考虑以下提供程序：

final provider = FutureProvider.autoDispose<Metadata>(
  (ref) async {
    final response = await ref.read(service).run();
    return response;
  },
  dependencies: [service],
  name: 'provider',
);

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我想模拟这个提供程序，以便能够操纵它的状态（AsyncData，AsyncError等）。目前我有以下代码：

abstract class _Create<T> {
  FutureOr<T> call(AutoDisposeFutureProviderRef<T> ref);
}

class _ProviderCreate extends Mock implements _Create<Metadata> {}

test('test', () async {
      final mockFunction = _ProviderCreate();
      final container = ProviderContainer(
        overrides: [
          provider.overrideWith(mockFunction),
        ],
      );
      final listener = ListenerMock<HomeScreenMetadata>();
      // homePageProvider is a second provider that watch `provider`
      container.listen<HomePageMetadata>(homePageProvider, listener, fireImmediately: true);

      when(() => mockFunction.call(any())).thenAnswer((_) async {
        // This mock is never called
        print("called");
        ...
      });

      await container.pump();
      
      const homePageUnloaded = HomePageMetadata(loaded: false);
      const homePageLoaded = HomeScreenMetadata(loaded: true);

      verifyInOrder(
        [
          () => listener(null, homePageUnloaded),
          () => listener(homePageUnloaded, homePageLoaded),
        ],
      );

      verifyNoMoreInteractions(listener);
    });

型
但是由于某种原因，mockFunction的mock从未被调用。