Adds more time to contrast tests (#22681)

examples/flutter_gallery/test/accessibility_test.dart

@@ -255,6 +255,8 @@ void main() {
       final String themeName = themeNames[themeIndex];
 
       testWidgets('backdrop_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: BackdropDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -262,6 +264,8 @@ void main() {
       });
 
       testWidgets('bottom_app_bar_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: BottomAppBarDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -269,6 +273,8 @@ void main() {
       }, skip: true); // https://github.com/flutter/flutter/issues/21651
 
       testWidgets('bottom_navigation_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: BottomNavigationDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -276,6 +282,8 @@ void main() {
       });
 
       testWidgets('buttons_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: ButtonsDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -283,6 +291,8 @@ void main() {
       }, skip: true); // https://github.com/flutter/flutter/issues/21647
 
       testWidgets('cards_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: CardsDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -290,6 +300,8 @@ void main() {
       }, skip: true); // https://github.com/flutter/flutter/issues/21651
 
       testWidgets('chip_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: ChipDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -297,6 +309,8 @@ void main() {
       }, skip: true); // https://github.com/flutter/flutter/issues/21647
 
       testWidgets('data_table_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: DataTableDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -304,6 +318,8 @@ void main() {
       }, skip: true); // https://github.com/flutter/flutter/issues/21647
 
       testWidgets('date_and_time_picker_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: DateAndTimePickerDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -311,6 +327,8 @@ void main() {
       }, skip: true); // https://github.com/flutter/flutter/issues/21647
 
       testWidgets('dialog_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: DialogDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -318,6 +336,8 @@ void main() {
       });
 
       testWidgets('drawer_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: DrawerDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -325,6 +345,8 @@ void main() {
       });
 
       testWidgets('elevation_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: ElevationDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -332,6 +354,8 @@ void main() {
       });
 
       testWidgets('expansion_panels_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: ExpansionPanelsDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -339,6 +363,8 @@ void main() {
       });
 
       testWidgets('grid_list_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: const GridListDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -346,6 +372,8 @@ void main() {
       });
 
       testWidgets('icons_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: IconsDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -353,6 +381,8 @@ void main() {
       }, skip: true); // https://github.com/flutter/flutter/issues/21647
 
       testWidgets('leave_behind_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: const LeaveBehindDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -360,6 +390,8 @@ void main() {
       });
 
       testWidgets('list_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: const ListDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -367,6 +399,8 @@ void main() {
       });
 
       testWidgets('menu_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: const MenuDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -374,6 +408,8 @@ void main() {
       });
 
       testWidgets('modal_bottom_sheet_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: ModalBottomSheetDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -381,6 +417,8 @@ void main() {
       });
 
     testWidgets('overscroll_demo', (WidgetTester tester) async {
+      final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+      binding.addTime(const Duration(seconds: 3));
       final SemanticsHandle handle = tester.ensureSemantics();
       await tester.pumpWidget(const MaterialApp(home: OverscrollDemo()));
       await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -388,6 +426,8 @@ void main() {
     });
 
       testWidgets('page_selector_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: PageSelectorDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -395,6 +435,8 @@ void main() {
       });
 
       testWidgets('persistent_bottom_sheet_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: PersistentBottomSheetDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -402,6 +444,8 @@ void main() {
       });
 
       testWidgets('progress_indicator_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: ProgressIndicatorDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -409,6 +453,8 @@ void main() {
       });
 
       testWidgets('reorderable_list_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: const ReorderableListDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -416,6 +462,8 @@ void main() {
       });
 
       testWidgets('scrollable_tabs_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: ScrollableTabsDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -423,6 +471,8 @@ void main() {
       });
 
       testWidgets('search_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: SearchDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -430,6 +480,8 @@ void main() {
       }, skip: true); // https://github.com/flutter/flutter/issues/21651
 
       testWidgets('selection_controls_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: SelectionControlsDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -437,6 +489,8 @@ void main() {
       });
 
       testWidgets('slider_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: SliderDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -444,6 +498,8 @@ void main() {
       });
 
       testWidgets('snack_bar_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: const SnackBarDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -451,6 +507,8 @@ void main() {
       });
 
       testWidgets('tabs_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: TabsDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -458,6 +516,8 @@ void main() {
       });
 
       testWidgets('tabs_fab_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: TabsFabDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -465,6 +525,8 @@ void main() {
       });
 
       testWidgets('text_form_field_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: const TextFormFieldDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -472,6 +534,8 @@ void main() {
       });
 
       testWidgets('tooltip_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: TooltipDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));
@@ -479,6 +543,8 @@ void main() {
       });
 
       testWidgets('two_level_list_demo $themeName', (WidgetTester tester) async {
+        final AutomatedTestWidgetsFlutterBinding binding = tester.binding;
+        binding.addTime(const Duration(seconds: 3));
         final SemanticsHandle handle = tester.ensureSemantics();
         await tester.pumpWidget(MaterialApp(theme: theme, home: TwoLevelListDemo()));
         await expectLater(tester, meetsGuideline(textContrastGuideline));