Add TargetPlatform.macOS tests to cupertino, foundation, rendering, and...

Add TargetPlatform.macOS tests to cupertino, foundation, rendering, and services libraries. (#45644)

packages/flutter/test/cupertino/picker_test.dart

@@ -153,7 +153,6 @@ void main() {
     testWidgets(
       'scrolling calls onSelectedItemChanged and triggers haptic feedback',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
         final List<int> selectedItems = <int>[];
         final List<MethodCall> systemCalls = <MethodCall>[];
 
@@ -200,15 +199,11 @@ void main() {
             arguments: 'HapticFeedbackType.selectionClick',
           ),
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: TargetPlatformVariant.only(TargetPlatform.iOS));
 
     testWidgets(
       'do not trigger haptic effects on non-iOS devices',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.android;
         final List<int> selectedItems = <int>[];
         final List<MethodCall> systemCalls = <MethodCall>[];
 
@@ -238,13 +233,9 @@ void main() {
         await tester.drag(find.text('0'), const Offset(0.0, -100.0));
         expect(selectedItems, <int>[1]);
         expect(systemCalls, isEmpty);
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: TargetPlatformVariant(TargetPlatform.values.where((TargetPlatform platform) => platform != TargetPlatform.iOS).toSet()));
 
     testWidgets('a drag in between items settles back', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
       final FixedExtentScrollController controller =
           FixedExtentScrollController(initialItem: 10);
       final List<int> selectedItems = <int>[];
@@ -297,11 +288,9 @@ void main() {
         moreOrLessEquals(350.0, epsilon: 0.5),
       );
       expect(selectedItems, <int>[9]);
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('a big fling that overscrolls springs back', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
       final FixedExtentScrollController controller =
           FixedExtentScrollController(initialItem: 10);
       final List<int> selectedItems = <int>[];
@@ -357,8 +346,6 @@ void main() {
         // Falling back to 0 shouldn't produce more callbacks.
         <int>[8, 6, 4, 2, 0],
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
   });
 }

packages/flutter/test/cupertino/refresh_test.dart

@@ -74,8 +74,6 @@ void main() {
 
   final VoidCallback uiTestGroup = () {
     testWidgets("doesn't invoke anything without user interaction", (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       await tester.pumpWidget(
         Directionality(
           textDirection: TextDirection.ltr,
@@ -96,13 +94,9 @@ void main() {
         tester.getTopLeft(find.widgetWithText(Container, '0')),
         const Offset(0.0, 0.0),
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('calls the indicator builder when starting to overscroll', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       await tester.pumpWidget(
         Directionality(
           textDirection: TextDirection.ltr,
@@ -136,15 +130,11 @@ void main() {
         tester.getTopLeft(find.widgetWithText(Container, '0')),
         const Offset(0.0, 50.0),
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       "don't call the builder if overscroll doesn't move slivers like on Android",
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.android;
-
         await tester.pumpWidget(
           Directionality(
             textDirection: TextDirection.ltr,
@@ -169,14 +159,9 @@ void main() {
           tester.getTopLeft(find.widgetWithText(Container, '0')),
           const Offset(0.0, 0.0),
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: TargetPlatformVariant.only(TargetPlatform.android));
 
     testWidgets('let the builder update as canceled drag scrolls away', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       await tester.pumpWidget(
         Directionality(
           textDirection: TextDirection.ltr,
@@ -228,13 +213,9 @@ void main() {
         tester.getTopLeft(find.widgetWithText(Container, '0')),
         const Offset(0.0, 0.0),
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('drag past threshold triggers refresh task', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       final List<MethodCall> platformCallLog = <MethodCall>[];
 
       SystemChannels.platform.setMockMethodCallHandler((MethodCall methodCall) async {
@@ -295,14 +276,11 @@ void main() {
         platformCallLog.last,
         isMethodCall('HapticFeedback.vibrate', arguments: 'HapticFeedbackType.mediumImpact'),
       );
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'refreshing task keeps the sliver expanded forever until done',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         await tester.pumpWidget(
           Directionality(
             textDirection: TextDirection.ltr,
@@ -370,15 +348,11 @@ void main() {
           60.0, // Default value.
         ));
         verifyNoMoreInteractions(mockHelper);
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'refreshing task keeps the sliver expanded forever until completes with error',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
         final FlutterError error = FlutterError('Oops');
         double errorCount = 0;
 
@@ -460,14 +434,9 @@ void main() {
             errorCount++;
           },
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('expanded refreshing sliver scrolls normally', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       refreshIndicator = const Center(child: Text('-1'));
 
       await tester.pumpWidget(
@@ -541,13 +510,9 @@ void main() {
         tester.getRect(find.widgetWithText(Center, '0')),
         const Rect.fromLTRB(0.0, 60.0, 800.0, 260.0),
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('expanded refreshing sliver goes away when done', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       refreshIndicator = const Center(child: Text('-1'));
 
       await tester.pumpWidget(
@@ -616,13 +581,9 @@ void main() {
         tester.getRect(find.widgetWithText(Center, '0')),
         const Rect.fromLTRB(0.0, 0.0, 800.0, 200.0),
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('builder still called when sliver snapped back more than 90%', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       refreshIndicator = const Center(child: Text('-1'));
 
       await tester.pumpWidget(
@@ -704,15 +665,11 @@ void main() {
         60.0, // Default value.
       ));
       expect(find.text('-1'), findsOneWidget);
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'retracting sliver during done cannot be pulled to refresh again until fully retracted',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         refreshIndicator = const Center(child: Text('-1'));
 
         await tester.pumpWidget(
@@ -792,16 +749,11 @@ void main() {
           100.0, // Default value.
           60.0, // Default value.
       ));
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'sliver held in overscroll when task finishes completes normally',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         refreshIndicator = const Center(child: Text('-1'));
 
         await tester.pumpWidget(
@@ -848,10 +800,7 @@ void main() {
           tester.getRect(find.widgetWithText(Center, '0')),
           const Rect.fromLTRB(0.0, 0.0, 800.0, 200.0),
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'sliver scrolled away when task completes properly removes itself',
@@ -861,8 +810,6 @@ void main() {
           // the indicator can be scrolled away while refreshing.
           return;
         }
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         refreshIndicator = const Center(child: Text('-1'));
 
         await tester.pumpWidget(
@@ -940,16 +887,11 @@ void main() {
           tester.getRect(find.widgetWithText(Center, '0')),
           const Rect.fromLTRB(0.0, 0.0, 800.0, 200.0),
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       "don't do anything unless it can be overscrolled at the start of the list",
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         refreshIndicator = const Center(child: Text('-1'));
 
         await tester.pumpWidget(
@@ -973,16 +915,11 @@ void main() {
         await tester.fling(find.byType(Container).first, const Offset(0.0, -200.0), 3000.0);
 
         verifyNoMoreInteractions(mockHelper);
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'without an onRefresh, builder is called with arm for one frame then sliver goes away',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         refreshIndicator = const Center(child: Text('-1'));
 
         await tester.pumpWidget(
@@ -1024,10 +961,7 @@ void main() {
           tester.getRect(find.widgetWithText(Center, '0')),
           const Rect.fromLTRB(0.0, 0.0, 800.0, 200.0),
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('Should not crash when dragged', (WidgetTester tester) async {
       await tester.pumpWidget(
@@ -1051,13 +985,11 @@ void main() {
       await tester.pump();
 
       expect(tester.takeException(), isNull);
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
   };
 
   final VoidCallback stateMachineTestGroup = () {
     testWidgets('starts in inactive state', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       await tester.pumpWidget(
         Directionality(
           textDirection: TextDirection.ltr,
@@ -1076,13 +1008,9 @@ void main() {
         CupertinoSliverRefreshControl.state(tester.element(find.byType(LayoutBuilder, skipOffstage: false))),
         RefreshIndicatorMode.inactive,
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('goes to drag and returns to inactive in a small drag', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       await tester.pumpWidget(
         Directionality(
           textDirection: TextDirection.ltr,
@@ -1111,13 +1039,9 @@ void main() {
         CupertinoSliverRefreshControl.state(tester.element(find.byType(LayoutBuilder, skipOffstage: false))),
         RefreshIndicatorMode.inactive,
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('goes to armed the frame it passes the threshold', (WidgetTester tester) async {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
       await tester.pumpWidget(
         Directionality(
           textDirection: TextDirection.ltr,
@@ -1147,15 +1071,11 @@ void main() {
         CupertinoSliverRefreshControl.state(tester.element(find.byType(LayoutBuilder))),
         RefreshIndicatorMode.armed,
       );
-
-      debugDefaultTargetPlatformOverride = null;
-    });
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'goes to refresh the frame it crossed back the refresh threshold',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         await tester.pumpWidget(
           Directionality(
             textDirection: TextDirection.ltr,
@@ -1191,16 +1111,11 @@ void main() {
           CupertinoSliverRefreshControl.state(tester.element(find.byType(LayoutBuilder))),
           RefreshIndicatorMode.refresh,
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'goes to done internally as soon as the task finishes',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         await tester.pumpWidget(
           Directionality(
             textDirection: TextDirection.ltr,
@@ -1243,16 +1158,11 @@ void main() {
           CupertinoSliverRefreshControl.state(tester.element(find.byType(LayoutBuilder))),
           RefreshIndicatorMode.done,
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'goes back to inactive when retracting back past 10% of arming distance',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         await tester.pumpWidget(
           Directionality(
             textDirection: TextDirection.ltr,
@@ -1306,16 +1216,11 @@ void main() {
           CupertinoSliverRefreshControl.state(tester.element(find.byType(LayoutBuilder))),
           RefreshIndicatorMode.inactive,
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       'goes back to inactive if already scrolled away when task completes',
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         await tester.pumpWidget(
           Directionality(
             textDirection: TextDirection.ltr,
@@ -1370,16 +1275,11 @@ void main() {
           tester.getTopLeft(find.widgetWithText(Container, '0')).dy,
           moreOrLessEquals(-145.0332383665717),
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets(
       "don't have to build any indicators or occupy space during refresh",
       (WidgetTester tester) async {
-        debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
         refreshIndicator = const Center(child: Text('-1'));
 
         await tester.pumpWidget(
@@ -1425,10 +1325,7 @@ void main() {
           CupertinoSliverRefreshControl.state(tester.element(find.byType(LayoutBuilder, skipOffstage: false))),
           RefreshIndicatorMode.inactive,
         );
-
-        debugDefaultTargetPlatformOverride = null;
-      },
-    );
+    }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
     testWidgets('buildSimpleRefreshIndicator dark mode', (WidgetTester tester) async {
       const CupertinoDynamicColor color = CupertinoColors.inactiveGray;

packages/flutter/test/cupertino/switch_test.dart

@@ -43,7 +43,6 @@ void main() {
   });
 
   testWidgets('Switch emits light haptic vibration on tap', (WidgetTester tester) async {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
     final Key switchKey = UniqueKey();
     bool value = false;
 
@@ -80,11 +79,9 @@ void main() {
 
     expect(log, hasLength(1));
     expect(log.single, isMethodCall('HapticFeedback.vibrate', arguments: 'HapticFeedbackType.lightImpact'));
-    debugDefaultTargetPlatformOverride = null;
-  });
+  }, variant: TargetPlatformVariant.only(TargetPlatform.iOS));
 
   testWidgets('Using other widgets that rebuild the switch will not cause vibrations', (WidgetTester tester) async {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
     final Key switchKey = UniqueKey();
     final Key switchKey2 = UniqueKey();
     bool value = false;
@@ -152,11 +149,9 @@ void main() {
 
     expect(log, hasLength(4));
     expect(log[3], isMethodCall('HapticFeedback.vibrate', arguments: 'HapticFeedbackType.lightImpact'));
-    debugDefaultTargetPlatformOverride = null;
-  });
+  }, variant: TargetPlatformVariant.only(TargetPlatform.iOS));
 
   testWidgets('Haptic vibration triggers on drag', (WidgetTester tester) async {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
     bool value = false;
     final List<MethodCall> log = <MethodCall>[];
 
@@ -191,11 +186,9 @@ void main() {
 
     expect(log, hasLength(1));
     expect(log[0], isMethodCall('HapticFeedback.vibrate', arguments: 'HapticFeedbackType.lightImpact'));
-    debugDefaultTargetPlatformOverride = null;
-  });
+  }, variant: TargetPlatformVariant.only(TargetPlatform.iOS));
 
   testWidgets('No haptic vibration triggers from a programmatic value change', (WidgetTester tester) async {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
     final Key switchKey = UniqueKey();
     bool value = false;
 
@@ -244,8 +237,7 @@ void main() {
     await tester.pump();
 
     expect(log, hasLength(0));
-    debugDefaultTargetPlatformOverride = null;
-  });
+  }, variant: TargetPlatformVariant.only(TargetPlatform.iOS));
 
   testWidgets('Switch can drag (LTR)', (WidgetTester tester) async {
     bool value = false;

packages/flutter/test/cupertino/text_field_test.dart

@@ -425,9 +425,7 @@ void main() {
     expect(editableText.cursorOffset, const Offset(-2.0 / 3.0, 0));
   });
 
-  testWidgets('Cursor animates on iOS', (WidgetTester tester) async {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
+  testWidgets('Cursor animates', (WidgetTester tester) async {
     await tester.pumpWidget(
       const CupertinoApp(
         home: CupertinoTextField(),
@@ -459,13 +457,9 @@ void main() {
     await tester.pump(const Duration(milliseconds: 50));
 
     expect(renderEditable.cursorColor.alpha, 0);
+  }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS }));
 
-    debugDefaultTargetPlatformOverride = null;
-  });
-
-  testWidgets('Cursor radius is 2.0 on iOS', (WidgetTester tester) async {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
+  testWidgets('Cursor radius is 2.0', (WidgetTester tester) async {
     await tester.pumpWidget(
       const CupertinoApp(
         home: CupertinoTextField(),
@@ -476,9 +470,7 @@ void main() {
     final RenderEditable renderEditable = editableTextState.renderEditable;
 
     expect(renderEditable.cursorRadius, const Radius.circular(2.0));
-
-    debugDefaultTargetPlatformOverride = null;
-  });
+  }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS }));
 
   testWidgets('Cupertino cursor android golden', (WidgetTester tester) async {
     final Widget widget = CupertinoApp(
@@ -507,9 +499,7 @@ void main() {
     );
   });
 
-  testWidgets('Cupertino cursor iOS golden', (WidgetTester tester) async {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-
+  testWidgets('Cupertino cursor golden', (WidgetTester tester) async {
     final Widget widget = CupertinoApp(
       home: Center(
         child: RepaintBoundary(
@@ -530,12 +520,13 @@ void main() {
     await tester.tapAt(textOffsetToPosition(tester, testValue.length));
     await tester.pumpAndSettle();
 
-    debugDefaultTargetPlatformOverride = null;
     await expectLater(
       find.byKey(const ValueKey<int>(1)),
-      matchesGoldenFile('text_field_cursor_test.cupertino.1.png'),
+      matchesGoldenFile(
+        'text_field_cursor_test.cupertino_${describeEnum(debugDefaultTargetPlatformOverride).toLowerCase()}.1.png',
+      ),
     );
-  });
+  }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
   testWidgets(
     'can control text content via controller',
@@ -2946,8 +2937,7 @@ void main() {
     expect(editableText.cursorColor.value, 0x87654321);
   });
 
-  testWidgets('iOS shows selection handles', (WidgetTester tester) async {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
+  testWidgets('shows selection handles', (WidgetTester tester) async {
     const String testText = 'lorem ipsum';
     final TextEditingController controller = TextEditingController(text: testText);
 
@@ -2977,9 +2967,7 @@ void main() {
 
     expect(left.opacity.value, equals(1.0));
     expect(right.opacity.value, equals(1.0));
-
-    debugDefaultTargetPlatformOverride = null;
-  });
+  }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS,  TargetPlatform.macOS }));
 
   testWidgets('when CupertinoTextField would be blocked by keyboard, it is shown with enough space for the selection handle', (WidgetTester tester) async {
     final ScrollController scrollController = ScrollController();

packages/flutter/test/foundation/service_extensions_test.dart

@@ -489,43 +489,51 @@ void main() {
     extensionChangedEvent = extensionChangedEvents.last;
     expect(extensionChangedEvent['extension'], 'ext.flutter.platformOverride');
     expect(extensionChangedEvent['value'], 'iOS');
+    result = await hasReassemble(binding.testExtension('platformOverride', <String, String>{'value': 'macOS'}));
+    expect(result, <String, String>{'value': 'macOS'});
+    expect(binding.reassembled, 2);
+    expect(defaultTargetPlatform, TargetPlatform.macOS);
+    expect(extensionChangedEvents.length, 2);
+    extensionChangedEvent = extensionChangedEvents.last;
+    expect(extensionChangedEvent['extension'], 'ext.flutter.platformOverride');
+    expect(extensionChangedEvent['value'], 'macOS');
     result = await hasReassemble(binding.testExtension('platformOverride', <String, String>{'value': 'android'}));
     expect(result, <String, String>{'value': 'android'});
-    expect(binding.reassembled, 2);
+    expect(binding.reassembled, 3);
     expect(defaultTargetPlatform, TargetPlatform.android);
-    expect(extensionChangedEvents.length, 2);
+    expect(extensionChangedEvents.length, 3);
     extensionChangedEvent = extensionChangedEvents.last;
     expect(extensionChangedEvent['extension'], 'ext.flutter.platformOverride');
     expect(extensionChangedEvent['value'], 'android');
     result = await hasReassemble(binding.testExtension('platformOverride', <String, String>{'value': 'fuchsia'}));
     expect(result, <String, String>{'value': 'fuchsia'});
-    expect(binding.reassembled, 3);
+    expect(binding.reassembled, 4);
     expect(defaultTargetPlatform, TargetPlatform.fuchsia);
-    expect(extensionChangedEvents.length, 3);
+    expect(extensionChangedEvents.length, 4);
     extensionChangedEvent = extensionChangedEvents.last;
     expect(extensionChangedEvent['extension'], 'ext.flutter.platformOverride');
     expect(extensionChangedEvent['value'], 'fuchsia');
     result = await hasReassemble(binding.testExtension('platformOverride', <String, String>{'value': 'default'}));
     expect(result, <String, String>{'value': 'android'});
-    expect(binding.reassembled, 4);
+    expect(binding.reassembled, 5);
     expect(defaultTargetPlatform, TargetPlatform.android);
-    expect(extensionChangedEvents.length, 4);
+    expect(extensionChangedEvents.length, 5);
     extensionChangedEvent = extensionChangedEvents.last;
     expect(extensionChangedEvent['extension'], 'ext.flutter.platformOverride');
     expect(extensionChangedEvent['value'], 'android');
     result = await hasReassemble(binding.testExtension('platformOverride', <String, String>{'value': 'iOS'}));
     expect(result, <String, String>{'value': 'iOS'});
-    expect(binding.reassembled, 5);
+    expect(binding.reassembled, 6);
     expect(defaultTargetPlatform, TargetPlatform.iOS);
-    expect(extensionChangedEvents.length, 5);
+    expect(extensionChangedEvents.length, 6);
     extensionChangedEvent = extensionChangedEvents.last;
     expect(extensionChangedEvent['extension'], 'ext.flutter.platformOverride');
     expect(extensionChangedEvent['value'], 'iOS');
     result = await hasReassemble(binding.testExtension('platformOverride', <String, String>{'value': 'bogus'}));
     expect(result, <String, String>{'value': 'android'});
-    expect(binding.reassembled, 6);
+    expect(binding.reassembled, 7);
     expect(defaultTargetPlatform, TargetPlatform.android);
-    expect(extensionChangedEvents.length, 6);
+    expect(extensionChangedEvents.length, 7);
     extensionChangedEvent = extensionChangedEvents.last;
     expect(extensionChangedEvent['extension'], 'ext.flutter.platformOverride');
     expect(extensionChangedEvent['value'], 'android');

packages/flutter/test/rendering/proxy_box_test.dart

@@ -81,7 +81,11 @@ void main() {
   });
 
   test('RenderPhysicalModel compositing on non-Fuchsia', () {
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
+    for (final TargetPlatform platform in TargetPlatform.values) {
+      if (platform == TargetPlatform.fuchsia) {
+        continue;
+      }
+      debugDefaultTargetPlatformOverride = platform;
 
       final RenderPhysicalModel root = RenderPhysicalModel(color: const Color(0xffff00ff));
       layout(root, phase: EnginePhase.composite);
@@ -95,7 +99,7 @@ void main() {
       root.elevation = 0.0;
       pumpFrame(phase: EnginePhase.composite);
       expect(root.needsCompositing, isTrue);
-
+    }
     debugDefaultTargetPlatformOverride = null;
   });
 
@@ -121,11 +125,13 @@ void main() {
   });
 
   group('RenderPhysicalShape', () {
-    setUp(() {
-      debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
-    });
-
     test('shape change triggers repaint', () {
+      for (final TargetPlatform platform in TargetPlatform.values) {
+        if (platform == TargetPlatform.fuchsia) {
+          continue;
+        }
+        debugDefaultTargetPlatformOverride = platform;
+
         final RenderPhysicalShape root = RenderPhysicalShape(
           color: const Color(0xffff00ff),
           clipper: const ShapeBorderClipper(shape: CircleBorder()),
@@ -140,9 +146,16 @@ void main() {
         // Different shape triggers repaint.
         root.clipper = const ShapeBorderClipper(shape: StadiumBorder());
         expect(root.debugNeedsPaint, isTrue);
+      }
+      debugDefaultTargetPlatformOverride = null;
     });
 
     test('compositing on non-Fuchsia', () {
+      for (final TargetPlatform platform in TargetPlatform.values) {
+        if (platform == TargetPlatform.fuchsia) {
+          continue;
+        }
+        debugDefaultTargetPlatformOverride = platform;
         final RenderPhysicalShape root = RenderPhysicalShape(
           color: const Color(0xffff00ff),
           clipper: const ShapeBorderClipper(shape: CircleBorder()),
@@ -158,7 +171,7 @@ void main() {
         root.elevation = 0.0;
         pumpFrame(phase: EnginePhase.composite);
         expect(root.needsCompositing, isTrue);
-
+      }
       debugDefaultTargetPlatformOverride = null;
     });
   });

packages/flutter/test/rendering/viewport_test.dart

@@ -1145,10 +1145,8 @@ void main() {
     );
   });
 
-  testWidgets('Handles infinite constraints when TargetPlatform is iOS', (WidgetTester tester) async {
+  testWidgets('Handles infinite constraints when TargetPlatform is iOS or macOS', (WidgetTester tester) async {
     // regression test for https://github.com/flutter/flutter/issues/45866
-    final TargetPlatform oldTargetPlatform = debugDefaultTargetPlatformOverride;
-    debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
     await tester.pumpWidget(
       Directionality(
         textDirection: TextDirection.ltr,
@@ -1177,6 +1175,5 @@ void main() {
     expect(find.text('b'), findsOneWidget);
     await tester.drag(find.text('b'), const Offset(0, 200));
     await tester.pumpAndSettle();
-    debugDefaultTargetPlatformOverride = oldTargetPlatform;
-  });
+  }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS }));
 }

packages/flutter_test/test/widget_tester_test.dart

@@ -744,7 +744,6 @@ void main() {
       }
     }, variant: TargetPlatformVariant.all());
   });
-
 }
 
 class FakeMatcher extends AsyncMatcher {