feat(escuchar): replace discovery browser with embedded player and favorites grid

Restructures PantallaInicio's top of screen: a new _EscucharHero (square art, live/offline pill, VisualizadorAudio at barras: 30 / altura: 26 / color: liveGreen, a 5-action transport row - favorite, EQ toggle, stop, play/pause, sleep - plus a tool-tray entry chip opening the full player) replaces the old PluriScreenHeader hero, and a new "Tus emisoras" section (favorites preview, capped, "Ver todas") follows it. Per design ADR-7, EstadoRadio stays the single source of truth: the hero is a StatelessWidget with no cached fields, reading emisoraActual via context.select (uuid-based equality scopes rebuilds to real station changes) and the fast-changing playback status via StreamBuilder, the same pattern _Controles/MiniReproductor already use. The still-present discovery sections (_seccionCercanas onward, including the old grid) are deliberately left in place - WU6 relocates them to Buscar and deletes them from here; removing them now would leave that content nowhere until WU6 lands. MiniReproductor gains a `visible` parameter (default true) and a measured `static const double altura`. app.dart passes `visible: indice != RaizPluriWave.escuchar.index`, hiding it visually only (SizedBox.shrink()) while Escuchar is active, since the hero already shows the same station - the State stays mounted so its didChangeDependencies side effect (configurarLocalizaciones, S3-R3) keeps running regardless of tab. altura was measured empirically (72.0, via tester.getSize) rather than guessed, backing a new derived PluriLayout.escucharBottomChromeInset constant now wired into PantallaInicio's own bottom padding. "Ver todas" switches roots via EstadoNavegacionRaiz.irA(favoritos), verified via a NavigatorObserver asserting the push count is unchanged (switches tabs, does not push). Fixed a pre-existing test-infrastructure gap while writing the anti-cache test: no test in this codebase had ever exercised ServicioAudio.androidAudioSessionIdStream against a bare FakeServicioAudio (pantalla_reproductor.dart has always read it but has no test file at all) - the real getter needs registrarHandler() (main.dart, production only) and threw otherwise. Added an empty stream override to FakeServicioAudio, matching VisualizadorAudio's own documented no-native-session fallback. Tests: 614 -> 618 (2 skipped, unchanged). flutter analyze unchanged at 1 pre-existing info. git diff empty for visualizador_audio.dart and estado_radio.dart - this WU touches neither.
2026-07-29 00:12:05 +02:00
parent 504a13641f
commit 3a803ce2bf
24 changed files with 1038 additions and 57 deletions
@@ -79,4 +79,80 @@ void main() {
      );
    },
  );
+
+  testWidgets(
+    'WU5 hazard: MiniReproductor(visible: false) renders nothing, but '
+    'configurarLocalizaciones still runs in didChangeDependencies '
+    '(hiding it structurally instead would silently break the S3-R3 '
+    'contract)',
+    (tester) async {
+      final estado = _EstadoRadioContador();
+      addTearDown(estado.dispose);
+      // A station IS playing — if a naive implementation hid the bar only
+      // because emisoraActual were null, this would render the full bar
+      // instead of proving `visible: false` itself suppresses it.
+      await estado.reproducir(emisoraDemo(uuid: 'a', nombre: 'Station A'));
+
+      await tester.pumpWidget(
+        ChangeNotifierProvider<EstadoRadio>.value(
+          value: estado,
+          child: const MaterialApp(
+            locale: Locale('en'),
+            localizationsDelegates: AppLocalizations.localizationsDelegates,
+            supportedLocales: AppLocalizations.supportedLocales,
+            home: Scaffold(body: MiniReproductor(visible: false)),
+          ),
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      expect(find.text('Station A'), findsNothing);
+      expect(
+        estado.llamadasConfigurar,
+        1,
+        reason:
+            'didChangeDependencies must still run its S3-R3 side effect '
+            'while visually hidden — the State stays mounted, only build() '
+            'is short-circuited',
+      );
+    },
+  );
+
+  testWidgets(
+    'WU5 ADR-7(b): MiniReproductor.altura matches the widget\'s actual '
+    'laid-out height (measured, not guessed) within a small tolerance',
+    (tester) async {
+      final estado = _EstadoRadioContador();
+      addTearDown(estado.dispose);
+      await estado.reproducir(emisoraDemo(uuid: 'a', nombre: 'Station A'));
+
+      await tester.pumpWidget(
+        ChangeNotifierProvider<EstadoRadio>.value(
+          value: estado,
+          child: const MaterialApp(
+            locale: Locale('en'),
+            localizationsDelegates: AppLocalizations.localizationsDelegates,
+            supportedLocales: AppLocalizations.supportedLocales,
+            home: Scaffold(body: MiniReproductor()),
+          ),
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      final alturaReal = tester.getSize(find.byType(MiniReproductor)).height;
+
+      // +-4px tolerance: font metrics can shift a hair across machines: the
+      // constant only backs a content-padding estimate (PluriLayout.
+      // escucharBottomChromeInset), not a pixel-perfect layout coupling.
+      expect(
+        MiniReproductor.altura,
+        closeTo(alturaReal, 4),
+        reason:
+            'MiniReproductor.altura must be measured from the real layout, '
+            'not guessed — if this fails, re-measure via '
+            "tester.getSize(find.byType(MiniReproductor)) and update the "
+            'constant',
+      );
+    },
+  );
 }