packages/flutter/test_fixes/widgets.dart

// Copyright 2014 The Flutter 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/widgets.dart';

void main() {
  // Generic reference variables.
  BuildContext context;
  RenderObjectWidget renderObjectWidget;
  RenderObject renderObject;
  Object object;

  // Changes made in https://github.com/flutter/flutter/pull/44189
  const Element element = Element(myWidget);
  element.inheritFromElement(ancestor);
  element.inheritFromWidgetOfExactType(targetType);
  element.ancestorInheritedElementForWidgetOfExactType(targetType);
  element.ancestorWidgetOfExactType(targetType);
  element.ancestorStateOfType(TypeMatcher<targetType>());
  element.rootAncestorStateOfType(TypeMatcher<targetType>());
  element.ancestorRenderObjectOfType(TypeMatcher<targetType>());

  // Changes made in https://github.com/flutter/flutter/pull/45941 and https://github.com/flutter/flutter/pull/83843
  final WidgetsBinding binding = WidgetsBinding.instance;
  binding.deferFirstFrameReport();
  binding.allowFirstFrameReport();

  // Changes made in https://github.com/flutter/flutter/pull/44189
  const StatefulElement statefulElement = StatefulElement(myWidget);
  statefulElement.inheritFromElement(ancestor);

  // Changes made in https://github.com/flutter/flutter/pull/44189
  const BuildContext buildContext = Element(myWidget);
  buildContext.inheritFromElement(ancestor);
  buildContext.inheritFromWidgetOfExactType(targetType);
  buildContext.ancestorInheritedElementForWidgetOfExactType(targetType);
  buildContext.ancestorWidgetOfExactType(targetType);
  buildContext.ancestorStateOfType(TypeMatcher<targetType>());
  buildContext.rootAncestorStateOfType(TypeMatcher<targetType>());
  buildContext.ancestorRenderObjectOfType(TypeMatcher<targetType>());

  // Changes made in https://github.com/flutter/flutter/pull/61648
  const Form form = Form(autovalidate: true);
  const Form form = Form(autovalidate: false);
  const Form form = Form(error: '');
  final autoMode = form.autovalidate;

  // Changes made in https://github.com/flutter/flutter/pull/61648
  const FormField formField = FormField(autovalidate: true);
  const FormField formField = FormField(autovalidate: false);
  const FormField formField = FormField(error: '');
  final autoMode = formField.autovalidate;

  // Changes made in https://github.com/flutter/flutter/pull/66305
  const Stack stack = Stack(overflow: Overflow.visible);
  const Stack stack = Stack(overflow: Overflow.clip);
  const Stack stack = Stack(error: '');
  final behavior = stack.overflow;

  // Changes made in https://github.com/flutter/flutter/pull/68736
  MediaQuery.of(context, nullOk: true);
  MediaQuery.of(context, nullOk: false);
  MediaQuery.of(error: '');

  // Changes made in https://github.com/flutter/flutter/pull/70726
  Navigator.of(context, nullOk: true);
  Navigator.of(context, nullOk: false);
  Navigator.of(error: '');

  // Changes made in https://github.com/flutter/flutter/pull/68910
  Router.of(context, nullOk: true);
  Router.of(context, nullOk: false);
  Router.of(error: '');

  // Changes made in https://github.com/flutter/flutter/pull/68911
  Localizations.localeOf(context, nullOk: true);
  Localizations.localeOf(context, nullOk: false);
  Localizations.localeOf(error: '');

  // Changes made in https://github.com/flutter/flutter/pull/68917
  FocusTraversalOrder.of(context, nullOk: true);
  FocusTraversalOrder.of(context, nullOk: false);
  FocusTraversalOrder.of(error: '');
  FocusTraversalGroup.of(error: '');
  FocusTraversalGroup.of(context, nullOk: true);
  FocusTraversalGroup.of(context, nullOk: false);
  Focus.of(context, nullOk: true);
  Focus.of(context, nullOk: false);
  Focus.of(error: '');

  // Changes made in https://github.com/flutter/flutter/pull/68921
  Shortcuts.of(context, nullOk: true);
  Shortcuts.of(context, nullOk: false);
  Shortcuts.of(error: '');
  Actions.find(error: '');
  Actions.find(context, nullOk: true);
  Actions.find(context, nullOk: false);
  Actions.handler(context, nullOk: true);
  Actions.handler(context, nullOk: false);
  Actions.handler(error: '');
  Actions.invoke(error: '');
  Actions.invoke(context, nullOk: true);
  Actions.invoke(context, nullOk: false);

  // Changes made in https://github.com/flutter/flutter/pull/68925
  AnimatedList.of(context, nullOk: true);
  AnimatedList.of(context, nullOk: false);
  AnimatedList.of(error: '');
  SliverAnimatedList.of(error: '');
  SliverAnimatedList.of(context, nullOk: true);
  SliverAnimatedList.of(context, nullOk: false);

  // Changes made in https://github.com/flutter/flutter/pull/59127
  const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem(title: myTitle);
  const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem();
  const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem(error: '');
  bottomNavigationBarItem.title;

  // Changes made in https://github.com/flutter/flutter/pull/79160
  Draggable draggable = Draggable();
  draggable = Draggable(dragAnchor: DragAnchor.child);
  draggable = Draggable(dragAnchor: DragAnchor.pointer);
  draggable = Draggable(error: '');
  draggable.dragAnchor;

  // Changes made in https://github.com/flutter/flutter/pull/79160
  LongPressDraggable longPressDraggable = LongPressDraggable();
  longPressDraggable = LongPressDraggable(dragAnchor: DragAnchor.child);
  longPressDraggable = LongPressDraggable(dragAnchor: DragAnchor.pointer);
  longPressDraggable = LongPressDraggable(error: '');
  longPressDraggable.dragAnchor;

  // Changes made in https://github.com/flutter/flutter/pull/64254
  final LeafRenderObjectElement leafElement = LeafRenderObjectElement();
  leafElement.insertChildRenderObject(renderObject, object);
  leafElement.moveChildRenderObject(renderObject, object);
  leafElement.removeChildRenderObject(renderObject);
  final ListWheelElement listWheelElement = ListWheelElement();
  listWheelElement.insertChildRenderObject(renderObject, object);
  listWheelElement.moveChildRenderObject(renderObject, object);
  listWheelElement.removeChildRenderObject(renderObject);
  final MultiChildRenderObjectElement multiChildRenderObjectElement = MultiChildRenderObjectElement();
  multiChildRenderObjectElement.insertChildRenderObject(renderObject, object);
  multiChildRenderObjectElement.moveChildRenderObject(renderObject, object);
  multiChildRenderObjectElement.removeChildRenderObject(renderObject);
  final SingleChildRenderObjectElement singleChildRenderObjectElement = SingleChildRenderObjectElement();
  singleChildRenderObjectElement.insertChildRenderObject(renderObject, object);
  singleChildRenderObjectElement.moveChildRenderObject(renderObject, object);
  singleChildRenderObjectElement.removeChildRenderObject(renderObject);
  final SliverMultiBoxAdaptorElement sliverMultiBoxAdaptorElement = SliverMultiBoxAdaptorElement();
  sliverMultiBoxAdaptorElement.insertChildRenderObject(renderObject, object);
  sliverMultiBoxAdaptorElement.moveChildRenderObject(renderObject, object);
  sliverMultiBoxAdaptorElement.removeChildRenderObject(renderObject);
  final RenderObjectToWidgetElement renderObjectToWidgetElement = RenderObjectToWidgetElement(widget);
  renderObjectToWidgetElement.insertChildRenderObject(renderObject, object);
  renderObjectToWidgetElement.moveChildRenderObject(renderObject, object);
  renderObjectToWidgetElement.removeChildRenderObject(renderObject);

  // Changes made in https://flutter.dev/docs/release/breaking-changes/clip-behavior
  ListWheelScrollView listWheelScrollView = ListWheelScrollView();
  listWheelScrollView = ListWheelScrollView(clipToSize: true);
  listWheelScrollView = ListWheelScrollView(clipToSize: false);
  listWheelScrollView = ListWheelScrollView(error: '');
  listWheelScrollView = ListWheelScrollView.useDelegate();
  listWheelScrollView = ListWheelScrollView.useDelegate(clipToSize: true);
  listWheelScrollView = ListWheelScrollView.useDelegate(clipToSize: false);
  listWheelScrollView = ListWheelScrollView.useDelegate(error: '');
  listWheelScrollView.clipToSize;
  ListWheelViewport listWheelViewport = ListWheelViewport();
  listWheelViewport = ListWheelViewport(clipToSize: true);
  listWheelViewport = ListWheelViewport(clipToSize: false);
  listWheelViewport = ListWheelViewport(error: '');
  listWheelViewport.clipToSize;

  // Changes made in https://github.com/flutter/flutter/pull/87839
  final OverscrollIndicatorNotification notification = OverscrollIndicatorNotification(leading: true);
  final OverscrollIndicatorNotification notification = OverscrollIndicatorNotification(error: '');
  notification.disallowGlow();

  // Changes made in https://github.com/flutter/flutter/pull/96957
  RawScrollbar rawScrollbar = RawScrollbar(isAlwaysShown: true);
  nowShowing = rawScrollbar.isAlwaysShown;

  // Change made in https://github.com/flutter/flutter/pull/100381
  TextSelectionOverlay.fadeDuration;

  // Changes made in https://github.com/flutter/flutter/pull/78588
  final ScrollBehavior scrollBehavior = ScrollBehavior();
  scrollBehavior.buildViewportChrome(context, child, axisDirection);
}