// Copyright 2016 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'dart:async'; import 'dart:typed_data'; import 'dart:ui' as ui show Image; import 'package:flutter/foundation.dart'; import 'package:flutter/rendering.dart'; import 'package:flutter/services.dart'; import 'package:flutter/widgets.dart'; import 'package:flutter_test/flutter_test.dart'; import '../services/image_data.dart'; void main() { testWidgets('Verify Image resets its RenderImage when changing providers', (WidgetTester tester) async { final GlobalKey key = new GlobalKey(); final TestImageProvider imageProvider1 = new TestImageProvider(); await tester.pumpWidget( new Container( key: key, child: new Image( image: imageProvider1 ) ), null, EnginePhase.layout ); RenderImage renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNull); imageProvider1.complete(); await tester.idle(); // resolve the future from the image provider await tester.pump(null, EnginePhase.layout); renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNotNull); final TestImageProvider imageProvider2 = new TestImageProvider(); await tester.pumpWidget( new Container( key: key, child: new Image( image: imageProvider2 ) ), null, EnginePhase.layout ); renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNull); }); testWidgets('Verify Image doesn\'t reset its RenderImage when changing providers if it has gaplessPlayback set', (WidgetTester tester) async { final GlobalKey key = new GlobalKey(); final TestImageProvider imageProvider1 = new TestImageProvider(); await tester.pumpWidget( new Container( key: key, child: new Image( gaplessPlayback: true, image: imageProvider1 ) ), null, EnginePhase.layout ); RenderImage renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNull); imageProvider1.complete(); await tester.idle(); // resolve the future from the image provider await tester.pump(null, EnginePhase.layout); renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNotNull); final TestImageProvider imageProvider2 = new TestImageProvider(); await tester.pumpWidget( new Container( key: key, child: new Image( gaplessPlayback: true, image: imageProvider2 ) ), null, EnginePhase.layout ); renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNotNull); }); testWidgets('Verify Image resets its RenderImage when changing providers if it has a key', (WidgetTester tester) async { final GlobalKey key = new GlobalKey(); final TestImageProvider imageProvider1 = new TestImageProvider(); await tester.pumpWidget( new Image( key: key, image: imageProvider1 ), null, EnginePhase.layout ); RenderImage renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNull); imageProvider1.complete(); await tester.idle(); // resolve the future from the image provider await tester.pump(null, EnginePhase.layout); renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNotNull); final TestImageProvider imageProvider2 = new TestImageProvider(); await tester.pumpWidget( new Image( key: key, image: imageProvider2 ), null, EnginePhase.layout ); renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNull); }); testWidgets('Verify Image doesn\'t reset its RenderImage when changing providers if it has gaplessPlayback set', (WidgetTester tester) async { final GlobalKey key = new GlobalKey(); final TestImageProvider imageProvider1 = new TestImageProvider(); await tester.pumpWidget( new Image( key: key, gaplessPlayback: true, image: imageProvider1 ), null, EnginePhase.layout ); RenderImage renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNull); imageProvider1.complete(); await tester.idle(); // resolve the future from the image provider await tester.pump(null, EnginePhase.layout); renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNotNull); final TestImageProvider imageProvider2 = new TestImageProvider(); await tester.pumpWidget( new Image( key: key, gaplessPlayback: true, image: imageProvider2 ), null, EnginePhase.layout ); renderImage = key.currentContext.findRenderObject(); expect(renderImage.image, isNotNull); }); testWidgets('Verify ImageProvider configuration inheritance', (WidgetTester tester) async { final GlobalKey mediaQueryKey1 = new GlobalKey(debugLabel: 'mediaQueryKey1'); final GlobalKey mediaQueryKey2 = new GlobalKey(debugLabel: 'mediaQueryKey2'); final GlobalKey imageKey = new GlobalKey(debugLabel: 'image'); final TestImageProvider imageProvider = new TestImageProvider(); // Of the two nested MediaQuery objects, the innermost one, // mediaQuery2, should define the configuration of the imageProvider. await tester.pumpWidget( new MediaQuery( key: mediaQueryKey1, data: const MediaQueryData( devicePixelRatio: 10.0, padding: EdgeInsets.zero, ), child: new MediaQuery( key: mediaQueryKey2, data: const MediaQueryData( devicePixelRatio: 5.0, padding: EdgeInsets.zero, ), child: new Image( key: imageKey, image: imageProvider ), ) ) ); expect(imageProvider._configuration.devicePixelRatio, 5.0); // This is the same widget hierarchy as before except that the // two MediaQuery objects have exchanged places. The imageProvider // should be resolved again, with the new innermost MediaQuery. await tester.pumpWidget( new MediaQuery( key: mediaQueryKey2, data: const MediaQueryData( devicePixelRatio: 5.0, padding: EdgeInsets.zero, ), child: new MediaQuery( key: mediaQueryKey1, data: const MediaQueryData( devicePixelRatio: 10.0, padding: EdgeInsets.zero, ), child: new Image( key: imageKey, image: imageProvider ), ) ) ); expect(imageProvider._configuration.devicePixelRatio, 10.0); }); testWidgets('Verify ImageProvider configuration inheritance again', (WidgetTester tester) async { final GlobalKey mediaQueryKey1 = new GlobalKey(debugLabel: 'mediaQueryKey1'); final GlobalKey mediaQueryKey2 = new GlobalKey(debugLabel: 'mediaQueryKey2'); final GlobalKey imageKey = new GlobalKey(debugLabel: 'image'); final TestImageProvider imageProvider = new TestImageProvider(); // This is just a variation on the previous test. In this version the location // of the Image changes and the MediaQuery widgets do not. await tester.pumpWidget( new Row( children: <Widget> [ new MediaQuery( key: mediaQueryKey2, data: const MediaQueryData( devicePixelRatio: 5.0, padding: EdgeInsets.zero, ), child: new Image( key: imageKey, image: imageProvider ) ), new MediaQuery( key: mediaQueryKey1, data: const MediaQueryData( devicePixelRatio: 10.0, padding: EdgeInsets.zero, ), child: new Container(width: 100.0) ) ] ) ); expect(imageProvider._configuration.devicePixelRatio, 5.0); await tester.pumpWidget( new Row( children: <Widget> [ new MediaQuery( key: mediaQueryKey2, data: const MediaQueryData( devicePixelRatio: 5.0, padding: EdgeInsets.zero, ), child: new Container(width: 100.0) ), new MediaQuery( key: mediaQueryKey1, data: const MediaQueryData( devicePixelRatio: 10.0, padding: EdgeInsets.zero, ), child: new Image( key: imageKey, image: imageProvider ) ) ] ) ); expect(imageProvider._configuration.devicePixelRatio, 10.0); }); testWidgets('Verify Image stops listening to ImageStream', (WidgetTester tester) async { final TestImageProvider imageProvider = new TestImageProvider(); await tester.pumpWidget(new Image(image: imageProvider)); final State<Image> image = tester.state/*State<Image>*/(find.byType(Image)); expect(image.toString(), matches(new RegExp(r'_ImageState#[0-9]+\(stream: ImageStream\(OneFrameImageStreamCompleter; unresolved; 1 listener\); pixels: null\)'))); imageProvider.complete(); await tester.pump(); expect(image.toString(), matches(new RegExp(r'_ImageState#[0-9]+\(stream: ImageStream\(OneFrameImageStreamCompleter; \[100×100\] @ 1\.0x; 1 listener\); pixels: \[100×100\] @ 1\.0x\)'))); await tester.pumpWidget(new Container()); expect(image.toString(), matches(new RegExp(r'_ImageState#[0-9]+\(_StateLifecycle.defunct; not mounted; stream: ImageStream\(OneFrameImageStreamCompleter; \[100×100\] @ 1\.0x; 0 listeners\); pixels: \[100×100\] @ 1\.0x\)'))); }); testWidgets('Image.memory control test', (WidgetTester tester) async { await tester.pumpWidget(new Image.memory(new Uint8List.fromList(kTransparentImage))); }); } class TestImageProvider extends ImageProvider<TestImageProvider> { final Completer<ImageInfo> _completer = new Completer<ImageInfo>(); ImageConfiguration _configuration; @override Future<TestImageProvider> obtainKey(ImageConfiguration configuration) { return new SynchronousFuture<TestImageProvider>(this); } @override ImageStream resolve(ImageConfiguration configuration) { _configuration = configuration; return super.resolve(configuration); } @override ImageStreamCompleter load(TestImageProvider key) => new OneFrameImageStreamCompleter(_completer.future); void complete() { _completer.complete(new ImageInfo(image: new TestImage())); } @override String toString() => '$runtimeType#$hashCode()'; } class TestImage extends ui.Image { @override int get width => 100; @override int get height => 100; @override void dispose() { } }