310 lines
10 KiB
Dart
310 lines
10 KiB
Dart
// This is a basic Flutter widget test.
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//
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// To perform an interaction with a widget in your test, use the WidgetTester
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// utility in the flutter_test package. For example, you can send tap and scroll
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// gestures. You can also use WidgetTester to find child widgets in the widget
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// tree, read text, and verify that the values of widget properties are correct.
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'dart:typed_data';
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import 'dart:ui' show PointerDeviceKind;
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import 'package:pdf_signature/features/pdf/viewer.dart';
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import 'package:pdf_signature/features/share/export_service.dart';
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import 'package:hand_signature/signature.dart' as hand;
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// Fakes for export service (top-level; Dart does not allow local class declarations)
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class RecordingExporter extends ExportService {
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bool called = false;
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}
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class BasicExporter extends ExportService {}
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void main() {
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Future<void> pumpWithOpenPdf(WidgetTester tester) async {
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await tester.pumpWidget(
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ProviderScope(
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overrides: [
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pdfProvider.overrideWith(
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(ref) => PdfController()..openPicked(path: 'test.pdf'),
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),
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useMockViewerProvider.overrideWith((ref) => true),
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],
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child: const MaterialApp(home: PdfSignatureHomePage()),
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),
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);
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await tester.pump();
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}
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Future<void> pumpWithOpenPdfAndSig(WidgetTester tester) async {
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await tester.pumpWidget(
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ProviderScope(
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overrides: [
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pdfProvider.overrideWith(
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(ref) => PdfController()..openPicked(path: 'test.pdf'),
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),
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signatureProvider.overrideWith(
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(ref) => SignatureController()..placeDefaultRect(),
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),
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useMockViewerProvider.overrideWith((ref) => true),
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],
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child: const MaterialApp(home: PdfSignatureHomePage()),
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),
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);
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await tester.pump();
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}
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testWidgets('Open a PDF and navigate pages', (tester) async {
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await pumpWithOpenPdf(tester);
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final pageInfo = find.byKey(const Key('lbl_page_info'));
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expect(pageInfo, findsOneWidget);
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expect((tester.widget<Text>(pageInfo)).data, 'Page 1/5');
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await tester.tap(find.byKey(const Key('btn_next')));
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await tester.pump();
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expect((tester.widget<Text>(pageInfo)).data, 'Page 2/5');
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await tester.tap(find.byKey(const Key('btn_prev')));
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await tester.pump();
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expect((tester.widget<Text>(pageInfo)).data, 'Page 1/5');
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});
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testWidgets('Jump to a specific page', (tester) async {
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await pumpWithOpenPdf(tester);
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final goto = find.byKey(const Key('txt_goto'));
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await tester.enterText(goto, '4');
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await tester.testTextInput.receiveAction(TextInputAction.done);
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await tester.pump();
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final pageInfo = find.byKey(const Key('lbl_page_info'));
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expect((tester.widget<Text>(pageInfo)).data, 'Page 4/5');
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});
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testWidgets('Select a page for signing', (tester) async {
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await pumpWithOpenPdf(tester);
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await tester.tap(find.byKey(const Key('btn_mark_signing')));
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await tester.pump();
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// signature actions appear (picker-based now)
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expect(find.byKey(const Key('btn_load_signature_picker')), findsOneWidget);
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});
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testWidgets('Show invalid/unsupported file SnackBar via test hook', (
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tester,
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) async {
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await pumpWithOpenPdf(tester);
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final dynamic state =
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tester.state(find.byType(PdfSignatureHomePage)) as dynamic;
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state.debugShowInvalidSignatureSnackBar();
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await tester.pump();
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expect(find.text('Invalid or unsupported file'), findsOneWidget);
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});
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testWidgets('Import a signature image', (tester) async {
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await pumpWithOpenPdfAndSig(tester);
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await tester.tap(find.byKey(const Key('btn_mark_signing')));
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await tester.pump();
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// overlay present from provider override
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expect(find.byKey(const Key('signature_overlay')), findsOneWidget);
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});
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// Removed: Load Invalid button is not part of normal app UI.
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testWidgets('Resize and move signature within page bounds', (tester) async {
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await pumpWithOpenPdfAndSig(tester);
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await tester.tap(find.byKey(const Key('btn_mark_signing')));
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await tester.pump();
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final overlay = find.byKey(const Key('signature_overlay'));
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final posBefore = tester.getTopLeft(overlay);
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// drag the overlay
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await tester.drag(overlay, const Offset(30, -20));
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await tester.pump();
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final posAfter = tester.getTopLeft(overlay);
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// Allow equality in case clamped at edges
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expect(posAfter.dx >= posBefore.dx, isTrue);
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expect(posAfter.dy <= posBefore.dy, isTrue);
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// resize via handle
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final handle = find.byKey(const Key('signature_handle'));
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final sizeBefore = tester.getSize(overlay);
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await tester.drag(handle, const Offset(40, 40));
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await tester.pump();
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final sizeAfter = tester.getSize(overlay);
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expect(sizeAfter.width >= sizeBefore.width, isTrue);
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expect(sizeAfter.height >= sizeBefore.height, isTrue);
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});
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testWidgets('Lock aspect ratio while resizing', (tester) async {
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await pumpWithOpenPdfAndSig(tester);
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await tester.tap(find.byKey(const Key('btn_mark_signing')));
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await tester.pump();
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final overlay = find.byKey(const Key('signature_overlay'));
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final sizeBefore = tester.getSize(overlay);
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final aspect = sizeBefore.width / sizeBefore.height;
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await tester.tap(find.byKey(const Key('chk_aspect_lock')));
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await tester.pump();
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await tester.drag(
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find.byKey(const Key('signature_handle')),
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const Offset(60, 10),
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);
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await tester.pump();
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final sizeAfter = tester.getSize(overlay);
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final newAspect = (sizeAfter.width / sizeAfter.height);
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expect(
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(newAspect - aspect).abs() < 0.15,
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isTrue,
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); // approximately preserved
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});
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testWidgets('Background removal and adjustments controls change state', (
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tester,
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) async {
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await pumpWithOpenPdfAndSig(tester);
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await tester.tap(find.byKey(const Key('btn_mark_signing')));
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await tester.pump();
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// toggle bg removal
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await tester.tap(find.byKey(const Key('swt_bg_removal')));
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await tester.pump();
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// move sliders
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await tester.drag(
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find.byKey(const Key('sld_contrast')),
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const Offset(50, 0),
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);
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await tester.drag(
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find.byKey(const Key('sld_brightness')),
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const Offset(-50, 0),
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);
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await tester.pump();
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// basic smoke: overlay still present
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expect(find.byKey(const Key('signature_overlay')), findsOneWidget);
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});
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testWidgets('DrawCanvas exports non-empty bytes on confirm', (tester) async {
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Uint8List? exported;
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final sink = ValueNotifier<Uint8List?>(null);
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final control = hand.HandSignatureControl();
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await tester.pumpWidget(
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MaterialApp(
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home: Scaffold(
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body: DrawCanvas(
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control: control,
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debugBytesSink: sink,
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onConfirm: (bytes) {
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exported = bytes;
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},
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),
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),
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),
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);
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await tester.pumpAndSettle();
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// Draw a simple stroke inside the pad
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final pad = find.byKey(const Key('hand_signature_pad'));
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expect(pad, findsOneWidget);
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final rect = tester.getRect(pad);
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final g = await tester.startGesture(
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Offset(rect.left + 20, rect.center.dy),
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kind: PointerDeviceKind.touch,
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);
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for (int i = 0; i < 10; i++) {
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await g.moveBy(
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const Offset(12, 0),
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timeStamp: Duration(milliseconds: 16 * (i + 1)),
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);
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await tester.pump(const Duration(milliseconds: 16));
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}
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await g.up();
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await tester.pump(const Duration(milliseconds: 50));
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// Confirm export
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await tester.tap(find.byKey(const Key('btn_canvas_confirm')));
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// Wait until notifier receives bytes
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await tester.pumpAndSettle(const Duration(milliseconds: 50));
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await tester.runAsync(() async {
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final end = DateTime.now().add(const Duration(seconds: 2));
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while (sink.value == null && DateTime.now().isBefore(end)) {
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await Future<void>.delayed(const Duration(milliseconds: 20));
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}
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});
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exported ??= sink.value;
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expect(exported, isNotNull);
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expect(exported!.isNotEmpty, isTrue);
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});
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testWidgets('Save uses file selector (via provider) and injected exporter', (
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tester,
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) async {
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final fake = RecordingExporter();
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await tester.pumpWidget(
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ProviderScope(
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overrides: [
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pdfProvider.overrideWith(
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(ref) => PdfController()..openPicked(path: 'test.pdf'),
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),
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signatureProvider.overrideWith(
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(ref) => SignatureController()..placeDefaultRect(),
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),
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useMockViewerProvider.overrideWith((ref) => true),
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exportServiceProvider.overrideWith((_) => fake),
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savePathPickerProvider.overrideWith(
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(_) => () async => 'C:/tmp/output.pdf',
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),
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],
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child: const MaterialApp(home: PdfSignatureHomePage()),
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),
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);
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await tester.pump();
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// Mark signing to set signedPage
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await tester.tap(find.byKey(const Key('btn_mark_signing')));
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await tester.pump();
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// Trigger save
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await tester.tap(find.byKey(const Key('btn_save_pdf')));
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await tester.pumpAndSettle();
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// With refactor, we no longer call boundary-based export here; still expect success UI.
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expect(find.textContaining('Saved:'), findsOneWidget);
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});
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testWidgets('Only signed page shows overlay during export flow', (
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tester,
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) async {
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await tester.pumpWidget(
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ProviderScope(
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overrides: [
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pdfProvider.overrideWith(
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(ref) => PdfController()..openPicked(path: 'test.pdf'),
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),
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signatureProvider.overrideWith(
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(ref) => SignatureController()..placeDefaultRect(),
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),
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useMockViewerProvider.overrideWith((ref) => true),
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exportServiceProvider.overrideWith((_) => BasicExporter()),
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savePathPickerProvider.overrideWith(
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(_) => () async => 'C:/tmp/output.pdf',
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),
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],
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child: const MaterialApp(home: PdfSignatureHomePage()),
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),
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);
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await tester.pump();
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// Mark signing on page 1
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await tester.tap(find.byKey(const Key('btn_mark_signing')));
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await tester.pump();
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// Save -> open dialog -> confirm
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await tester.tap(find.byKey(const Key('btn_save_pdf')));
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await tester.pumpAndSettle();
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// After export, overlay visible again
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expect(find.byKey(const Key('signature_overlay')), findsOneWidget);
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});
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}
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