A util function that can do a Parameterized Test with Dart like `each` in Jest.

parameterized-test-group.dart

import 'package:meta/meta.dart';

@isTestGroup
void Function(void Function(T param) test) each<T>(
        String description, List<T> params) =>
    (Function(T) test) => group(description, () => params.forEach(test));

void example() {
  each("multiply", [
    (a: 0, b: 0, expected: 0),
    (a: 1, b: 1, expected: 1),
    (a: 2, b: 2, expected: 4),
    (a: 3, b: 3, expected: 9),
  ])((param) {
    test('${param.a} * ${param.b} = ${param.expected}', () {
      expect(multiply(param.a, param.b), param.expected);
    });
  });
}