Enable avoid_escaping_inner_quotes lint (#81153)

analysis_options.yaml

@@ -64,7 +64,7 @@ linter:
     # - avoid_dynamic_calls # not yet tested
     - avoid_empty_else
     - avoid_equals_and_hash_code_on_mutable_classes
-    # - avoid_escaping_inner_quotes # not yet tested
+    - avoid_escaping_inner_quotes
     - avoid_field_initializers_in_const_classes
     - avoid_function_literals_in_foreach_calls
     # - avoid_implementing_value_types # not yet tested

dev/benchmarks/platform_channels_benchmarks/lib/main.dart

@@ -74,7 +74,7 @@ Future<double> _runBasicStandardLarge(BasicMessageChannel<Object> basicStandard,
 
   if (size != largeBuffer.length * count) {
     throw Exception(
-      'There is an error with the echo channel, the results don\'t add up: $size',
+      "There is an error with the echo channel, the results don't add up: $size",
     );
   }
 
@@ -94,7 +94,7 @@ Future<double> _runBasicBinary(BasicMessageChannel<ByteData> basicBinary,
   watch.stop();
   if (size != buffer.lengthInBytes * count) {
     throw Exception(
-      'There is an error with the echo channel, the results don\'t add up: $size',
+      "There is an error with the echo channel, the results don't add up: $size",
     );
   }
 

dev/bots/test/analyze_sample_code_test.dart

@@ -27,23 +27,23 @@ void main() {
       'In sample starting at dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:117:bool? _visible = true;',
       '>>> info: Use late for private members with non-nullable type (use_late_for_private_fields_and_variables)',
       'In sample starting at dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:117:      child: Text(title),',
-      '>>> error: The final variable \'title\' can\'t be read because it is potentially unassigned at this point (read_potentially_unassigned_final)',
+      ">>> error: The final variable 'title' can't be read because it is potentially unassigned at this point (read_potentially_unassigned_final)",
       'dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:30:9: new Opacity(',
       '>>> info: Unnecessary new keyword (unnecessary_new)',
       'dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:62:9: new Opacity(',
       '>>> info: Unnecessary new keyword (unnecessary_new)',
-      'dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:95:9: const text0 = Text(\'Poor wandering ones!\');',
+      "dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:95:9: const text0 = Text('Poor wandering ones!');",
       '>>> info: Specify type annotations (always_specify_types)',
-      'dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:103:9: const text1 = _Text(\'Poor wandering ones!\');',
+      "dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:103:9: const text1 = _Text('Poor wandering ones!');",
       '>>> info: Specify type annotations (always_specify_types)',
-      'dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:111:9: final String? bar = \'Hello\';',
+      "dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:111:9: final String? bar = 'Hello';",
       '>>> info: Prefer const over final for declarations (prefer_const_declarations)',
-      'dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:111:23: final String? bar = \'Hello\';',
+      "dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:111:23: final String? bar = 'Hello';",
       '>>> info: Use a non-nullable type for a final variable initialized with a non-nullable value (unnecessary_nullable_for_final_variable_declarations)',
       'dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:112:9: final int foo = null;',
       '>>> info: Prefer const over final for declarations (prefer_const_declarations)',
       'dev/bots/test/analyze-sample-code-test-input/known_broken_documentation.dart:112:25: final int foo = null;',
-      '>>> error: A value of type \'Null\' can\'t be assigned to a variable of type \'int\' (invalid_assignment)',
+      ">>> error: A value of type 'Null' can't be assigned to a variable of type 'int' (invalid_assignment)",
       '',
       'Found 2 sample code errors.',
       ''

dev/devicelab/bin/tasks/build_aar_module_test.dart

@@ -48,7 +48,7 @@ Future<void> main() async {
         );
       });
 
-      section('Create plugin that doesn\'t support android project');
+      section("Create plugin that doesn't support android project");
 
       await inDirectory(tempDir, () async {
         await flutter(

dev/devicelab/bin/tasks/gradle_desugar_classes_test.dart

@@ -26,7 +26,7 @@ Future<void> main() async {
           ]);
           final File apk = File('${flutterProject.rootPath}/build/app/outputs/flutter-apk/app-debug.apk');
           if (!apk.existsSync()) {
-            throw TaskResult.failure('Expected ${apk.path} to exist, but it doesn\'t');
+            throw TaskResult.failure("Expected ${apk.path} to exist, but it doesn't");
           }
           // https://github.com/flutter/flutter/issues/72185
           await checkApkContainsMethods(apk, <String>[

dev/devicelab/bin/tasks/gradle_java8_compile_test.dart

@@ -33,7 +33,7 @@ Future<void> main() async {
         );
 
         if (!pluginMainKotlinFile.existsSync()) {
-          throw TaskResult.failure('Expected ${pluginMainKotlinFile.path} to exist, but it doesn\'t');
+          throw TaskResult.failure("Expected ${pluginMainKotlinFile.path} to exist, but it doesn't");
         }
 
         section('add java 8 feature');

dev/devicelab/lib/framework/browser.dart

@@ -292,7 +292,7 @@ class BlinkTraceSummary {
       Exception noMeasuredFramesFound() => Exception(
         'No measured frames found in benchmark tracing data. This likely '
         'indicates a bug in the benchmark. For example, the benchmark failed '
-        'to pump enough frames. It may also indicate a change in Chrome\'s '
+        "to pump enough frames. It may also indicate a change in Chrome's "
         'tracing data format. Check if Chrome version changed recently and '
         'adjust the parsing code accordingly.',
       );

dev/tools/lib/codesign.dart

@@ -56,7 +56,7 @@ class CodesignCommand extends Command<void> {
     argParser.addOption(
       kUpstream,
       defaultsTo: FrameworkRepository.defaultUpstream,
-      help: 'The git remote URL to use as the Flutter framework\'s upstream.',
+      help: "The git remote URL to use as the Flutter framework's upstream.",
     );
     argParser.addOption(
       kRevision,

dev/tools/lib/repository.dart

@@ -377,7 +377,7 @@ abstract class Repository {
         'commit',
         '--allow-empty',
         '-m',
-        '\'$message\'',
+        "'$message'",
       ],
       'create an empty commit',
       workingDirectory: checkoutDirectory.path,

packages/flutter/lib/src/material/date_picker.dart

@@ -1057,7 +1057,7 @@ Future<DateTimeRange?> showDateRangePicker({
   );
   assert(
     initialDateRange == null || !initialDateRange.start.isAfter(initialDateRange.end),
-    'initialDateRange\'s start date must not be after it\'s end date.',
+    "initialDateRange's start date must not be after it's end date.",
   );
   initialDateRange = initialDateRange == null ? null : DateUtils.datesOnly(initialDateRange);
   assert(firstDate != null);
@@ -1070,19 +1070,19 @@ Future<DateTimeRange?> showDateRangePicker({
   );
   assert(
     initialDateRange == null || !initialDateRange.start.isBefore(firstDate),
-    'initialDateRange\'s start date must be on or after firstDate $firstDate.',
+    "initialDateRange's start date must be on or after firstDate $firstDate.",
   );
   assert(
     initialDateRange == null || !initialDateRange.end.isBefore(firstDate),
-    'initialDateRange\'s end date must be on or after firstDate $firstDate.',
+    "initialDateRange's end date must be on or after firstDate $firstDate.",
   );
   assert(
     initialDateRange == null || !initialDateRange.start.isAfter(lastDate),
-    'initialDateRange\'s start date must be on or before lastDate $lastDate.',
+    "initialDateRange's start date must be on or before lastDate $lastDate.",
   );
   assert(
     initialDateRange == null || !initialDateRange.end.isAfter(lastDate),
-    'initialDateRange\'s end date must be on or before lastDate $lastDate.',
+    "initialDateRange's end date must be on or before lastDate $lastDate.",
   );
   currentDate = DateUtils.dateOnly(currentDate ?? DateTime.now());
   assert(initialEntryMode != null);

packages/flutter/lib/src/material/selectable_text.dart

@@ -204,7 +204,7 @@ class SelectableText extends StatefulWidget {
         assert(minLines == null || minLines > 0),
         assert(
           (maxLines == null) || (minLines == null) || (maxLines >= minLines),
-          'minLines can\'t be greater than maxLines',
+          "minLines can't be greater than maxLines",
         ),
         assert(
           data != null,
@@ -257,7 +257,7 @@ class SelectableText extends StatefulWidget {
     assert(minLines == null || minLines > 0),
     assert(
       (maxLines == null) || (minLines == null) || (maxLines >= minLines),
-      'minLines can\'t be greater than maxLines',
+      "minLines can't be greater than maxLines",
     ),
     assert(
       textSpan != null,

packages/flutter/lib/src/material/tabs.dart

@@ -606,13 +606,13 @@ class _TabBarScrollController extends ScrollController {
 ///       body: const TabBarView(
 ///         children: <Widget>[
 ///           Center(
-///             child: Text('It\'s cloudy here'),
+///             child: Text("It's cloudy here"),
 ///           ),
 ///           Center(
-///             child: Text('It\'s rainy here'),
+///             child: Text("It's rainy here"),
 ///           ),
 ///           Center(
-///             child: Text('It\'s sunny here'),
+///             child: Text("It's sunny here"),
 ///           ),
 ///         ],
 ///       ),
@@ -661,13 +661,13 @@ class _TabBarScrollController extends ScrollController {
 ///        controller: _tabController,
 ///        children: const <Widget>[
 ///          Center(
-///            child: Text('It\'s cloudy here'),
+///            child: Text("It's cloudy here"),
 ///          ),
 ///          Center(
-///            child: Text('It\'s rainy here'),
+///            child: Text("It's rainy here"),
 ///          ),
 ///          Center(
-///             child: Text('It\'s sunny here'),
+///             child: Text("It's sunny here"),
 ///          ),
 ///        ],
 ///      ),

packages/flutter/lib/src/rendering/box.dart

@@ -1941,7 +1941,7 @@ abstract class RenderBox extends RenderObject {
             'otherwise, the only object that is allowed to read RenderBox.size '
             'is its parent, if they have said they will. It you hit this assert '
             'trying to access a child\'s size, pass "parentUsesSize: true" to '
-            'that child\'s layout().',
+            "that child's layout().",
           );
         }
         assert(_size == this._size);

packages/flutter/lib/src/rendering/proxy_box.dart

@@ -501,7 +501,7 @@ class RenderAspectRatio extends RenderProxyBox {
           '$runtimeType has unbounded constraints.\n'
           'This $runtimeType was given an aspect ratio of $aspectRatio but was given '
           'both unbounded width and unbounded height constraints. Because both '
-          'constraints were unbounded, this render object doesn\'t know how much '
+          "constraints were unbounded, this render object doesn't know how much "
           'size to consume.',
         );
       }

packages/flutter/lib/src/widgets/autocomplete.dart

@@ -372,7 +372,7 @@ typedef AutocompleteOptionToString<T extends Object> = String Function(T option)
 ///             ),
 ///             validator: (String? value) {
 ///               if (value == null || value.isEmpty) {
-///                 return 'Can\'t be empty.';
+///                 return "Can't be empty.";
 ///               }
 ///               return null;
 ///             },

packages/flutter/lib/src/widgets/basic.dart

@@ -3852,9 +3852,9 @@ class Stack extends MultiChildRenderObjectWidget {
     if (alignment is AlignmentDirectional && textDirection == null) {
       assert(debugCheckHasDirectionality(
         context,
-        why: 'to resolve the \'alignment\' argument',
+        why: "to resolve the 'alignment' argument",
-        hint: alignment == AlignmentDirectional.topStart ? 'The default value for \'alignment\' is AlignmentDirectional.topStart, which requires a text direction.' : null,
+        hint: alignment == AlignmentDirectional.topStart ? "The default value for 'alignment' is AlignmentDirectional.topStart, which requires a text direction." : null,
-        alternative: 'Instead of providing a Directionality widget, another solution would be passing a non-directional \'alignment\', or an explicit \'textDirection\', to the $runtimeType.',
+        alternative: "Instead of providing a Directionality widget, another solution would be passing a non-directional 'alignment', or an explicit 'textDirection', to the $runtimeType.",
       ));
     }
     return true;

packages/flutter/lib/src/widgets/navigator.dart

@@ -3464,7 +3464,7 @@ class NavigatorState extends State<Navigator> with TickerProviderStateMixin, Res
       'All routes returned by onGenerateInitialRoutes are not restorable. '
       'Please make sure that all routes returned by onGenerateInitialRoutes '
       'have their RouteSettings defined with names that are defined in the '
-      'app\'s routes table.',
+      "app's routes table.",
     );
     assert(!_debugLocked);
     assert(() { _debugLocked = true; return true; }());

packages/flutter/lib/src/widgets/scroll_position.dart

@@ -254,7 +254,7 @@ abstract class ScrollPosition extends ViewportOffset with ScrollMetrics {
   /// If there is any overscroll, it is reported using [didOverscrollBy].
   double setPixels(double newPixels) {
     assert(hasPixels);
-    assert(SchedulerBinding.instance!.schedulerPhase != SchedulerPhase.persistentCallbacks, 'A scrollable\'s position should not change during the build, layout, and paint phases, otherwise the rendering will be confused.');
+    assert(SchedulerBinding.instance!.schedulerPhase != SchedulerPhase.persistentCallbacks, "A scrollable's position should not change during the build, layout, and paint phases, otherwise the rendering will be confused.");
     if (newPixels != pixels) {
       final double overscroll = applyBoundaryConditions(newPixels);
       assert(() {

packages/flutter/lib/src/widgets/scrollbar.dart

@@ -972,7 +972,7 @@ class RawScrollbarState<T extends RawScrollbar> extends State<T> with TickerProv
           if (!scrollController!.hasClients) {
             throw FlutterError.fromParts(<DiagnosticsNode>[
               ErrorSummary(
-                'The Scrollbar\'s ScrollController has no ScrollPosition attached.',
+                "The Scrollbar's ScrollController has no ScrollPosition attached.",
               ),
               ErrorDescription(
                 'A Scrollbar cannot be painted without a ScrollPosition. ',

packages/flutter/lib/src/widgets/sliver.dart

@@ -1352,7 +1352,7 @@ class SliverMultiBoxAdaptorElement extends RenderObjectElement implements Render
         } else {
           throw FlutterError(
             'Could not find the number of children in ${widget.delegate}.\n'
-            'The childCount getter was called (implying that the delegate\'s builder returned null '
+            "The childCount getter was called (implying that the delegate's builder returned null "
             'for a positive index), but even building the child with index $hi (the maximum '
             'possible integer) did not return null. Consider implementing childCount to avoid '
             'the cost of searching for the final child.',

packages/flutter/lib/src/widgets/viewport.dart

@@ -144,8 +144,8 @@ class Viewport extends MultiChildRenderObjectWidget {
       case AxisDirection.up:
         assert(debugCheckHasDirectionality(
           context,
-          why: 'to determine the cross-axis direction when the viewport has an \'up\' axisDirection',
+          why: "to determine the cross-axis direction when the viewport has an 'up' axisDirection",
-          alternative: 'Alternatively, consider specifying the \'crossAxisDirection\' argument on the Viewport.',
+          alternative: "Alternatively, consider specifying the 'crossAxisDirection' argument on the Viewport.",
         ));
         return textDirectionToAxisDirection(Directionality.of(context));
       case AxisDirection.right:
@@ -153,8 +153,8 @@ class Viewport extends MultiChildRenderObjectWidget {
       case AxisDirection.down:
         assert(debugCheckHasDirectionality(
           context,
-          why: 'to determine the cross-axis direction when the viewport has a \'down\' axisDirection',
+          why: "to determine the cross-axis direction when the viewport has a 'down' axisDirection",
-          alternative: 'Alternatively, consider specifying the \'crossAxisDirection\' argument on the Viewport.',
+          alternative: "Alternatively, consider specifying the 'crossAxisDirection' argument on the Viewport.",
         ));
         return textDirectionToAxisDirection(Directionality.of(context));
       case AxisDirection.left:

packages/flutter/test/cupertino/text_selection_test.dart

@@ -296,7 +296,7 @@ void main() {
       variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS }),
     );
 
-    testWidgets('When a menu item doesn\'t fit, a second page is used.', (WidgetTester tester) async {
+    testWidgets("When a menu item doesn't fit, a second page is used.", (WidgetTester tester) async {
       // Set the screen size to more narrow, so that Paste can't fit.
       tester.binding.window.physicalSizeTestValue = const Size(800, 800);
       addTearDown(tester.binding.window.clearPhysicalSizeTestValue);

packages/flutter/test/gestures/pointer_router_test.dart

@@ -156,7 +156,7 @@ void main() {
       final PointerRouter router = PointerRouter();
       router.addRoute(2, (PointerEvent event) => throw 'Pointer exception');
     } catch (e) {
-      expect(e, contains('router: Instance of \'PointerRouter\''));
+      expect(e, contains("router: Instance of 'PointerRouter'"));
       expect(e, contains('route: Closure: (PointerEvent) => Null'));
       expect(e, contains('event: PointerDownEvent#[a-zA-Z0-9]{5}(position: Offset(0.0, 0.0))'));
     }

packages/flutter/test/material/data_table_theme_test.dart

@@ -78,10 +78,10 @@ void main() {
       .toList();
 
     expect(description[0], 'decoration: BoxDecoration(color: Color(0xfffffff0))');
-    expect(description[1], 'dataRowColor: Instance of \'_MaterialStatePropertyWith<Color>\'');
+    expect(description[1], "dataRowColor: Instance of '_MaterialStatePropertyWith<Color>'");
     expect(description[2], 'dataRowHeight: 51.0');
     expect(description[3], 'dataTextStyle: TextStyle(inherit: true, size: 12.0)');
-    expect(description[4], 'headingRowColor: Instance of \'_MaterialStatePropertyWith<Color>\'');
+    expect(description[4], "headingRowColor: Instance of '_MaterialStatePropertyWith<Color>'");
     expect(description[5], 'headingRowHeight: 52.0');
     expect(description[6], 'headingTextStyle: TextStyle(inherit: true, size: 14.0)');
     expect(description[7], 'horizontalMargin: 3.0');

packages/flutter/test/material/list_tile_test.dart

@@ -1716,7 +1716,7 @@ void main() {
     expect(find.byType(Material), paints..path(color: defaultColor));
   });
 
-  testWidgets('ListTile respects ListTileTheme\'s tileColor & selectedTileColor', (WidgetTester tester) async {
+  testWidgets("ListTile respects ListTileTheme's tileColor & selectedTileColor", (WidgetTester tester) async {
     late ListTileTheme theme;
     bool isSelected = false;
 
@@ -1754,7 +1754,7 @@ void main() {
     expect(find.byType(Material), paints..path(color: theme.selectedTileColor));
   });
 
-  testWidgets('ListTileTheme\'s tileColor & selectedTileColor are overridden by ListTile properties', (WidgetTester tester) async {
+  testWidgets("ListTileTheme's tileColor & selectedTileColor are overridden by ListTile properties", (WidgetTester tester) async {
     bool isSelected = false;
     final Color tileColor = Colors.green.shade500;
     final Color selectedTileColor = Colors.red.shade500;

packages/flutter/test/material/scrollbar_theme_test.dart

@@ -607,13 +607,13 @@ void main() {
       .toList();
 
     expect(description, <String>[
-      'thickness: Instance of \'_MaterialStatePropertyWith<double?>\'',
+      "thickness: Instance of '_MaterialStatePropertyWith<double?>'",
       'showTrackOnHover: true',
       'isAlwaysShown: true',
       'radius: Radius.circular(3.0)',
-      'thumbColor: Instance of \'_MaterialStatePropertyWith<Color?>\'',
+      "thumbColor: Instance of '_MaterialStatePropertyWith<Color?>'",
-      'trackColor: Instance of \'_MaterialStatePropertyWith<Color?>\'',
+      "trackColor: Instance of '_MaterialStatePropertyWith<Color?>'",
-      'trackBorderColor: Instance of \'_MaterialStatePropertyWith<Color?>\'',
+      "trackBorderColor: Instance of '_MaterialStatePropertyWith<Color?>'",
       'crossAxisMargin: 3.0',
       'mainAxisMargin: 6.0',
       'minThumbLength: 120.0',

packages/flutter/test/material/tabs_test.dart

@@ -2778,7 +2778,7 @@ void main() {
   });
 
   group('Tab overlayColor affects ink response', () {
-    testWidgets('Tab\'s ink well changes color on hover with Tab overlayColor', (WidgetTester tester) async {
+    testWidgets("Tab's ink well changes color on hover with Tab overlayColor", (WidgetTester tester) async {
       await tester.pumpWidget(
         boilerplate(
           child: DefaultTabController(
@@ -2810,7 +2810,7 @@ void main() {
     });
 
     testWidgets(
-      'Tab\'s ink response splashColor matches resolved Tab overlayColor for MaterialState.pressed',
+      "Tab's ink response splashColor matches resolved Tab overlayColor for MaterialState.pressed",
       (WidgetTester tester) async {
         const Color splashColor = Color(0xf00fffff);
         await tester.pumpWidget(
@@ -3430,7 +3430,7 @@ void main() {
     // because we tried to send a notification on dispose.
   });
 
-  testWidgets('TabController\'s animation value should be in sync with TabBarView\'s scroll value when user interrupts ballistic scroll', (WidgetTester tester) async {
+  testWidgets("TabController's animation value should be in sync with TabBarView's scroll value when user interrupts ballistic scroll", (WidgetTester tester) async {
     final TabController tabController = TabController(
       vsync: const TestVSync(),
       length: 3,
@@ -3520,7 +3520,7 @@ void main() {
     expect(log, <String>['init: 0', 'init: 3', 'dispose: 0']);
   });
 
-  testWidgets('TabController\'s animation value should be updated when TabController\'s index >= tabs\'s length', (WidgetTester tester) async {
+  testWidgets("TabController's animation value should be updated when TabController's index >= tabs's length", (WidgetTester tester) async {
     // This is a regression test for the issue brought up here
     // https://github.com/flutter/flutter/issues/79226
 

packages/flutter/test/material/text_form_field_test.dart

@@ -524,7 +524,7 @@ void main() {
   });
 
   // Regression test for https://github.com/flutter/flutter/issues/34847.
-  testWidgets('didChange resets the text field\'s value to empty when passed null', (WidgetTester tester) async {
+  testWidgets("didChange resets the text field's value to empty when passed null", (WidgetTester tester) async {
     await tester.pumpWidget(
       MaterialApp(
         home: Material(
@@ -549,7 +549,7 @@ void main() {
   });
 
   // Regression test for https://github.com/flutter/flutter/issues/34847.
-  testWidgets('reset resets the text field\'s value to empty when intialValue is null', (WidgetTester tester) async {
+  testWidgets("reset resets the text field's value to empty when intialValue is null", (WidgetTester tester) async {
     await tester.pumpWidget(
       MaterialApp(
         home: Material(

packages/flutter/test/material/text_selection_test.dart

@@ -153,7 +153,7 @@ void main() {
       variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.android }),
     );
 
-    testWidgets('When menu items don\'t fit, an overflow menu is used.', (WidgetTester tester) async {
+    testWidgets("When menu items don't fit, an overflow menu is used.", (WidgetTester tester) async {
       // Set the screen size to more narrow, so that Select all can't fit.
       tester.binding.window.physicalSizeTestValue = const Size(1000, 800);
       addTearDown(tester.binding.window.clearPhysicalSizeTestValue);

packages/flutter/test/painting/image_cache_clearing_test.dart

@@ -14,7 +14,7 @@ import '../rendering/rendering_tester.dart';
 void main() {
   TestRenderingFlutterBinding();
 
-  test('Clearing images while they\'re pending does not crash', () async {
+  test("Clearing images while they're pending does not crash", () async {
     final Uint8List bytes = Uint8List.fromList(kTransparentImage);
     final MemoryImage memoryImage = MemoryImage(bytes);
     final ImageStream stream = memoryImage.resolve(ImageConfiguration.empty);

packages/flutter/test/rendering/view_chrome_style_test.dart

@@ -40,7 +40,7 @@ void main() {
 
     group('status bar', () {
       testWidgets(
-        'statusBarColor isn\'t set for unannotated view',
+        "statusBarColor isn't set for unannotated view",
         (WidgetTester tester) async {
           await tester.pumpWidget(const SizedBox.expand());
           await tester.pumpAndSettle();
@@ -70,7 +70,7 @@ void main() {
       );
 
       testWidgets(
-        'statusBarColor isn\'t set when view covers less than half of the system status bar',
+        "statusBarColor isn't set when view covers less than half of the system status bar",
         (WidgetTester tester) async {
           setupTestDevice();
           const double lessThanHalfOfTheStatusBarHeight =
@@ -125,7 +125,7 @@ void main() {
 
     group('navigation color (Android only)', () {
       testWidgets(
-        'systemNavigationBarColor isn\'t set for non Android device',
+        "systemNavigationBarColor isn't set for non Android device",
         (WidgetTester tester) async {
           setupTestDevice();
           await tester.pumpWidget(const AnnotatedRegion<SystemUiOverlayStyle>(
@@ -145,7 +145,7 @@ void main() {
       );
 
       testWidgets(
-        'systemNavigationBarColor isn\'t set for unannotated view',
+        "systemNavigationBarColor isn't set for unannotated view",
         (WidgetTester tester) async {
           await tester.pumpWidget(const SizedBox.expand());
           await tester.pumpAndSettle();
@@ -176,7 +176,7 @@ void main() {
       );
 
       testWidgets(
-        'systemNavigationBarColor isn\'t set when view covers less than half of navigation bar',
+        "systemNavigationBarColor isn't set when view covers less than half of navigation bar",
         (WidgetTester tester) async {
           setupTestDevice();
           const double lessThanHalfOfTheNavigationBarHeight =

packages/flutter/test/widgets/baseline_test.dart

@@ -94,7 +94,7 @@ void main() {
     expect(calls, 2);
   });
 
-  testWidgets('LayoutBuilder returns child\'s baseline', (WidgetTester tester) async {
+  testWidgets("LayoutBuilder returns child's baseline", (WidgetTester tester) async {
     await tester.pumpWidget(
       MaterialApp(
         home: Material(

packages/flutter/test/widgets/debug_test.dart

@@ -33,7 +33,7 @@ void main() {
           '   must have unique keys.\n'
           '   Flex(direction: vertical, mainAxisAlignment: start,\n'
           '   crossAxisAlignment: center) has multiple children with key\n'
-          '   [<\'key\'>].\n',
+          "   [<'key'>].\n",
         ),
       );
     }

packages/flutter/test/widgets/editable_text_test.dart

@@ -6869,7 +6869,7 @@ void main() {
     });
 
     // Regression test for https://github.com/flutter/flutter/issues/68086.
-    testWidgets('composing range removed if it\'s overflowed the truncated value\'s length', (WidgetTester tester) async {
+    testWidgets("composing range removed if it's overflowed the truncated value's length", (WidgetTester tester) async {
       await setupWidget(
         tester,
         LengthLimitingTextInputFormatter(
@@ -6929,7 +6929,7 @@ void main() {
       }
     });
 
-    testWidgets('composing range handled correctly when it\'s overflowed', (WidgetTester tester) async {
+    testWidgets("composing range handled correctly when it's overflowed", (WidgetTester tester) async {
       const String string = '👨‍👩‍👦0123456';
 
       await setupWidget(tester, LengthLimitingTextInputFormatter(maxLength));

packages/flutter/test/widgets/navigator_test.dart

@@ -1285,7 +1285,7 @@ void main() {
     expect(log, <String>['building B', 'building C', 'found C', 'building D']);
   });
 
-  testWidgets('Routes don\'t rebuild just because their animations ended', (WidgetTester tester) async {
+  testWidgets("Routes don't rebuild just because their animations ended", (WidgetTester tester) async {
     final GlobalKey<NavigatorState> key = GlobalKey<NavigatorState>();
     final List<String> log = <String>[];
     Route<dynamic>? nextRoute = PageRouteBuilder<int>(

packages/flutter/test/widgets/scroll_physics_test.dart

@@ -93,7 +93,7 @@ void main() {
     );
   });
 
-  test('ScrollPhysics scrolling subclasses - Creating the simulation doesn\'t alter the velocity for time 0', () {
+  test("ScrollPhysics scrolling subclasses - Creating the simulation doesn't alter the velocity for time 0", () {
     final ScrollMetrics position = FixedScrollMetrics(
       minScrollExtent: 0.0,
       maxScrollExtent: 100.0,

packages/flutter/test/widgets/scroll_position_test.dart

@@ -137,7 +137,7 @@ Future<void> performTest(WidgetTester tester, bool maintainState) async {
 }
 
 void main() {
-  testWidgets('ScrollPosition jumpTo() doesn\'t call notifyListeners twice', (WidgetTester tester) async {
+  testWidgets("ScrollPosition jumpTo() doesn't call notifyListeners twice", (WidgetTester tester) async {
     int count = 0;
     await tester.pumpWidget(MaterialApp(
       home: ListView.builder(

packages/flutter/test/widgets/scrollbar_test.dart

@@ -1043,7 +1043,7 @@ void main() {
     expect(exception, isAssertionError);
     expect(
       (exception as AssertionError).message,
-      contains('The Scrollbar\'s ScrollController has no ScrollPosition attached.'),
+      contains("The Scrollbar's ScrollController has no ScrollPosition attached."),
     );
   });
 

packages/flutter/test/widgets/slivers_padding_test.dart

@@ -469,7 +469,7 @@ void main() {
     );
   });
 
-  testWidgets('SliverPadding consumes only its padding from the overlap of its parent\'s constraints', (WidgetTester tester) async {
+  testWidgets("SliverPadding consumes only its padding from the overlap of its parent's constraints", (WidgetTester tester) async {
     final _MockRenderSliver mock = _MockRenderSliver();
     final RenderSliverPadding renderObject = RenderSliverPadding(
       padding: const EdgeInsets.only(top: 20),
@@ -494,7 +494,7 @@ void main() {
     expect(mock.constraints.overlap, 80.0);
   });
 
-  testWidgets('SliverPadding passes the overlap to the child if it\'s negative', (WidgetTester tester) async {
+  testWidgets("SliverPadding passes the overlap to the child if it's negative", (WidgetTester tester) async {
     final _MockRenderSliver mock = _MockRenderSliver();
     final RenderSliverPadding renderObject = RenderSliverPadding(
       padding: const EdgeInsets.only(top: 20),

packages/flutter/test/widgets/stack_test.dart

@@ -765,8 +765,8 @@ void main() {
     expect(
       tester.takeException().toString(),
       'No Directionality widget found.\n'
-      'Stack widgets require a Directionality widget ancestor to resolve the \'alignment\' argument.\n'
+      "Stack widgets require a Directionality widget ancestor to resolve the 'alignment' argument.\n"
-      'The default value for \'alignment\' is AlignmentDirectional.topStart, which requires a text direction.\n'
+      "The default value for 'alignment' is AlignmentDirectional.topStart, which requires a text direction.\n"
       'The specific widget that could not find a Directionality ancestor was:\n'
       '  Stack\n'
       'The ownership chain for the affected widget is: "Stack ← [root]"\n'
@@ -775,7 +775,7 @@ void main() {
       'example, to determine how to lay out text, how to interpret "start" and "end" values, and to resolve '
       'EdgeInsetsDirectional, AlignmentDirectional, and other *Directional objects.\n'
       'Instead of providing a Directionality widget, another solution would be passing a non-directional '
-      '\'alignment\', or an explicit \'textDirection\', to the Stack.',
+      "'alignment', or an explicit 'textDirection', to the Stack.",
     );
   });
 }

packages/flutter_driver/lib/src/driver/web_driver.dart

@@ -106,7 +106,7 @@ class WebFlutterDriver extends FlutterDriver {
       //
       // TODO(angjieli): Support Mobile Web. (https://github.com/flutter/flutter/issues/65192)
       await webDriver.execute(
-          'document.querySelector(\'flt-semantics-placeholder\').click();',
+          "document.querySelector('flt-semantics-placeholder').click();",
           <String>[]);
       _accessibilityEnabled = true;
     }

packages/flutter_tools/lib/src/android/android_device.dart

@@ -1031,7 +1031,7 @@ class AdbLogReader extends DeviceLogReader {
       final String lastLogcatTimestamp = await device.lastLogcatTimestamp();
       args.addAll(<String>[
         '-T',
-        if (lastLogcatTimestamp != null) '\'$lastLogcatTimestamp\'' else '0',
+        if (lastLogcatTimestamp != null) "'$lastLogcatTimestamp'" else '0',
       ]);
     }
     final Process process = await processManager.start(device.adbCommandForDevice(args));

packages/flutter_tools/lib/src/android/deferred_components_gen_snapshot_validator.dart

@@ -80,7 +80,7 @@ class DeferredComponentsGenSnapshotValidator extends DeferredComponentsValidator
     if (!appManifestFile.existsSync()) {
       invalidFiles[appManifestFile.path] = 'Error: $appManifestFile does not '
         'exist or could not be found. Please ensure an AndroidManifest.xml '
-        'exists for the app\'s base module.';
+        "exists for the app's base module.";
       return false;
     }
     XmlDocument document;
@@ -222,37 +222,37 @@ class DeferredComponentsGenSnapshotValidator extends DeferredComponentsValidator
     final YamlMap data = loadYaml(cacheFile.readAsStringSync()) as YamlMap;
     // validate yaml format.
     if (!data.containsKey('loading-units')) {
-      invalidFiles[cacheFile.path] = 'Invalid loading units yaml file, \'loading-units\' '
+      invalidFiles[cacheFile.path] = "Invalid loading units yaml file, 'loading-units' "
                                        'entry did not exist.';
       return loadingUnits;
     } else {
       if (data['loading-units'] is! YamlList && data['loading-units'] != null) {
-        invalidFiles[cacheFile.path] = 'Invalid loading units yaml file, \'loading-units\' '
+        invalidFiles[cacheFile.path] = "Invalid loading units yaml file, 'loading-units' "
                                          'is not a list.';
         return loadingUnits;
       }
       if (data['loading-units'] != null) {
         for (final dynamic loadingUnitData in data['loading-units']) {
           if (loadingUnitData is! YamlMap) {
-            invalidFiles[cacheFile.path] = 'Invalid loading units yaml file, \'loading-units\' '
+            invalidFiles[cacheFile.path] = "Invalid loading units yaml file, 'loading-units' "
                                              'is not a list of maps.';
             return loadingUnits;
           }
           final YamlMap loadingUnitDataMap = loadingUnitData as YamlMap;
           if (loadingUnitDataMap['id'] == null) {
             invalidFiles[cacheFile.path] = 'Invalid loading units yaml file, all '
-                                             'loading units must have an \'id\'';
+                                             "loading units must have an 'id'";
             return loadingUnits;
           }
           if (loadingUnitDataMap['libraries'] != null) {
             if (loadingUnitDataMap['libraries'] is! YamlList) {
-              invalidFiles[cacheFile.path] = 'Invalid loading units yaml file, \'libraries\' '
+              invalidFiles[cacheFile.path] = "Invalid loading units yaml file, 'libraries' "
                                                'is not a list.';
               return loadingUnits;
             }
             for (final dynamic node in loadingUnitDataMap['libraries'] as YamlList) {
               if (node is! String) {
-                invalidFiles[cacheFile.path] = 'Invalid loading units yaml file, \'libraries\' '
+                invalidFiles[cacheFile.path] = "Invalid loading units yaml file, 'libraries' "
                                                  'is not a list of strings.';
                 return loadingUnits;
               }

packages/flutter_tools/lib/src/android/gradle_errors.dart

@@ -388,7 +388,7 @@ final GradleHandledError minSdkVersion = GradleHandledError(
         '  }\n'
         '}\n\n'
       )+
-      'Note that your app won\'t be available to users running Android SDKs below ${minSdkVersionMatch.group(2)}.\n'
+      "Note that your app won't be available to users running Android SDKs below ${minSdkVersionMatch.group(2)}.\n"
       'Alternatively, try to find a version of this plugin that supports these lower versions of the Android SDK.'
     );
     return GradleBuildStatus.exit;

packages/flutter_tools/lib/src/android/gradle_utils.dart

@@ -110,13 +110,13 @@ distributionUrl=https\\://services.gradle.org/distributions/gradle-$gradleVersio
 String getGradleVersionForAndroidPlugin(Directory directory, Logger logger) {
   final File buildFile = directory.childFile('build.gradle');
   if (!buildFile.existsSync()) {
-    logger.printTrace('$buildFile doesn\'t exist, assuming AGP version: $_defaultGradleVersion');
+    logger.printTrace("$buildFile doesn't exist, assuming AGP version: $_defaultGradleVersion");
     return _defaultGradleVersion;
   }
   final String buildFileContent = buildFile.readAsStringSync();
   final Iterable<Match> pluginMatches = _androidPluginRegExp.allMatches(buildFileContent);
   if (pluginMatches.isEmpty) {
-    logger.printTrace('$buildFile doesn\'t provide an AGP version, assuming AGP version: $_defaultGradleVersion');
+    logger.printTrace("$buildFile doesn't provide an AGP version, assuming AGP version: $_defaultGradleVersion");
     return _defaultGradleVersion;
   }
   final String androidPluginVersion = pluginMatches.first.group(1);

packages/flutter_tools/lib/src/base/error_handling_io.dart

@@ -90,7 +90,7 @@ class ErrorHandlingFileSystem extends ForwardingFileSystem {
       if (file.existsSync()) {
         throwToolExit(
           'The Flutter tool tried to delete the file or directory ${file.path} but was '
-          'unable to. This may be due to the file and/or project\'s location on a read-only '
+          "unable to. This may be due to the file and/or project's location on a read-only "
           'volume. Consider relocating the project and trying again',
         );
       }

packages/flutter_tools/lib/src/base/os.dart

@@ -351,7 +351,7 @@ class _LinuxUtils extends _PosixUtils {
         final String value =  entryKeyValuePair[1];
         // Remove quotes from either end of the value if they exist
         final String quote = value[0];
-        if (quote == '\'' || quote == '"') {
+        if (quote == "'" || quote == '"') {
           return value.substring(0, value.length - 1).substring(1);
         } else {
           return value;

packages/flutter_tools/lib/src/commands/build_apk.dart

@@ -63,7 +63,7 @@ class BuildApkCommand extends BuildSubCommand {
     "This command can build debug and release versions of your application. 'debug' builds support "
     "debugging and a quick development cycle. 'release' builds don't support debugging and are "
     'suitable for deploying to app stores. If you are deploying the app to the Play Store, '
-    'it\'s recommended to use app bundles or split the APK to reduce the APK size. Learn more at:\n\n'
+    "it's recommended to use app bundles or split the APK to reduce the APK size. Learn more at:\n\n"
     ' * https://developer.android.com/guide/app-bundle\n'
     ' * https://developer.android.com/studio/build/configure-apk-splits#configure-abi-split';
 

packages/flutter_tools/lib/src/commands/generate_localizations.dart

@@ -128,11 +128,11 @@ class GenerateLocalizationsCommand extends FlutterCommand {
       'gen-inputs-and-outputs-list',
       valueHelp: 'path-to-output-directory',
       help: 'When specified, the tool generates a JSON file containing the '
-            'tool\'s inputs and outputs named gen_l10n_inputs_and_outputs.json.\n'
+            "tool's inputs and outputs named gen_l10n_inputs_and_outputs.json.\n"
             '\n'
             'This can be useful for keeping track of which files of the Flutter '
             'project were used when generating the latest set of localizations. '
-            'For example, the Flutter tool\'s build system uses this file to '
+            "For example, the Flutter tool's build system uses this file to "
             'keep track of when to call gen_l10n during hot reload.\n'
             '\n'
             'The value of this option is the directory where the JSON file will be '

packages/flutter_tools/lib/src/commands/packages.dart

@@ -23,7 +23,7 @@ import '../runner/flutter_command.dart';
 class PackagesCommand extends FlutterCommand {
   PackagesCommand() {
     addSubcommand(PackagesGetCommand('get', false));
-    addSubcommand(PackagesInteractiveGetCommand('upgrade', 'Upgrade the current package\'s dependencies to latest versions.'));
+    addSubcommand(PackagesInteractiveGetCommand('upgrade', "Upgrade the current package's dependencies to latest versions."));
     addSubcommand(PackagesInteractiveGetCommand('add', 'Add a dependency to pubspec.yaml.'));
     addSubcommand(PackagesInteractiveGetCommand('remove', 'Removes a dependency from the current package.'));
     addSubcommand(PackagesTestCommand());

packages/flutter_tools/lib/src/commands/run.dart

@@ -261,7 +261,7 @@ class RunCommand extends RunCommandBase {
               'or just dump the trace as soon as the application is running. The first frame '
               'is detected by looking for a Timeline event with the name '
               '"${Tracing.firstUsefulFrameEventName}". '
-              'By default, the widgets library\'s binding takes care of sending this event.',
+              "By default, the widgets library's binding takes care of sending this event.",
       )
       ..addFlag('use-test-fonts',
         negatable: true,

packages/flutter_tools/lib/src/commands/screenshot.dart

@@ -44,7 +44,7 @@ class ScreenshotCommand extends FlutterCommand {
       help: 'The type of screenshot to retrieve.',
       allowed: const <String>[_kDeviceType, _kSkiaType, _kRasterizerType],
       allowedHelp: const <String, String>{
-        _kDeviceType: 'Delegate to the device\'s native screenshot capabilities. This '
+        _kDeviceType: "Delegate to the device's native screenshot capabilities. This "
                       'screenshots the entire screen currently being displayed (including content '
                       'not rendered by Flutter, like the device status bar).',
         _kSkiaType: 'Render the Flutter app as a Skia picture. Requires "--$_kObservatoryUrl".',

packages/flutter_tools/lib/src/commands/upgrade.dart

@@ -246,15 +246,15 @@ class UpgradeCommandRunner {
       if (errorString.contains('fatal: HEAD does not point to a branch')) {
         throwToolExit(
           'You are not currently on a release branch. Use git to '
-          'check out an official branch (\'stable\', \'beta\', \'dev\', or \'master\') '
+          "check out an official branch ('stable', 'beta', 'dev', or 'master') "
           'and retry, for example:\n'
           '  git checkout stable'
         );
       } else if (errorString.contains('fatal: no upstream configured for branch')) {
         throwToolExit(
           'Unable to upgrade Flutter: no origin repository configured. '
-          'Run \'git remote add origin '
+          "Run 'git remote add origin "
-          'https://github.com/flutter/flutter\' in $workingDirectory');
+          "https://github.com/flutter/flutter' in $workingDirectory");
       } else {
         throwToolExit(errorString);
       }

packages/flutter_tools/lib/src/flutter_plugins.dart

@@ -1098,7 +1098,7 @@ List<PluginInterfaceResolution> resolvePlatformImplementation(
         if (defaultImplementation == null) {
           if (throwOnPluginPubspecError) {
             globals.printError(
-              'Plugin `${plugin.name}` doesn\'t implement a plugin interface, nor sets '
+              "Plugin `${plugin.name}` doesn't implement a plugin interface, nor sets "
               'a default implementation in pubspec.yaml.\n\n'
               'To set a default implementation, use:\n'
               'flutter:\n'

packages/flutter_tools/lib/src/isolated/devfs_web.dart

@@ -106,7 +106,7 @@ class WebExpressionCompiler implements ExpressionCompiler {
     }
 
     return ExpressionCompilationResult(
-        'InternalError: frontend server failed to compile \'$expression\'',
+        "InternalError: frontend server failed to compile '$expression'",
         true);
   }
 

packages/flutter_tools/lib/src/localizations/gen_l10n.dart

@@ -107,7 +107,7 @@ String generateDateFormattingLogic(Message message) {
           'the "${placeholder.type}" type. To properly resolve for the right '
           '${placeholder.type} format, the "format" attribute needs to be set '
           'to determine which DateFormat to use. \n'
-          'Check the intl library\'s DateFormat class constructors for allowed '
+          "Check the intl library's DateFormat class constructors for allowed "
           'date formats.'
         );
       }
@@ -115,7 +115,7 @@ String generateDateFormattingLogic(Message message) {
         throw L10nException(
           'Date format "$placeholderFormat" for placeholder '
           '${placeholder.name} does not have a corresponding DateFormat '
-          'constructor\n. Check the intl library\'s DateFormat class '
+          "constructor\n. Check the intl library's DateFormat class "
           'constructors for allowed date formats.'
         );
       }
@@ -140,7 +140,7 @@ String generateNumberFormattingLogic(Message message) {
         throw L10nException(
           'Number format $placeholderFormat for the ${placeholder.name} '
           'placeholder does not have a corresponding NumberFormat constructor.\n'
-          'Check the intl library\'s NumberFormat class constructors for allowed '
+          "Check the intl library's NumberFormat class constructors for allowed "
           'number formats.'
         );
       }
@@ -765,7 +765,7 @@ class LocalizationsGenerator {
     if (!directory.existsSync()) {
       throw L10nException(
         'Directory does not exist: $directory.\n'
-        'Please select a directory that contains the project\'s localizations '
+        "Please select a directory that contains the project's localizations "
         'resource files.'
       );
     }
@@ -1078,18 +1078,18 @@ class LocalizationsGenerator {
       final String? scriptCode = locale.scriptCode;
 
       if (countryCode == null && scriptCode == null) {
-        return 'Locale(\'$languageCode\')';
+        return "Locale('$languageCode')";
       } else if (countryCode != null && scriptCode == null) {
-        return 'Locale(\'$languageCode\', \'$countryCode\')';
+        return "Locale('$languageCode', '$countryCode')";
       } else if (countryCode != null && scriptCode != null) {
-        return 'Locale.fromSubtags(languageCode: \'$languageCode\', countryCode: \'$countryCode\', scriptCode: \'$scriptCode\')';
+        return "Locale.fromSubtags(languageCode: '$languageCode', countryCode: '$countryCode', scriptCode: '$scriptCode')";
       } else {
-        return 'Locale.fromSubtags(languageCode: \'$languageCode\', scriptCode: \'$scriptCode\')';
+        return "Locale.fromSubtags(languageCode: '$languageCode', scriptCode: '$scriptCode')";
       }
     });
 
     final Set<String> supportedLanguageCodes = Set<String>.from(
-      _allBundles.locales.map<String>((LocaleInfo locale) => '\'${locale.languageCode}\'')
+      _allBundles.locales.map<String>((LocaleInfo locale) => "'${locale.languageCode}'")
     );
 
     final List<LocaleInfo> allLocales = _allBundles.locales.toList()..sort();

packages/flutter_tools/lib/src/macos/cocoapods.dart

@@ -408,7 +408,7 @@ class CocoaPods {
     // the old parsed .flutter-plugins file, prompt the regeneration. Old line was:
     // plugin_pods = parse_KV_file('../.flutter-plugins')
     if (xcodeProject.podfile.existsSync() &&
-      xcodeProject.podfile.readAsStringSync().contains('.flutter-plugins\'')) {
+      xcodeProject.podfile.readAsStringSync().contains(".flutter-plugins'")) {
       const String error = 'Warning: Podfile is out of date\n'
           '$outOfDatePluginsPodfileConsequence\n'
           'To regenerate the Podfile, run:\n';

packages/flutter_tools/test/commands.shard/hermetic/devices_test.dart

@@ -50,7 +50,7 @@ void main() {
       Artifacts: () => Artifacts.test(),
     });
 
-    testUsingContext('get devices\' platform types', () async {
+    testUsingContext("get devices' platform types", () async {
       final List<String> platformTypes = Device.devicesPlatformTypes(
         await globals.deviceManager.getAllConnectedDevices(),
       );

packages/flutter_tools/test/commands.shard/hermetic/test_test.dart

@@ -624,7 +624,7 @@ dev_dependencies:
     DeviceManager: () => _FakeDeviceManager(<Device>[]),
   });
 
-  testUsingContext('Don\'t build the asset manifest if --no-test-assets if informed', () async {
+  testUsingContext("Don't build the asset manifest if --no-test-assets if informed", () async {
     final FakeFlutterTestRunner testRunner = FakeFlutterTestRunner(0);
 
     final TestCommand testCommand = TestCommand(testRunner: testRunner);

packages/flutter_tools/test/commands.shard/permeable/analyze_once_test.dart

@@ -226,8 +226,8 @@ void main() {
         'Analyzing',
         'info $analyzerSeparator Avoid empty else statements',
         'info $analyzerSeparator Avoid empty statements',
-        'info $analyzerSeparator The declaration \'_incrementCounter\' isn\'t',
+        "info $analyzerSeparator The declaration '_incrementCounter' isn't",
-        'warning $analyzerSeparator The parameter \'onPressed\' is required',
+        "warning $analyzerSeparator The parameter 'onPressed' is required",
       ],
       exitMessageContains: '4 issues found.',
       toolExit: true,
@@ -272,9 +272,9 @@ void main() {
         arguments: <String>['analyze', '--no-pub'],
         statusTextContains: <String>[
           'Analyzing',
-          'info $analyzerSeparator The declaration \'_incrementCounter\' isn\'t',
+          "info $analyzerSeparator The declaration '_incrementCounter' isn't",
           'info $analyzerSeparator Only throw instances of classes extending either Exception or Error',
-          'warning $analyzerSeparator The parameter \'onPressed\' is required',
+          "warning $analyzerSeparator The parameter 'onPressed' is required",
         ],
         exitMessageContains: '3 issues found.',
         toolExit: true,

packages/flutter_tools/test/commands.shard/permeable/create_test.dart

@@ -36,7 +36,7 @@ import '../../src/fakes.dart';
 import '../../src/pubspec_schema.dart';
 import '../../src/test_flutter_command_runner.dart';
 
-const String _kNoPlatformsMessage = 'You\'ve created a plugin project that doesn\'t yet support any platforms.\n';
+const String _kNoPlatformsMessage = "You've created a plugin project that doesn't yet support any platforms.\n";
 const String frameworkRevision = '12345678';
 const String frameworkChannel = 'omega';
 const String _kDisabledPlatformRequestedMessage = 'currently not supported on your local environment.';

packages/flutter_tools/test/general.shard/android/adb_log_reader_test.dart

@@ -34,7 +34,7 @@ void main() {
           '-v',
           'time',
           '-T',
-          '\'$kLastLogcatTimestamp\'',
+          "'$kLastLogcatTimestamp'",
         ],
       )
     ]);

packages/flutter_tools/test/general.shard/android/deferred_components_gen_snapshot_validator_test.dart

@@ -228,7 +228,7 @@ loading-units-spelled-wrong:
     validator.attemptToolExit();
 
     expect(logger.statusText, contains('Errors checking the following files:'));
-    expect(logger.statusText, contains('Invalid loading units yaml file, \'loading-units\' entry did not exist.'));
+    expect(logger.statusText, contains("Invalid loading units yaml file, 'loading-units' entry did not exist."));
 
     expect(logger.statusText.contains('Previously existing loading units no longer exist:\n\n  LoadingUnit 2\n    Libraries:\n    - lib1\n'), false);
   });
@@ -253,7 +253,7 @@ loading-units: hello
     validator.attemptToolExit();
 
     expect(logger.statusText, contains('Errors checking the following files:'));
-    expect(logger.statusText, contains('Invalid loading units yaml file, \'loading-units\' is not a list.'));
+    expect(logger.statusText, contains("Invalid loading units yaml file, 'loading-units' is not a list."));
   });
 
   testWithoutContext('loadingUnitCache validator detects malformed file: not a list', () async {
@@ -278,7 +278,7 @@ loading-units:
     validator.attemptToolExit();
 
     expect(logger.statusText, contains('Errors checking the following files:'));
-    expect(logger.statusText, contains('Invalid loading units yaml file, \'loading-units\' is not a list of maps.'));
+    expect(logger.statusText, contains("Invalid loading units yaml file, 'loading-units' is not a list of maps."));
   });
 
   testWithoutContext('loadingUnitCache validator detects malformed file: missing id', () async {
@@ -307,7 +307,7 @@ loading-units:
     validator.attemptToolExit();
 
     expect(logger.statusText, contains('Errors checking the following files:'));
-    expect(logger.statusText, contains('Invalid loading units yaml file, all loading units must have an \'id\''));
+    expect(logger.statusText, contains("Invalid loading units yaml file, all loading units must have an 'id'"));
   });
 
   testWithoutContext('loadingUnitCache validator detects malformed file: libraries is list', () async {
@@ -335,7 +335,7 @@ loading-units:
     validator.attemptToolExit();
 
     expect(logger.statusText, contains('Errors checking the following files:'));
-    expect(logger.statusText, contains('Invalid loading units yaml file, \'libraries\' is not a list.'));
+    expect(logger.statusText, contains("Invalid loading units yaml file, 'libraries' is not a list."));
   });
 
   testWithoutContext('loadingUnitCache validator detects malformed file: libraries is list of strings', () async {
@@ -365,7 +365,7 @@ loading-units:
     validator.attemptToolExit();
 
     expect(logger.statusText, contains('Errors checking the following files:'));
-    expect(logger.statusText, contains('Invalid loading units yaml file, \'libraries\' is not a list of strings.'));
+    expect(logger.statusText, contains("Invalid loading units yaml file, 'libraries' is not a list of strings."));
   });
 
   testWithoutContext('loadingUnitCache validator detects malformed file: empty libraries allowed', () async {
@@ -460,7 +460,7 @@ loading-units:
     expect(manifestOutput.existsSync(), true);
     expect(manifestOutput.readAsStringSync().contains('<meta-data android:name="io.flutter.embedding.engine.deferredcomponents.DeferredComponentManager.loadingUnitMapping" android:value="3:component1,2:component2,4:component2"/>'), true);
     expect(manifestOutput.readAsStringSync().contains('android:value="invalidmapping"'), false);
-    expect(manifestOutput.readAsStringSync().contains('<!-- Don\'t delete the meta-data below.'), true);
+    expect(manifestOutput.readAsStringSync().contains("<!-- Don't delete the meta-data below."), true);
   });
 
   testWithoutContext('androidStringMapping adds mapping when no existing mapping', () async {
@@ -518,7 +518,7 @@ loading-units:
       .childFile('AndroidManifest.xml');
     expect(manifestOutput.existsSync(), true);
     expect(manifestOutput.readAsStringSync(), contains('<meta-data android:name="io.flutter.embedding.engine.deferredcomponents.DeferredComponentManager.loadingUnitMapping" android:value="3:component1,2:component2,4:component2"/>'));
-    expect(manifestOutput.readAsStringSync(), contains('<!-- Don\'t delete the meta-data below.'));
+    expect(manifestOutput.readAsStringSync(), contains("<!-- Don't delete the meta-data below."));
   });
 
   // The mapping is incorrectly placed in the activity instead of application.
@@ -579,7 +579,7 @@ loading-units:
       .childFile('AndroidManifest.xml');
     expect(manifestOutput.existsSync(), true);
     expect(manifestOutput.readAsStringSync(), contains('<meta-data android:name="io.flutter.embedding.engine.deferredcomponents.DeferredComponentManager.loadingUnitMapping" android:value="3:component1,2:component2,4:component2"/>'));
-    expect(manifestOutput.readAsStringSync(), contains('<!-- Don\'t delete the meta-data below.'));
+    expect(manifestOutput.readAsStringSync(), contains("<!-- Don't delete the meta-data below."));
   });
 
   testWithoutContext('androidStringMapping generates base module loading unit mapping', () async {
@@ -640,7 +640,7 @@ loading-units:
       .childFile('AndroidManifest.xml');
     expect(manifestOutput.existsSync(), true);
     expect(manifestOutput.readAsStringSync(), contains('<meta-data android:name="io.flutter.embedding.engine.deferredcomponents.DeferredComponentManager.loadingUnitMapping" android:value="3:component1,2:component2,4:component2,5:,6:"/>'));
-    expect(manifestOutput.readAsStringSync(), contains('<!-- Don\'t delete the meta-data below.'));
+    expect(manifestOutput.readAsStringSync(), contains("<!-- Don't delete the meta-data below."));
   });
 
   // Tests if all of the regexp whitespace detection is working.
@@ -707,6 +707,6 @@ loading-units:
     expect(manifestOutput.existsSync(), true);
     expect(manifestOutput.readAsStringSync().contains('<meta-data android:name="io.flutter.embedding.engine.deferredcomponents.DeferredComponentManager.loadingUnitMapping" android:value="3:component1,2:component2,4:component2"/>'), true);
     expect(manifestOutput.readAsStringSync().contains(RegExp(r'android:value[\s\n]*=[\s\n]*"invalidmapping"')), false);
-    expect(manifestOutput.readAsStringSync().contains('<!-- Don\'t delete the meta-data below.'), true);
+    expect(manifestOutput.readAsStringSync().contains("<!-- Don't delete the meta-data below."), true);
   });
 }

packages/flutter_tools/test/general.shard/android/gradle_errors_test.dart

@@ -677,7 +677,7 @@ assembleProfile
           '  }\n'
           '}\n'
           '\n'
-          'Note that your app won\'t be available to users running Android SDKs below 19.\n'
+          "Note that your app won't be available to users running Android SDKs below 19.\n"
           'Alternatively, try to find a version of this plugin that supports these lower versions of the Android SDK.\n'
           ''
         )

packages/flutter_tools/test/general.shard/args_test.dart

@@ -49,7 +49,7 @@ final RegExp _bannedQuotePatterns = RegExp(r" '|' |'\.|\('|'\)|`");
 final RegExp _bannedArgumentReferencePatterns = RegExp(r'[^"=]--[^ ]');
 final RegExp _questionablePatterns = RegExp(r'[a-z]\.[A-Z]');
 final RegExp _bannedUri = RegExp(r'\b[Uu][Rr][Ii]\b');
-const String _needHelp = 'Every option must have help explaining what it does, even if it\'s '
+const String _needHelp = "Every option must have help explaining what it does, even if it's "
                          'for testing purposes, because this is the bare minimum of '
                          'documentation we can add just for ourselves. If it is not intended '
                          'for developers, then use "hide: !verboseHelp" to only show the '

packages/flutter_tools/test/general.shard/build_system/targets/dart_plugin_registrant_test.dart

@@ -243,22 +243,22 @@ void main() {
           '\n'
           '// @dart = 2.12\n'
           '\n'
-          'import \'package:path_provider_example/main.dart\' as entrypoint;\n'
+          "import 'package:path_provider_example/main.dart' as entrypoint;\n"
-          'import \'dart:io\'; // flutter_ignore: dart_io_import.\n'
+          "import 'dart:io'; // flutter_ignore: dart_io_import.\n"
-          'import \'package:path_provider_linux/path_provider_linux.dart\';\n'
+          "import 'package:path_provider_linux/path_provider_linux.dart';\n"
           '\n'
-          '@pragma(\'vm:entry-point\')\n'
+          "@pragma('vm:entry-point')\n"
           'class _PluginRegistrant {\n'
           '\n'
-          '  @pragma(\'vm:entry-point\')\n'
+          "  @pragma('vm:entry-point')\n"
           '  static void register() {\n'
           '    if (Platform.isLinux) {\n'
           '      try {\n'
           '        PathProviderLinux.registerWith();\n'
           '      } catch (err) {\n'
           '        print(\n'
-          '          \'`path_provider_linux` threw an error: \$err. \'\n'
+          "          '`path_provider_linux` threw an error: \$err. '\n"
-          '          \'The app may not function as expected until you remove this plugin from pubspec.yaml\'\n'
+          "          'The app may not function as expected until you remove this plugin from pubspec.yaml'\n"
           '        );\n'
           '        rethrow;\n'
           '      }\n'
@@ -380,22 +380,22 @@ void main() {
           '\n'
           '// @dart = 2.12\n'
           '\n'
-          'import \'file:///root/external.dart\' as entrypoint;\n'
+          "import 'file:///root/external.dart' as entrypoint;\n"
-          'import \'dart:io\'; // flutter_ignore: dart_io_import.\n'
+          "import 'dart:io'; // flutter_ignore: dart_io_import.\n"
-          'import \'package:path_provider_linux/path_provider_linux.dart\';\n'
+          "import 'package:path_provider_linux/path_provider_linux.dart';\n"
           '\n'
-          '@pragma(\'vm:entry-point\')\n'
+          "@pragma('vm:entry-point')\n"
           'class _PluginRegistrant {\n'
           '\n'
-          '  @pragma(\'vm:entry-point\')\n'
+          "  @pragma('vm:entry-point')\n"
           '  static void register() {\n'
           '    if (Platform.isLinux) {\n'
           '      try {\n'
           '        PathProviderLinux.registerWith();\n'
           '      } catch (err) {\n'
           '        print(\n'
-          '          \'`path_provider_linux` threw an error: \$err. \'\n'
+          "          '`path_provider_linux` threw an error: \$err. '\n"
-          '          \'The app may not function as expected until you remove this plugin from pubspec.yaml\'\n'
+          "          'The app may not function as expected until you remove this plugin from pubspec.yaml'\n"
           '        );\n'
           '        rethrow;\n'
           '      }\n'

packages/flutter_tools/test/general.shard/build_system/targets/linux_test.dart

@@ -144,7 +144,7 @@ void main() {
     ProcessManager: () => FakeProcessManager.any(),
   });
 
-  testWithoutContext('DebugBundleLinuxAssets\'s name depends on target platforms', () async {
+  testWithoutContext("DebugBundleLinuxAssets's name depends on target platforms", () async {
     expect(const DebugBundleLinuxAssets(TargetPlatform.linux_x64).name, 'debug_bundle_linux-x64_assets');
     expect(const DebugBundleLinuxAssets(TargetPlatform.linux_arm64).name, 'debug_bundle_linux-arm64_assets');
   });
@@ -183,7 +183,7 @@ void main() {
     ProcessManager: () => FakeProcessManager.any(),
   });
 
-  testWithoutContext('ProfileBundleLinuxAssets\'s name depends on target platforms', () async {
+  testWithoutContext("ProfileBundleLinuxAssets's name depends on target platforms", () async {
     expect(const ProfileBundleLinuxAssets(TargetPlatform.linux_x64).name, 'profile_bundle_linux-x64_assets');
     expect(const ProfileBundleLinuxAssets(TargetPlatform.linux_arm64).name, 'profile_bundle_linux-arm64_assets');
   });
@@ -222,7 +222,7 @@ void main() {
     ProcessManager: () => FakeProcessManager.any(),
   });
 
-  testWithoutContext('ReleaseBundleLinuxAssets\'s name depends on target platforms', () async {
+  testWithoutContext("ReleaseBundleLinuxAssets's name depends on target platforms", () async {
     expect(const ReleaseBundleLinuxAssets(TargetPlatform.linux_x64).name, 'release_bundle_linux-x64_assets');
     expect(const ReleaseBundleLinuxAssets(TargetPlatform.linux_arm64).name, 'release_bundle_linux-arm64_assets');
   });

packages/flutter_tools/test/general.shard/custom_devices/custom_device_test.dart

@@ -246,7 +246,7 @@ void main() {
     expect(pingCommandWasExecuted, true);
   });
 
-  testWithoutContext('CustomDevices.discoverDevices doesn\'t report device when ping command fails', () async {
+  testWithoutContext("CustomDevices.discoverDevices doesn't report device when ping command fails", () async {
     final MemoryFileSystem fs = MemoryFileSystem.test();
     final Directory dir = fs.directory('custom_devices_config_dir');
 
@@ -272,7 +272,7 @@ void main() {
     expect(await discovery.discoverDevices(), hasLength(0));
   });
 
-  testWithoutContext('CustomDevices.discoverDevices doesn\'t report device when ping command output doesn\'t match ping success regex', () async {
+  testWithoutContext("CustomDevices.discoverDevices doesn't report device when ping command output doesn't match ping success regex", () async {
     final MemoryFileSystem fs = MemoryFileSystem.test();
     final Directory dir = fs.directory('custom_devices_config_dir');
 

packages/flutter_tools/test/general.shard/dart_plugin_test.dart

@@ -467,7 +467,7 @@ void main() {
         ));
         expect(
           testLogger.errorText,
-          'Plugin `url_launcher_linux_1` doesn\'t implement a plugin interface, '
+          "Plugin `url_launcher_linux_1` doesn't implement a plugin interface, "
           'nor sets a default implementation in pubspec.yaml.\n\n'
           'To set a default implementation, use:\n'
           'flutter:\n'
@@ -526,7 +526,7 @@ void main() {
         ));
         expect(
           testLogger.errorText,
-          'Plugin `url_launcher_linux` doesn\'t implement a plugin interface, '
+          "Plugin `url_launcher_linux` doesn't implement a plugin interface, "
           'nor sets a default implementation in pubspec.yaml.\n\n'
           'To set a default implementation, use:\n'
           'flutter:\n'
@@ -540,7 +540,7 @@ void main() {
           '  plugin:\n'
           '    implements: <plugin-interface>'
           '\n\n'
-          'Plugin `url_launcher_windows` doesn\'t implement a plugin interface, '
+          "Plugin `url_launcher_windows` doesn't implement a plugin interface, "
           'nor sets a default implementation in pubspec.yaml.\n\n'
           'To set a default implementation, use:\n'
           'flutter:\n'
@@ -632,25 +632,25 @@ void main() {
           '\n'
           '// @dart = 2.8\n'
           '\n'
-          'import \'package:app/main.dart\' as entrypoint;\n'
+          "import 'package:app/main.dart' as entrypoint;\n"
-          'import \'dart:io\'; // flutter_ignore: dart_io_import.\n'
+          "import 'dart:io'; // flutter_ignore: dart_io_import.\n"
-          'import \'package:url_launcher_linux/url_launcher_linux.dart\';\n'
+          "import 'package:url_launcher_linux/url_launcher_linux.dart';\n"
-          'import \'package:awesome_macos/awesome_macos.dart\';\n'
+          "import 'package:awesome_macos/awesome_macos.dart';\n"
-          'import \'package:url_launcher_macos/url_launcher_macos.dart\';\n'
+          "import 'package:url_launcher_macos/url_launcher_macos.dart';\n"
-          'import \'package:url_launcher_windows/url_launcher_windows.dart\';\n'
+          "import 'package:url_launcher_windows/url_launcher_windows.dart';\n"
           '\n'
-          '@pragma(\'vm:entry-point\')\n'
+          "@pragma('vm:entry-point')\n"
           'class _PluginRegistrant {\n'
           '\n'
-          '  @pragma(\'vm:entry-point\')\n'
+          "  @pragma('vm:entry-point')\n"
           '  static void register() {\n'
           '    if (Platform.isLinux) {\n'
           '      try {\n'
           '        LinuxPlugin.registerWith();\n'
           '      } catch (err) {\n'
           '        print(\n'
-          '          \'`url_launcher_linux` threw an error: \$err. \'\n'
+          "          '`url_launcher_linux` threw an error: \$err. '\n"
-          '          \'The app may not function as expected until you remove this plugin from pubspec.yaml\'\n'
+          "          'The app may not function as expected until you remove this plugin from pubspec.yaml'\n"
           '        );\n'
           '        rethrow;\n'
           '      }\n'
@@ -660,8 +660,8 @@ void main() {
           '        AwesomeMacOS.registerWith();\n'
           '      } catch (err) {\n'
           '        print(\n'
-          '          \'`awesome_macos` threw an error: \$err. \'\n'
+          "          '`awesome_macos` threw an error: \$err. '\n"
-          '          \'The app may not function as expected until you remove this plugin from pubspec.yaml\'\n'
+          "          'The app may not function as expected until you remove this plugin from pubspec.yaml'\n"
           '        );\n'
           '        rethrow;\n'
           '      }\n'
@@ -670,8 +670,8 @@ void main() {
           '        MacOSPlugin.registerWith();\n'
           '      } catch (err) {\n'
           '        print(\n'
-          '          \'`url_launcher_macos` threw an error: \$err. \'\n'
+          "          '`url_launcher_macos` threw an error: \$err. '\n"
-          '          \'The app may not function as expected until you remove this plugin from pubspec.yaml\'\n'
+          "          'The app may not function as expected until you remove this plugin from pubspec.yaml'\n"
           '        );\n'
           '        rethrow;\n'
           '      }\n'
@@ -681,8 +681,8 @@ void main() {
           '        WindowsPlugin.registerWith();\n'
           '      } catch (err) {\n'
           '        print(\n'
-          '          \'`url_launcher_windows` threw an error: \$err. \'\n'
+          "          '`url_launcher_windows` threw an error: \$err. '\n"
-          '          \'The app may not function as expected until you remove this plugin from pubspec.yaml\'\n'
+          "          'The app may not function as expected until you remove this plugin from pubspec.yaml'\n"
           '        );\n'
           '        rethrow;\n'
           '      }\n'

packages/flutter_tools/test/general.shard/generate_localizations_test.dart

@@ -348,7 +348,7 @@ void main() {
           classNameString: defaultClassNameString,
         ).loadResources();
     } on L10nException catch (e) {
-      expect(e.message, contains('The following .arb file\'s locale could not be determined'));
+      expect(e.message, contains("The following .arb file's locale could not be determined"));
       return;
     }
 

packages/flutter_tools/test/general.shard/license_collector_test.dart

@@ -427,7 +427,7 @@ void main() {
     expect(licenseResult.dependencies, isEmpty);
     expect(licenseResult.errorMessages.single,
       'package foo specified an additional license at /foo.txt, but this file could not be read:'
-      '\nFileSystemException: Invalid UTF-8 byte, path = \'/foo.txt\'',
+      "\nFileSystemException: Invalid UTF-8 byte, path = '/foo.txt'",
     );
   });
 }

packages/flutter_tools/test/general.shard/macos/cocoapods_test.dart

@@ -372,7 +372,7 @@ void main() {
       final FlutterProject projectUnderTest = setupProjectUnderTest();
       fileSystem.file(fileSystem.path.join('project', 'ios', 'Podfile'))
         ..createSync()
-        ..writeAsStringSync('plugin_pods = parse_KV_file(\'../.flutter-plugins\')');
+        ..writeAsStringSync("plugin_pods = parse_KV_file('../.flutter-plugins')");
 
       await expectLater(cocoaPodsUnderTest.processPods(
         xcodeProject: projectUnderTest.ios,
@@ -396,7 +396,7 @@ void main() {
 
       projectUnderTest.macos.podfile
         ..createSync()
-        ..writeAsStringSync('plugin_pods = parse_KV_file(\'../.flutter-plugins\')');
+        ..writeAsStringSync("plugin_pods = parse_KV_file('../.flutter-plugins')");
       projectUnderTest.macos.podfileLock
         ..createSync()
         ..writeAsStringSync('Existing lock file.');

packages/flutter_tools/test/general.shard/plugins_test.dart

@@ -915,7 +915,7 @@ flutter:
         ProcessManager: () => FakeProcessManager.any(),
       });
 
-      testUsingContext('pluginClass: none doesn\'t trigger registrant entry on macOS', () async {
+      testUsingContext("pluginClass: none doesn't trigger registrant entry on macOS", () async {
         flutterProject.isModule = true;
         // Create a plugin without a pluginClass.
         final Directory pluginDirectory = createFakePlugin(fs);
@@ -997,7 +997,7 @@ flutter:
         ProcessManager: () => FakeProcessManager.any(),
       });
 
-      testUsingContext('pluginClass: none doesn\'t trigger registrant entry on Linux', () async {
+      testUsingContext("pluginClass: none doesn't trigger registrant entry on Linux", () async {
         // Create a plugin without a pluginClass.
         final Directory pluginDirectory = createFakePlugin(fs);
         pluginDirectory.childFile('pubspec.yaml').writeAsStringSync('''
@@ -1100,7 +1100,7 @@ flutter:
         ProcessManager: () => FakeProcessManager.any(),
       });
 
-      testUsingContext('pluginClass: none doesn\'t trigger registrant entry on Windows', () async {
+      testUsingContext("pluginClass: none doesn't trigger registrant entry on Windows", () async {
         // Create a plugin without a pluginClass.
         final Directory pluginDirectory = createFakePlugin(fs);
         pluginDirectory.childFile('pubspec.yaml').writeAsStringSync('''

packages/flutter_tools/test/general.shard/template_test.dart

@@ -39,7 +39,7 @@ void main() {
     templateDir.childFile('$imageName.img.tmpl').createSync(recursive: true);
     final File sourceImage = imageSourceDir.childFile(imageName);
     sourceImage.createSync(recursive: true);
-    sourceImage.writeAsStringSync('Ceci n\'est pas une pipe');
+    sourceImage.writeAsStringSync("Ceci n'est pas une pipe");
 
     final Template template = Template(
       templateDir,

packages/flutter_tools/test/general.shard/web/chrome_test.dart

@@ -441,7 +441,7 @@ void main() {
         command: args,
         stderr: 'Inconsistency detected by ld.so: ../elf/dl-tls.c: 493: '
                 '_dl_allocate_tls_init: Assertion `listp->slotinfo[cnt].gen '
-                '<= GL(dl_tls_generation)\' failed!',
+                "<= GL(dl_tls_generation)' failed!",
       ));
     }
 

packages/flutter_tools/test/general.shard/web/web_expression_compiler_test.dart

@@ -52,7 +52,7 @@ void main() {
       await expressionCompiler.compileExpressionToJs(
         null, null, 1, 1, null, null, null, 'a');
 
-    expectResult(result, true, 'InternalError: frontend server failed to compile \'a\'');
+    expectResult(result, true, "InternalError: frontend server failed to compile 'a'");
   });
 }
 

packages/flutter_tools/test/integration.shard/gen_l10n_test.dart

@@ -93,7 +93,7 @@ void main() {
       '#l10n 38 (Hello for 123)\n'
       '#l10n 39 (Hello for price USD123.00)\n'
       '#l10n 40 (Hello for price BTC0.50 (with optional param))\n'
-      '#l10n 41 (Hello for price BTC\'0.50 (with special character))\n'
+      "#l10n 41 (Hello for price BTC'0.50 (with special character))\n"
       '#l10n 42 (Hello for price BTC"0.50 (with special character))\n'
       '#l10n 43 (Hello for price BTC"\'0.50 (with special character))\n'
       '#l10n 44 (Hello for Decimal Pattern 1,200,000)\n'
@@ -114,8 +114,8 @@ void main() {
       '#l10n 59 ([Hello] -World- #123#)\n'
       '#l10n 60 (\$!)\n'
       '#l10n 61 (One \$)\n'
-      '#l10n 62 (Flutter\'s amazing!)\n'
+      "#l10n 62 (Flutter's amazing!)\n"
-      '#l10n 63 (Flutter\'s amazing, times 2!)\n'
+      "#l10n 63 (Flutter's amazing, times 2!)\n"
       '#l10n 64 (Flutter is "amazing"!)\n'
       '#l10n 65 (Flutter is "amazing", times 2!)\n'
       '#l10n 66 (--- es ---)\n'
@@ -143,8 +143,8 @@ void main() {
       '#l10n 88 (ES - [Hola] -Mundo- #123#)\n'
       '#l10n 89 (ES - \$!)\n'
       '#l10n 90 (ES - One \$)\n'
-      '#l10n 91 (ES - Flutter\'s amazing!)\n'
+      "#l10n 91 (ES - Flutter's amazing!)\n"
-      '#l10n 92 (ES - Flutter\'s amazing, times 2!)\n'
+      "#l10n 92 (ES - Flutter's amazing, times 2!)\n"
       '#l10n 93 (ES - Flutter is "amazing"!)\n'
       '#l10n 94 (ES - Flutter is "amazing", times 2!)\n'
       '#l10n 95 (--- es_419 ---)\n'

packages/flutter_tools/test/integration.shard/test_utils.dart

@@ -103,7 +103,7 @@ Future<void> pollForServiceExtensionValue<T>({
     }
   }
   fail(
-    'Did not find expected value for service extension \'$extension\'. All call'
+    "Did not find expected value for service extension '$extension'. All call"
-    ' attempts responded with \'$continuePollingValue\'.',
+    " attempts responded with '$continuePollingValue'.",
   );
 }

packages/flutter_tools/test/integration.shard/tool_backend_test.dart

@@ -55,6 +55,6 @@ void main() {
     });
 
     expect(result.exitCode, 1);
-    expect(result.stderr, contains('ERROR: Requested build with Flutter local engine at \'release_foo_bar\''));
+    expect(result.stderr, contains("ERROR: Requested build with Flutter local engine at 'release_foo_bar'"));
   });
 }

packages/flutter_tools/test/web.shard/expression_evaluation_web_test.dart

@@ -191,7 +191,7 @@ Future<void> checkStaticScope(FlutterTestDriver flutter) async {
 
 Future<void> evaluateErrorExpressions(FlutterTestDriver flutter) async {
   final ObjRef res = await flutter.evaluateInFrame('typo');
-  expectError(res, 'CompilationError: Getter not found: \'typo\'.\ntypo\n^^^^');
+  expectError(res, "CompilationError: Getter not found: 'typo'.\ntypo\n^^^^");
 }
 
 Future<void> evaluateTrivialExpressions(FlutterTestDriver flutter) async {

packages/flutter_tools/tool/global_count.dart

@@ -16,7 +16,7 @@ void main() {
 }
 
 final RegExp globalImport = RegExp(r"import.*(?:globals|globals_null_migrated)\.dart' as globals;");
-final RegExp globalNullUnsafeImport = RegExp('import.*globals.dart\' as globals;');
+final RegExp globalNullUnsafeImport = RegExp("import.*globals.dart' as globals;");
 
 void countGlobalImports(Directory directory) {
   int count = 0;