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The widget under test already contains a MaterialApp, so there's no need to wrap it again with one in the test. In fact, the additional MaterialApp could hide problems in the widget under test.
117 lines
4.5 KiB
Dart
117 lines
4.5 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/toggle_buttons/toggle_buttons.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('Single-select ToggleButtons', (WidgetTester tester) async {
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TextButton findButton(String text) {
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return tester.widget<TextButton>(find.widgetWithText(TextButton, text));
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}
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await tester.pumpWidget(
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const example.ToggleButtonsExampleApp(),
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);
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TextButton firstButton = findButton('Apple');
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TextButton secondButton = findButton('Banana');
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TextButton thirdButton = findButton('Orange');
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const Color selectedColor = Color(0xffef9a9a);
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const Color unselectedColor = Color(0x00fef7ff);
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/// First button is selected.
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expect(firstButton.style!.backgroundColor!.resolve(enabled), selectedColor);
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expect(secondButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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expect(thirdButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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/// Tap on second button.
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await tester.tap(find.widgetWithText(TextButton, 'Banana'));
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await tester.pumpAndSettle();
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firstButton = findButton('Apple');
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secondButton = findButton('Banana');
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thirdButton = findButton('Orange');
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/// Only second button is selected.
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expect(firstButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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expect(secondButton.style!.backgroundColor!.resolve(enabled), selectedColor);
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expect(thirdButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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});
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testWidgets('Multi-select ToggleButtons', (WidgetTester tester) async {
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TextButton findButton(String text) {
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return tester.widget<TextButton>(find.widgetWithText(TextButton, text));
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}
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await tester.pumpWidget(
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const example.ToggleButtonsExampleApp(),
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);
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TextButton firstButton = findButton('Tomatoes');
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TextButton secondButton = findButton('Potatoes');
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TextButton thirdButton = findButton('Carrots');
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const Color selectedColor = Color(0xffa5d6a7);
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const Color unselectedColor = Color(0x00fef7ff);
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/// Second button is selected.
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expect(firstButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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expect(secondButton.style!.backgroundColor!.resolve(enabled), selectedColor);
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expect(thirdButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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/// Tap on other two buttons.
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await tester.tap(find.widgetWithText(TextButton, 'Tomatoes'));
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await tester.tap(find.widgetWithText(TextButton, 'Carrots'));
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await tester.pumpAndSettle();
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firstButton = findButton('Tomatoes');
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secondButton = findButton('Potatoes');
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thirdButton = findButton('Carrots');
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/// All buttons are selected.
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expect(firstButton.style!.backgroundColor!.resolve(enabled), selectedColor);
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expect(secondButton.style!.backgroundColor!.resolve(enabled), selectedColor);
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expect(thirdButton.style!.backgroundColor!.resolve(enabled), selectedColor);
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});
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testWidgets('Icon-only ToggleButtons', (WidgetTester tester) async {
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TextButton findButton(IconData iconData) {
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return tester.widget<TextButton>(find.widgetWithIcon(TextButton, iconData));
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}
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await tester.pumpWidget(
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const example.ToggleButtonsExampleApp(),
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);
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TextButton firstButton = findButton(Icons.sunny);
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TextButton secondButton = findButton(Icons.cloud);
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TextButton thirdButton = findButton(Icons.ac_unit);
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const Color selectedColor = Color(0xff90caf9);
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const Color unselectedColor = Color(0x00fef7ff);
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/// Third button is selected.
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expect(firstButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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expect(secondButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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expect(thirdButton.style!.backgroundColor!.resolve(enabled), selectedColor);
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/// Tap on the first button.
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await tester.tap(find.widgetWithIcon(TextButton, Icons.sunny));
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await tester.pumpAndSettle();
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firstButton = findButton(Icons.sunny);
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secondButton = findButton(Icons.cloud);
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thirdButton = findButton(Icons.ac_unit);
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/// First button os selected.
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expect(firstButton.style!.backgroundColor!.resolve(enabled), selectedColor);
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expect(secondButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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expect(thirdButton.style!.backgroundColor!.resolve(enabled), unselectedColor);
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});
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}
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Set<MaterialState> enabled = <MaterialState>{ };
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