Unable to test provider with async dart:io about riverpod

[rrousselGit]

Since your print only shows "loading", it seems that your test didn't wait long enough.
See https://riverpod.dev/docs/essentials/testing#awaiting-for-asynchronous-providers

[woprandi]

The example seems suitable for unit test when we test providers directly.
On widget tests we generally don't have a ProviderContainer instance and we just want to wait providers to be completed
However I wrote that.

  testWidgets('test', (tester) async {
    await tester.runAsync(() async {
      final container = ProviderContainer();
      await tester.pumpWidget(
        UncontrolledProviderScope(
          container: container,
          child: const MaterialApp(
            home: MyHomePage(
              path: 'test/file.txt',
            ),
          ),
        ),
      );

      await container.read(basicProvider('test/file.txt').future);
      await tester.pump();
      expect(find.text('test'), findsOneWidget);
    });
  });

Which passes. But I think it's little cumbersome. Either there are easier way to do or maybe add this to doc

[rrousselGit]

It is already explained in the docs how to obtain the ProviderContainer instance. And this doesn't need UncontrolledProviderScope