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[compass_app] Fix Command<T> to capture action exceptions as Result<T> #2889

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[compass_app] Fix Command<T> to capture action exceptions as Result<T> #2889

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2 changes: 2 additions & 0 deletions compass_app/app/lib/utils/command.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,8 @@ abstract class Command<T> extends ChangeNotifier {

try {
_result = await action();
} on Exception catch (e) {
_result = Result<T>.error(e);
} finally {
_running = false;
notifyListeners();
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11 changes: 11 additions & 0 deletions compass_app/app/test/utils/command_test.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,17 @@ void main() {
expect(command.error, true);
expect(command.result, isA<Error>());
});

test('should handle action exceptions', () async {
final command = Command0<int>(
() => Future.delayed(Duration(milliseconds: 64), () {
throw Exception('Action exceptions are captured also as Result');
}),
);
await command.execute();
expect(command.error, true);
expect(command.result, isA<Error>());
});
});

group('Command1 tests', () {
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