anchor.diff:      context.responseHeaders['my-Own-header'] = 'aHeaderValue';
       return message;
     }
  -
   }
   
   class PutAPI {
  
positive.code:             'name': 'testAPI',
              'version': 'v1',
              'discoveryRestUrl':
              'http://server/discovery/v1/apis/testAPI/v1/rest',
              'discoveryLink': './discovery/v1/apis/testAPI/v1/rest',
              'preferred': true
            }
  
negative.code:     test('minmax', () async {
        var body = {'aBoundedInt': 5};
        HttpApiResponse response =
            await _sendRequest('POST', 'post/minmax', body: body);
        expect(response.status, HttpStatus.OK);
        var resultBody = await _decodeBody(response.body);
        expect(resultBody, body);
  