refactor(state): extract recording and search state, scope screen rebuilds

- New EstadoGrabacion owns the recording service, subscription, directory/size preferences and open-file actions - New EstadoBusqueda owns search, nearby stations, pagination and the min-bitrate filter - New orden_emisoras.dart with the OrdenEmisoras enum, shared sorter and list identity memoization so context.select comparisons work on derived lists - Large screens (inicio, buscar, favoritos, ajustes, reproductor) consume scoped selects/dedicated notifiers instead of root context.watch<EstadoRadio>, so audio buffer events no longer rebuild whole screens - Remove all 15 TODO(S4b) compat members from EstadoRadio; consumers use the dedicated providers. EstadoRadio drops from ~1121 to 753 lines, keeping playback/stations/favorites orchestration - 8 new tests including a rebuild-scoping probe (110 total green), flutter analyze clean
2026-06-11 21:43:18 +02:00
parent 0416b301b2
commit 52855e75c2
17 changed files with 1195 additions and 643 deletions
@@ -0,0 +1,100 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/estado/estado_busqueda.dart';
+import 'package:pluriwave/estado/estado_ecualizador.dart';
+import 'package:pluriwave/estado/estado_grabacion.dart';
+import 'package:pluriwave/estado/estado_radio.dart';
+import 'package:pluriwave/l10n/gen/app_localizations.dart';
+import 'package:pluriwave/modelos/preset_ecualizador.dart';
+import 'package:pluriwave/pantallas/pantalla_inicio.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../helpers/fakes.dart';
+
+/// S4-R5-A: changing the EQ preset must NOT rebuild PantallaInicio.
+void main() {
+  setUp(() {
+    SharedPreferences.setMockInitialValues({});
+  });
+
+  testWidgets('cambiar el preset de EQ no marca PantallaInicio para rebuild', (
+    tester,
+  ) async {
+    tester.view.physicalSize = const Size(1440, 3200);
+    tester.view.devicePixelRatio = 1.0;
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+
+    final radio = FakeServicioRadio(
+      populares: [emisoraDemo(uuid: 'api-1', nombre: 'API Uno')],
+      popularesPorLlamada: [
+        [emisoraDemo(uuid: 'api-1', nombre: 'API Uno')],
+        [emisoraDemo(uuid: 'api-2', nombre: 'API Dos')],
+      ],
+    );
+    final estado = EstadoRadio(
+      audio: FakeServicioAudio(),
+      favoritos: FakeServicioFavoritos(),
+      radio: radio,
+      servicioEcualizador: FakeServicioEcualizador(),
+      resolverArchivoCustom:
+          () async => File(
+            '${Directory.current.path}/test/fixtures/emisoras_custom_vacio.json',
+          ),
+      iniciarAutomaticamente: false,
+    );
+    addTearDown(estado.dispose);
+    await tester.runAsync(estado.inicializar);
+
+    await tester.pumpWidget(
+      MultiProvider(
+        providers: [
+          ChangeNotifierProvider<EstadoRadio>.value(value: estado),
+          ListenableProvider<EstadoEcualizador>.value(
+            value: estado.ecualizador,
+          ),
+          ListenableProvider<EstadoBusqueda>.value(value: estado.busqueda),
+          ListenableProvider<EstadoGrabacion>.value(value: estado.grabacion),
+        ],
+        child: MaterialApp(
+          locale: const Locale('es'),
+          localizationsDelegates: AppLocalizations.localizationsDelegates,
+          supportedLocales: AppLocalizations.supportedLocales,
+          home: const Scaffold(body: PantallaInicio()),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle(const Duration(milliseconds: 100));
+
+    // Provider defers dependent notification to the next build phase, so a
+    // dirty-flag probe cannot observe it synchronously. Instead, log every
+    // element rebuilt per frame and look for the screen in that log.
+    final registro = <String>[];
+    final debugPrintOriginal = debugPrint;
+    debugPrintRebuildDirtyWidgets = true;
+    debugPrint = (String? message, {int? wrapWidth}) {
+      registro.add(message ?? '');
+    };
+    addTearDown(() {
+      debugPrintRebuildDirtyWidgets = false;
+      debugPrint = debugPrintOriginal;
+    });
+
+    // EQ preset change: a different notifier — must NOT rebuild the screen.
+    await estado.ecualizador.cambiarPresetPrincipal(PresetEcualizador.rock);
+    await tester.pump();
+    expect(registro.any((linea) => linea.contains('PantallaInicio')), isFalse);
+
+    // Probe control: a real data change DOES rebuild the screen.
+    registro.clear();
+    await tester.runAsync(estado.cargarPopulares);
+    await tester.pump();
+    expect(registro.any((linea) => linea.contains('PantallaInicio')), isTrue);
+    debugPrintRebuildDirtyWidgets = false;
+    debugPrint = debugPrintOriginal;
+    await tester.pumpAndSettle(const Duration(milliseconds: 100));
+  });
+}