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 +1,67 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pluriwave/estado/estado_busqueda.dart';
+
+import '../helpers/fakes.dart';
+
+/// S4-R3: EstadoBusqueda owns search query, results and loading state
+/// previously in EstadoRadio.
+void main() {
+  test('actualizar la búsqueda notifica a los listeners', () async {
+    final busqueda = EstadoBusqueda(
+      radio: FakeServicioRadio(
+        busqueda: [emisoraDemo(uuid: 'b-1', nombre: 'Resultado Uno')],
+      ),
+    );
+    addTearDown(busqueda.dispose);
+
+    var notificaciones = 0;
+    busqueda.addListener(() => notificaciones++);
+
+    await busqueda.buscar(nombre: 'uno');
+
+    // At least once for the loading flag and once for the results.
+    expect(notificaciones, greaterThanOrEqualTo(2));
+    expect(busqueda.cargando, isFalse);
+    expect(busqueda.resultados.map((e) => e.uuid), contains('b-1'));
+  });
+
+  test('cargarMas pagina resultados y acota memoria', () async {
+    final emisoras = List.generate(
+      70,
+      (i) => emisoraDemo(uuid: 'page-$i', nombre: 'Page $i'),
+    );
+    final busqueda = EstadoBusqueda(
+      radio: FakeServicioRadio(busqueda: emisoras),
+    );
+    addTearDown(busqueda.dispose);
+
+    await busqueda.buscar(nombre: 'page');
+    expect(busqueda.resultados, hasLength(30));
+    expect(busqueda.hayMas, isTrue);
+
+    await busqueda.cargarMas();
+    expect(busqueda.resultados, hasLength(60));
+
+    await busqueda.cargarMas();
+    expect(busqueda.resultados, hasLength(70));
+    expect(busqueda.hayMas, isFalse);
+  });
+
+  test(
+    'resultados conserva identidad entre lecturas sin cambios (S4-R5)',
+    () async {
+      final busqueda = EstadoBusqueda(
+        radio: FakeServicioRadio(
+          busqueda: [emisoraDemo(uuid: 'b-1', nombre: 'Resultado Uno')],
+        ),
+      );
+      addTearDown(busqueda.dispose);
+
+      await busqueda.buscar(nombre: 'uno');
+
+      // Identity-stable getters let `context.select` skip rebuilds when the
+      // underlying data did not change.
+      expect(identical(busqueda.resultados, busqueda.resultados), isTrue);
+    },
+  );
+}