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flutter / mirrors / flutter / refs/heads/main / . / packages / flutter / test / material / date_picker_test.dart
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// 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.
// This file is run as part of a reduced test set in CI on Mac and Windows
// machines.
@Tags(<String>['reduced-test-set'])
library;
import 'dart:ui';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import '../widgets/clipboard_utils.dart';
void main() {
TestWidgetsFlutterBinding.ensureInitialized();
late DateTime firstDate;
late DateTime lastDate;
late DateTime? initialDate;
late DateTime today;
late SelectableDayPredicate? selectableDayPredicate;
late DatePickerEntryMode initialEntryMode;
late DatePickerMode initialCalendarMode;
late DatePickerEntryMode currentMode;
String? cancelText;
String? confirmText;
String? errorFormatText;
String? errorInvalidText;
String? fieldHintText;
String? fieldLabelText;
String? helpText;
TextInputType? keyboardType;
final Finder nextMonthIcon = find.byWidgetPredicate((Widget w) => w is IconButton && (w.tooltip?.startsWith('Next month') ?? false));
final Finder previousMonthIcon = find.byWidgetPredicate((Widget w) => w is IconButton && (w.tooltip?.startsWith('Previous month') ?? false));
final Finder switchToInputIcon = find.byIcon(Icons.edit);
final Finder switchToCalendarIcon = find.byIcon(Icons.calendar_today);
TextField textField(WidgetTester tester) {
return tester.widget<TextField>(find.byType(TextField));
}
setUp(() {
firstDate = DateTime(2001);
lastDate = DateTime(2031, DateTime.december, 31);
initialDate = DateTime(2016, DateTime.january, 15);
today = DateTime(2016, DateTime.january, 3);
selectableDayPredicate = null;
initialEntryMode = DatePickerEntryMode.calendar;
initialCalendarMode = DatePickerMode.day;
cancelText = null;
confirmText = null;
errorFormatText = null;
errorInvalidText = null;
fieldHintText = null;
fieldLabelText = null;
helpText = null;
keyboardType = null;
currentMode = initialEntryMode;
});
const Size wideWindowSize = Size(1920.0, 1080.0);
const Size narrowWindowSize = Size(1070.0, 1770.0);
Future<void> prepareDatePicker(
WidgetTester tester,
Future<void> Function(Future<DateTime?> date) callback, {
TextDirection textDirection = TextDirection.ltr,
bool useMaterial3 = false,
ThemeData? theme,
TextScaler textScaler = TextScaler.noScaling,
}) async {
late BuildContext buttonContext;
await tester.pumpWidget(MaterialApp(
theme: theme ?? ThemeData(useMaterial3: useMaterial3),
home: MediaQuery(
data: MediaQueryData(textScaler: textScaler),
child: Material(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
onPressed: () {
buttonContext = context;
},
child: const Text('Go'),
);
},
),
),
),
));
await tester.tap(find.text('Go'));
expect(buttonContext, isNotNull);
final Future<DateTime?> date = showDatePicker(
context: buttonContext,
initialDate: initialDate,
firstDate: firstDate,
lastDate: lastDate,
currentDate: today,
selectableDayPredicate: selectableDayPredicate,
initialDatePickerMode: initialCalendarMode,
initialEntryMode: initialEntryMode,
cancelText: cancelText,
confirmText: confirmText,
errorFormatText: errorFormatText,
errorInvalidText: errorInvalidText,
fieldHintText: fieldHintText,
fieldLabelText: fieldLabelText,
helpText: helpText,
keyboardType: keyboardType,
onDatePickerModeChange: (DatePickerEntryMode value) {
currentMode = value;
},
builder: (BuildContext context, Widget? child) {
return Directionality(
textDirection: textDirection,
child: child ?? const SizedBox(),
);
},
);
await tester.pumpAndSettle(const Duration(seconds: 1));
await callback(date);
}
group('showDatePicker Dialog', () {
testWidgets('Default dialog size', (WidgetTester tester) async {
Future<void> showPicker(WidgetTester tester, Size size) async {
tester.view.physicalSize = size;
tester.view.devicePixelRatio = 1.0;
addTearDown(tester.view.reset);
await prepareDatePicker(tester, (Future<DateTime?> date) async {}, useMaterial3: true);
}
const Size calendarLandscapeDialogSize = Size(496.0, 346.0);
const Size calendarPortraitDialogSizeM3 = Size(328.0, 512.0);
// Test landscape layout.
await showPicker(tester, wideWindowSize);
Size dialogContainerSize = tester.getSize(find.byType(AnimatedContainer));
expect(dialogContainerSize, calendarLandscapeDialogSize);
// Close the dialog.
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
// Test portrait layout.
await showPicker(tester, narrowWindowSize);
dialogContainerSize = tester.getSize(find.byType(AnimatedContainer));
expect(dialogContainerSize, calendarPortraitDialogSizeM3);
});
testWidgets('Default dialog properties', (WidgetTester tester) async {
final ThemeData theme = ThemeData(useMaterial3: true);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final Material dialogMaterial = tester.widget<Material>(
find.descendant(of: find.byType(Dialog),
matching: find.byType(Material),
).first);
expect(dialogMaterial.color, theme.colorScheme.surfaceContainerHigh);
expect(dialogMaterial.shadowColor, Colors.transparent);
expect(dialogMaterial.surfaceTintColor, Colors.transparent);
expect(dialogMaterial.elevation, 6.0);
expect(
dialogMaterial.shape,
const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(28.0))),
);
expect(dialogMaterial.clipBehavior, Clip.antiAlias);
final Dialog dialog = tester.widget<Dialog>(find.byType(Dialog));
expect(dialog.insetPadding, const EdgeInsets.symmetric(horizontal: 16.0, vertical: 24.0));
}, useMaterial3: theme.useMaterial3);
});
testWidgets('Material3 uses sentence case labels', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.text('Select date'), findsOneWidget);
}, useMaterial3: true);
});
testWidgets('Cancel, confirm, and help text is used', (WidgetTester tester) async {
cancelText = 'nope';
confirmText = 'yep';
helpText = 'help';
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.text(cancelText!), findsOneWidget);
expect(find.text(confirmText!), findsOneWidget);
expect(find.text(helpText!), findsOneWidget);
});
});
testWidgets('Initial date is the default', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('OK'));
expect(await date, DateTime(2016, DateTime.january, 15));
});
});
testWidgets('Can cancel', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('CANCEL'));
expect(await date, isNull);
});
});
testWidgets('Can switch from calendar to input entry mode', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.byType(TextField), findsNothing);
await tester.tap(find.byIcon(Icons.edit));
await tester.pumpAndSettle();
expect(find.byType(TextField), findsOneWidget);
});
});
testWidgets('Can switch from input to calendar entry mode', (WidgetTester tester) async {
initialEntryMode = DatePickerEntryMode.input;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.byType(TextField), findsOneWidget);
await tester.tap(find.byIcon(Icons.calendar_today));
await tester.pumpAndSettle();
expect(find.byType(TextField), findsNothing);
});
});
testWidgets('Can not switch out of calendarOnly mode', (WidgetTester tester) async {
initialEntryMode = DatePickerEntryMode.calendarOnly;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.byType(TextField), findsNothing);
expect(find.byIcon(Icons.edit), findsNothing);
});
});
testWidgets('Can not switch out of inputOnly mode', (WidgetTester tester) async {
initialEntryMode = DatePickerEntryMode.inputOnly;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.byType(TextField), findsOneWidget);
expect(find.byIcon(Icons.calendar_today), findsNothing);
});
});
testWidgets('Switching to input mode keeps selected date', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('12'));
await tester.tap(find.byIcon(Icons.edit));
await tester.pumpAndSettle();
await tester.tap(find.text('OK'));
expect(await date, DateTime(2016, DateTime.january, 12));
});
});
testWidgets('Input only mode should validate date', (WidgetTester tester) async {
initialEntryMode = DatePickerEntryMode.inputOnly;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Enter text input mode and type an invalid date to get error.
await tester.enterText(find.byType(TextField), '1234567');
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
expect(find.text('Invalid format.'), findsOneWidget);
});
});
testWidgets('Switching to input mode resets input error state', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Enter text input mode and type an invalid date to get error.
await tester.tap(find.byIcon(Icons.edit));
await tester.pumpAndSettle();
await tester.enterText(find.byType(TextField), '1234567');
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
expect(find.text('Invalid format.'), findsOneWidget);
// Toggle to calendar mode and then back to input mode
await tester.tap(find.byIcon(Icons.calendar_today));
await tester.pumpAndSettle();
await tester.tap(find.byIcon(Icons.edit));
await tester.pumpAndSettle();
expect(find.text('Invalid format.'), findsNothing);
// Edit the text, the error should not be showing until ok is tapped
await tester.enterText(find.byType(TextField), '1234567');
await tester.pumpAndSettle();
expect(find.text('Invalid format.'), findsNothing);
});
});
testWidgets('builder parameter', (WidgetTester tester) async {
Widget buildFrame(TextDirection textDirection) {
return MaterialApp(
home: Material(
child: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () {
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
builder: (BuildContext context, Widget? child) {
return Directionality(
textDirection: textDirection,
child: child ?? const SizedBox(),
);
},
);
},
);
},
),
),
),
);
}
await tester.pumpWidget(buildFrame(TextDirection.ltr));
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
final double ltrOkRight = tester.getBottomRight(find.text('OK')).dx;
await tester.tap(find.text('OK')); // Dismiss the dialog.
await tester.pumpAndSettle();
await tester.pumpWidget(buildFrame(TextDirection.rtl));
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
// Verify that the time picker is being laid out RTL.
// We expect the left edge of the 'OK' button in the RTL
// layout to match the gap between right edge of the 'OK'
// button and the right edge of the 800 wide view.
expect(tester.getBottomLeft(find.text('OK')).dx, moreOrLessEquals(800 - ltrOkRight));
});
group('Barrier dismissible', () {
late _DatePickerObserver rootObserver;
setUp(() {
rootObserver = _DatePickerObserver();
});
testWidgets('Barrier is dismissible with default parameter', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
navigatorObservers: <NavigatorObserver>[rootObserver],
home: Material(
child: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () =>
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
builder: (BuildContext context,
Widget? child) => const SizedBox(),
),
);
},
),
),
),
),
);
// Open the dialog.
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(rootObserver.datePickerCount, 1);
// Tap on the barrier.
await tester.tapAt(const Offset(10.0, 10.0));
await tester.pumpAndSettle();
expect(rootObserver.datePickerCount, 0);
});
testWidgets('Barrier is not dismissible with barrierDismissible is false', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
navigatorObservers: <NavigatorObserver>[rootObserver],
home: Material(
child: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () =>
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
barrierDismissible: false,
builder: (BuildContext context,
Widget? child) => const SizedBox(),
),
);
},
),
),
),
),
);
// Open the dialog.
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(rootObserver.datePickerCount, 1);
// Tap on the barrier, which shouldn't do anything this time.
await tester.tapAt(const Offset(10.0, 10.0));
await tester.pumpAndSettle();
expect(rootObserver.datePickerCount, 1);
});
});
testWidgets('Barrier color', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
home: Material(
child: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () =>
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
builder: (BuildContext context,
Widget? child) => const SizedBox(),
),
);
},
),
),
),
),
);
// Open the dialog.
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(tester.widget<ModalBarrier>(find.byType(ModalBarrier).last).color, Colors.black54);
// Dismiss the dialog.
await tester.tapAt(const Offset(10.0, 10.0));
await tester.pumpWidget(
MaterialApp(
home: Material(
child: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () =>
showDatePicker(
context: context,
barrierColor: Colors.pink,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
builder: (BuildContext context,
Widget? child) => const SizedBox(),
),
);
},
),
),
),
),
);
// Open the dialog.
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(tester.widget<ModalBarrier>(find.byType(ModalBarrier).last).color, Colors.pink);
});
testWidgets('Barrier Label', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
home: Material(
child: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () =>
showDatePicker(
context: context,
barrierLabel: 'Custom Label',
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
builder: (BuildContext context,
Widget? child) => const SizedBox(),
),
);
},
),
),
),
),
);
// Open the dialog.
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(tester.widget<ModalBarrier>(find.byType(ModalBarrier).last).semanticsLabel, 'Custom Label');
});
testWidgets('uses nested navigator if useRootNavigator is false', (WidgetTester tester) async {
final _DatePickerObserver rootObserver = _DatePickerObserver();
final _DatePickerObserver nestedObserver = _DatePickerObserver();
await tester.pumpWidget(MaterialApp(
navigatorObservers: <NavigatorObserver>[rootObserver],
home: Navigator(
observers: <NavigatorObserver>[nestedObserver],
onGenerateRoute: (RouteSettings settings) {
return MaterialPageRoute<dynamic>(
builder: (BuildContext context) {
return ElevatedButton(
onPressed: () {
showDatePicker(
context: context,
useRootNavigator: false,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
builder: (BuildContext context, Widget? child) => const SizedBox(),
);
},
child: const Text('Show Date Picker'),
);
},
);
},
),
));
// Open the dialog.
await tester.tap(find.byType(ElevatedButton));
expect(rootObserver.datePickerCount, 0);
expect(nestedObserver.datePickerCount, 1);
});
testWidgets('honors DialogTheme for shape and elevation', (WidgetTester tester) async {
// Test that the defaults work
const DialogTheme datePickerDefaultDialogTheme = DialogTheme(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(4.0)),
),
elevation: 24,
);
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(useMaterial3: false),
home: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () {
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
);
},
);
},
),
),
),
);
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
final Material defaultDialogMaterial = tester.widget<Material>(find.descendant(
of: find.byType(Dialog), matching: find.byType(Material)).first);
expect(defaultDialogMaterial.shape, datePickerDefaultDialogTheme.shape);
expect(defaultDialogMaterial.elevation, datePickerDefaultDialogTheme.elevation);
// Test that it honors ThemeData.dialogTheme settings
const DialogTheme customDialogTheme = DialogTheme(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(40.0)),
),
elevation: 50,
);
await tester.pumpWidget(
MaterialApp(
theme: ThemeData.fallback(useMaterial3: false).copyWith(dialogTheme: customDialogTheme),
home: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () {
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
);
},
);
},
),
),
),
);
await tester.pump(); // start theme animation
await tester.pump(const Duration(seconds: 5)); // end theme animation
final Material themeDialogMaterial = tester.widget<Material>(find.descendant(of: find.byType(Dialog), matching: find.byType(Material)).first);
expect(themeDialogMaterial.shape, customDialogTheme.shape);
expect(themeDialogMaterial.elevation, customDialogTheme.elevation);
});
testWidgets('OK Cancel button layout', (WidgetTester tester) async {
Widget buildFrame(TextDirection textDirection) {
return MaterialApp(
theme: ThemeData(useMaterial3: false),
home: Material(
child: Center(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('X'),
onPressed: () {
showDatePicker(
context: context,
initialDate: DateTime(2016, DateTime.january, 15),
firstDate:DateTime(2001),
lastDate: DateTime(2031, DateTime.december, 31),
builder: (BuildContext context, Widget? child) {
return Directionality(
textDirection: textDirection,
child: child ?? const SizedBox(),
);
},
);
},
);
},
),
),
),
);
}
// Default landscape layout.
await tester.pumpWidget(buildFrame(TextDirection.ltr));
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
expect(tester.getBottomRight(find.text('OK')).dx, 622);
expect(tester.getBottomLeft(find.text('OK')).dx, 594);
expect(tester.getBottomRight(find.text('CANCEL')).dx, 560);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
await tester.pumpWidget(buildFrame(TextDirection.rtl));
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
expect(tester.getBottomRight(find.text('OK')).dx, 206);
expect(tester.getBottomLeft(find.text('OK')).dx, 178);
expect(tester.getBottomRight(find.text('CANCEL')).dx, 324);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
// Portrait layout.
addTearDown(tester.view.reset);
tester.view.physicalSize = const Size(900, 1200);
await tester.pumpWidget(buildFrame(TextDirection.ltr));
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
expect(tester.getBottomRight(find.text('OK')).dx, 258);
expect(tester.getBottomLeft(find.text('OK')).dx, 230);
expect(tester.getBottomRight(find.text('CANCEL')).dx, 196);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
await tester.pumpWidget(buildFrame(TextDirection.rtl));
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
expect(tester.getBottomRight(find.text('OK')).dx, 70);
expect(tester.getBottomLeft(find.text('OK')).dx, 42);
expect(tester.getBottomRight(find.text('CANCEL')).dx, 188);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
});
testWidgets('honors switchToInputEntryModeIcon', (WidgetTester tester) async {
Widget buildApp({bool? useMaterial3, Icon? switchToInputEntryModeIcon}) {
return MaterialApp(
theme: ThemeData(
useMaterial3: useMaterial3 ?? false,
),
home: Material(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('Click X'),
onPressed: () {
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
switchToInputEntryModeIcon: switchToInputEntryModeIcon,
);
},
);
},
),
),
);
}
await tester.pumpWidget(buildApp());
await tester.pumpAndSettle();
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(find.byIcon(Icons.edit), findsOneWidget);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
await tester.pumpWidget(buildApp(useMaterial3: true));
await tester.pumpAndSettle();
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(find.byIcon(Icons.edit_outlined), findsOneWidget);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
await tester.pumpWidget(
buildApp(
switchToInputEntryModeIcon: const Icon(Icons.keyboard),
),
);
await tester.pumpAndSettle();
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(find.byIcon(Icons.keyboard), findsOneWidget);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
});
testWidgets('honors switchToCalendarEntryModeIcon', (WidgetTester tester) async {
Widget buildApp({bool? useMaterial3, Icon? switchToCalendarEntryModeIcon}) {
return MaterialApp(
theme: ThemeData(
useMaterial3: useMaterial3 ?? false,
),
home: Material(
child: Builder(
builder: (BuildContext context) {
return ElevatedButton(
child: const Text('Click X'),
onPressed: () {
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
switchToCalendarEntryModeIcon: switchToCalendarEntryModeIcon,
initialEntryMode: DatePickerEntryMode.input,
);
},
);
},
),
),
);
}
await tester.pumpWidget(buildApp());
await tester.pumpAndSettle();
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(find.byIcon(Icons.calendar_today), findsOneWidget);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
await tester.pumpWidget(buildApp(useMaterial3: true));
await tester.pumpAndSettle();
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(find.byIcon(Icons.calendar_today), findsOneWidget);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
await tester.pumpWidget(
buildApp(
switchToCalendarEntryModeIcon: const Icon(Icons.favorite),
),
);
await tester.pumpAndSettle();
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
expect(find.byIcon(Icons.favorite), findsOneWidget);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
});
});
group('Calendar mode', () {
testWidgets('Default Calendar mode layout (Landscape)', (WidgetTester tester) async {
final Finder helpText = find.text('Select date');
final Finder headerText = find.text('Fri, Jan 15');
final Finder subHeaderText = find.text('January 2016');
final Finder cancelButtonText = find.text('Cancel');
final Finder okButtonText = find.text('OK');
const EdgeInsets insetPadding = EdgeInsets.symmetric(horizontal: 16.0, vertical: 24.0);
tester.view.physicalSize = wideWindowSize;
addTearDown(tester.view.reset);
await tester.pumpWidget(MaterialApp(
theme: ThemeData(useMaterial3: true),
home: Material(
child: DatePickerDialog(
initialDate: initialDate,
firstDate: firstDate,
lastDate: lastDate,
),
),
));
expect(helpText, findsOneWidget);
expect(headerText, findsOneWidget);
expect(subHeaderText, findsOneWidget);
expect(cancelButtonText, findsOneWidget);
expect(okButtonText, findsOneWidget);
// Test help text position.
final Offset dialogTopLeft = tester.getTopLeft(find.byType(AnimatedContainer));
final Offset helpTextTopLeft = tester.getTopLeft(helpText);
expect(helpTextTopLeft.dx, dialogTopLeft.dx + (insetPadding.horizontal / 2));
expect(helpTextTopLeft.dy, dialogTopLeft.dy + 16.0);
// Test header text position.
final Offset headerTextTopLeft = tester.getTopLeft(headerText);
final Offset helpTextBottomLeft = tester.getBottomLeft(helpText);
expect(headerTextTopLeft.dx, dialogTopLeft.dx + (insetPadding.horizontal / 2));
expect(headerTextTopLeft.dy, helpTextBottomLeft.dy + 16.0);
// Test switch button position.
final Finder switchButtonM3 = find.widgetWithIcon(IconButton, Icons.edit_outlined);
final Offset switchButtonTopLeft = tester.getTopLeft(switchButtonM3);
final Offset switchButtonBottomLeft = tester.getBottomLeft(switchButtonM3);
final Offset headerTextBottomLeft = tester.getBottomLeft(headerText);
final Offset dialogBottomLeft = tester.getBottomLeft(find.byType(AnimatedContainer));
expect(switchButtonTopLeft.dx, dialogTopLeft.dx + 8.0);
expect(switchButtonTopLeft.dy, headerTextBottomLeft.dy);
expect(switchButtonBottomLeft.dx, dialogTopLeft.dx + 8.0);
expect(switchButtonBottomLeft.dy, dialogBottomLeft.dy - 6.0);
// Test vertical divider position.
final Finder divider = find.byType(VerticalDivider);
final Offset dividerTopLeft = tester.getTopLeft(divider);
final Offset headerTextTopRight = tester.getTopRight(headerText);
expect(dividerTopLeft.dx, headerTextTopRight.dx + 16.0);
expect(dividerTopLeft.dy, dialogTopLeft.dy);
// Test sub header text position.
final Offset subHeaderTextTopLeft = tester.getTopLeft(subHeaderText);
final Offset dividerTopRight = tester.getTopRight(divider);
expect(subHeaderTextTopLeft.dx, dividerTopRight.dx + 24.0);
if (!kIsWeb || isSkiaWeb) { // https://github.com/flutter/flutter/issues/99933
expect(subHeaderTextTopLeft.dy, dialogTopLeft.dy + 16.0);
}
// Test sub header icon position.
final Finder subHeaderIcon = find.byIcon(Icons.arrow_drop_down);
final Offset subHeaderIconTopLeft = tester.getTopLeft(subHeaderIcon);
final Offset subHeaderTextTopRight = tester.getTopRight(subHeaderText);
expect(subHeaderIconTopLeft.dx, subHeaderTextTopRight.dx);
expect(subHeaderIconTopLeft.dy, dialogTopLeft.dy + 14.0);
// Test calendar page view position.
final Finder calendarPageView = find.byType(PageView);
final Offset calendarPageViewTopLeft = tester.getTopLeft(calendarPageView);
final Offset subHeaderTextBottomLeft = tester.getBottomLeft(subHeaderText);
expect(calendarPageViewTopLeft.dx, dividerTopRight.dx);
if (!kIsWeb || isSkiaWeb) { // https://github.com/flutter/flutter/issues/99933
expect(calendarPageViewTopLeft.dy, subHeaderTextBottomLeft.dy + 16.0);
}
// Test month navigation icons position.
final Finder previousMonthButton = find.widgetWithIcon(IconButton, Icons.chevron_left);
final Finder nextMonthButton = find.widgetWithIcon(IconButton, Icons.chevron_right);
final Offset previousMonthButtonTopRight = tester.getTopRight(previousMonthButton);
final Offset nextMonthButtonTopRight = tester.getTopRight(nextMonthButton);
final Offset dialogTopRight = tester.getTopRight(find.byType(AnimatedContainer));
expect(nextMonthButtonTopRight.dx, dialogTopRight.dx - 4.0);
expect(nextMonthButtonTopRight.dy, dialogTopRight.dy + 2.0);
expect(previousMonthButtonTopRight.dx, nextMonthButtonTopRight.dx - 48.0);
// Test action buttons position.
final Offset dialogBottomRight = tester.getBottomRight(find.byType(AnimatedContainer));
final Offset okButtonTopRight = tester.getTopRight(find.widgetWithText(TextButton, 'OK'));
final Offset cancelButtonTopRight = tester.getTopRight(find.widgetWithText(TextButton, 'Cancel'));
final Offset calendarPageViewBottomRight = tester.getBottomRight(calendarPageView);
expect(okButtonTopRight.dx, dialogBottomRight.dx - 8);
expect(okButtonTopRight.dy, calendarPageViewBottomRight.dy + 2);
final Offset okButtonTopLeft = tester.getTopLeft(find.widgetWithText(TextButton, 'OK'));
expect(cancelButtonTopRight.dx, okButtonTopLeft.dx - 8);
});
testWidgets('Default Calendar mode layout (Portrait)', (WidgetTester tester) async {
final Finder helpText = find.text('Select date');
final Finder headerText = find.text('Fri, Jan 15');
final Finder subHeaderText = find.text('January 2016');
final Finder cancelButtonText = find.text('Cancel');
final Finder okButtonText = find.text('OK');
tester.view.physicalSize = narrowWindowSize;
addTearDown(tester.view.reset);
await tester.pumpWidget(MaterialApp(
theme: ThemeData(useMaterial3: true),
home: Material(
child: DatePickerDialog(
initialDate: initialDate,
firstDate: firstDate,
lastDate: lastDate,
),
),
));
expect(helpText, findsOneWidget);
expect(headerText, findsOneWidget);
expect(subHeaderText, findsOneWidget);
expect(cancelButtonText, findsOneWidget);
expect(okButtonText, findsOneWidget);
// Test help text position.
final Offset dialogTopLeft = tester.getTopLeft(find.byType(AnimatedContainer));
final Offset helpTextTopLeft = tester.getTopLeft(helpText);
expect(helpTextTopLeft.dx, dialogTopLeft.dx + 24.0);
expect(helpTextTopLeft.dy, dialogTopLeft.dy + 16.0);
// Test header text position
final Offset headerTextTextTopLeft = tester.getTopLeft(headerText);
final Offset helpTextBottomLeft = tester.getBottomLeft(helpText);
expect(headerTextTextTopLeft.dx, dialogTopLeft.dx + 24.0);
if (!kIsWeb || isSkiaWeb) { // https://github.com/flutter/flutter/issues/99933
expect(headerTextTextTopLeft.dy, helpTextBottomLeft.dy + 28.0);
}
// Test switch button position.
final Finder switchButtonM3 = find.widgetWithIcon(IconButton, Icons.edit_outlined);
final Offset switchButtonTopRight = tester.getTopRight(switchButtonM3);
final Offset dialogTopRight = tester.getTopRight(find.byType(AnimatedContainer));
expect(switchButtonTopRight.dx, dialogTopRight.dx - 12.0);
expect(switchButtonTopRight.dy, headerTextTextTopLeft.dy - 4.0);
// Test horizontal divider position.
final Finder divider = find.byType(Divider);
final Offset dividerTopLeft = tester.getTopLeft(divider);
final Offset headerTextBottomLeft = tester.getBottomLeft(headerText);
expect(dividerTopLeft.dx, dialogTopLeft.dx);
expect(dividerTopLeft.dy, headerTextBottomLeft.dy + 16.0);
// Test subHeaderText position.
final Offset subHeaderTextTopLeft = tester.getTopLeft(subHeaderText);
final Offset dividerBottomLeft = tester.getBottomLeft(divider);
expect(subHeaderTextTopLeft.dx, dialogTopLeft.dx + 24.0);
if (!kIsWeb || isSkiaWeb) { // https://github.com/flutter/flutter/issues/99933
expect(subHeaderTextTopLeft.dy, dividerBottomLeft.dy + 16.0);
}
// Test sub header icon position.
final Finder subHeaderIcon = find.byIcon(Icons.arrow_drop_down);
final Offset subHeaderIconTopLeft = tester.getTopLeft(subHeaderIcon);
final Offset subHeaderTextTopRight = tester.getTopRight(subHeaderText);
expect(subHeaderIconTopLeft.dx, subHeaderTextTopRight.dx);
expect(subHeaderIconTopLeft.dy, dividerBottomLeft.dy + 14.0);
// Test month navigation icons position.
final Finder previousMonthButton = find.widgetWithIcon(IconButton, Icons.chevron_left);
final Finder nextMonthButton = find.widgetWithIcon(IconButton, Icons.chevron_right);
final Offset previousMonthButtonTopRight = tester.getTopRight(previousMonthButton);
final Offset nextMonthButtonTopRight = tester.getTopRight(nextMonthButton);
expect(nextMonthButtonTopRight.dx, dialogTopRight.dx - 4.0);
expect(nextMonthButtonTopRight.dy, dividerBottomLeft.dy + 2.0);
expect(previousMonthButtonTopRight.dx, nextMonthButtonTopRight.dx - 48.0);
// Test calendar page view position.
final Finder calendarPageView = find.byType(PageView);
final Offset calendarPageViewTopLeft = tester.getTopLeft(calendarPageView);
final Offset subHeaderTextBottomLeft = tester.getBottomLeft(subHeaderText);
expect(calendarPageViewTopLeft.dx, dialogTopLeft.dx);
if (!kIsWeb || isSkiaWeb) { // https://github.com/flutter/flutter/issues/99933
expect(calendarPageViewTopLeft.dy, subHeaderTextBottomLeft.dy + 16.0);
}
// Test action buttons position.
final Offset dialogBottomRight = tester.getBottomRight(find.byType(AnimatedContainer));
final Offset okButtonTopRight = tester.getTopRight(find.widgetWithText(TextButton, 'OK'));
final Offset cancelButtonTopRight = tester.getTopRight(find.widgetWithText(TextButton, 'Cancel'));
final Offset calendarPageViewBottomRight = tester.getBottomRight(calendarPageView);
final Offset okButtonTopLeft = tester.getTopLeft(find.widgetWithText(TextButton, 'OK'));
expect(okButtonTopRight.dx, dialogBottomRight.dx - 8);
expect(okButtonTopRight.dy, calendarPageViewBottomRight.dy + 2);
expect(cancelButtonTopRight.dx, okButtonTopLeft.dx - 8);
});
testWidgets('Can select a day', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('12'));
await tester.tap(find.text('OK'));
expect(await date, equals(DateTime(2016, DateTime.january, 12)));
});
});
testWidgets('Can select a month', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(previousMonthIcon);
await tester.pumpAndSettle(const Duration(seconds: 1));
await tester.tap(find.text('25'));
await tester.tap(find.text('OK'));
expect(await date, DateTime(2015, DateTime.december, 25));
});
});
testWidgets('Can select a year', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('January 2016')); // Switch to year mode.
await tester.pump();
await tester.tap(find.text('2018'));
await tester.pump();
expect(find.text('January 2018'), findsOneWidget);
});
});
testWidgets('Can select a day with no initial date', (WidgetTester tester) async {
initialDate = null;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('12'));
await tester.tap(find.text('OK'));
expect(await date, equals(DateTime(2016, DateTime.january, 12)));
});
});
testWidgets('Can select a month with no initial date', (WidgetTester tester) async {
initialDate = null;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(previousMonthIcon);
await tester.pumpAndSettle(const Duration(seconds: 1));
await tester.tap(find.text('25'));
await tester.tap(find.text('OK'));
expect(await date, DateTime(2015, DateTime.december, 25));
});
});
testWidgets('Can select a year with no initial date', (WidgetTester tester) async {
initialDate = null;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('January 2016')); // Switch to year mode.
await tester.pump();
await tester.tap(find.text('2018'));
await tester.pump();
expect(find.text('January 2018'), findsOneWidget);
});
});
testWidgets('Selecting date does not change displayed month', (WidgetTester tester) async {
initialDate = DateTime(2020, DateTime.march, 15);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(nextMonthIcon);
await tester.pumpAndSettle(const Duration(seconds: 1));
expect(find.text('April 2020'), findsOneWidget);
await tester.tap(find.text('25'));
await tester.pumpAndSettle();
expect(find.text('April 2020'), findsOneWidget);
// There isn't a 31 in April so there shouldn't be one if it is showing April
expect(find.text('31'), findsNothing);
});
});
testWidgets('Changing year does change selected date', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('January 2016'));
await tester.pump();
await tester.tap(find.text('2018'));
await tester.pump();
await tester.tap(find.text('OK'));
expect(await date, equals(DateTime(2018, DateTime.january, 15)));
});
});
testWidgets('Changing year does not change the month', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(nextMonthIcon);
await tester.pumpAndSettle();
await tester.tap(nextMonthIcon);
await tester.pumpAndSettle();
await tester.tap(find.text('March 2016'));
await tester.pumpAndSettle();
await tester.tap(find.text('2018'));
await tester.pumpAndSettle();
expect(find.text('March 2018'), findsOneWidget);
});
});
testWidgets('Can select a year and then a day', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('January 2016')); // Switch to year mode.
await tester.pump();
await tester.tap(find.text('2017'));
await tester.pump();
await tester.tap(find.text('19'));
await tester.tap(find.text('OK'));
expect(await date, DateTime(2017, DateTime.january, 19));
});
});
testWidgets('Current year is visible in year picker', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('January 2016')); // Switch to year mode.
await tester.pump();
expect(find.text('2016'), findsOneWidget);
});
});
testWidgets('Cannot select a day outside bounds', (WidgetTester tester) async {
initialDate = DateTime(2017, DateTime.january, 15);
firstDate = initialDate!;
lastDate = initialDate!;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Earlier than firstDate. Should be ignored.
await tester.tap(find.text('10'));
// Later than lastDate. Should be ignored.
await tester.tap(find.text('20'));
await tester.tap(find.text('OK'));
// We should still be on the initial date.
expect(await date, initialDate);
});
});
testWidgets('Cannot select a month past last date', (WidgetTester tester) async {
initialDate = DateTime(2017, DateTime.january, 15);
firstDate = initialDate!;
lastDate = DateTime(2017, DateTime.february, 20);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(nextMonthIcon);
await tester.pumpAndSettle(const Duration(seconds: 1));
// Shouldn't be possible to keep going into March.
expect(nextMonthIcon, findsNothing);
});
});
testWidgets('Cannot select a month before first date', (WidgetTester tester) async {
initialDate = DateTime(2017, DateTime.january, 15);
firstDate = DateTime(2016, DateTime.december, 10);
lastDate = initialDate!;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(previousMonthIcon);
await tester.pumpAndSettle(const Duration(seconds: 1));
// Shouldn't be possible to keep going into November.
expect(previousMonthIcon, findsNothing);
});
});
testWidgets('Cannot select disabled year', (WidgetTester tester) async {
initialDate = DateTime(2018, DateTime.july, 4);
firstDate = DateTime(2018, DateTime.june, 9);
lastDate = DateTime(2018, DateTime.december, 15);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('July 2018')); // Switch to year mode.
await tester.pumpAndSettle();
await tester.tap(find.text('2016')); // Disabled, doesn't change the year.
await tester.pumpAndSettle();
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
expect(await date, DateTime(2018, DateTime.july, 4));
});
});
testWidgets('Selecting firstDate year respects firstDate', (WidgetTester tester) async {
initialDate = DateTime(2018, DateTime.may, 4);
firstDate = DateTime(2016, DateTime.june, 9);
lastDate = DateTime(2019, DateTime.january, 15);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('May 2018'));
await tester.pumpAndSettle();
await tester.tap(find.text('2016'));
await tester.pumpAndSettle();
// Month should be clamped to June as the range starts at June 2016
expect(find.text('June 2016'), findsOneWidget);
});
});
testWidgets('Selecting lastDate year respects lastDate', (WidgetTester tester) async {
initialDate = DateTime(2018, DateTime.may, 4);
firstDate = DateTime(2016, DateTime.june, 9);
lastDate = DateTime(2019, DateTime.january, 15);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('May 2018'));
await tester.pumpAndSettle();
await tester.tap(find.text('2019'));
await tester.pumpAndSettle();
// Month should be clamped to January as the range ends at January 2019
expect(find.text('January 2019'), findsOneWidget);
});
});
testWidgets('Only predicate days are selectable', (WidgetTester tester) async {
initialDate = DateTime(2017, DateTime.january, 16);
firstDate = DateTime(2017, DateTime.january, 10);
lastDate = DateTime(2017, DateTime.january, 20);
selectableDayPredicate = (DateTime day) => day.day.isEven;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('13')); // Odd, doesn't work.
await tester.tap(find.text('10')); // Even, works.
await tester.tap(find.text('17')); // Odd, doesn't work.
await tester.tap(find.text('OK'));
expect(await date, DateTime(2017, DateTime.january, 10));
});
});
testWidgets('Can select initial calendar picker mode', (WidgetTester tester) async {
initialDate = DateTime(2014, DateTime.january, 15);
initialCalendarMode = DatePickerMode.year;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.pump();
// 2018 wouldn't be available if the year picker wasn't showing.
// The initial current year is 2014.
await tester.tap(find.text('2018'));
await tester.pump();
expect(find.text('January 2018'), findsOneWidget);
});
});
testWidgets('currentDate is highlighted', (WidgetTester tester) async {
today = DateTime(2016, 1, 2);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.pump();
const Color todayColor = Color(0xff2196f3); // default primary color
expect(
Material.of(tester.element(find.text('2'))),
// The current day should be painted with a circle outline
paints..circle(color: todayColor, style: PaintingStyle.stroke, strokeWidth: 1.0),
);
});
});
testWidgets('Date picker dayOverlayColor resolves pressed state', (WidgetTester tester) async {
today = DateTime(2023, 5, 4);
final ThemeData theme = ThemeData();
final bool material3 = theme.useMaterial3;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.pump();
// Hovered.
final Offset center = tester.getCenter(find.text('30'));
final TestGesture gesture = await tester.createGesture(
kind: PointerDeviceKind.mouse,
);
await gesture.addPointer();
await gesture.moveTo(center);
await tester.pumpAndSettle();
expect(
Material.of(tester.element(find.text('30'))),
paints..circle(color: material3 ? theme.colorScheme.onSurfaceVariant.withOpacity(0.08) : theme.colorScheme.onSurfaceVariant.withOpacity(0.08)),
);
// Highlighted (pressed).
await gesture.down(center);
await tester.pumpAndSettle();
expect(
Material.of(tester.element(find.text('30'))),
paints..circle()..circle(color: material3 ? theme.colorScheme.onSurfaceVariant.withOpacity(0.1) : theme.colorScheme.onSurfaceVariant.withOpacity(0.12))
);
await gesture.up();
await tester.pumpAndSettle();
}, theme: theme);
});
testWidgets('Selecting date does not switch picker to year selection', (WidgetTester tester) async {
initialDate = DateTime(2020, DateTime.may, 10);
initialCalendarMode = DatePickerMode.year;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.pump();
await tester.tap(find.text('2017'));
await tester.pump();
expect(find.text('May 2017'), findsOneWidget);
await tester.tap(find.text('10'));
await tester.pump();
expect(find.text('May 2017'), findsOneWidget);
expect(find.text('2017'), findsNothing);
});
});
});
group('Input mode', () {
setUp(() {
firstDate = DateTime(2015);
lastDate = DateTime(2017, DateTime.december, 31);
initialDate = DateTime(2016, DateTime.january, 15);
initialEntryMode = DatePickerEntryMode.input;
});
testWidgets('Default InputDecoration', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final InputDecoration decoration = tester.widget<TextField>(
find.byType(TextField)).decoration!;
expect(decoration.border, const OutlineInputBorder());
expect(decoration.filled, false);
expect(decoration.hintText, 'mm/dd/yyyy');
expect(decoration.labelText, 'Enter Date');
expect(decoration.errorText, null);
}, useMaterial3: true);
});
testWidgets('Initial entry mode is used', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.byType(TextField), findsOneWidget);
});
});
testWidgets('Hint, label, and help text is used', (WidgetTester tester) async {
cancelText = 'nope';
confirmText = 'yep';
fieldHintText = 'hint';
fieldLabelText = 'label';
helpText = 'help';
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.text(cancelText!), findsOneWidget);
expect(find.text(confirmText!), findsOneWidget);
expect(find.text(fieldHintText!), findsOneWidget);
expect(find.text(fieldLabelText!), findsOneWidget);
expect(find.text(helpText!), findsOneWidget);
});
});
testWidgets('KeyboardType is used', (WidgetTester tester) async {
keyboardType = TextInputType.text;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final TextField field = textField(tester);
expect(field.keyboardType, TextInputType.text);
});
});
testWidgets('Initial date is the default', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('OK'));
expect(await date, DateTime(2016, DateTime.january, 15));
});
});
testWidgets('Can toggle to calendar entry mode', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.byType(TextField), findsOneWidget);
await tester.tap(find.byIcon(Icons.calendar_today));
await tester.pumpAndSettle();
expect(find.byType(TextField), findsNothing);
});
});
testWidgets('Toggle to calendar mode keeps selected date', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final TextField field = textField(tester);
field.controller!.clear();
await tester.enterText(find.byType(TextField), '12/25/2016');
await tester.tap(find.byIcon(Icons.calendar_today));
await tester.pumpAndSettle();
await tester.tap(find.text('OK'));
expect(await date, DateTime(2016, DateTime.december, 25));
});
});
testWidgets('Entered text returns date', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final TextField field = textField(tester);
field.controller!.clear();
await tester.enterText(find.byType(TextField), '12/25/2016');
await tester.tap(find.text('OK'));
expect(await date, DateTime(2016, DateTime.december, 25));
});
});
testWidgets('Too short entered text shows error', (WidgetTester tester) async {
errorFormatText = 'oops';
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final TextField field = textField(tester);
field.controller!.clear();
await tester.pumpAndSettle();
await tester.enterText(find.byType(TextField), '1225');
expect(find.text(errorFormatText!), findsNothing);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
expect(find.text(errorFormatText!), findsOneWidget);
});
});
testWidgets('Bad format entered text shows error', (WidgetTester tester) async {
errorFormatText = 'oops';
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final TextField field = textField(tester);
field.controller!.clear();
await tester.pumpAndSettle();
await tester.enterText(find.byType(TextField), '20 days, 3 months, 2003');
expect(find.text('20 days, 3 months, 2003'), findsOneWidget);
expect(find.text(errorFormatText!), findsNothing);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
expect(find.text(errorFormatText!), findsOneWidget);
});
});
testWidgets('Invalid entered text shows error', (WidgetTester tester) async {
errorInvalidText = 'oops';
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final TextField field = textField(tester);
field.controller!.clear();
await tester.pumpAndSettle();
await tester.enterText(find.byType(TextField), '08/10/1969');
expect(find.text(errorInvalidText!), findsNothing);
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
expect(find.text(errorInvalidText!), findsOneWidget);
});
});
testWidgets('Invalid entered text shows error on autovalidate', (WidgetTester tester) async {
// This is a regression test for https://github.com/flutter/flutter/issues/126397.
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final TextField field = textField(tester);
field.controller!.clear();
// Enter some text to trigger autovalidate.
await tester.enterText(find.byType(TextField), 'xyz');
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
// Invalid format validation error should be shown.
expect(find.text('Invalid format.'), findsOneWidget);
// Clear the text.
field.controller!.clear();
// Enter an invalid date that is too long while autovalidate is still on.
await tester.enterText(find.byType(TextField), '10/05/2023666777889');
await tester.pump();
// Invalid format validation error should be shown.
expect(find.text('Invalid format.'), findsOneWidget);
// Should not throw an exception.
expect(tester.takeException(), null);
});
});
// This is a regression test for https://github.com/flutter/flutter/issues/131989.
testWidgets('Dialog contents do not overflow when resized during orientation change',
(WidgetTester tester) async {
addTearDown(tester.view.reset);
// Initial window size is wide for landscape mode.
tester.view.physicalSize = wideWindowSize;
tester.view.devicePixelRatio = 1.0;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Change window size to narrow for portrait mode.
tester.view.physicalSize = narrowWindowSize;
await tester.pump();
expect(tester.takeException(), null);
});
});
// This is a regression test for https://github.com/flutter/flutter/issues/139120.
testWidgets('Dialog contents are visible - textScaler 0.88, 1.0, 2.0',
(WidgetTester tester) async {
addTearDown(tester.view.reset);
tester.view.physicalSize = const Size(400, 800);
tester.view.devicePixelRatio = 1.0;
final List<double> scales = <double>[0.88, 1.0, 2.0];
for (final double scale in scales) {
await tester.pumpWidget(
MaterialApp(
home: MediaQuery(
data: MediaQueryData(textScaler: TextScaler.linear(scale)),
child: Material(
child: DatePickerDialog(
firstDate: DateTime(2001),
lastDate: DateTime(2031, DateTime.december, 31),
initialDate: DateTime(2016, DateTime.january, 15),
initialEntryMode: DatePickerEntryMode.input,
),
),
),
),
);
await tester.pumpAndSettle();
await expectLater(find.byType(Dialog), matchesGoldenFile('date_picker.dialog.contents.visible.$scale.png'));
}
});
});
group('Semantics', () {
testWidgets('calendar mode', (WidgetTester tester) async {
final SemanticsHandle semantics = tester.ensureSemantics();
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Header
expect(tester.getSemantics(find.text('SELECT DATE')), matchesSemantics(
label: 'SELECT DATE\nFri, Jan 15',
));
expect(tester.getSemantics(find.text('3')), matchesSemantics(
label: '3, Sunday, January 3, 2016, Today',
isButton: true,
hasTapAction: true,
isFocusable: true,
));
// Input mode toggle button
expect(tester.getSemantics(switchToInputIcon), matchesSemantics(
tooltip: 'Switch to input',
isButton: true,
hasTapAction: true,
isEnabled: true,
hasEnabledState: true,
isFocusable: true,
));
// The semantics of the CalendarDatePicker are tested in its tests.
// Ok/Cancel buttons
expect(tester.getSemantics(find.text('OK')), matchesSemantics(
label: 'OK',
isButton: true,
hasTapAction: true,
isEnabled: true,
hasEnabledState: true,
isFocusable: true,
));
expect(tester.getSemantics(find.text('CANCEL')), matchesSemantics(
label: 'CANCEL',
isButton: true,
hasTapAction: true,
isEnabled: true,
hasEnabledState: true,
isFocusable: true,
));
});
semantics.dispose();
});
testWidgets('input mode', (WidgetTester tester) async {
// Fill the clipboard so that the Paste option is available in the text
// selection menu.
final MockClipboard mockClipboard = MockClipboard();
tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(SystemChannels.platform, mockClipboard.handleMethodCall);
await Clipboard.setData(const ClipboardData(text: 'Clipboard data'));
addTearDown(() => tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(SystemChannels.platform, null));
final SemanticsHandle semantics = tester.ensureSemantics();
initialEntryMode = DatePickerEntryMode.input;
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Header
expect(tester.getSemantics(find.text('SELECT DATE')), matchesSemantics(
label: 'SELECT DATE\nFri, Jan 15',
));
// Input mode toggle button
expect(tester.getSemantics(switchToCalendarIcon), matchesSemantics(
tooltip: 'Switch to calendar',
isButton: true,
hasTapAction: true,
isEnabled: true,
hasEnabledState: true,
isFocusable: true,
));
expect(tester.getSemantics(find.byType(EditableText)), matchesSemantics(
label: 'Enter Date',
isEnabled: true,
hasEnabledState: true,
isTextField: true,
isFocused: true,
value: '01/15/2016',
hasTapAction: true,
hasSetTextAction: true,
hasSetSelectionAction: true,
hasCopyAction: true,
hasCutAction: true,
hasPasteAction: true,
hasMoveCursorBackwardByCharacterAction: true,
hasMoveCursorBackwardByWordAction: true,
));
// Ok/Cancel buttons
expect(tester.getSemantics(find.text('OK')), matchesSemantics(
label: 'OK',
isButton: true,
hasTapAction: true,
isEnabled: true,
hasEnabledState: true,
isFocusable: true,
));
expect(tester.getSemantics(find.text('CANCEL')), matchesSemantics(
label: 'CANCEL',
isButton: true,
hasTapAction: true,
isEnabled: true,
hasEnabledState: true,
isFocusable: true,
));
});
semantics.dispose();
});
});
group('Keyboard navigation', () {
testWidgets('Can toggle to calendar entry mode', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.byType(TextField), findsNothing);
// Navigate to the entry toggle button and activate it
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Should be in the input mode
expect(find.byType(TextField), findsOneWidget);
});
});
testWidgets('Can toggle to year mode', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.text('2016'), findsNothing);
// Navigate to the year selector and activate it
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// The years should be visible
expect(find.text('2016'), findsOneWidget);
});
});
testWidgets('Can navigate next/previous months', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
expect(find.text('January 2016'), findsOneWidget);
// Navigate to the previous month button and activate it twice
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Should be showing Nov 2015
expect(find.text('November 2015'), findsOneWidget);
// Navigate to the next month button and activate it four times
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Should be on Mar 2016
expect(find.text('March 2016'), findsOneWidget);
});
});
testWidgets('Can navigate date grid with arrow keys', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Navigate to the grid
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
// Navigate from Jan 15 to Jan 18 with arrow keys
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowDown);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowDown);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
await tester.pumpAndSettle();
// Activate it
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Navigate out of the grid and to the OK button
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
// Activate OK
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Should have selected Jan 18
expect(await date, DateTime(2016, DateTime.january, 18));
});
});
testWidgets('Navigating with arrow keys scrolls months', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Navigate to the grid
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.pumpAndSettle();
// Navigate from Jan 15 to Dec 31 with arrow keys
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
await tester.pumpAndSettle();
// Should have scrolled to Dec 2015
expect(find.text('December 2015'), findsOneWidget);
// Navigate from Dec 31 to Nov 26 with arrow keys
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
await tester.pumpAndSettle();
// Should have scrolled to Nov 2015
expect(find.text('November 2015'), findsOneWidget);
// Activate it
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Navigate out of the grid and to the OK button
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.pumpAndSettle();
// Activate OK
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Should have selected Jan 18
expect(await date, DateTime(2015, DateTime.november, 26));
});
});
testWidgets('RTL text direction reverses the horizontal arrow key navigation', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
// Navigate to the grid
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.pumpAndSettle();
// Navigate from Jan 15 to 19 with arrow keys
await tester.sendKeyEvent(LogicalKeyboardKey.arrowRight);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowRight);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowRight);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowRight);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowDown);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
await tester.pumpAndSettle();
// Activate it
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Navigate out of the grid and to the OK button
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.sendKeyEvent(LogicalKeyboardKey.tab);
await tester.pumpAndSettle();
// Activate OK
await tester.sendKeyEvent(LogicalKeyboardKey.space);
await tester.pumpAndSettle();
// Should have selected Jan 18
expect(await date, DateTime(2016, DateTime.january, 19));
}, textDirection: TextDirection.rtl);
});
});
group('Screen configurations', () {
// Test various combinations of screen sizes, orientations and text scales
// to ensure the layout doesn't overflow and cause an exception to be thrown.
// Regression tests for https://github.com/flutter/flutter/issues/21383
// Regression tests for https://github.com/flutter/flutter/issues/19744
// Regression tests for https://github.com/flutter/flutter/issues/17745
// Common screen size roughly based on a Pixel 1
const Size kCommonScreenSizePortrait = Size(1070, 1770);
const Size kCommonScreenSizeLandscape = Size(1770, 1070);
// Small screen size based on a LG K130
const Size kSmallScreenSizePortrait = Size(320, 521);
const Size kSmallScreenSizeLandscape = Size(521, 320);
Future<void> showPicker(WidgetTester tester, Size size, [double textScaleFactor = 1.0]) async {
tester.view.physicalSize = size;
tester.view.devicePixelRatio = 1.0;
addTearDown(tester.view.reset);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.text('OK'));
});
await tester.pumpAndSettle();
}
testWidgets('common screen size - portrait', (WidgetTester tester) async {
await showPicker(tester, kCommonScreenSizePortrait);
expect(tester.takeException(), isNull);
});
testWidgets('common screen size - landscape', (WidgetTester tester) async {
await showPicker(tester, kCommonScreenSizeLandscape);
expect(tester.takeException(), isNull);
});
testWidgets('common screen size - portrait - textScale 1.3', (WidgetTester tester) async {
await showPicker(tester, kCommonScreenSizePortrait, 1.3);
expect(tester.takeException(), isNull);
});
testWidgets('common screen size - landscape - textScale 1.3', (WidgetTester tester) async {
await showPicker(tester, kCommonScreenSizeLandscape, 1.3);
expect(tester.takeException(), isNull);
});
testWidgets('small screen size - portrait', (WidgetTester tester) async {
await showPicker(tester, kSmallScreenSizePortrait);
expect(tester.takeException(), isNull);
});
testWidgets('small screen size - landscape', (WidgetTester tester) async {
await showPicker(tester, kSmallScreenSizeLandscape);
expect(tester.takeException(), isNull);
});
testWidgets('small screen size - portrait -textScale 1.3', (WidgetTester tester) async {
await showPicker(tester, kSmallScreenSizePortrait, 1.3);
expect(tester.takeException(), isNull);
});
testWidgets('small screen size - landscape - textScale 1.3', (WidgetTester tester) async {
await showPicker(tester, kSmallScreenSizeLandscape, 1.3);
expect(tester.takeException(), isNull);
});
});
group('showDatePicker avoids overlapping display features', () {
testWidgets('positioning with anchorPoint', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
builder: (BuildContext context, Widget? child) {
return MediaQuery(
// Display has a vertical hinge down the middle
data: const MediaQueryData(
size: Size(800, 600),
displayFeatures: <DisplayFeature>[
DisplayFeature(
bounds: Rect.fromLTRB(390, 0, 410, 600),
type: DisplayFeatureType.hinge,
state: DisplayFeatureState.unknown,
),
],
),
child: child!,
);
},
home: const Center(child: Text('Test')),
),
);
final BuildContext context = tester.element(find.text('Test'));
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
anchorPoint: const Offset(1000, 0),
);
await tester.pumpAndSettle();
// Should take the right side of the screen
expect(tester.getTopLeft(find.byType(DatePickerDialog)), const Offset(410.0, 0.0));
expect(tester.getBottomRight(find.byType(DatePickerDialog)), const Offset(800.0, 600.0));
});
testWidgets('positioning with Directionality', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
builder: (BuildContext context, Widget? child) {
return MediaQuery(
// Display has a vertical hinge down the middle
data: const MediaQueryData(
size: Size(800, 600),
displayFeatures: <DisplayFeature>[
DisplayFeature(
bounds: Rect.fromLTRB(390, 0, 410, 600),
type: DisplayFeatureType.hinge,
state: DisplayFeatureState.unknown,
),
],
),
child: Directionality(
textDirection: TextDirection.rtl,
child: child!,
),
);
},
home: const Center(child: Text('Test')),
),
);
final BuildContext context = tester.element(find.text('Test'));
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
);
await tester.pumpAndSettle();
// By default it should place the dialog on the right screen
expect(tester.getTopLeft(find.byType(DatePickerDialog)), const Offset(410.0, 0.0));
expect(tester.getBottomRight(find.byType(DatePickerDialog)), const Offset(800.0, 600.0));
});
testWidgets('positioning with defaults', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
builder: (BuildContext context, Widget? child) {
return MediaQuery(
// Display has a vertical hinge down the middle
data: const MediaQueryData(
size: Size(800, 600),
displayFeatures: <DisplayFeature>[
DisplayFeature(
bounds: Rect.fromLTRB(390, 0, 410, 600),
type: DisplayFeatureType.hinge,
state: DisplayFeatureState.unknown,
),
],
),
child: child!,
);
},
home: const Center(child: Text('Test')),
),
);
final BuildContext context = tester.element(find.text('Test'));
showDatePicker(
context: context,
initialDate: DateTime.now(),
firstDate: DateTime(2018),
lastDate: DateTime(2030),
);
await tester.pumpAndSettle();
// By default it should place the dialog on the left screen
expect(tester.getTopLeft(find.byType(DatePickerDialog)), Offset.zero);
expect(tester.getBottomRight(find.byType(DatePickerDialog)), const Offset(390.0, 600.0));
});
});
testWidgets('DatePickerDialog is state restorable', (WidgetTester tester) async {
await tester.pumpWidget(
const MaterialApp(
restorationScopeId: 'app',
home: _RestorableDatePickerDialogTestWidget(),
),
);
// The date picker should be closed.
expect(find.byType(DatePickerDialog), findsNothing);
expect(find.text('25/7/2021'), findsOneWidget);
// Open the date picker.
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
expect(find.byType(DatePickerDialog), findsOneWidget);
final TestRestorationData restorationData = await tester.getRestorationData();
await tester.restartAndRestore();
// The date picker should be open after restoring.
expect(find.byType(DatePickerDialog), findsOneWidget);
// Tap on the barrier.
await tester.tapAt(const Offset(10.0, 10.0));
await tester.pumpAndSettle();
// The date picker should be closed, the text value updated to the
// newly selected date.
expect(find.byType(DatePickerDialog), findsNothing);
expect(find.text('25/7/2021'), findsOneWidget);
// The date picker should be open after restoring.
await tester.restoreFrom(restorationData);
expect(find.byType(DatePickerDialog), findsOneWidget);
// Select a different date.
await tester.tap(find.text('30'));
await tester.pumpAndSettle();
// Restart after the new selection. It should remain selected.
await tester.restartAndRestore();
// Close the date picker.
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
// The date picker should be closed, the text value updated to the
// newly selected date.
expect(find.byType(DatePickerDialog), findsNothing);
expect(find.text('30/7/2021'), findsOneWidget);
}, skip: isBrowser); // https://github.com/flutter/flutter/issues/33615
testWidgets('DatePickerDialog state restoration - DatePickerEntryMode', (WidgetTester tester) async {
await tester.pumpWidget(
const MaterialApp(
restorationScopeId: 'app',
home: _RestorableDatePickerDialogTestWidget(
datePickerEntryMode: DatePickerEntryMode.calendarOnly,
),
),
);
// The date picker should be closed.
expect(find.byType(DatePickerDialog), findsNothing);
expect(find.text('25/7/2021'), findsOneWidget);
// Open the date picker.
await tester.tap(find.text('X'));
await tester.pumpAndSettle();
expect(find.byType(DatePickerDialog), findsOneWidget);
// Only in calendar mode and cannot switch out.
expect(find.byType(TextField), findsNothing);
expect(find.byIcon(Icons.edit), findsNothing);
final TestRestorationData restorationData = await tester.getRestorationData();
await tester.restartAndRestore();
// The date picker should be open after restoring.
expect(find.byType(DatePickerDialog), findsOneWidget);
// Only in calendar mode and cannot switch out.
expect(find.byType(TextField), findsNothing);
expect(find.byIcon(Icons.edit), findsNothing);
// Tap on the barrier.
await tester.tapAt(const Offset(10.0, 10.0));
await tester.pumpAndSettle();
// The date picker should be closed, the text value should be the same
// as before.
expect(find.byType(DatePickerDialog), findsNothing);
expect(find.text('25/7/2021'), findsOneWidget);
// The date picker should be open after restoring.
await tester.restoreFrom(restorationData);
expect(find.byType(DatePickerDialog), findsOneWidget);
// Only in calendar mode and cannot switch out.
expect(find.byType(TextField), findsNothing);
expect(find.byIcon(Icons.edit), findsNothing);
}, skip: isBrowser); // https://github.com/flutter/flutter/issues/33615
testWidgets('Test Callback on Toggle of DatePicker Mode', (WidgetTester tester) async {
prepareDatePicker(tester, (Future<DateTime?> date) async {
await tester.tap(find.byIcon(Icons.edit));
expect(currentMode, DatePickerEntryMode.input);
await tester.pumpAndSettle();
expect(find.byType(TextField), findsOneWidget);
await tester.tap(find.byIcon(Icons.calendar_today));
expect(currentMode, DatePickerEntryMode.calendar);
await tester.pumpAndSettle();
expect(find.byType(TextField), findsNothing);
});
});
group('Landscape input-only date picker headers use headlineSmall', () {
// Regression test for https://github.com/flutter/flutter/issues/122056
// Common screen size roughly based on a Pixel 1
const Size kCommonScreenSizePortrait = Size(1070, 1770);
const Size kCommonScreenSizeLandscape = Size(1770, 1070);
Future<void> showPicker(WidgetTester tester, Size size) async {
addTearDown(tester.view.reset);
tester.view.physicalSize = size;
tester.view.devicePixelRatio = 1.0;
initialEntryMode = DatePickerEntryMode.input;
await prepareDatePicker(tester, (Future<DateTime?> date) async { }, useMaterial3: true);
}
testWidgets('portrait', (WidgetTester tester) async {
await showPicker(tester, kCommonScreenSizePortrait);
expect(tester.widget<Text>(find.text('Fri, Jan 15')).style?.fontSize, 32);
await tester.tap(find.text('Cancel'));
await tester.pumpAndSettle();
});
testWidgets('landscape', (WidgetTester tester) async {
await showPicker(tester, kCommonScreenSizeLandscape);
expect(tester.widget<Text>(find.text('Fri, Jan 15')).style?.fontSize, 24);
await tester.tap(find.text('Cancel'));
await tester.pumpAndSettle();
});
});
group('Material 2', () {
// These tests are only relevant for Material 2. Once Material 2
// support is deprecated and the APIs are removed, these tests
// can be deleted.
group('showDatePicker Dialog', () {
testWidgets('Default dialog size', (WidgetTester tester) async {
Future<void> showPicker(WidgetTester tester, Size size) async {
tester.view.physicalSize = size;
tester.view.devicePixelRatio = 1.0;
addTearDown(tester.view.reset);
await prepareDatePicker(tester, (Future<DateTime?> date) async {});
}
const Size wideWindowSize = Size(1920.0, 1080.0);
const Size narrowWindowSize = Size(1070.0, 1770.0);
const Size calendarLandscapeDialogSize = Size(496.0, 346.0);
const Size calendarPortraitDialogSizeM2 = Size(330.0, 518.0);
// Test landscape layout.
await showPicker(tester, wideWindowSize);
Size dialogContainerSize = tester.getSize(find.byType(AnimatedContainer));
expect(dialogContainerSize, calendarLandscapeDialogSize);
// Close the dialog.
await tester.tap(find.text('OK'));
await tester.pumpAndSettle();
// Test portrait layout.
await showPicker(tester, narrowWindowSize);
dialogContainerSize = tester.getSize(find.byType(AnimatedContainer));
expect(dialogContainerSize, calendarPortraitDialogSizeM2);
});
testWidgets('Default dialog properties', (WidgetTester tester) async {
final ThemeData theme = ThemeData(useMaterial3: false);
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final Material dialogMaterial = tester.widget<Material>(
find.descendant(of: find.byType(Dialog),
matching: find.byType(Material),
).first);
expect(dialogMaterial.color, theme.colorScheme.surface);
expect(dialogMaterial.shadowColor, theme.shadowColor);
expect(dialogMaterial.elevation, 24.0);
expect(
dialogMaterial.shape,
const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(4.0))),
);
expect(dialogMaterial.clipBehavior, Clip.antiAlias);
final Dialog dialog = tester.widget<Dialog>(find.byType(Dialog));
expect(dialog.insetPadding, const EdgeInsets.symmetric(horizontal: 16.0, vertical: 24.0));
}, useMaterial3: theme.useMaterial3);
});
});
group('Input mode', () {
setUp(() {
firstDate = DateTime(2015);
lastDate = DateTime(2017, DateTime.december, 31);
initialDate = DateTime(2016, DateTime.january, 15);
initialEntryMode = DatePickerEntryMode.input;
});
testWidgets('Default InputDecoration', (WidgetTester tester) async {
await prepareDatePicker(tester, (Future<DateTime?> date) async {
final InputDecoration decoration = tester.widget<TextField>(
find.byType(TextField)).decoration!;
expect(decoration.border, const UnderlineInputBorder());
expect(decoration.filled, false);
expect(decoration.hintText, 'mm/dd/yyyy');
expect(decoration.labelText, 'Enter Date');
expect(decoration.errorText, null);
});
});
});
});
}
class _RestorableDatePickerDialogTestWidget extends StatefulWidget {
const _RestorableDatePickerDialogTestWidget({
this.datePickerEntryMode = DatePickerEntryMode.calendar,
});
final DatePickerEntryMode datePickerEntryMode;
@override
_RestorableDatePickerDialogTestWidgetState createState() => _RestorableDatePickerDialogTestWidgetState();
}
class _RestorableDatePickerDialogTestWidgetState extends State<_RestorableDatePickerDialogTestWidget> with RestorationMixin {
@override
String? get restorationId => 'scaffold_state';
final RestorableDateTime _selectedDate = RestorableDateTime(DateTime(2021, 7, 25));
late final RestorableRouteFuture<DateTime?> _restorableDatePickerRouteFuture = RestorableRouteFuture<DateTime?>(
onComplete: _selectDate,
onPresent: (NavigatorState navigator, Object? arguments) {
return navigator.restorablePush(
_datePickerRoute,
arguments: <String, dynamic>{
'selectedDate': _selectedDate.value.millisecondsSinceEpoch,
'datePickerEntryMode': widget.datePickerEntryMode.index,
},
);
},
);
@override
void dispose() {
_selectedDate.dispose();
_restorableDatePickerRouteFuture.dispose();
super.dispose();
}
@override
void restoreState(RestorationBucket? oldBucket, bool initialRestore) {
registerForRestoration(_selectedDate, 'selected_date');
registerForRestoration(_restorableDatePickerRouteFuture, 'date_picker_route_future');
}
void _selectDate(DateTime? newSelectedDate) {
if (newSelectedDate != null) {
setState(() { _selectedDate.value = newSelectedDate; });
}
}
@pragma('vm:entry-point')
static Route<DateTime> _datePickerRoute(
BuildContext context,
Object? arguments,
) {
return DialogRoute<DateTime>(
context: context,
builder: (BuildContext context) {
final Map<dynamic, dynamic> args = arguments! as Map<dynamic, dynamic>;
return DatePickerDialog(
restorationId: 'date_picker_dialog',
initialEntryMode: DatePickerEntryMode.values[args['datePickerEntryMode'] as int],
initialDate: DateTime.fromMillisecondsSinceEpoch(args['selectedDate'] as int),
firstDate: DateTime(2021),
lastDate: DateTime(2022),
);
},
);
}
@override
Widget build(BuildContext context) {
final DateTime selectedDateTime = _selectedDate.value;
// Example: "25/7/1994"
final String selectedDateTimeString = '${selectedDateTime.day}/${selectedDateTime.month}/${selectedDateTime.year}';
return Scaffold(
body: Center(
child: Column(
children: <Widget>[
OutlinedButton(
onPressed: () {
_restorableDatePickerRouteFuture.present();
},
child: const Text('X'),
),
Text(selectedDateTimeString),
],
),
),
);
}
}
class _DatePickerObserver extends NavigatorObserver {
int datePickerCount = 0;
@override
void didPush(Route<dynamic> route, Route<dynamic>? previousRoute) {
if (route is DialogRoute) {
datePickerCount++;
}
super.didPush(route, previousRoute);
}
@override
void didPop(Route<dynamic> route, Route<dynamic>? previousRoute) {
if (route is DialogRoute) {
datePickerCount--;
}
super.didPop(route, previousRoute);
}
}