How to Use Tags in Your Unit and Widget Tests

Ever wanted to filter tests so you only run the ones you need to?

This can be easily done using test tags.

Super useful when you have dozens/hundreds of tests and you want to target specific ones from the command line. 👇

Example Code

import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets(
    'Golden image test',
    (tester) async {
      await tester.pumpWidget(const MyApp());
      await expectLater(
        find.byType(MyApp),
        matchesGoldenFile('golden_image.png'),
      );
    },
    tags: ['golden'],
  );
}

Configuration Options

Tags are quite flexible and you can use them to tag:

• an entire test suite (with the @Tags annotation)
• a test group or an individual test (with the tags argument, as shown above)

More info on the test package documentation:

• Tagging Tests