Disable most screenshot tests for web until we understand the flakes. (#47554)

packages/flutter/test/material/bottom_app_bar_theme_test.dart

@@ -82,7 +82,7 @@ void main() {
       find.byKey(_painterKey),
       matchesGoldenFile('bottom_app_bar_theme.custom_shape.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('BAB theme does not affect defaults', (WidgetTester tester) async {
     await tester.pumpWidget(const MaterialApp(

packages/flutter/test/material/bottom_navigation_bar_test.dart

@@ -891,7 +891,7 @@ void main() {
     await tester.tap(find.text('Alarm'));
     await tester.pump(const Duration(seconds: 1));
     expect(Theme.of(tester.element(find.text('Alarm'))).brightness, equals(Brightness.dark));
-  });
+  }, skip: isBrowser);
 
   testWidgets('BottomNavigationBar iconSize test', (WidgetTester tester) async {
     double builderIconSize;
@@ -1001,7 +1001,7 @@ void main() {
 
     final RenderBox box = tester.renderObject(find.byType(BottomNavigationBar));
     expect(box.size.height, equals(66.0));
-  });
+  }, skip: isBrowser);
 
   testWidgets('BottomNavigationBar limits width of tiles with long titles', (WidgetTester tester) async {
     final Text longTextA = Text(''.padLeft(100, 'A'));
@@ -1033,7 +1033,7 @@ void main() {
     expect(itemBoxA.size, equals(const Size(400.0, 14.0)));
     final RenderBox itemBoxB = tester.renderObject(find.text(longTextB.data));
     expect(itemBoxB.size, equals(const Size(400.0, 14.0)));
-  });
+  }, skip: isBrowser);
 
   testWidgets('BottomNavigationBar paints circles', (WidgetTester tester) async {
     await tester.pumpWidget(
@@ -1103,7 +1103,7 @@ void main() {
           ..translate(x: 400.0)
           ..circle(x: 200.0),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('BottomNavigationBar inactiveIcon shown', (WidgetTester tester) async {
     const Key filled = Key('filled');
@@ -1429,7 +1429,7 @@ void main() {
         matchesGoldenFile('bottom_navigation_bar.shifting_transition.$pump.png'),
       );
     }
-  });
+  }, skip: isBrowser);
 
   testWidgets('BottomNavigationBar item title should not be nullable', (WidgetTester tester) async {
     expect(() {

packages/flutter/test/material/dialog_theme_test.dart

@@ -132,7 +132,7 @@ void main() {
       find.byKey(_painterKey),
       matchesGoldenFile('dialog_theme.dialog_with_custom_border.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('Custom Title Text Style - Constructor Param', (WidgetTester tester) async {
     const String titleText = 'Title';

packages/flutter/test/material/dropdown_test.dart

@@ -182,7 +182,7 @@ void main() {
       find.ancestor(of: buttonFinder, matching: find.byType(RepaintBoundary)).first,
       matchesGoldenFile('dropdown_test.default.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('Expanded dropdown golden', (WidgetTester tester) async {
     final Key buttonKey = UniqueKey();
@@ -194,7 +194,7 @@ void main() {
       find.ancestor(of: buttonFinder, matching: find.byType(RepaintBoundary)).first,
       matchesGoldenFile('dropdown_test.expanded.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('Dropdown button control test', (WidgetTester tester) async {
     String value = 'one';

packages/flutter/test/material/flexible_space_bar_stretch_mode_test.dart

@@ -85,7 +85,7 @@ void main() {
       find.byType(FlexibleSpaceBar),
       matchesGoldenFile('flexible_space_bar_stretch_mode.blur_background.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('FlexibleSpaceBar stretch mode fadeTitle', (WidgetTester tester) async {
     await tester.pumpWidget(

packages/flutter/test/material/radio_test.dart

@@ -282,7 +282,7 @@ void main() {
       find.byKey(painterKey),
       matchesGoldenFile('radio.ink_ripple.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('Radio is focusable and has correct focus color', (WidgetTester tester) async {
     final FocusNode focusNode = FocusNode(debugLabel: 'Radio');

packages/flutter/test/material/tab_bar_theme_test.dart

@@ -269,7 +269,7 @@ void main() {
       find.byKey(_painterKey),
       matchesGoldenFile('tab_bar_theme.tab_indicator_size_tab.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('Tab bar theme overrides tab indicator size (label)', (WidgetTester tester) async {
     const TabBarTheme tabBarTheme = TabBarTheme(indicatorSize: TabBarIndicatorSize.label);
@@ -280,7 +280,7 @@ void main() {
       find.byKey(_painterKey),
       matchesGoldenFile('tab_bar_theme.tab_indicator_size_label.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('Tab bar theme - custom tab indicator', (WidgetTester tester) async {
     final TabBarTheme tabBarTheme = TabBarTheme(
@@ -296,7 +296,7 @@ void main() {
       find.byKey(_painterKey),
       matchesGoldenFile('tab_bar_theme.custom_tab_indicator.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('Tab bar theme - beveled rect indicator', (WidgetTester tester) async {
     final TabBarTheme tabBarTheme = TabBarTheme(
@@ -312,5 +312,5 @@ void main() {
       find.byKey(_painterKey),
       matchesGoldenFile('tab_bar_theme.beveled_rect_indicator.png'),
     );
-  });
+  }, skip: isBrowser);
 }

packages/flutter/test/material/text_field_test.dart

@@ -494,7 +494,7 @@ void main() {
       find.byType(Overlay),
       matchesGoldenFile('text_field_opacity_test.0.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('text field toolbar options correctly changes options (iOS)',
       (WidgetTester tester) async {
@@ -544,7 +544,7 @@ void main() {
     expect(find.text('Copy'), findsOneWidget);
     expect(find.text('Cut'), findsNothing);
     expect(find.text('Select All'), findsNothing);
-  });
+  }, skip: isBrowser);
 
   testWidgets('text field toolbar options correctly changes options (Android)',
       (WidgetTester tester) async {
@@ -577,7 +577,7 @@ void main() {
     expect(find.text('COPY'), findsOneWidget);
     expect(find.text('CUT'), findsNothing);
     expect(find.text('SELECT ALL'), findsNothing);
-  });
+  }, skip: isBrowser);
 
   // TODO(hansmuller): restore these tests after the fix for #24876 has landed.
   /*
@@ -2853,7 +2853,7 @@ void main() {
     // and the left edge of the input and label.
     expect(iconRight + 28.0, equals(tester.getTopLeft(find.text('label')).dx));
     expect(iconRight + 28.0, equals(tester.getTopLeft(find.byType(EditableText)).dx));
-  });
+  }, skip: isBrowser);
 
   testWidgets('Collapsed hint text placement', (WidgetTester tester) async {
     await tester.pumpWidget(

packages/flutter/test/rendering/localized_fonts_test.dart

@@ -52,6 +52,7 @@ void main() {
         matchesGoldenFile('localized_fonts.rich_text.styled_text_span.png'),
       );
     },
+    skip: isBrowser, // TODO(yjbanov): implement goldens on the Web: https://github.com/flutter/flutter/issues/40297
   );
 
   testWidgets(
@@ -103,6 +104,7 @@ void main() {
         matchesGoldenFile('localized_fonts.text_ambient_locale.chars.png'),
       );
     },
+    skip: isBrowser, // TODO(yjbanov): implement goldens on the Web: https://github.com/flutter/flutter/issues/40297
   );
 
   testWidgets(
@@ -146,6 +148,7 @@ void main() {
         matchesGoldenFile('localized_fonts.text_explicit_locale.chars.png'),
       );
     },
+    skip: isBrowser, // TODO(yjbanov): implement goldens on the Web: https://github.com/flutter/flutter/issues/40297
   );
 
 }

packages/flutter/test/widgets/backdrop_filter_test.dart

@@ -45,5 +45,5 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('backdrop_filter_test.cull_rect.png'),
     );
-  });
+  }, skip: isBrowser);
 }

packages/flutter/test/widgets/clip_test.dart

@@ -383,7 +383,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.ClipRect.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('ClipRect save, overlay, and antialiasing', (WidgetTester tester) async {
     await tester.pumpWidget(
@@ -423,7 +423,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.ClipRectOverlay.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('ClipRRect painting', (WidgetTester tester) async {
     await tester.pumpWidget(
@@ -472,7 +472,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.ClipRRect.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('ClipOval painting', (WidgetTester tester) async {
     await tester.pumpWidget(
@@ -515,7 +515,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.ClipOval.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('ClipPath painting', (WidgetTester tester) async {
     await tester.pumpWidget(
@@ -563,7 +563,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.ClipPath.png'),
     );
-  });
+  }, skip: isBrowser);
 
   Center genPhysicalModel(Clip clipBehavior) {
     return Center(
@@ -608,7 +608,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.PhysicalModel.antiAlias.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('PhysicalModel painting with Clip.hardEdge', (WidgetTester tester) async {
     await tester.pumpWidget(genPhysicalModel(Clip.hardEdge));
@@ -616,7 +616,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.PhysicalModel.hardEdge.png'),
     );
-  });
+  }, skip: isBrowser);
 
   // There will be bleeding edges on the rect edges, but there shouldn't be any bleeding edges on the
   // round corners.
@@ -626,7 +626,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.PhysicalModel.antiAliasWithSaveLayer.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('Default PhysicalModel painting', (WidgetTester tester) async {
     await tester.pumpWidget(
@@ -668,7 +668,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.PhysicalModel.default.png'),
     );
-  });
+  }, skip: isBrowser);
 
   Center genPhysicalShape(Clip clipBehavior) {
     return Center(
@@ -717,7 +717,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.PhysicalShape.antiAlias.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('PhysicalShape painting with Clip.hardEdge', (WidgetTester tester) async {
     await tester.pumpWidget(genPhysicalShape(Clip.hardEdge));
@@ -725,7 +725,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.PhysicalShape.hardEdge.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('PhysicalShape painting with Clip.antiAliasWithSaveLayer', (WidgetTester tester) async {
     await tester.pumpWidget(genPhysicalShape(Clip.antiAliasWithSaveLayer));
@@ -733,7 +733,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.PhysicalShape.antiAliasWithSaveLayer.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('PhysicalShape painting', (WidgetTester tester) async {
     await tester.pumpWidget(
@@ -779,7 +779,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('clip.PhysicalShape.default.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('ClipPath.shape', (WidgetTester tester) async {
     final List<String> logs = <String>[];

packages/flutter/test/widgets/invert_colors_test.dart

@@ -22,7 +22,7 @@ void main() {
       find.byType(RepaintBoundary),
       matchesGoldenFile('invert_colors_test.0.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('InvertColors and ColorFilter',  (WidgetTester tester) async {
     await tester.pumpWidget(const RepaintBoundary(
@@ -40,7 +40,7 @@ void main() {
       find.byType(RepaintBoundary),
       matchesGoldenFile('invert_colors_test.1.png'),
     );
-  });
+  }, skip: isBrowser);
 }
 
 // Draws a rectangle sized by the parent widget with [color], [colorFilter],

packages/flutter/test/widgets/list_wheel_scroll_view_test.dart

@@ -537,7 +537,7 @@ void main() {
         find.byKey(const Key('list_wheel_scroll_view')),
         matchesGoldenFile('list_wheel_scroll_view.center_child.magnified.png'),
       );
-    });
+    }, skip: isBrowser);
 
     testWidgets('Default middle transform', (WidgetTester tester) async {
       await tester.pumpWidget(
@@ -591,7 +591,7 @@ void main() {
         find.byKey(const Key('list_wheel_scroll_view')),
         matchesGoldenFile('list_wheel_scroll_view.curved_wheel.left.png'),
       );
-    });
+    }, skip: isBrowser);
 
     testWidgets('Scrolling, diameterRatio, perspective all changes matrix', (WidgetTester tester) async {
       final ScrollController controller = ScrollController(initialScrollOffset: 200.0);

packages/flutter/test/widgets/opacity_test.dart

@@ -180,7 +180,7 @@ void main() {
       find.byType(RepaintBoundary).first,
       matchesGoldenFile('opacity_test.offset.png'),
     );
-  });
+  }, skip: isBrowser);
 
   testWidgets('empty opacity does not crash', (WidgetTester tester) async {
     await tester.pumpWidget(
@@ -191,5 +191,5 @@ void main() {
     // empty opacity layer is sent.
     final OffsetLayer offsetLayer = element.renderObject.debugLayer as OffsetLayer;
     await offsetLayer.toImage(const Rect.fromLTRB(0.0, 0.0, 1.0, 1.0));
-  }, skip: isBrowser); // `Layer.toImage()` doesn't work on web
+  }, skip: isBrowser);
 }

packages/flutter/test/widgets/physical_model_test.dart

@@ -112,7 +112,7 @@ void main() {
       find.byKey(key),
       matchesGoldenFile('physical_model_overflow.png'),
     );
-  });
+  }, skip: isBrowser);
 
   group('PhysicalModelLayer checks elevation', () {
     Future<void> _testStackChildren(