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Add:创建 flutter go web 版

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ryan
2019-08-13 20:38:46 +08:00
parent 64513b59c1
commit da67ccf5a8
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packages/flutter_web/test/widgets/custom_paint_test.dart Normal file
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// Copyright 2015 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 'package:flutter_web_test/flutter_web_test.dart';
import 'package:flutter_web/rendering.dart';
import 'package:flutter_web/widgets.dart';
class TestCustomPainter extends CustomPainter {
TestCustomPainter({this.log, this.name});
final List<String> log;
final String name;
@override
void paint(Canvas canvas, Size size) {
log.add(name);
}
@override
bool shouldRepaint(TestCustomPainter oldPainter) => true;
}
void main() {
testWidgets('Control test for custom painting', (WidgetTester tester) async {
final List<String> log = <String>[];
await tester.pumpWidget(new CustomPaint(
painter: new TestCustomPainter(log: log, name: 'background'),
foregroundPainter: new TestCustomPainter(log: log, name: 'foreground'),
child: new CustomPaint(
painter: new TestCustomPainter(log: log, name: 'child'))));
// TODO(het): enable once paint override gets called.
// expect(log, equals(<String>['background', 'child', 'foreground']));
});
testWidgets('CustomPaint sizing', (WidgetTester tester) async {
final GlobalKey target = new GlobalKey();
await tester.pumpWidget(new Center(child: new CustomPaint(key: target)));
expect(target.currentContext.size, Size.zero);
await tester.pumpWidget(new Center(
child: new CustomPaint(key: target, child: new Container())));
expect(target.currentContext.size, const Size(800.0, 600.0));
await tester.pumpWidget(new Center(
child: new CustomPaint(key: target, size: const Size(20.0, 20.0))));
expect(target.currentContext.size, const Size(20.0, 20.0));
await tester.pumpWidget(new Center(
child: new CustomPaint(key: target, size: const Size(2000.0, 100.0))));
expect(target.currentContext.size, const Size(800.0, 100.0));
await tester.pumpWidget(new Center(
child: new CustomPaint(
key: target, size: Size.zero, child: new Container())));
expect(target.currentContext.size, const Size(800.0, 600.0));
await tester.pumpWidget(new Center(
child: new CustomPaint(
key: target, child: new Container(height: 0.0, width: 0.0))));
expect(target.currentContext.size, Size.zero);
});
testWidgets('Raster cache hints', (WidgetTester tester) async {
final GlobalKey target = new GlobalKey();
final List<String> log = <String>[];
await tester.pumpWidget(new CustomPaint(
key: target,
isComplex: true,
painter: new TestCustomPainter(log: log),
));
RenderCustomPaint renderCustom = target.currentContext.findRenderObject();
expect(renderCustom.isComplex, true);
expect(renderCustom.willChange, false);
await tester.pumpWidget(new CustomPaint(
key: target,
willChange: true,
foregroundPainter: new TestCustomPainter(log: log),
));
renderCustom = target.currentContext.findRenderObject();
expect(renderCustom.isComplex, false);
expect(renderCustom.willChange, true);
});
}