Remove unused code from tests (#104550)

packages/flutter/test/foundation/platform_helper.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 'dart:io' show Platform;
-
-/// Returns [Platform.pathSeparator], suitably escaped so as to be usable in a
-/// regular expression.
-String get pathSeparatorForRegExp {
-  switch (Platform.pathSeparator) {
-    case r'/':
-      return r'/';
-    case r'\':
-      return r'\\'; // because dividerRegExp gets inserted into regexps
-    default:
-      throw 'Unsupported platform.';
-  }
-}

packages/flutter/test/foundation/print_test.dart

@@ -8,8 +8,6 @@ import 'package:flutter_test/flutter_test.dart';
 
 import 'capture_output.dart';
 
-String? foo;
-
 void main() {
   test('debugPrint', () {
     expect(

packages/flutter/test/gestures/arena_test.dart

@@ -5,8 +5,6 @@
 import 'package:flutter/gestures.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-typedef GestureArenaCallback = void Function(Object key);
-
 const int primaryKey = 4;
 
 class TestGestureArenaMember extends GestureArenaMember {

packages/flutter/test/gestures/long_press_test.dart

@@ -41,23 +41,6 @@ const PointerDownEvent down3 = PointerDownEvent(
   buttons: kSecondaryButton,
 );
 
-const PointerUpEvent up3 = PointerUpEvent(
-  pointer: 7,
-  position: Offset(31, 29),
-);
-
-// Down/up pair 4: tap sequence with tertiary button
-const PointerDownEvent down4 = PointerDownEvent(
-  pointer: 8,
-  position: Offset(42, 24),
-  buttons: kTertiaryButton,
-);
-
-const PointerUpEvent up4 = PointerUpEvent(
-  pointer: 8,
-  position: Offset(43, 23),
-);
-
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
 

packages/flutter/test/gestures/multitap_test.dart

@@ -7,9 +7,6 @@ import 'package:flutter_test/flutter_test.dart';
 
 import 'gesture_tester.dart';
 
-class TestDrag extends Drag {
-}
-
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
 

packages/flutter/test/material/chip_test.dart

@@ -67,8 +67,6 @@ double getSelectProgress(WidgetTester tester) => getRenderChip(tester)?.checkmar
 double getAvatarDrawerProgress(WidgetTester tester) => getRenderChip(tester)?.avatarDrawerAnimation?.value as double;
 // ignore: avoid_dynamic_calls
 double getDeleteDrawerProgress(WidgetTester tester) => getRenderChip(tester)?.deleteDrawerAnimation?.value as double;
-// ignore: avoid_dynamic_calls
-double getEnableProgress(WidgetTester tester) => getRenderChip(tester)?.enableAnimation?.value as double;
 
 /// Adds the basic requirements for a Chip.
 Widget wrapForChip({

packages/flutter/test/material/chip_theme_test.dart

@@ -27,16 +27,6 @@ Material getMaterial(WidgetTester tester) {
   );
 }
 
-IconThemeData getIconData(WidgetTester tester) {
-  final IconTheme iconTheme = tester.firstWidget(
-    find.descendant(
-      of: find.byType(RawChip),
-      matching: find.byType(IconTheme),
-    ),
-  );
-  return iconTheme.data;
-}
-
 DefaultTextStyle getLabelStyle(WidgetTester tester) {
   return tester.widget(
     find.descendant(

packages/flutter/test/material/dropdown_test.dart

@@ -252,29 +252,6 @@ void checkSelectedItemTextGeometry(WidgetTester tester, String value) {
   expect(box0.size, equals(box1.size));
 }
 
-void verifyPaintedShadow(Finder customPaint, int elevation) {
-  const Rect originalRectangle = Rect.fromLTRB(0.0, 0.0, 800, 208.0);
-
-  final List<BoxShadow> boxShadows = List<BoxShadow>.generate(3, (int index) => kElevationToShadow[elevation]![index]);
-  final List<RRect> rrects = List<RRect>.generate(3, (int index) {
-    return RRect.fromRectAndRadius(
-      originalRectangle.shift(
-        boxShadows[index].offset,
-      ).inflate(boxShadows[index].spreadRadius),
-      const Radius.circular(2.0),
-    );
-  });
-
-  expect(
-    customPaint,
-    paints
-      ..save()
-      ..rrect(rrect: rrects[0], color: boxShadows[0].color, hasMaskFilter: true)
-      ..rrect(rrect: rrects[1], color: boxShadows[1].color, hasMaskFilter: true)
-      ..rrect(rrect: rrects[2], color: boxShadows[2].color, hasMaskFilter: true),
-  );
-}
-
 Future<void> checkDropdownColor(WidgetTester tester, {Color? color, bool isFormField = false }) async {
   const String text = 'foo';
   await tester.pumpWidget(
@@ -325,12 +302,6 @@ Future<void> checkDropdownColor(WidgetTester tester, {Color? color, bool isFormF
   );
 }
 
-bool sameGeometry(RenderBox box1, RenderBox box2) {
-  expect(box1.localToGlobal(Offset.zero), equals(box2.localToGlobal(Offset.zero)));
-  expect(box1.size.height, equals(box2.size.height));
-  return true;
-}
-
 void main() {
   testWidgets('Default dropdown golden', (WidgetTester tester) async {
     final Key buttonKey = UniqueKey();

packages/flutter/test/material/theme_defaults_test.dart

@@ -5,9 +5,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-const ShapeBorder defaultButtonShape = RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(2.0)));
-const EdgeInsets defaultButtonPadding = EdgeInsets.only(left: 16.0, right: 16.0);
-const BoxConstraints defaultButtonConstraints = BoxConstraints(minWidth: 88.0, minHeight: 36.0);
 const Duration defaultButtonDuration = Duration(milliseconds: 200);
 
 void main() {

packages/flutter/test/painting/image_stream_test.dart

@@ -79,24 +79,6 @@ class FakeEventReportingImageStreamCompleter extends ImageStreamCompleter {
   }
 }
 
-class SynchronousTestImageProvider extends ImageProvider<int> {
-  const SynchronousTestImageProvider(this.image);
-
-  final Image image;
-
-  @override
-  Future<int> obtainKey(ImageConfiguration configuration) {
-    return SynchronousFuture<int>(1);
-  }
-
-  @override
-  ImageStreamCompleter load(int key, DecoderCallback decode) {
-    return OneFrameImageStreamCompleter(
-      SynchronousFuture<ImageInfo>(TestImageInfo(key, image: image)),
-    );
-  }
-}
-
 void main() {
   late Image image20x10;
   late Image image200x100;

packages/flutter/test/rendering/editable_test.dart

@@ -13,11 +13,6 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:meta/meta.dart';
-
-// The test_api package is not for general use... it's literally for our use.
-// ignore: deprecated_member_use
-import 'package:test_api/test_api.dart' as test_package;
 
 import 'mock_canvas.dart';
 import 'recording_canvas.dart';
@@ -55,38 +50,6 @@ class _FakeEditableTextState with TextSelectionDelegate {
   void copySelection(SelectionChangedCause cause) { }
 }
 
-@isTest
-void testVariants(
-  String description,
-  AsyncValueGetter<void> callback, {
-  bool? skip,
-  test_package.Timeout? timeout,
-  TestVariant<Object?> variant = const DefaultTestVariant(),
-  dynamic tags,
-}) {
-  assert(variant != null);
-  assert(variant.values.isNotEmpty, 'There must be at least one value to test in the testing variant.');
-  for (final dynamic value in variant.values) {
-    final String variationDescription = variant.describeValue(value);
-    final String combinedDescription = variationDescription.isNotEmpty ? '$description ($variationDescription)' : description;
-    test(
-      combinedDescription,
-      () async {
-        Object? memento;
-        try {
-          memento = await variant.setUp(value);
-          await callback();
-        } finally {
-          await variant.tearDown(value, memento);
-        }
-      },
-      skip: skip, // [intended] just part of the API.
-      timeout: timeout,
-      tags: tags,
-    );
-  }
-}
-
 void main() {
   TestRenderingFlutterBinding.ensureInitialized();
 

packages/flutter/test/widgets/custom_paint_test.dart

@@ -21,21 +21,6 @@ class TestCustomPainter extends CustomPainter {
   bool shouldRepaint(TestCustomPainter oldPainter) => true;
 }
 
-class TestCustomPainterWithCustomSemanticsBuilder extends TestCustomPainter {
-  TestCustomPainterWithCustomSemanticsBuilder() : super(log: <String>[]);
-
-  @override
-  SemanticsBuilderCallback get semanticsBuilder => (Size size) {
-    const Key key = Key('0');
-    const Rect rect = Rect.zero;
-    const SemanticsProperties semanticsProperties = SemanticsProperties();
-    return <CustomPainterSemantics>[
-      const CustomPainterSemantics(key: key, rect: rect, properties: semanticsProperties),
-      const CustomPainterSemantics(key: key, rect: rect, properties: semanticsProperties),
-    ];
-  };
-}
-
 class MockCanvas extends Fake implements Canvas {
   int saveCount = 0;
   int saveCountDelta = 1;

packages/flutter/test/widgets/layout_builder_and_parent_data_test.dart

@@ -41,20 +41,6 @@ class SizeChangerState extends State<SizeChanger> {
   }
 }
 
-class Wrapper extends StatelessWidget {
-  const Wrapper({
-    super.key,
-    required this.child,
-  });
-
-  final Widget child;
-
-  @override
-  Widget build(BuildContext context) {
-    return child;
-  }
-}
-
 void main() {
   testWidgets('Applying parent data inside a LayoutBuilder', (WidgetTester tester) async {
     int frame = 1;

packages/flutter/test/widgets/multichild_test.dart

@@ -31,16 +31,6 @@ void checkTree(WidgetTester tester, List<BoxDecoration> expectedDecorations) {
   }
 }
 
-class MockMultiChildRenderObjectWidget extends MultiChildRenderObjectWidget {
-  MockMultiChildRenderObjectWidget({ super.key, required super.children });
-
-  @override
-  RenderObject createRenderObject(BuildContext context) {
-    assert(false);
-    return FakeRenderObject();
-  }
-}
-
 void main() {
   testWidgets('MultiChildRenderObjectElement control test', (WidgetTester tester) async {
 
@@ -357,13 +347,6 @@ void main() {
   });
 }
 
-class FakeRenderObject extends RenderBox {
-  @override
-  void performLayout() {
-    size = constraints.biggest;
-  }
-}
-
 class DummyWidget extends StatelessWidget {
   const DummyWidget({ super.key, required this.child });
 

packages/flutter/test/widgets/route_notification_messages_test.dart

@@ -29,13 +29,6 @@ class OnTapPage extends StatelessWidget {
   }
 }
 
-Map<String, dynamic> convertRouteInformationToMap(RouteInformation routeInformation) {
-  return <String, dynamic>{
-    'location': routeInformation.location,
-    'state': routeInformation.state,
-  };
-}
-
 void main() {
   testWidgets('Push and Pop should send platform messages', (WidgetTester tester) async {
     final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{

packages/flutter/test/widgets/routes_test.dart

@@ -2296,50 +2296,6 @@ class WidgetWithNoLocalHistoryState extends State<WidgetWithNoLocalHistory> {
   }
 }
 
-class TransitionDetector extends DefaultTransitionDelegate<void> {
-  bool hasTransition = false;
-  @override
-  Iterable<RouteTransitionRecord> resolve({
-    required List<RouteTransitionRecord> newPageRouteHistory,
-    required Map<RouteTransitionRecord?, RouteTransitionRecord> locationToExitingPageRoute,
-    required Map<RouteTransitionRecord?, List<RouteTransitionRecord>> pageRouteToPagelessRoutes,
-  }) {
-    hasTransition = true;
-    return super.resolve(
-      newPageRouteHistory: newPageRouteHistory,
-      locationToExitingPageRoute: locationToExitingPageRoute,
-      pageRouteToPagelessRoutes: pageRouteToPagelessRoutes,
-    );
-  }
-}
-
-Widget buildNavigator({
-  required List<Page<dynamic>> pages,
-  required PopPageCallback onPopPage,
-  GlobalKey<NavigatorState>? key,
-  TransitionDelegate<dynamic>? transitionDelegate,
-}) {
-  return MediaQuery(
-    data: MediaQueryData.fromWindow(WidgetsBinding.instance.window),
-    child: Localizations(
-      locale: const Locale('en', 'US'),
-      delegates: const <LocalizationsDelegate<dynamic>>[
-        DefaultMaterialLocalizations.delegate,
-        DefaultWidgetsLocalizations.delegate,
-      ],
-      child: Directionality(
-        textDirection: TextDirection.ltr,
-        child: Navigator(
-          key: key,
-          pages: pages,
-          onPopPage: onPopPage,
-          transitionDelegate: transitionDelegate ?? const DefaultTransitionDelegate<dynamic>(),
-        ),
-      ),
-    ),
-  );
-}
-
 class _RestorableDialogTestWidget extends StatelessWidget {
   static Route<Object?> _dialogBuilder(BuildContext context, Object? arguments) {
     return RawDialogRoute<void>(

packages/flutter/test/widgets/scrollable_semantics_test.dart

@@ -643,10 +643,6 @@ Future<void> flingUp(WidgetTester tester, { int repetitions = 1 }) => fling(test
 
 Future<void> flingDown(WidgetTester tester, { int repetitions = 1 }) => fling(tester, const Offset(0.0, 200.0), repetitions);
 
-Future<void> flingRight(WidgetTester tester, { int repetitions = 1 }) => fling(tester, const Offset(200.0, 0.0), repetitions);
-
-Future<void> flingLeft(WidgetTester tester, { int repetitions = 1 }) => fling(tester, const Offset(-200.0, 0.0), repetitions);
-
 Future<void> fling(WidgetTester tester, Offset offset, int repetitions) async {
   while (repetitions-- > 0) {
     await tester.fling(find.byType(ListView), offset, 1000.0);

packages/flutter/test/widgets/selectable_region_test.dart

@@ -1041,95 +1041,3 @@ class RenderSelectionSpy extends RenderProxyBox
   @override
   void pushHandleLayers(LayerLink? startHandle, LayerLink? endHandle) { }
 }
-
-
-class TextTextSelectionControls extends TextSelectionControls {
-  static final UniqueKey leftHandle = UniqueKey();
-  static final UniqueKey rightHandle = UniqueKey();
-  static final UniqueKey toolbar = UniqueKey();
-
-  @override
-  Size getHandleSize(double textLineHeight) => Size(textLineHeight, textLineHeight);
-
-  @override
-  Widget buildToolbar(
-      BuildContext context,
-      Rect globalEditableRegion,
-      double textLineHeight,
-      Offset selectionMidpoint,
-      List<TextSelectionPoint> endpoints,
-      TextSelectionDelegate delegate,
-      ClipboardStatusNotifier? clipboardStatus,
-      Offset? lastSecondaryTapDownPosition,
-      ) {
-    return TestToolbar(
-      key: toolbar,
-      globalEditableRegion: globalEditableRegion,
-      textLineHeight: textLineHeight,
-      selectionMidpoint: selectionMidpoint,
-      endpoints: endpoints,
-      delegate: delegate,
-      clipboardStatus: clipboardStatus,
-      lastSecondaryTapDownPosition: lastSecondaryTapDownPosition,
-    );
-  }
-
-  @override
-  Widget buildHandle(BuildContext context, TextSelectionHandleType type, double textHeight, [VoidCallback? onTap]) {
-    return TestHandle(
-      key: type == TextSelectionHandleType.left ? leftHandle : rightHandle,
-      type: type,
-      textHeight: textHeight,
-    );
-  }
-
-  @override
-  Offset getHandleAnchor(TextSelectionHandleType type, double textLineHeight) {
-    return Offset.zero;
-  }
-
-  @override
-  bool canSelectAll(TextSelectionDelegate delegate) => true;
-}
-
-class TestHandle extends StatelessWidget {
-  const TestHandle({
-  super.key,
-  required this.type,
-  required this.textHeight,
-  });
-
-  final TextSelectionHandleType type;
-  final double textHeight;
-
-  @override
-  Widget build(BuildContext context) {
-    return SizedBox(width: textHeight, height: textHeight);
-  }
-}
-
-class TestToolbar extends StatelessWidget {
-  const TestToolbar({
-  super.key,
-  required this.globalEditableRegion,
-  required this.textLineHeight,
-  required this.selectionMidpoint,
-  required this.endpoints,
-  required this.delegate,
-  required this.clipboardStatus,
-  required this.lastSecondaryTapDownPosition,
-  });
-
-  final Rect globalEditableRegion;
-  final double textLineHeight;
-  final Offset selectionMidpoint;
-  final List<TextSelectionPoint> endpoints;
-  final TextSelectionDelegate delegate;
-  final ClipboardStatusNotifier? clipboardStatus;
-  final Offset? lastSecondaryTapDownPosition;
-
-  @override
-  Widget build(BuildContext context) {
-    return SizedBox(width: textLineHeight, height: textLineHeight);
-  }
-}

packages/flutter/test/widgets/selectable_text_test.dart

@@ -103,15 +103,6 @@ Future<void> skipPastScrollingAnimation(WidgetTester tester) async {
   await tester.pump(const Duration(milliseconds: 200));
 }
 
-double getOpacity(WidgetTester tester, Finder finder) {
-  return tester.widget<FadeTransition>(
-      find.ancestor(
-        of: finder,
-        matching: find.byType(FadeTransition),
-      ),
-  ).opacity.value;
-}
-
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
   final MockClipboard mockClipboard = MockClipboard();

packages/flutter/test/widgets/shortcuts_test.dart

@@ -1737,8 +1737,6 @@ class _TestCallbackRegistrationState extends State<TestCallbackRegistration> {
   }
 }
 
-typedef PostInvokeCallback = void Function({Action<Intent> action, Intent intent, BuildContext? context, ActionDispatcher dispatcher});
-
 class TestAction extends CallbackAction<Intent> {
   TestAction({
     required super.onInvoke,
@@ -1747,19 +1745,6 @@ class TestAction extends CallbackAction<Intent> {
   static const LocalKey key = ValueKey<Type>(TestAction);
 }
 
-class TestDispatcher extends ActionDispatcher {
-  const TestDispatcher({this.postInvoke});
-
-  final PostInvokeCallback? postInvoke;
-
-  @override
-  Object? invokeAction(Action<TestIntent> action, Intent intent, [BuildContext? context]) {
-    final Object? result = super.invokeAction(action, intent, context);
-    postInvoke?.call(action: action, intent: intent, context: context, dispatcher: this);
-    return result;
-  }
-}
-
 /// An activator that accepts down events that has [key] as the logical key.
 ///
 /// This class is used only to tests. It is intentionally designed poorly by

packages/flutter/test/widgets/slivers_evil_test.dart

@@ -56,21 +56,6 @@ class TestScrollPhysics extends ClampingScrollPhysics {
   Tolerance get tolerance => const Tolerance(velocity: 20.0, distance: 1.0);
 }
 
-class TestViewportScrollPosition extends ScrollPositionWithSingleContext {
-  TestViewportScrollPosition({
-    required super.physics,
-    required super.context,
-    super.oldPosition,
-  });
-
-  @override
-  bool applyContentDimensions(double minScrollExtent, double maxScrollExtent) {
-    expect(minScrollExtent, moreOrLessEquals(-3895.0));
-    expect(maxScrollExtent, moreOrLessEquals(8575.0));
-    return super.applyContentDimensions(minScrollExtent, maxScrollExtent);
-  }
-}
-
 void main() {
   testWidgets('Evil test of sliver features - 1', (WidgetTester tester) async {
     final GlobalKey centerKey = GlobalKey();

packages/flutter/test/widgets/text_selection_test.dart

@@ -1426,37 +1426,6 @@ class FakeRenderEditable extends RenderEditable {
   bool hasFocus = false;
 }
 
-class CustomTextSelectionControls extends TextSelectionControls {
-  @override
-  Widget buildHandle(BuildContext context, TextSelectionHandleType type, double textLineHeight, [VoidCallback? onTap]) {
-    throw UnimplementedError();
-  }
-
-  @override
-  Widget buildToolbar(
-    BuildContext context,
-    Rect globalEditableRegion,
-    double textLineHeight,
-    Offset position,
-    List<TextSelectionPoint> endpoints,
-    TextSelectionDelegate delegate,
-    ClipboardStatusNotifier? clipboardStatus,
-    Offset? lastSecondaryTapDownPosition,
-  ) {
-    throw UnimplementedError();
-  }
-
-  @override
-  Offset getHandleAnchor(TextSelectionHandleType type, double textLineHeight) {
-    throw UnimplementedError();
-  }
-
-  @override
-  Size getHandleSize(double textLineHeight) {
-    throw UnimplementedError();
-  }
-}
-
 class TextSelectionControlsSpy extends TextSelectionControls {
   UniqueKey leftHandleKey = UniqueKey();
   UniqueKey rightHandleKey = UniqueKey();

packages/flutter/test/widgets/widget_inspector_test.dart

@@ -14,7 +14,6 @@
 
 @TestOn('!chrome')
 
-import 'dart:async';
 import 'dart:convert';
 import 'dart:math';
 import 'dart:ui' as ui;
@@ -160,8 +159,6 @@ class _CreationLocation {
   String? name;
 }
 
-typedef InspectorServiceExtensionCallback = FutureOr<Map<String, Object>> Function(Map<String, String> parameters);
-
 class RenderRepaintBoundaryWithDebugPaint extends RenderRepaintBoundary {
   @override
   void debugPaintSize(PaintingContext context, Offset offset) {
@@ -1999,7 +1996,7 @@ class _TestWidgetInspectorService extends TestWidgetInspectorService {
       _CreationLocation location = knownLocations[id]!;
       expect(location.file, equals(file));
       // ClockText widget.
-      expect(location.line, equals(64));
+      expect(location.line, equals(63));
       expect(location.column, equals(9));
       expect(location.name, equals('ClockText'));
       expect(count, equals(1));
@@ -2009,7 +2006,7 @@ class _TestWidgetInspectorService extends TestWidgetInspectorService {
       location = knownLocations[id]!;
       expect(location.file, equals(file));
       // Text widget in _ClockTextState build method.
-      expect(location.line, equals(102));
+      expect(location.line, equals(101));
       expect(location.column, equals(12));
       expect(location.name, equals('Text'));
       expect(count, equals(1));
@@ -2036,7 +2033,7 @@ class _TestWidgetInspectorService extends TestWidgetInspectorService {
       location = knownLocations[id]!;
       expect(location.file, equals(file));
       // ClockText widget.
-      expect(location.line, equals(64));
+      expect(location.line, equals(63));
       expect(location.column, equals(9));
       expect(location.name, equals('ClockText'));
       expect(count, equals(3)); // 3 clock widget instances rebuilt.
@@ -2046,7 +2043,7 @@ class _TestWidgetInspectorService extends TestWidgetInspectorService {
       location = knownLocations[id]!;
       expect(location.file, equals(file));
       // Text widget in _ClockTextState build method.
-      expect(location.line, equals(102));
+      expect(location.line, equals(101));
       expect(location.column, equals(12));
       expect(location.name, equals('Text'));
       expect(count, equals(3)); // 3 clock widget instances rebuilt.