The command dart pub add test --dev adds the test package to your project as a development dependency. The test package provides a testing framework for Dart.
dart pub add test --dev
To use the test package, you need to import it into your code:
import 'package:test/test.dart';
You can then write tests using the test() function:
void main() {
test('This is a test', () {
// Your test code goes here.
});
}
To use the test package, please see the documentation: test package.