mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
7948a7863b
This follows https://github.com/flutter/flutter/pull/59364 and cl/319911104 FittedBox is still default to hardEdge clip as new FittedBox is added to Google very quickly. Let's first roll other part of changes into Google first.
784 lines
28 KiB
Dart
784 lines
28 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 'package:flutter_test/flutter_test.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/widgets.dart';
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import '../rendering/rendering_tester.dart';
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class TestPaintingContext implements PaintingContext {
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final List<Invocation> invocations = <Invocation>[];
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@override
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void noSuchMethod(Invocation invocation) {
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invocations.add(invocation);
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}
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}
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void main() {
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testWidgets('Can construct an empty Stack', (WidgetTester tester) async {
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Stack(),
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),
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);
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});
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testWidgets('Can construct an empty Centered Stack', (WidgetTester tester) async {
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(child: Stack()),
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),
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);
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});
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testWidgets('Can change position data', (WidgetTester tester) async {
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const Key key = Key('container');
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await tester.pumpWidget(
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Stack(
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alignment: Alignment.topLeft,
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children: <Widget>[
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Positioned(
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left: 10.0,
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child: Container(
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key: key,
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width: 10.0,
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height: 10.0,
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),
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),
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],
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),
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);
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Element container;
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StackParentData parentData;
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container = tester.element(find.byKey(key));
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parentData = container.renderObject.parentData as StackParentData;
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expect(parentData.top, isNull);
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expect(parentData.right, isNull);
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expect(parentData.bottom, isNull);
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expect(parentData.left, equals(10.0));
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expect(parentData.width, isNull);
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expect(parentData.height, isNull);
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await tester.pumpWidget(
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Stack(
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alignment: Alignment.topLeft,
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children: <Widget>[
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Positioned(
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right: 10.0,
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child: Container(
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key: key,
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width: 10.0,
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height: 10.0,
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),
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),
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],
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),
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);
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container = tester.element(find.byKey(key));
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parentData = container.renderObject.parentData as StackParentData;
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expect(parentData.top, isNull);
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expect(parentData.right, equals(10.0));
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expect(parentData.bottom, isNull);
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expect(parentData.left, isNull);
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expect(parentData.width, isNull);
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expect(parentData.height, isNull);
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});
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testWidgets('Can remove parent data', (WidgetTester tester) async {
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const Key key = Key('container');
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final Container container = Container(key: key, width: 10.0, height: 10.0);
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await tester.pumpWidget(
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Stack(
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textDirection: TextDirection.ltr,
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children: <Widget>[ Positioned(left: 10.0, child: container) ],
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),
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);
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Element containerElement = tester.element(find.byKey(key));
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StackParentData parentData;
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parentData = containerElement.renderObject.parentData as StackParentData;
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expect(parentData.top, isNull);
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expect(parentData.right, isNull);
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expect(parentData.bottom, isNull);
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expect(parentData.left, equals(10.0));
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expect(parentData.width, isNull);
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expect(parentData.height, isNull);
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await tester.pumpWidget(
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Stack(
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textDirection: TextDirection.ltr,
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children: <Widget>[ container ],
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),
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);
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containerElement = tester.element(find.byKey(key));
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parentData = containerElement.renderObject.parentData as StackParentData;
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expect(parentData.top, isNull);
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expect(parentData.right, isNull);
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expect(parentData.bottom, isNull);
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expect(parentData.left, isNull);
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expect(parentData.width, isNull);
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expect(parentData.height, isNull);
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});
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testWidgets('Can align non-positioned children (LTR)', (WidgetTester tester) async {
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const Key child0Key = Key('child0');
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const Key child1Key = Key('child1');
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: Stack(
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alignment: Alignment.center,
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children: <Widget>[
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Container(key: child0Key, width: 20.0, height: 20.0),
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Container(key: child1Key, width: 10.0, height: 10.0),
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],
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),
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),
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),
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);
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final Element child0 = tester.element(find.byKey(child0Key));
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final StackParentData child0RenderObjectParentData = child0.renderObject.parentData as StackParentData;
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expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));
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final Element child1 = tester.element(find.byKey(child1Key));
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final StackParentData child1RenderObjectParentData = child1.renderObject.parentData as StackParentData;
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expect(child1RenderObjectParentData.offset, equals(const Offset(5.0, 5.0)));
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: Stack(
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alignment: AlignmentDirectional.bottomEnd,
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children: <Widget>[
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Container(key: child0Key, width: 20.0, height: 20.0),
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Container(key: child1Key, width: 10.0, height: 10.0),
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],
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),
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),
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),
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);
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expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));
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expect(child1RenderObjectParentData.offset, equals(const Offset(10.0, 10.0)));
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});
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testWidgets('Can align non-positioned children (RTL)', (WidgetTester tester) async {
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const Key child0Key = Key('child0');
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const Key child1Key = Key('child1');
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.rtl,
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child: Center(
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child: Stack(
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alignment: Alignment.center,
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children: <Widget>[
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Container(key: child0Key, width: 20.0, height: 20.0),
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Container(key: child1Key, width: 10.0, height: 10.0),
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],
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),
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),
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),
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);
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final Element child0 = tester.element(find.byKey(child0Key));
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final StackParentData child0RenderObjectParentData = child0.renderObject.parentData as StackParentData;
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expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));
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final Element child1 = tester.element(find.byKey(child1Key));
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final StackParentData child1RenderObjectParentData = child1.renderObject.parentData as StackParentData;
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expect(child1RenderObjectParentData.offset, equals(const Offset(5.0, 5.0)));
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.rtl,
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child: Center(
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child: Stack(
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alignment: AlignmentDirectional.bottomEnd,
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children: <Widget>[
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Container(key: child0Key, width: 20.0, height: 20.0),
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Container(key: child1Key, width: 10.0, height: 10.0),
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],
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),
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),
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),
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);
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expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));
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expect(child1RenderObjectParentData.offset, equals(const Offset(0.0, 10.0)));
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});
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testWidgets('Can construct an empty IndexedStack', (WidgetTester tester) async {
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: IndexedStack(),
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),
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);
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});
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testWidgets('Can construct an empty Centered IndexedStack', (WidgetTester tester) async {
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(child: IndexedStack()),
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),
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);
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});
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testWidgets('Can construct an IndexedStack', (WidgetTester tester) async {
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const int itemCount = 3;
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List<int> itemsPainted;
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Widget buildFrame(int index) {
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itemsPainted = <int>[];
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final List<Widget> items = List<Widget>.generate(itemCount, (int i) {
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return CustomPaint(
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child: Text('$i', textDirection: TextDirection.ltr),
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painter: TestCallbackPainter(
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onPaint: () { itemsPainted.add(i); }
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),
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);
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});
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return Center(
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child: IndexedStack(
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alignment: Alignment.topLeft,
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children: items,
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index: index,
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),
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);
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}
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await tester.pumpWidget(buildFrame(0));
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expect(find.text('0'), findsOneWidget);
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expect(find.text('1'), findsOneWidget);
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expect(find.text('2'), findsOneWidget);
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expect(itemsPainted, equals(<int>[0]));
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await tester.pumpWidget(buildFrame(1));
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expect(itemsPainted, equals(<int>[1]));
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await tester.pumpWidget(buildFrame(2));
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expect(itemsPainted, equals(<int>[2]));
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});
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testWidgets('Can hit test an IndexedStack', (WidgetTester tester) async {
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const Key key = Key('indexedStack');
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const int itemCount = 3;
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List<int> itemsTapped;
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Widget buildFrame(int index) {
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itemsTapped = <int>[];
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final List<Widget> items = List<Widget>.generate(itemCount, (int i) {
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return GestureDetector(child: Text('$i', textDirection: TextDirection.ltr), onTap: () { itemsTapped.add(i); });
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});
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return Center(
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child: IndexedStack(
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alignment: Alignment.topLeft,
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children: items,
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key: key,
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index: index,
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),
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);
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}
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await tester.pumpWidget(buildFrame(0));
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expect(itemsTapped, isEmpty);
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await tester.tap(find.byKey(key));
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expect(itemsTapped, <int>[0]);
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await tester.pumpWidget(buildFrame(2));
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expect(itemsTapped, isEmpty);
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await tester.tap(find.byKey(key));
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expect(itemsTapped, <int>[2]);
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});
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testWidgets('Can set width and height', (WidgetTester tester) async {
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const Key key = Key('container');
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const BoxDecoration kBoxDecoration = BoxDecoration(
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color: Color(0xFF00FF00),
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);
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await tester.pumpWidget(
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Stack(
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textDirection: TextDirection.ltr,
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children: const <Widget>[
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Positioned(
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left: 10.0,
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width: 11.0,
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height: 12.0,
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child: DecoratedBox(key: key, decoration: kBoxDecoration),
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),
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],
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),
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);
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Element box;
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RenderBox renderBox;
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StackParentData parentData;
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box = tester.element(find.byKey(key));
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renderBox = box.renderObject as RenderBox;
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parentData = renderBox.parentData as StackParentData;
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expect(parentData.top, isNull);
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expect(parentData.right, isNull);
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expect(parentData.bottom, isNull);
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expect(parentData.left, equals(10.0));
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expect(parentData.width, equals(11.0));
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expect(parentData.height, equals(12.0));
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expect(parentData.offset.dx, equals(10.0));
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expect(parentData.offset.dy, equals(0.0));
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expect(renderBox.size.width, equals(11.0));
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expect(renderBox.size.height, equals(12.0));
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await tester.pumpWidget(
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Stack(
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textDirection: TextDirection.ltr,
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children: const <Widget>[
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Positioned(
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right: 10.0,
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width: 11.0,
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height: 12.0,
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child: DecoratedBox(key: key, decoration: kBoxDecoration),
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),
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],
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),
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);
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box = tester.element(find.byKey(key));
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renderBox = box.renderObject as RenderBox;
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parentData = renderBox.parentData as StackParentData;
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expect(parentData.top, isNull);
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expect(parentData.right, equals(10.0));
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expect(parentData.bottom, isNull);
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expect(parentData.left, isNull);
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expect(parentData.width, equals(11.0));
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expect(parentData.height, equals(12.0));
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expect(parentData.offset.dx, equals(779.0));
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expect(parentData.offset.dy, equals(0.0));
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expect(renderBox.size.width, equals(11.0));
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expect(renderBox.size.height, equals(12.0));
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});
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testWidgets('Can set and update clipBehavior', (WidgetTester tester) async {
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await tester.pumpWidget(Stack(textDirection: TextDirection.ltr));
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final RenderStack renderObject = tester.allRenderObjects.whereType<RenderStack>().first;
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expect(renderObject.clipBehavior, equals(Clip.hardEdge));
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await tester.pumpWidget(Stack(textDirection: TextDirection.ltr, clipBehavior: Clip.hardEdge));
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expect(renderObject.clipBehavior, equals(Clip.hardEdge));
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});
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testWidgets('IndexedStack with null index', (WidgetTester tester) async {
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bool tapped;
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: IndexedStack(
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index: null,
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children: <Widget>[
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GestureDetector(
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behavior: HitTestBehavior.opaque,
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onTap: () { tapped = true; },
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child: const SizedBox(
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width: 200.0,
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height: 200.0,
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),
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),
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],
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),
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),
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),
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);
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await tester.tap(find.byType(IndexedStack));
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final RenderBox box = tester.renderObject(find.byType(IndexedStack));
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expect(box.size, equals(const Size(200.0, 200.0)));
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expect(tapped, isNull);
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});
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testWidgets('Stack clip test', (WidgetTester tester) async {
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: Stack(
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clipBehavior: Clip.hardEdge,
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children: const <Widget>[
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SizedBox(
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width: 100.0,
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height: 100.0,
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),
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Positioned(
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top: 0.0,
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left: 0.0,
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child: SizedBox(
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width: 200.0,
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height: 200.0,
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),
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),
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],
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),
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),
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),
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);
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RenderBox box = tester.renderObject(find.byType(Stack));
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TestPaintingContext context = TestPaintingContext();
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box.paint(context, Offset.zero);
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expect(context.invocations.first.memberName, equals(#pushClipRect));
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: Stack(
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clipBehavior: Clip.none,
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children: const <Widget>[
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SizedBox(
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width: 100.0,
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height: 100.0,
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),
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Positioned(
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top: 0.0,
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left: 0.0,
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child: SizedBox(
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width: 200.0,
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height: 200.0,
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),
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),
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],
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),
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),
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),
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);
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box = tester.renderObject(find.byType(Stack));
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context = TestPaintingContext();
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box.paint(context, Offset.zero);
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expect(context.invocations.first.memberName, equals(#paintChild));
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});
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testWidgets('Stack sizing: default', (WidgetTester tester) async {
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final List<String> logs = <String>[];
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: Center(
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child: ConstrainedBox(
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constraints: const BoxConstraints(
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minWidth: 2.0,
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maxWidth: 3.0,
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minHeight: 5.0,
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maxHeight: 7.0,
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),
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child: Stack(
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children: <Widget>[
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LayoutBuilder(
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builder: (BuildContext context, BoxConstraints constraints) {
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logs.add(constraints.toString());
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return const Placeholder();
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},
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),
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],
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),
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),
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),
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),
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);
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expect(logs, <String>['BoxConstraints(0.0<=w<=3.0, 0.0<=h<=7.0)']);
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});
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testWidgets('Stack sizing: explicit', (WidgetTester tester) async {
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final List<String> logs = <String>[];
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Widget buildStack(StackFit sizing) {
|
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return Directionality(
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textDirection: TextDirection.ltr,
|
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child: Center(
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child: ConstrainedBox(
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constraints: const BoxConstraints(
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minWidth: 2.0,
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maxWidth: 3.0,
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minHeight: 5.0,
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maxHeight: 7.0,
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),
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child: Stack(
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fit: sizing,
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children: <Widget>[
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LayoutBuilder(
|
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builder: (BuildContext context, BoxConstraints constraints) {
|
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logs.add(constraints.toString());
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return const Placeholder();
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},
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),
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],
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),
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),
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),
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);
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}
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await tester.pumpWidget(buildStack(StackFit.loose));
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logs.add('=1=');
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await tester.pumpWidget(buildStack(StackFit.expand));
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logs.add('=2=');
|
|
await tester.pumpWidget(buildStack(StackFit.passthrough));
|
|
expect(logs, <String>[
|
|
'BoxConstraints(0.0<=w<=3.0, 0.0<=h<=7.0)',
|
|
'=1=',
|
|
'BoxConstraints(w=3.0, h=7.0)',
|
|
'=2=',
|
|
'BoxConstraints(2.0<=w<=3.0, 5.0<=h<=7.0)',
|
|
]);
|
|
});
|
|
|
|
testWidgets('Positioned.directional control test', (WidgetTester tester) async {
|
|
final Key key = UniqueKey();
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Stack(
|
|
children: <Widget>[
|
|
Positioned.directional(
|
|
textDirection: TextDirection.rtl,
|
|
start: 50.0,
|
|
child: Container(key: key, width: 75.0, height: 175.0),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(tester.getTopLeft(find.byKey(key)), const Offset(675.0, 0.0));
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Stack(
|
|
children: <Widget>[
|
|
Positioned.directional(
|
|
textDirection: TextDirection.ltr,
|
|
start: 50.0,
|
|
child: Container(key: key, width: 75.0, height: 175.0),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(tester.getTopLeft(find.byKey(key)), const Offset(50.0, 0.0));
|
|
});
|
|
|
|
testWidgets('PositionedDirectional control test', (WidgetTester tester) async {
|
|
final Key key = UniqueKey();
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.rtl,
|
|
child: Stack(
|
|
children: <Widget>[
|
|
PositionedDirectional(
|
|
start: 50.0,
|
|
child: Container(key: key, width: 75.0, height: 175.0),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(tester.getTopLeft(find.byKey(key)), const Offset(675.0, 0.0));
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Stack(
|
|
children: <Widget>[
|
|
PositionedDirectional(
|
|
start: 50.0,
|
|
child: Container(key: key, width: 75.0, height: 175.0),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(tester.getTopLeft(find.byKey(key)), const Offset(50.0, 0.0));
|
|
});
|
|
|
|
testWidgets('Can change the text direction of a Stack', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
Stack(
|
|
alignment: Alignment.center,
|
|
),
|
|
);
|
|
await tester.pumpWidget(
|
|
Stack(
|
|
alignment: AlignmentDirectional.topStart,
|
|
textDirection: TextDirection.rtl,
|
|
),
|
|
);
|
|
await tester.pumpWidget(
|
|
Stack(
|
|
alignment: Alignment.center,
|
|
),
|
|
);
|
|
});
|
|
|
|
testWidgets('Alignment with partially-positioned children', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.rtl,
|
|
child: Stack(
|
|
alignment: Alignment.center,
|
|
children: const <Widget>[
|
|
SizedBox(width: 100.0, height: 100.0),
|
|
Positioned(left: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(right: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(top: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(bottom: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(start: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(end: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(top: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(bottom: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
expect(tester.getRect(find.byType(SizedBox).at(0)), const Rect.fromLTWH(350.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(1)), const Rect.fromLTWH(0.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(2)), const Rect.fromLTWH(700.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(3)), const Rect.fromLTWH(350.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(4)), const Rect.fromLTWH(350.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(5)), const Rect.fromLTWH(700.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(6)), const Rect.fromLTWH(0.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(7)), const Rect.fromLTWH(350.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(8)), const Rect.fromLTWH(350.0, 500.0, 100.0, 100.0));
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Stack(
|
|
alignment: Alignment.center,
|
|
children: const <Widget>[
|
|
SizedBox(width: 100.0, height: 100.0),
|
|
Positioned(left: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(right: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(top: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(bottom: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(start: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(end: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(top: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(bottom: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
expect(tester.getRect(find.byType(SizedBox).at(0)), const Rect.fromLTWH(350.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(1)), const Rect.fromLTWH(0.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(2)), const Rect.fromLTWH(700.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(3)), const Rect.fromLTWH(350.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(4)), const Rect.fromLTWH(350.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(5)), const Rect.fromLTWH(0.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(6)), const Rect.fromLTWH(700.0, 250.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(7)), const Rect.fromLTWH(350.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(8)), const Rect.fromLTWH(350.0, 500.0, 100.0, 100.0));
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Stack(
|
|
alignment: Alignment.bottomRight,
|
|
children: const <Widget>[
|
|
SizedBox(width: 100.0, height: 100.0),
|
|
Positioned(left: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(right: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(top: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(bottom: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(start: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(end: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(top: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(bottom: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
expect(tester.getRect(find.byType(SizedBox).at(0)), const Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(1)), const Rect.fromLTWH(0.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(2)), const Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(3)), const Rect.fromLTWH(700.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(4)), const Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(5)), const Rect.fromLTWH(0.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(6)), const Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(7)), const Rect.fromLTWH(700.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(8)), const Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
|
|
|
|
await tester.pumpWidget(
|
|
Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: Stack(
|
|
alignment: Alignment.topLeft,
|
|
children: const <Widget>[
|
|
SizedBox(width: 100.0, height: 100.0),
|
|
Positioned(left: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(right: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(top: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
Positioned(bottom: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(start: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(end: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(top: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
PositionedDirectional(bottom: 0.0, child: SizedBox(width: 100.0, height: 100.0)),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
expect(tester.getRect(find.byType(SizedBox).at(0)), const Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(1)), const Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(2)), const Rect.fromLTWH(700.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(3)), const Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(4)), const Rect.fromLTWH(0.0, 500.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(5)), const Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(6)), const Rect.fromLTWH(700.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(7)), const Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
|
|
expect(tester.getRect(find.byType(SizedBox).at(8)), const Rect.fromLTWH(0.0, 500.0, 100.0, 100.0));
|
|
});
|
|
|
|
testWidgets('Stack error messages', (WidgetTester tester) async {
|
|
await tester.pumpWidget(
|
|
Stack(),
|
|
);
|
|
expect(
|
|
tester.takeException().toString(),
|
|
'No Directionality widget found.\n'
|
|
'Stack widgets require a Directionality widget ancestor to resolve the \'alignment\' argument.\n'
|
|
'The default value for \'alignment\' is AlignmentDirectional.topStart, which requires a text direction.\n'
|
|
'The specific widget that could not find a Directionality ancestor was:\n'
|
|
' Stack\n'
|
|
'The ownership chain for the affected widget is: "Stack ← [root]"\n'
|
|
'Typically, the Directionality widget is introduced by the MaterialApp or WidgetsApp widget at the '
|
|
'top of your application widget tree. It determines the ambient reading direction and is used, for '
|
|
'example, to determine how to lay out text, how to interpret "start" and "end" values, and to resolve '
|
|
'EdgeInsetsDirectional, AlignmentDirectional, and other *Directional objects.\n'
|
|
'Instead of providing a Directionality widget, another solution would be passing a non-directional '
|
|
'\'alignment\', or an explicit \'textDirection\', to the Stack.'
|
|
);
|
|
});
|
|
}
|