Can Dart or Flutter unit tests be automatically repeated? - flutter

Question

When unit testing with Dart or Flutter
If there are 100 unit tests, if you run the flutter test command, 100 test codes will be tested once.
But I want to repeat this N times.
Is there a command or way to automatically start the test again after one full test and report if the test is broken?

Answer 1

I'm not sure why this would be necessary, but I suppose you could wrap the tests you want to repeat in a for loop from 0 to N.
If you define N using int.fromEnvironment then you can pass in a value for N at the command line.
flutter test --dart-define=N=100
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:example/main.dart';
const N = int.fromEnvironment('N', defaultValue: 1);
void main() {
for (int i = 0; i < N; i++) {
testWidgets('Counter increments smoke test $i',
(WidgetTester tester) async {
// Build our app and trigger a frame.
await tester.pumpWidget(const MyApp());
// Verify that our counter starts at 0.
expect(find.text('0'), findsOneWidget);
expect(find.text('1'), findsNothing);
// Tap the '+' icon and trigger a frame.
await tester.tap(find.byIcon(Icons.add));
await tester.pump();
// Verify that our counter has incremented.
expect(find.text('0'), findsNothing);
expect(find.text('1'), findsOneWidget);
});
}
}
Alternatively you could write a program that runs flutter test N times.