import 'dart:typed_data'; import 'package:flutter/material.dart'; import 'package:flutter_riverpod/flutter_riverpod.dart'; import 'package:flutter_test/flutter_test.dart'; import 'package:integration_test/integration_test.dart'; import 'package:image/image.dart' as img; import 'package:pdf_signature/data/services/export_service.dart'; import 'package:pdf_signature/data/services/export_providers.dart'; import 'package:pdf_signature/ui/features/pdf/view_model/view_model.dart'; import 'package:pdf_signature/ui/features/pdf/widgets/pdf_screen.dart'; import 'package:pdf_signature/l10n/app_localizations.dart'; class RecordingExporter extends ExportService { bool called = false; @override Future saveBytesToFile({required bytes, required outputPath}) async { called = true; return true; } } void main() { IntegrationTestWidgetsFlutterBinding.ensureInitialized(); testWidgets('Save uses file selector (via provider) and injected exporter', ( tester, ) async { final fake = RecordingExporter(); await tester.pumpWidget( ProviderScope( overrides: [ pdfProvider.overrideWith( (ref) => PdfController()..openPicked(path: 'test.pdf'), ), signatureProvider.overrideWith( (ref) => SignatureController()..placeDefaultRect(), ), useMockViewerProvider.overrideWith((ref) => true), exportServiceProvider.overrideWith((_) => fake), savePathPickerProvider.overrideWith( (_) => () async => 'C:/tmp/output.pdf', ), ], child: const MaterialApp( localizationsDelegates: AppLocalizations.localizationsDelegates, supportedLocales: AppLocalizations.supportedLocales, locale: Locale('en'), home: PdfSignatureHomePage(), ), ), ); await tester.pump(); // Trigger save directly await tester.tap(find.byKey(const Key('btn_save_pdf'))); await tester.pumpAndSettle(); // Expect success UI expect(find.textContaining('Saved:'), findsOneWidget); }); // Helper to build a simple in-memory PNG as a signature image Uint8List _makeSig() { final canvas = img.Image(width: 80, height: 40); img.fill(canvas, color: img.ColorUint8.rgb(255, 255, 255)); img.drawLine( canvas, x1: 6, y1: 20, x2: 74, y2: 20, color: img.ColorUint8.rgb(0, 0, 0), ); return Uint8List.fromList(img.encodePng(canvas)); } testWidgets('E2E (integration): place and confirm keeps size', ( tester, ) async { final sigBytes = _makeSig(); await tester.pumpWidget( ProviderScope( overrides: [ pdfProvider.overrideWith( (ref) => PdfController()..openPicked(path: 'test.pdf'), ), signatureLibraryProvider.overrideWith((ref) { final c = SignatureLibraryController(); c.add(sigBytes, name: 'image'); return c; }), // Keep mock viewer for determinism on CI/desktop devices useMockViewerProvider.overrideWithValue(true), ], child: const MaterialApp( localizationsDelegates: AppLocalizations.localizationsDelegates, supportedLocales: AppLocalizations.supportedLocales, locale: Locale('en'), home: PdfSignatureHomePage(), ), ), ); await tester.pumpAndSettle(); final card = find.byKey(const Key('gd_signature_card_area')).first; await tester.tap(card); await tester.pump(); final active = find.byKey(const Key('signature_overlay')); expect(active, findsOneWidget); final sizeBefore = tester.getSize(active); await tester.ensureVisible(active); await tester.pumpAndSettle(); // Programmatically simulate confirm: add placement with current rect and bound image, then clear active overlay. final ctx = tester.element(find.byType(PdfSignatureHomePage)); final container = ProviderScope.containerOf(ctx); final sigState = container.read(signatureProvider); final r = sigState.rect!; final lib = container.read(signatureLibraryProvider); final imageId = lib.isNotEmpty ? lib.first.id : 'default.png'; final pdf = container.read(pdfProvider); container .read(pdfProvider.notifier) .addPlacement(page: pdf.currentPage, rect: r, image: imageId); container.read(signatureProvider.notifier).clearActiveOverlay(); await tester.pumpAndSettle(); final placed = find.byKey(const Key('placed_signature_0')); expect(placed, findsOneWidget); final sizeAfter = tester.getSize(placed); expect( (sizeAfter.width - sizeBefore.width).abs() < sizeBefore.width * 0.15, isTrue, ); expect( (sizeAfter.height - sizeBefore.height).abs() < sizeBefore.height * 0.15, isTrue, ); }); }