prefer-expect-later
Warns when a Future is passed to expect without it being awaited.
Not awaiting a Future passed to expect can lead to unexpected results. Replacing it with expectLater will show a warning for a not awaited Future.
Example
❌ Bad:
Future<void> main() async {
// LINT: Prefer using 'expectLater' with Futures.
expect(Future.value(1), 1);
}
✅ Good:
Future<void> main() async {
await expectLater(Future.value(1), 1);
}