anchor.diff:      await _setup();
   
       await tester.pumpWidget(PolarisApp());
  -
  -    final Finder urlInputField =
  -        find.widgetWithText(TextFormField, serverURLFieldLabel);
  -    final Finder connectButton =
  -        find.widgetWithText(ElevatedButton, connectButtonLabel);
  -    final Finder disconnectButton =
  -        find.widgetWithText(FlatButton, disconnectButtonLabel);
   
       final client = getIt<Client>();
       when(client.get(apiVersionEndpoint))
  
positive.code: 
      await tester.pumpWidget(PolarisApp());
  
      final Finder connectButton =
          find.widgetWithText(ElevatedButton, connectButtonLabel);
      final Finder disconnectButton =
          find.widgetWithText(FlatButton, disconnectButtonLabel);
  
      expect(connectButton, findsNothing);
      expect(disconnectButton, findsOneWidget);
    });
  
negative.code:   }
    SharedPreferences.setMockInitialValues(preferences);
  
    getIt.allowReassignment = true;
  
    getIt.registerSingleton<Host>(await Host.create());
    getIt.registerSingleton<Client>(MockClient());
    final client = getIt<Client>();
    when(client.get(apiVersionEndpoint))
        .thenAnswer((_) async => Response(compatibleAPIVersion, 200));
    getIt.registerSingleton<API>(HttpAPI());
    getIt.registerSingleton<connection.Manager>(connection.Manager());
  }
  