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92 lines
2.8 KiB
92 lines
2.8 KiB
// Copyright 2020 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:animations/src/misc/hero_animation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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Widget createHeroAnimationDemoScreen() => MaterialApp(
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home: HeroAnimationDemo(),
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);
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void main() {
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group('Hero Animation Tests', () {
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testWidgets('Size of Container changes on Tap', (tester) async {
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await tester.pumpWidget(createHeroAnimationDemoScreen());
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// Get the initial Container.
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var initialContainer = tester.firstWidget(find.byType(Container));
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// Get the size of initial Container.
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var initialSize = tester.getSize(find.byWidget(initialContainer));
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// Tap on the Gesture Detector.
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await tester.tap(find.byType(GestureDetector));
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await tester.pumpAndSettle();
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// Get the final Container.
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var finalContainer = tester.firstWidget(find.byType(Container));
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// Get the size of final Container.
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var finalSize = tester.getSize(find.byWidget(finalContainer));
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// initialSize should be less than finalSize.
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expect(
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initialSize,
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lessThan(finalSize),
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);
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});
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testWidgets('Color of Container changes on Tap', (tester) async {
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await tester.pumpWidget(createHeroAnimationDemoScreen());
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// Get the initial Container.
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final initialContainer =
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tester.firstWidget(find.byType(Container)) as Container;
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// Initial color should be Color.grey[300].
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expect(
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(initialContainer.decoration as BoxDecoration).color,
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Colors.grey[300],
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);
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// Tap on the GestureDetector.
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await tester.tap(find.byType(GestureDetector));
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await tester.pumpAndSettle();
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// Get the final Container.
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final finalContainer =
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tester.firstWidget(find.byType(Container)) as Container;
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// Final color should not be same as initial color.
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expect(
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(finalContainer.decoration as BoxDecoration).color,
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isNot(
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equals((initialContainer.decoration as BoxDecoration).color),
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),
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);
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});
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testWidgets('Screen Changes on Tap', (tester) async {
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await tester.pumpWidget(createHeroAnimationDemoScreen());
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// Get the initial Screen.
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final initialScreen = tester.firstWidget(find.byType(HeroAnimationDemo));
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// Tap on the GestureDetector.
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await tester.tap(find.byType(GestureDetector));
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await tester.pumpAndSettle();
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// Get the screen after navigation.
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final finalScreen = tester.firstWidget(find.byType(HeroPage));
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// initialScreen should not be same as finalScreen.
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expect(
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initialScreen,
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isNot(equals(finalScreen)),
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);
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});
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});
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}
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