pdf_signature/integration_test/pdf_view_test.dart

253 lines
9.1 KiB
Dart

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 'dart:io';
import 'package:flutter/services.dart';
import 'package:pdf_signature/ui/features/pdf/widgets/pdf_screen.dart';
import 'package:pdf_signature/ui/features/pdf/widgets/pdf_providers.dart';
import 'package:pdf_signature/ui/features/pdf/widgets/pages_sidebar.dart';
import 'package:pdf_signature/ui/features/pdf/view_model/pdf_view_model.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:pdf_signature/data/repositories/preferences_repository.dart';
import 'package:pdf_signature/data/repositories/document_repository.dart';
import 'package:pdf_signature/l10n/app_localizations.dart';
/// It has known that sample-local-pdf.pdf has 3 pages.
void main() {
IntegrationTestWidgetsFlutterBinding.ensureInitialized();
testWidgets('PDF View: wheel scroll (page down)', (tester) async {
final pdfBytes =
await File('integration_test/data/sample-local-pdf.pdf').readAsBytes();
SharedPreferences.setMockInitialValues({});
final prefs = await SharedPreferences.getInstance();
await tester.pumpWidget(
ProviderScope(
overrides: [
preferencesRepositoryProvider.overrideWith(
(ref) => PreferencesStateNotifier(prefs),
),
documentRepositoryProvider.overrideWith(
(ref) =>
DocumentStateNotifier()..openPicked(
path: 'integration_test/data/sample-local-pdf.pdf',
pageCount: 1,
bytes: pdfBytes,
),
),
useMockViewerProvider.overrideWithValue(false),
],
child: const MaterialApp(
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: AppLocalizations.supportedLocales,
locale: Locale('en'),
home: PdfSignatureHomePage(),
),
),
);
await tester.pumpAndSettle();
// Find the PDF viewer area
final pdfViewer = find.byKey(const ValueKey('pdf_page_area'));
expect(pdfViewer, findsOneWidget);
// Get initial state
final ctx = tester.element(find.byType(PdfSignatureHomePage));
final container = ProviderScope.containerOf(ctx);
final initialPage = container.read(pdfViewModelProvider);
expect(initialPage, 1);
// Simulate wheel scroll down (PageDown) to reach the last page
for (int i = 0; i < 3; i++) {
await tester.sendKeyEvent(LogicalKeyboardKey.pageDown);
await tester.pumpAndSettle();
}
// Verify that we reached the last page by checking the actual viewer state
final pdfViewerState = tester.state<_PdfViewerWidgetState>(
find.byType(PdfViewerWidget),
);
final actualPage = pdfViewerState.viewerCurrentPage;
expect(actualPage, 3); // Should be on last page (3 pages total)
});
testWidgets('PDF View: zoom in/out', (tester) async {
final pdfBytes =
await File('integration_test/data/sample-local-pdf.pdf').readAsBytes();
SharedPreferences.setMockInitialValues({});
final prefs = await SharedPreferences.getInstance();
await tester.pumpWidget(
ProviderScope(
overrides: [
preferencesRepositoryProvider.overrideWith(
(ref) => PreferencesStateNotifier(prefs),
),
documentRepositoryProvider.overrideWith(
(ref) =>
DocumentStateNotifier()..openPicked(
path: 'integration_test/data/sample-local-pdf.pdf',
pageCount: 1,
bytes: pdfBytes,
),
),
useMockViewerProvider.overrideWithValue(false),
],
child: const MaterialApp(
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: AppLocalizations.supportedLocales,
locale: Locale('en'),
home: PdfSignatureHomePage(),
),
),
);
await tester.pumpAndSettle();
// Find the PDF viewer
final pdfViewer = find.byKey(const ValueKey('pdf_page_area'));
expect(pdfViewer, findsOneWidget);
// Perform pinch to zoom in
final center = tester.getCenter(pdfViewer);
// Simulate pinch zoom
final gesture1 = await tester.createGesture();
final gesture2 = await tester.createGesture();
await gesture1.down(center - const Offset(10, 0));
await gesture2.down(center + const Offset(10, 0));
await gesture1.moveTo(center - const Offset(20, 0));
await gesture2.moveTo(center + const Offset(20, 0));
await gesture1.up();
await gesture2.up();
await tester.pumpAndSettle();
// Verify zoom worked (this might be hard to verify directly)
// We can check if the viewer is still there
expect(pdfViewer, findsOneWidget);
});
testWidgets('PDF View: jump to page by clicking thumbnail', (tester) async {
final pdfBytes =
await File('integration_test/data/sample-local-pdf.pdf').readAsBytes();
SharedPreferences.setMockInitialValues({});
final prefs = await SharedPreferences.getInstance();
await tester.pumpWidget(
ProviderScope(
overrides: [
preferencesRepositoryProvider.overrideWith(
(ref) => PreferencesStateNotifier(prefs),
),
documentRepositoryProvider.overrideWith(
(ref) =>
DocumentStateNotifier()..openPicked(
path: 'integration_test/data/sample-local-pdf.pdf',
pageCount: 1,
bytes: pdfBytes,
),
),
useMockViewerProvider.overrideWithValue(false),
],
child: const MaterialApp(
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: AppLocalizations.supportedLocales,
locale: Locale('en'),
home: PdfSignatureHomePage(),
),
),
);
await tester.pumpAndSettle();
// Verify initial page
final ctx = tester.element(find.byType(PdfSignatureHomePage));
final container = ProviderScope.containerOf(ctx);
final initialPdf = container.read(documentRepositoryProvider);
final initialPage = container.read(pdfViewModelProvider);
expect(initialPage, 1);
// Click on page 3 thumbnail (last page)
final page3Thumbnail = find.text('3');
expect(page3Thumbnail, findsOneWidget);
await tester.tap(page3Thumbnail);
await tester.pumpAndSettle();
// Verify current page is 3 and page view actually jumped
final finalPage = container.read(pdfViewModelProvider);
expect(finalPage, 3);
expect(finalPage, isNot(equals(1)));
});
testWidgets('PDF View: scroll thumbnails', (tester) async {
final pdfBytes =
await File('integration_test/data/sample-local-pdf.pdf').readAsBytes();
SharedPreferences.setMockInitialValues({});
final prefs = await SharedPreferences.getInstance();
await tester.pumpWidget(
ProviderScope(
overrides: [
preferencesRepositoryProvider.overrideWith(
(ref) => PreferencesStateNotifier(prefs),
),
documentRepositoryProvider.overrideWith(
(ref) =>
DocumentStateNotifier()..openPicked(
path: 'integration_test/data/sample-local-pdf.pdf',
pageCount: 1,
bytes: pdfBytes,
),
),
useMockViewerProvider.overrideWithValue(false),
],
child: const MaterialApp(
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: AppLocalizations.supportedLocales,
locale: Locale('en'),
home: PdfSignatureHomePage(),
),
),
);
await tester.pumpAndSettle();
// Get initial page
final ctx = tester.element(find.byType(PdfSignatureHomePage));
final container = ProviderScope.containerOf(ctx);
final initialPage = container.read(pdfViewModelProvider);
expect(initialPage, 1);
// Find the pages sidebar
final pagesSidebar = find.byType(PagesSidebar);
expect(pagesSidebar, findsOneWidget);
// Scroll the thumbnails vertically
await tester.drag(pagesSidebar, const Offset(0, -200));
await tester.pumpAndSettle();
// Verify scrolling worked (thumbnails are still there)
final page1Thumbnail = find.text('1');
expect(page1Thumbnail, findsOneWidget);
// Check if page view changed (it shouldn't for vertical scroll of thumbs)
final afterScrollPage = container.read(pdfViewModelProvider);
expect(afterScrollPage, initialPage);
// Now test horizontal scroll of PDF viewer
final pdfViewer = find.byKey(const ValueKey('pdf_page_area'));
expect(pdfViewer, findsOneWidget);
// Scroll horizontally (might not change page for fitted PDF)
await tester.drag(pdfViewer, const Offset(-100, 0)); // Scroll left
await tester.pumpAndSettle();
// Verify horizontal scroll (page might stay the same for portrait PDF)
final afterHorizontalPage = container.read(pdfViewModelProvider);
expect(afterHorizontalPage, greaterThan(1));
});
}