feat: redesign and lots of progress

test/model/shifter_types_test.dart

@@ -0,0 +1,110 @@
+import 'package:abawo_bt_app/model/shifter_types.dart';
+import 'package:cbor/simple.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('CentralStatus.fromCborBytes', () {
+    test('decodes firmware packed status with FTMS ready', () {
+      final status = CentralStatus.fromCborBytes(
+        _packedStatusBytes(
+          controlVariant: 1,
+          trainerVariant: 5,
+          hasSavedBond: true,
+          connectedTrainerAddr: [1, 2, 3, 4, 5, 6],
+        ),
+      );
+
+      expect(status.control, ControlConnectionState.connected);
+      expect(status.trainer.state, TrainerConnectionState.ftmsReady);
+      expect(status.trainer.errorCode, isNull);
+      expect(status.hasSavedBond, isTrue);
+      expect(status.connectedTrainerAddr, [1, 2, 3, 4, 5, 6]);
+      expect(status.lastFailure, isNull);
+    });
+
+    test('decodes all firmware packed trainer unit variants', () {
+      final expectedStates = <int, TrainerConnectionState>{
+        0: TrainerConnectionState.idle,
+        1: TrainerConnectionState.connecting,
+        2: TrainerConnectionState.pairing,
+        3: TrainerConnectionState.connected,
+        4: TrainerConnectionState.discoveringFtms,
+        5: TrainerConnectionState.ftmsReady,
+        6: TrainerConnectionState.error,
+      };
+
+      for (final entry in expectedStates.entries) {
+        final status = CentralStatus.fromCborBytes(
+          _packedStatusBytes(
+            controlVariant: 1,
+            trainerVariant: entry.key,
+          ),
+        );
+
+        expect(
+          status.trainer.state,
+          entry.value,
+          reason: 'trainer variant ${entry.key} should decode correctly',
+        );
+      }
+    });
+
+    test('decodes firmware packed trainer error newtype variant', () {
+      final status = CentralStatus.fromCborBytes(
+        _packedStatusBytes(
+          controlVariant: 1,
+          trainerRaw: [6, errorFtmsRequiredCharMissing],
+          lastFailure: errorFtmsRequiredCharMissing,
+        ),
+      );
+
+      expect(status.trainer.state, TrainerConnectionState.error);
+      expect(status.trainer.errorCode, errorFtmsRequiredCharMissing);
+      expect(status.lastFailure, errorFtmsRequiredCharMissing);
+    });
+
+    test('decodes non-packed status maps with text keys', () {
+      final status = CentralStatus.fromCborBytes(
+        cbor.encode({
+          'control': 'Connected',
+          'trainer': 'FtmsReady',
+          'has_saved_bond': false,
+          'connected_trainer_addr': [10, 11, 12, 13, 14, 15],
+          'last_failure': null,
+        }),
+      );
+
+      expect(status.control, ControlConnectionState.connected);
+      expect(status.trainer.state, TrainerConnectionState.ftmsReady);
+      expect(status.connectedTrainerAddr, [10, 11, 12, 13, 14, 15]);
+    });
+
+    test('throws for invalid status payloads instead of hiding them', () {
+      expect(
+        () => CentralStatus.fromCborBytes(const []),
+        throwsFormatException,
+      );
+      expect(
+        () => CentralStatus.fromCborBytes(cbor.encode([1, 2, 3])),
+        throwsFormatException,
+      );
+    });
+  });
+}
+
+List<int> _packedStatusBytes({
+  required int controlVariant,
+  int? trainerVariant,
+  Object? trainerRaw,
+  bool hasSavedBond = false,
+  List<int>? connectedTrainerAddr,
+  int? lastFailure,
+}) {
+  return cbor.encode({
+    0: controlVariant,
+    1: trainerRaw ?? trainerVariant,
+    2: hasSavedBond,
+    3: connectedTrainerAddr,
+    4: lastFailure,
+  });
+}

test/widget_test.dart

@@ -1,30 +1,18 @@
-// This is a basic Flutter widget test.
-//
-// To perform an interaction with a widget in your test, use the WidgetTester
-// utility in the flutter_test package. For example, you can send tap and scroll
-// gestures. You can also use WidgetTester to find child widgets in the widget
-// tree, read text, and verify that the values of widget properties are correct.
-
+import 'package:abawo_bt_app/widgets/app_shell.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:abawo_bt_app/main.dart';
-
 void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(const AbawoBtApp());
+  testWidgets('renders app shell', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const MaterialApp(
+        home: AppShell(
+          currentLocation: '/devices',
+          child: Text('Devices'),
+        ),
+      ),
+    );
 
-    // Verify that our counter starts at 0.
-    expect(find.text('0'), findsOneWidget);
-    expect(find.text('1'), findsNothing);
-
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
-    await tester.pump();
-
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
+    expect(find.text('Devices'), findsWidgets);
   });
 }