43 lines
1.3 KiB
Dart
43 lines
1.3 KiB
Dart
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import 'dart:ui' as ui;
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import 'package:flutter_test/flutter_test.dart';
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import 'package:badnote/editor/pdf/page_tile_cache.dart';
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import 'package:badnote/editor/pdf/page_tile_layer.dart';
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void main() {
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TestWidgetsFlutterBinding.ensureInitialized();
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test('PageTileCache LRU evicts oldest', () async {
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final cache = PageTileCache(maxTiles: 2);
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final a = await _tinyImage();
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final b = await _tinyImage();
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final c = await _tinyImage();
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cache.put(const TileKey('p1', 96), a);
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cache.put(const TileKey('p2', 96), b);
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expect(cache.length, 2);
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cache.put(const TileKey('p3', 96), c);
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expect(cache.length, 2);
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expect(cache.get(const TileKey('p1', 96)), isNull);
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});
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test('PageTileLayer falls back to last good', () async {
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final layer = PageTileLayer(cache: PageTileCache(maxTiles: 4));
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final img = await _tinyImage();
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layer.put(const TileKey('p1', 96), img);
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expect(layer.resolve(const TileKey('p1', 192)), same(img));
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// Don't call dispose() in unit test — cache dispose needs a frame.
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});
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}
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Future<ui.Image> _tinyImage() async {
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final recorder = ui.PictureRecorder();
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final canvas = ui.Canvas(recorder);
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canvas.drawRect(
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const ui.Rect.fromLTWH(0, 0, 2, 2),
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ui.Paint()..color = const ui.Color(0xFFFFFFFF),
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);
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final picture = recorder.endRecording();
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return picture.toImage(2, 2);
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}
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