester.pumpAndSettle();
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await tester.tap(find.text('Blue').last);
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await tester.pumpAndSettle();
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BuildContext appBar2 = tester.element(find.byType(AppBar).first);
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BuildContext body2 = tester.element(find.byType(Scaffold).first);
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ThemeData expectedTheme = ThemeData(colorSchemeSeed: Colors.blue);
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expect(Theme.of(appBar2).primaryColor, expectedTheme.primaryColor);
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expect(Theme.of(body2).primaryColor, expectedTheme.primaryColor);
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});
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}
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void widgetSetup(WidgetTester tester, double windowWidth,
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{double? windowHeight}) {
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final height = windowHeight ?? 846;
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tester.view.devicePixelRatio = 2;
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final dpi = tester.view.devicePixelRatio;
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tester.view.physicalSize = Size(windowWidth * dpi, height * dpi);
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}
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