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Replace MaterialButton in the AnimatedBuilder sample (#1729)

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This commit is contained in:
Taha Tesser
2023-04-08 05:39:28 +03:00
committed by GitHub
parent 31a3d14618
commit 974aaf12b9
2 changed files with 68 additions and 5 deletions
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64
animations/test/basics/animated_builder_test.dart Normal file
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// Copyright 2023 The Flutter team. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:animations/src/basics/basics.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
Widget createAnimatedBuilderDemoScreen() => const MaterialApp(
home: AnimatedBuilderDemo(),
);
void main() {
group('AnimatedBuilder Tests', () {
testWidgets('AnimatedBuilder changes button color', (tester) async {
await tester.pumpWidget(createAnimatedBuilderDemoScreen());
// Get the initial color of the button.
ElevatedButton button = tester.widget(find.byType(ElevatedButton));
MaterialStateProperty<Color?>? initialColor =
button.style!.backgroundColor;
// Tap the button.
await tester.tap(find.byType(ElevatedButton));
await tester.pumpAndSettle();
// Get the updated color of the button.
button = tester.widget(find.byType(ElevatedButton));
MaterialStateProperty<Color?>? updatedColor =
button.style!.backgroundColor;
// Check if the color has changed.
expect(initialColor, isNot(updatedColor));
});
testWidgets('AnimatedBuilder animates button color', (tester) async {
await tester.pumpWidget(createAnimatedBuilderDemoScreen());
// Get the initial color of the button.
ElevatedButton button = tester.widget(find.byType(ElevatedButton));
MaterialStateProperty<Color?>? initialColor =
button.style!.backgroundColor;
// Tap the button to trigger the animation but don't wait for it to finish.
await tester.tap(find.byType(ElevatedButton));
await tester.pump();
await tester.pump(const Duration(milliseconds: 400));
// Check that the color has changed but not to the final color.
button = tester.widget(find.byType(ElevatedButton));
MaterialStateProperty<Color?>? changedColor =
button.style!.backgroundColor;
expect(initialColor, isNot(changedColor));
// Wait for the animation to finish.
await tester.pump(const Duration(milliseconds: 400));
// Check that the color has changed to the final color.
button = tester.widget(find.byType(ElevatedButton));
MaterialStateProperty<Color?>? finalColor = button.style!.backgroundColor;
expect(changedColor, isNot(finalColor));
});
});
}