anchor.diff:      final client = getIt<Client>();
       when(client.get(apiVersionEndpoint)).thenAnswer((_) async => Response(compatibleAPIVersion, 200));
   
  -    await tester.enterText(_urlInputField, hostURL);
  +    await tester.enterText(_urlInputField, goodhostURL);
       await tester.tap(_connectButton);
       await tester.pump();
       expect(_urlInputField, findsNothing);
  
positive.code:     final client = getIt<Client>();
      when(client.get(apiVersionEndpoint)).thenAnswer((_) async => Response(compatibleAPIVersion, 200));
  
      await tester.enterText(_urlInputField, hostURL);
      await tester.tap(_connectButton);
      await tester.pump();
      expect(_urlInputField, findsNothing);
    });
  
    testWidgets('Reconnects on startup', (WidgetTester tester) async {
      await _setup(connect: true);
  
      await tester.pumpWidget(PolarisApp());
  
      expect(_connectButton, findsNothing);
      expect(_disconnectButton, findsOneWidget);
    });
  
    testWidgets('Disconnect returns to connect screen', (WidgetTester tester) async {
  
negative.code:     final client = getIt<Client>();
      when(client.get(apiVersionEndpoint)).thenAnswer((_) async => Response(incompatibleAPIVersion, 200));
  
      await tester.enterText(_urlInputField, incompatibleHostURL);
      await tester.tap(_connectButton);
      await tester.pump();
      expect(find.widgetWithText(SnackBar, errorAPIVersion), findsOneWidget);
  