anchor.diff:    });
   
     test('should get contacts', () async {
  -    final Iterable contacts = await ContactsService.getContacts();
  +    final contacts = await ContactsService.getContacts();
       expect(contacts.length, 2);
       expect(contacts, everyElement(isInstanceOf<Contact>()));
       expect(contacts.toList()[0].givenName, 'givenName1');
       expect(contacts.toList()[1].postalAddresses.toList()[0].label, 'label');
       expect(contacts.toList()[1].emails.toList()[0].label, 'label');
  +    expect(contacts.toList()[1].birthday, DateTime(1994, 2, 1));
     });
   
     test('should add contact', () async {
  
positive.code:             'country': null
            }
          ],
          'avatar': null
        },
      ),
    ]);
  
negative.code:       "emails": [],
        "phones": [],
        "postalAddresses": [],
        "avatar": null,
        "birthday": null
      });
    });
  }
  