text: import DiBuilder from '../DiBuilder';
  import Parser from './Parser';
  
  describe('Parser', () => {
      it('should return container', () => {
          const container = new DiBuilder();
          const parser = new Parser();
          expect(parser.parse(container)).toBe(container);
      });
      it('should return null on non-container', () => {
          const parser = new Parser();
          expect(parser.parse({a: 123})).toBeNull();
      });
  });
  