anchor.diff:      expect(Provider.of<int>(context, listen: false), equals(42));
     });
   
  -  testWidgets('Provider throws if no child is provided with default constructor', (tester) async {
  +  testWidgets('InheritedProvider throws if no child is provided with default constructor', (tester) async {
       await tester.pumpWidget(
         InheritedProvider<int>(
           create: (_) => 42,
  
positive.code:     );
    });
  
    testWidgets('Provider throws if no child is provided with value constructor', (tester) async {
      await tester.pumpWidget(
        InheritedProvider<int>.value(
          value: 42,
  
negative.code:         (source) => source.toString(),
          'toString',
          endsWith('InheritedProvider<int> used outside of MultiProvider must specify a child'),
        ),
      );
    });
  
    testWidgets('DeferredInheritedProvider throws if no child is provided with default constructor', (tester) async {
      await tester.pumpWidget(
        DeferredInheritedProvider<int, int>(
            create: (_) => 42,
            startListening: (_, __, ___, ____) {
              return () {};
            }),
      );
  
      expect(
        tester.takeException(),
        isA<AssertionError>().having(
          (source) => source.toString(),
          'toString',
          endsWith('DeferredInheritedProvider<int, int> used outside of MultiProvider must specify a child'),
        ),
      );
    });
  
    testWidgets('DeferredInheritedProvider throws if no child is provided with value constructor', (tester) async {
      await tester.pumpWidget(
        DeferredInheritedProvider<int, int>.value(
            value: 42,
            startListening: (_, __, ___, ____) {
              return () {};
            }),
      );
  
      expect(
        tester.takeException(),
        isA<AssertionError>().having(
          (source) => source.toString(),
          'toString',
          endsWith('DeferredInheritedProvider<int, int> used outside of MultiProvider must specify a child'),
        ),
      );
    });
  