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56 lines
2.0 KiB
Dart
56 lines
2.0 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_api_samples/material/dropdown_menu/dropdown_menu.0.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('DropdownMenu', (WidgetTester tester) async {
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await tester.pumpWidget(
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const example.DropdownMenuExample(),
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);
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expect(find.text('You selected a Blue Smile'), findsNothing);
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final Finder colorMenu = find.byType(DropdownMenu<example.ColorLabel>);
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final Finder iconMenu = find.byType(DropdownMenu<example.IconLabel>);
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expect(colorMenu, findsOneWidget);
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expect(iconMenu, findsOneWidget);
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Finder findMenuItem(String label) {
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return find.widgetWithText(MenuItemButton, label).last;
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}
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await tester.tap(colorMenu);
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await tester.pumpAndSettle();
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expect(findMenuItem('Blue'), findsOneWidget);
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expect(findMenuItem('Pink'), findsOneWidget);
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expect(findMenuItem('Green'), findsOneWidget);
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expect(findMenuItem('Orange'), findsOneWidget);
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expect(findMenuItem('Grey'), findsOneWidget);
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await tester.tap(findMenuItem('Blue'));
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// The DropdownMenu's onSelected callback is delayed
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// with SchedulerBinding.instance.addPostFrameCallback
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// to give the focus a chance to return to where it was
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// before the menu appeared. The pumpAndSettle()
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// give the callback a chance to run.
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await tester.pumpAndSettle();
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await tester.tap(iconMenu);
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await tester.pumpAndSettle();
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expect(findMenuItem('Smile'), findsOneWidget);
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expect(findMenuItem('Cloud'), findsOneWidget);
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expect(findMenuItem('Brush'), findsOneWidget);
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expect(findMenuItem('Heart'), findsOneWidget);
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await tester.tap(findMenuItem('Smile'));
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await tester.pumpAndSettle();
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expect(find.text('You selected a Blue Smile'), findsOneWidget);
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});
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}
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