51 lines
1.8 KiB
Dart
51 lines
1.8 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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// @dart = 2.8
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import 'dart:typed_data';
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import 'dart:ui' as ui show Image;
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter_test/flutter_test.dart';
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import '../image_data.dart';
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import '../painting/fake_codec.dart';
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import '../painting/fake_image_provider.dart';
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Future<void> main() async {
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final FakeCodec fakeCodec = await FakeCodec.fromData(Uint8List.fromList(kAnimatedGif));
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final FakeImageProvider fakeImageProvider = FakeImageProvider(fakeCodec);
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testWidgets('Obscured image does not animate', (WidgetTester tester) async {
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final GlobalKey imageKey = GlobalKey();
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await tester.pumpWidget(
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MaterialApp(
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home: Image(image: fakeImageProvider, excludeFromSemantics: true, key: imageKey),
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routes: <String, WidgetBuilder>{
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'/page': (BuildContext context) => Container(),
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},
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),
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);
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final RenderImage renderImage = tester.renderObject(find.byType(Image));
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final ui.Image image1 = renderImage.image;
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await tester.pump(const Duration(milliseconds: 100));
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final ui.Image image2 = renderImage.image;
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expect(image1, isNot(same(image2)));
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Navigator.pushNamed(imageKey.currentContext, '/page');
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await tester.pump(); // Starts the page animation.
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await tester.pump(const Duration(seconds: 1)); // Let the page animation complete.
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// The image is now obscured by another page, it should not be changing
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// frames.
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final ui.Image image3 = renderImage.image;
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await tester.pump(const Duration(milliseconds: 100));
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final ui.Image image4 = renderImage.image;
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expect(image3, same(image4));
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});
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}
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