anchor.diff:  // Main test method
   
   testMirrorsSerialize() {
  -  var obj = new ContainsSimpleObject();
  -  objectToJson(obj).then((string) => print("--> $string"));
  -  
  -  
     
     group('mirrors:', () {
  +    var obj = new ContainsSimpleObject();
  +    test('ContainsSimpleObject', () =>
  +        objectToJson(obj).then((string) => print("--> $string"))
  +    );
       
       /* There are two types of objects: 
        1. Those that contain ONLY 
  
positive.code:         // Test a class that contains lists
          var object = new ContainsBasicList();
          var future = objectToJson(object);
          var expectation = new Map();
            
          expectation["strings"] = object.strings;
  
negative.code:         // Test a class that contains a child object
          var object = new ContainsObject();
          var future = objectToJson(object);
          future.catchError((error) => registerException(error));
          var expectation = new Map();
          expectation["aString"] = object.aString;
          expectation["basic"] = new Map();
  