anchor.diff:  import 'package:http/http.dart' as http;
   
   main() {
  -
     group("Application lifecycle", () {
       var app = new Application<TPipeline>();
   
  
positive.code:     });
  
      test("Application starts", () async {
        await app.start();
        expect(app.supervisors.length, 1);
      });
  
      test("Application responds to request", () async {
  
negative.code:         expect(e, isNotNull);
        }
  
        await app.start(runOnMainIsolate: true);
        var resp = await http.get("http://localhost:8080/t");
        expect(resp.statusCode, 200);
      });
  