Test Darts TypeMirror isAssignableTo

is_assignable_to_test.dart

import 'dart:mirrors';
import 'package:guinness/guinness.dart';

class Test {
  Iterable iterable;
  Iterable<int> typedIterable;
}

main() {
  describe('Dart', () {
    Test test;

    beforeEach(() => test = new Test());

    it('A list should be assignable to am Iterable', () {
      test.iterable = [2,3];
      expect(test.iterable).toEqual([2,3]);
    });

    it('A not typed list should be assignable to a typed Iterable', () {
      test.typedIterable = [2,3];
      expect(test.typedIterable).toEqual([2,3]);
    });

    describe('Mirrors', () {
      it('A list should be assignable to an Iterable', () {
        var iterable = reflectClass(Test).declarations[#iterable].type;
        var list = reflectType(List);

        expect(list.isAssignableTo(iterable)).toBeTrue();
      });

      it('A not typed list should be assignable to a typed Iterable', () {
        var iterable = reflectClass(Test).declarations[#typedIterable].type;
        var list = reflectType(List);

        expect(list.isAssignableTo(iterable)).toBeTrue();
      });
    });
  });
}