import 'dart:io';

import 'package:flutter_test/flutter_test.dart';

/// S1 (Tier 1 visual fidelity): the prototype (`t4`) never draws a global
/// `AppBar` — every root owns its own 56px title row instead (see
/// `PluriRootHeader` and `root_header_wiring_test.dart`). `app.dart` used to
/// wrap every tab in `PluriWaveScaffold(appBar: AppBar(...))`; this is a
/// fast source-level regression guard for that removal, since the widget
/// under it (`_PaginaPrincipal`) is library-private and constructs real
/// platform-backed services, so it cannot be safely widget-tested here.
void main() {
  test('app.dart no longer constructs a global Material AppBar', () {
    final source = File('lib/app.dart').readAsStringSync();
    expect(
      source.contains('AppBar('),
      isFalse,
      reason:
          'the prototype has no global app bar — each root draws its own '
          'PluriRootHeader inside its content instead',
    );
  });
}