pdf_signature/test/widget/signature_interaction_test....

73 lines
2.3 KiB
Dart

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'helpers.dart';
void main() {
testWidgets('Resize and move signature within page bounds', (tester) async {
await pumpWithOpenPdfAndSig(tester);
final overlay = find.byKey(const Key('signature_overlay'));
expect(overlay, findsOneWidget);
final posBefore = tester.getTopLeft(overlay);
// drag the overlay
await tester.drag(overlay, const Offset(30, -20));
await tester.pump();
final posAfter = tester.getTopLeft(overlay);
// Allow equality in case clamped at edges
expect(posAfter.dx >= posBefore.dx, isTrue);
expect(posAfter.dy <= posBefore.dy, isTrue);
// resize via handle
final handle = find.byKey(const Key('signature_handle'));
final sizeBefore = tester.getSize(overlay);
await tester.drag(handle, const Offset(40, 40));
await tester.pump();
final sizeAfter = tester.getSize(overlay);
expect(sizeAfter.width >= sizeBefore.width, isTrue);
expect(sizeAfter.height >= sizeBefore.height, isTrue);
});
testWidgets('Lock aspect ratio while resizing', (tester) async {
await pumpWithOpenPdfAndSig(tester);
final overlay = find.byKey(const Key('signature_overlay'));
final sizeBefore = tester.getSize(overlay);
final aspect = sizeBefore.width / sizeBefore.height;
await tester.tap(find.byKey(const Key('chk_aspect_lock')));
await tester.pump();
await tester.drag(
find.byKey(const Key('signature_handle')),
const Offset(60, 10),
);
await tester.pump();
final sizeAfter = tester.getSize(overlay);
final newAspect = (sizeAfter.width / sizeAfter.height);
expect((newAspect - aspect).abs() < 0.15, isTrue);
});
testWidgets('Background removal and adjustments controls change state', (
tester,
) async {
await pumpWithOpenPdfAndSig(tester);
// toggle bg removal
await tester.tap(find.byKey(const Key('swt_bg_removal')));
await tester.pump();
// move sliders
await tester.drag(
find.byKey(const Key('sld_contrast')),
const Offset(50, 0),
);
await tester.drag(
find.byKey(const Key('sld_brightness')),
const Offset(-50, 0),
);
await tester.pump();
// basic smoke: overlay still present
expect(find.byKey(const Key('signature_overlay')), findsOneWidget);
});
}