// 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/material.dart';
import 'package:flutter_web/rendering.dart';
import 'package:flutter_web_test/flutter_web_test.dart';

import '../rendering/rendering_tester.dart';

class TestPaintingContext implements PaintingContext {
  final List<Invocation> invocations = <Invocation>[];

  @override
  void noSuchMethod(Invocation invocation) {
    invocations.add(invocation);
  }
}

void main() {
  group(Stack, () {
    testWidgets('stacks its children', (WidgetTester tester) async {
      await tester.pumpWidget(
        new Directionality(
          textDirection: TextDirection.ltr,
          child: Stack(children: [
            Text('a'),
            Text('b'),
          ]),
        ),
      );
      expect(find.text('a'), findsOneWidget);
      expect(find.text('b'), findsOneWidget);
    });
  });

  testWidgets('Can construct an empty Stack', (WidgetTester tester) async {
    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Stack(),
      ),
    );
  });

  testWidgets('Can construct an empty Centered Stack',
      (WidgetTester tester) async {
    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Center(child: new Stack()),
      ),
    );
  });

  testWidgets('Can change position data', (WidgetTester tester) async {
    const Key key = const Key('container');

    await tester.pumpWidget(
      new Stack(
        alignment: Alignment.topLeft,
        children: <Widget>[
          new Positioned(
            left: 10.0,
            child: new Container(
              key: key,
              width: 10.0,
              height: 10.0,
            ),
          ),
        ],
      ),
    );

    Element container;
    StackParentData parentData;

    container = tester.element(find.byKey(key));
    parentData = container.renderObject.parentData;
    expect(parentData.top, isNull);
    expect(parentData.right, isNull);
    expect(parentData.bottom, isNull);
    expect(parentData.left, equals(10.0));
    expect(parentData.width, isNull);
    expect(parentData.height, isNull);

    await tester.pumpWidget(
      new Stack(
        alignment: Alignment.topLeft,
        children: <Widget>[
          new Positioned(
            right: 10.0,
            child: new Container(
              key: key,
              width: 10.0,
              height: 10.0,
            ),
          ),
        ],
      ),
    );

    container = tester.element(find.byKey(key));
    parentData = container.renderObject.parentData;
    expect(parentData.top, isNull);
    expect(parentData.right, equals(10.0));
    expect(parentData.bottom, isNull);
    expect(parentData.left, isNull);
    expect(parentData.width, isNull);
    expect(parentData.height, isNull);
  });

  testWidgets('Can remove parent data', (WidgetTester tester) async {
    const Key key = const Key('container');
    final Container container =
        new Container(key: key, width: 10.0, height: 10.0);

    await tester.pumpWidget(
      new Stack(
        textDirection: TextDirection.ltr,
        children: <Widget>[new Positioned(left: 10.0, child: container)],
      ),
    );
    Element containerElement = tester.element(find.byKey(key));

    StackParentData parentData;
    parentData = containerElement.renderObject.parentData;
    expect(parentData.top, isNull);
    expect(parentData.right, isNull);
    expect(parentData.bottom, isNull);
    expect(parentData.left, equals(10.0));
    expect(parentData.width, isNull);
    expect(parentData.height, isNull);

    await tester.pumpWidget(
      new Stack(
        textDirection: TextDirection.ltr,
        children: <Widget>[container],
      ),
    );
    containerElement = tester.element(find.byKey(key));

    parentData = containerElement.renderObject.parentData;
    expect(parentData.top, isNull);
    expect(parentData.right, isNull);
    expect(parentData.bottom, isNull);
    expect(parentData.left, isNull);
    expect(parentData.width, isNull);
    expect(parentData.height, isNull);
  });

  testWidgets('Can align non-positioned children (LTR)',
      (WidgetTester tester) async {
    const Key child0Key = const Key('child0');
    const Key child1Key = const Key('child1');

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Center(
          child: new Stack(
            alignment: Alignment.center,
            children: <Widget>[
              new Container(key: child0Key, width: 20.0, height: 20.0),
              new Container(key: child1Key, width: 10.0, height: 10.0),
            ],
          ),
        ),
      ),
    );

    final Element child0 = tester.element(find.byKey(child0Key));
    final StackParentData child0RenderObjectParentData =
        child0.renderObject.parentData;
    expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));

    final Element child1 = tester.element(find.byKey(child1Key));
    final StackParentData child1RenderObjectParentData =
        child1.renderObject.parentData;
    expect(child1RenderObjectParentData.offset, equals(const Offset(5.0, 5.0)));

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Center(
          child: new Stack(
            alignment: AlignmentDirectional.bottomEnd,
            children: <Widget>[
              new Container(key: child0Key, width: 20.0, height: 20.0),
              new Container(key: child1Key, width: 10.0, height: 10.0),
            ],
          ),
        ),
      ),
    );

    expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));
    expect(
        child1RenderObjectParentData.offset, equals(const Offset(10.0, 10.0)));
  });

  testWidgets('Can align non-positioned children (RTL)',
      (WidgetTester tester) async {
    const Key child0Key = const Key('child0');
    const Key child1Key = const Key('child1');

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.rtl,
        child: new Center(
          child: new Stack(
            alignment: Alignment.center,
            children: <Widget>[
              new Container(key: child0Key, width: 20.0, height: 20.0),
              new Container(key: child1Key, width: 10.0, height: 10.0),
            ],
          ),
        ),
      ),
    );

    final Element child0 = tester.element(find.byKey(child0Key));
    final StackParentData child0RenderObjectParentData =
        child0.renderObject.parentData;
    expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));

    final Element child1 = tester.element(find.byKey(child1Key));
    final StackParentData child1RenderObjectParentData =
        child1.renderObject.parentData;
    expect(child1RenderObjectParentData.offset, equals(const Offset(5.0, 5.0)));

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.rtl,
        child: new Center(
          child: new Stack(
            alignment: AlignmentDirectional.bottomEnd,
            children: <Widget>[
              new Container(key: child0Key, width: 20.0, height: 20.0),
              new Container(key: child1Key, width: 10.0, height: 10.0),
            ],
          ),
        ),
      ),
    );

    expect(child0RenderObjectParentData.offset, equals(const Offset(0.0, 0.0)));
    expect(
        child1RenderObjectParentData.offset, equals(const Offset(0.0, 10.0)));
  });

  testWidgets('Can construct an empty IndexedStack',
      (WidgetTester tester) async {
    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new IndexedStack(),
      ),
    );
  });

  testWidgets('Can construct an empty Centered IndexedStack',
      (WidgetTester tester) async {
    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Center(child: new IndexedStack()),
      ),
    );
  });

  testWidgets('Can construct an IndexedStack', (WidgetTester tester) async {
    const int itemCount = 3;
    List<int> itemsPainted;

    Widget buildFrame(int index) {
      itemsPainted = <int>[];
      final List<Widget> items = new List<Widget>.generate(itemCount, (int i) {
        return new CustomPaint(
          child: new Text('$i', textDirection: TextDirection.ltr),
          painter: new TestCallbackPainter(onPaint: () {
            itemsPainted.add(i);
          }),
        );
      });
      return new Center(
        child: new IndexedStack(
          alignment: Alignment.topLeft,
          children: items,
          index: index,
        ),
      );
    }

    await tester.pumpWidget(buildFrame(0));
    expect(find.text('0'), findsOneWidget);
    expect(find.text('1'), findsOneWidget);
    expect(find.text('2'), findsOneWidget);
    // TODO(ferhat): enable once painters are invoked.
    //    expect(itemsPainted, equals(<int>[0]));
    //
    //    await tester.pumpWidget(buildFrame(1));
    //    expect(itemsPainted, equals(<int>[1]));
    //
    //    await tester.pumpWidget(buildFrame(2));
    //    expect(itemsPainted, equals(<int>[2]));
  });

  testWidgets('Can hit test an IndexedStack', (WidgetTester tester) async {
    const Key key = const Key('indexedStack');
    const int itemCount = 3;
    List<int> itemsTapped;

    Widget buildFrame(int index) {
      itemsTapped = <int>[];
      final List<Widget> items = new List<Widget>.generate(itemCount, (int i) {
        return new GestureDetector(
            child: new Text('$i', textDirection: TextDirection.ltr),
            onTap: () {
              itemsTapped.add(i);
            });
      });
      return new Center(
        child: new IndexedStack(
          alignment: Alignment.topLeft,
          children: items,
          key: key,
          index: index,
        ),
      );
    }

    await tester.pumpWidget(buildFrame(0));
    expect(itemsTapped, isEmpty);
    await tester.tap(find.byKey(key));
    expect(itemsTapped, <int>[0]);

    await tester.pumpWidget(buildFrame(2));
    expect(itemsTapped, isEmpty);
    await tester.tap(find.byKey(key));
    expect(itemsTapped, <int>[2]);
  });

  testWidgets('Can set width and height', (WidgetTester tester) async {
    const Key key = const Key('container');

    const BoxDecoration kBoxDecoration = const BoxDecoration(
      color: const Color(0xFF00FF00),
    );

    await tester.pumpWidget(
      new Stack(
        textDirection: TextDirection.ltr,
        children: const <Widget>[
          const Positioned(
            left: 10.0,
            width: 11.0,
            height: 12.0,
            child: const DecoratedBox(key: key, decoration: kBoxDecoration),
          ),
        ],
      ),
    );

    Element box;
    RenderBox renderBox;
    StackParentData parentData;

    box = tester.element(find.byKey(key));
    renderBox = box.renderObject;
    parentData = renderBox.parentData;
    expect(parentData.top, isNull);
    expect(parentData.right, isNull);
    expect(parentData.bottom, isNull);
    expect(parentData.left, equals(10.0));
    expect(parentData.width, equals(11.0));
    expect(parentData.height, equals(12.0));
    expect(parentData.offset.dx, equals(10.0));
    expect(parentData.offset.dy, equals(0.0));
    expect(renderBox.size.width, equals(11.0));
    expect(renderBox.size.height, equals(12.0));

    await tester.pumpWidget(
      new Stack(
        textDirection: TextDirection.ltr,
        children: const <Widget>[
          const Positioned(
            right: 10.0,
            width: 11.0,
            height: 12.0,
            child: const DecoratedBox(key: key, decoration: kBoxDecoration),
          ),
        ],
      ),
    );

    box = tester.element(find.byKey(key));
    renderBox = box.renderObject;
    parentData = renderBox.parentData;
    expect(parentData.top, isNull);
    expect(parentData.right, equals(10.0));
    expect(parentData.bottom, isNull);
    expect(parentData.left, isNull);
    expect(parentData.width, equals(11.0));
    expect(parentData.height, equals(12.0));
    expect(parentData.offset.dx, equals(779.0));
    expect(parentData.offset.dy, equals(0.0));
    expect(renderBox.size.width, equals(11.0));
    expect(renderBox.size.height, equals(12.0));
  });

  testWidgets('IndexedStack with null index', (WidgetTester tester) async {
    bool tapped;

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Center(
          child: new IndexedStack(
            index: null,
            children: <Widget>[
              new GestureDetector(
                behavior: HitTestBehavior.opaque,
                onTap: () {
                  tapped = true;
                },
                child: const SizedBox(
                  width: 200.0,
                  height: 200.0,
                ),
              ),
            ],
          ),
        ),
      ),
    );

    await tester.tap(find.byType(IndexedStack));
    final RenderBox box = tester.renderObject(find.byType(IndexedStack));
    expect(box.size, equals(const Size(200.0, 200.0)));
    expect(tapped, isNull);
  });

  testWidgets('Stack clip test', (WidgetTester tester) async {
    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Center(
          child: new Stack(
            children: <Widget>[
              new Container(
                width: 100.0,
                height: 100.0,
              ),
              new Positioned(
                top: 0.0,
                left: 0.0,
                child: new Container(
                  width: 200.0,
                  height: 200.0,
                ),
              ),
            ],
          ),
        ),
      ),
    );

    RenderBox box = tester.renderObject(find.byType(Stack));
    TestPaintingContext context = new TestPaintingContext();
    box.paint(context, Offset.zero);
    expect(context.invocations.first.memberName, equals(#pushClipRect));

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Center(
          child: new Stack(
            overflow: Overflow.visible,
            children: <Widget>[
              new Container(
                width: 100.0,
                height: 100.0,
              ),
              new Positioned(
                top: 0.0,
                left: 0.0,
                child: new Container(
                  width: 200.0,
                  height: 200.0,
                ),
              ),
            ],
          ),
        ),
      ),
    );

    box = tester.renderObject(find.byType(Stack));
    context = new TestPaintingContext();
    box.paint(context, Offset.zero);
    expect(context.invocations.first.memberName, equals(#paintChild));
  });

  testWidgets('Positioned.directional control test',
      (WidgetTester tester) async {
    final Key key = new UniqueKey();
    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Stack(
          children: <Widget>[
            new Positioned.directional(
              textDirection: TextDirection.rtl,
              start: 50.0,
              child: new Container(key: key, width: 75.0, height: 175.0),
            ),
          ],
        ),
      ),
    );

    expect(tester.getTopLeft(find.byKey(key)), const Offset(675.0, 0.0));

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Stack(
          children: <Widget>[
            new Positioned.directional(
              textDirection: TextDirection.ltr,
              start: 50.0,
              child: new 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 = new UniqueKey();
    await tester.pumpWidget(new Directionality(
      textDirection: TextDirection.rtl,
      child: new Stack(
        children: <Widget>[
          new PositionedDirectional(
            start: 50.0,
            child: new Container(key: key, width: 75.0, height: 175.0),
          ),
        ],
      ),
    ));

    expect(tester.getTopLeft(find.byKey(key)), const Offset(675.0, 0.0));

    await tester.pumpWidget(new Directionality(
      textDirection: TextDirection.ltr,
      child: new Stack(
        children: <Widget>[
          new PositionedDirectional(
            start: 50.0,
            child: new 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(
      new Stack(
        alignment: Alignment.center,
      ),
    );
    await tester.pumpWidget(
      new Stack(
        alignment: AlignmentDirectional.topStart,
        textDirection: TextDirection.rtl,
      ),
    );
    await tester.pumpWidget(
      new Stack(
        alignment: Alignment.center,
      ),
    );
  });

  testWidgets('Alignment with partially-positioned children',
      (WidgetTester tester) async {
    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.rtl,
        child: new Stack(
          alignment: Alignment.center,
          children: const <Widget>[
            const SizedBox(width: 100.0, height: 100.0),
            const Positioned(
                left: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                right: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                top: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                bottom: 0.0,
                child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                start: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                end: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                top: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                bottom: 0.0,
                child: const SizedBox(width: 100.0, height: 100.0)),
          ],
        ),
      ),
    );
    expect(tester.getRect(find.byType(SizedBox).at(0)),
        new Rect.fromLTWH(350.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(1)),
        new Rect.fromLTWH(0.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(2)),
        new Rect.fromLTWH(700.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(3)),
        new Rect.fromLTWH(350.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(4)),
        new Rect.fromLTWH(350.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(5)),
        new Rect.fromLTWH(700.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(6)),
        new Rect.fromLTWH(0.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(7)),
        new Rect.fromLTWH(350.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(8)),
        new Rect.fromLTWH(350.0, 500.0, 100.0, 100.0));

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Stack(
          alignment: Alignment.center,
          children: const <Widget>[
            const SizedBox(width: 100.0, height: 100.0),
            const Positioned(
                left: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                right: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                top: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                bottom: 0.0,
                child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                start: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                end: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                top: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                bottom: 0.0,
                child: const SizedBox(width: 100.0, height: 100.0)),
          ],
        ),
      ),
    );
    expect(tester.getRect(find.byType(SizedBox).at(0)),
        new Rect.fromLTWH(350.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(1)),
        new Rect.fromLTWH(0.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(2)),
        new Rect.fromLTWH(700.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(3)),
        new Rect.fromLTWH(350.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(4)),
        new Rect.fromLTWH(350.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(5)),
        new Rect.fromLTWH(0.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(6)),
        new Rect.fromLTWH(700.0, 250.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(7)),
        new Rect.fromLTWH(350.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(8)),
        new Rect.fromLTWH(350.0, 500.0, 100.0, 100.0));

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Stack(
          alignment: Alignment.bottomRight,
          children: const <Widget>[
            const SizedBox(width: 100.0, height: 100.0),
            const Positioned(
                left: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                right: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                top: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                bottom: 0.0,
                child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                start: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                end: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                top: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                bottom: 0.0,
                child: const SizedBox(width: 100.0, height: 100.0)),
          ],
        ),
      ),
    );
    expect(tester.getRect(find.byType(SizedBox).at(0)),
        new Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(1)),
        new Rect.fromLTWH(0.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(2)),
        new Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(3)),
        new Rect.fromLTWH(700.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(4)),
        new Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(5)),
        new Rect.fromLTWH(0.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(6)),
        new Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(7)),
        new Rect.fromLTWH(700.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(8)),
        new Rect.fromLTWH(700.0, 500.0, 100.0, 100.0));

    await tester.pumpWidget(
      new Directionality(
        textDirection: TextDirection.ltr,
        child: new Stack(
          alignment: Alignment.topLeft,
          children: const <Widget>[
            const SizedBox(width: 100.0, height: 100.0),
            const Positioned(
                left: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                right: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                top: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const Positioned(
                bottom: 0.0,
                child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                start: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                end: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                top: 0.0, child: const SizedBox(width: 100.0, height: 100.0)),
            const PositionedDirectional(
                bottom: 0.0,
                child: const SizedBox(width: 100.0, height: 100.0)),
          ],
        ),
      ),
    );
    expect(tester.getRect(find.byType(SizedBox).at(0)),
        new Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(1)),
        new Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(2)),
        new Rect.fromLTWH(700.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(3)),
        new Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(4)),
        new Rect.fromLTWH(0.0, 500.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(5)),
        new Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(6)),
        new Rect.fromLTWH(700.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(7)),
        new Rect.fromLTWH(0.0, 0.0, 100.0, 100.0));
    expect(tester.getRect(find.byType(SizedBox).at(8)),
        new Rect.fromLTWH(0.0, 500.0, 100.0, 100.0));
  });
}