347 lines
10 KiB
Dart
347 lines
10 KiB
Dart
// Copyright 2015 The Chromium 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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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(new Stack());
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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(new Center(child: new Stack()));
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});
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testWidgets('Can change position data', (WidgetTester tester) async {
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Key key = const Key('container');
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await tester.pumpWidget(
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new Stack(
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children: <Widget>[
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new Positioned(
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left: 10.0,
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child: new 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;
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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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new Stack(
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children: <Widget>[
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new Positioned(
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right: 10.0,
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child: new 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;
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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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Key key = const Key('container');
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Container container = new Container(key: key, width: 10.0, height: 10.0);
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await tester.pumpWidget(new Stack(children: <Widget>[ new Positioned(left: 10.0, child: container) ]));
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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;
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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(new Stack(children: <Widget>[ container ]));
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containerElement = tester.element(find.byKey(key));
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parentData = containerElement.renderObject.parentData;
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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', (WidgetTester tester) async {
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Key child0Key = const Key('child0');
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Key child1Key = const Key('child1');
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await tester.pumpWidget(
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new Center(
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child: new Stack(
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children: <Widget>[
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new Container(key: child0Key, width: 20.0, height: 20.0),
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new Container(key: child1Key, width: 10.0, height: 10.0)
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],
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alignment: const FractionalOffset(0.5, 0.5)
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)
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)
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);
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Element child0 = tester.element(find.byKey(child0Key));
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final StackParentData child0RenderObjectParentData = child0.renderObject.parentData;
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expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));
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Element child1 = tester.element(find.byKey(child1Key));
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final StackParentData child1RenderObjectParentData = child1.renderObject.parentData;
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expect(child1RenderObjectParentData.offset, equals(const Offset(5.0, 5.0)));
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});
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testWidgets('Can construct an empty IndexedStack', (WidgetTester tester) async {
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await tester.pumpWidget(new IndexedStack());
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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(new Center(child: new IndexedStack()));
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});
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testWidgets('Can construct an IndexedStack', (WidgetTester tester) async {
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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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List<Widget> items = new List<Widget>.generate(itemCount, (int i) {
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return new CustomPaint(
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child: new Text('$i'),
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painter: new 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 new Center(child: new IndexedStack(children: items, index: index));
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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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Key key = const Key('indexedStack');
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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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List<Widget> items = new List<Widget>.generate(itemCount, (int i) {
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return new GestureDetector(child: new Text('$i'), onTap: () { itemsTapped.add(i); });
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});
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return new Center(child: new IndexedStack(children: items, key: key, index: index));
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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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Key key = const Key('container');
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BoxDecoration kBoxDecoration = const BoxDecoration(
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backgroundColor: const Color(0xFF00FF00)
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);
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await tester.pumpWidget(
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new Stack(
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children: <Widget>[
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new 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: new 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;
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parentData = renderBox.parentData;
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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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new Stack(
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children: <Widget>[
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new 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: new 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;
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parentData = renderBox.parentData;
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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('IndexedStack with null index', (WidgetTester tester) async {
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bool tapped;
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await tester.pumpWidget(
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new Center(
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child: new IndexedStack(
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index: null,
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children: <Widget>[
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new GestureDetector(
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behavior: HitTestBehavior.opaque,
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onTap: () { print("HELLO"); 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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await tester.tap(find.byType(IndexedStack));
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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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new Center(
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child: new Stack(
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children: <Widget>[
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new Container(
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width: 100.0,
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height: 100.0
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),
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new Positioned(
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top: 0.0,
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left: 0.0,
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child: new Container(
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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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RenderBox box = tester.renderObject(find.byType(Stack));
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TestPaintingContext context = new 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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new Center(
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child: new Stack(
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overflow: Overflow.visible,
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children: <Widget>[
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new Container(
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width: 100.0,
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height: 100.0
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),
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new Positioned(
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top: 0.0,
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left: 0.0,
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child: new Container(
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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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box = tester.renderObject(find.byType(Stack));
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context = new 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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}
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